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Universal PressureTransmitter
UniTrans
Operating Manual
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Universal Transmitter UniTransContents
Published
3.4.0
0
Subject to change due to technical modifications. Copyright WIKA Instrument Corporation
WIKA Instrument Corp. 1000 Wiegand Blvd. Lawrenceville, GA 30043
(80 ) 645 - 0606 Fax (770) 277 - 2641 E-mail: tronic@wika.com http://www.wika.com 1
Contents
1 General Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2 Product Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32.1 Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1.1 Pressure Transducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32.1.2 Control Interface Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1.3 Display Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42.2 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2.1 Functions of Devices without Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2.2 Functions of Devices with Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52.3 Installation Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83.1 Input-values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.2 Output-values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83.3 Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.4 Auxiliary Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93.5 Ambient Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.6 Process Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.7 Identification Plates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .114.1 Pressure Transmitter Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.2 Display Unit Upgrades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.3 Housing Reconfiguration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124.4 Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.5 Pressure Compensation when using a Relative Pressure Sensor . . . . . . . . . . . . 14
5 Operation of Devices without Displays . . . . . . . . . . . . . . . . . . . . . . .155.1 Preparation for Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155.2 Key Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.3 Calibration with Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.3.1 Zero Point Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165.3.2 Span Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.4 Calibration without Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175.4.1 Zero Point Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.4.2 Span Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185.5 Integration Time (Dampening) Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.6 Reset to Default . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
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Universal Transmitter UniTransContents
Subject to change due to technical modifications. Copyright WIKA Instrument Corporation
WIKA Instrument Corp. 1000 Wiegand Blvd. Lawrenceville, GA 30043
(80 ) 64 - 0606 Fax (770) 277 - 2641 E-mail: tronic@wika.com http://www.wika.com2
6 Operation of Devices with Displays . . . . . . . . . . . . . . . . . . . . . . . . . . 206.1 The Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .206.2 Key Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
6.3 The Programming Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6.4 Default Data (factory setting) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226.5 Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
6.5.1 Main Menu: Display (changing measured value units, changing line 2 and line 3) 246.5.2 Main Menu: Calibration of zero and span (with / without pressure) . . . . . . . . . . . .26
6.5.3 Main Menu: Output (Integration time, Inversion, Alarm, Limits, Current offset) . . .296.5.4 Main Menu: Evaluation (Reference table, Linear activation, Media density) . . . . . 33
6.5.5 Main Menu: Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
6.5.6 Main Menu: Service (Mounting Correction, Loop Test, Timer, Reset, Password) .37
7 Diagnostics and Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
8 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
9 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 429.1 Dimension Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
9.2 Warranty Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .439.3 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
9.4 Units of Pressure Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
1 General Safety Instructions
Observe the national safety and accident prevention regulations, as well as
the following safety instructions in this operating manual when working with
the hydrostatic pressure transducer.
Any operation not described in the following instructions should not be
used.
If a fault cannot be corrected, the device should be removed from operation
and stored to prevent its reinstallation.
Repairs should only be performed by the manufacturer. All other repairs or
device modifications are unauthorized.
Other important safety guidelines are located in the individual sections of
this instruction manual.
W a r n i n g
W a r n i n g
A t t e n t i o n
A t t e n t i o n
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Universal Transmitter UniTransProduct Description
Published
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Subject to change due to technical modifications. Copyright WIKA Instrument Corporation
WIKA Instrument Corp. 1000 Wiegand Blvd. Lawrenceville, GA 30043
(80 ) 645 - 2641 Fax (770) 277 - 2641 E-mail: tronic@wika.com http://www.wika.com 3
2 Product Description
The UniTrans pressure transmitter (also called a pressure transducer) can be used
for level control and pressure measurement in process applications. A variety of pro-
cess connections, measurement ranges, electrical interfaces and display optionsenable a wide range of applications.
2.1 Construction
The UniTrans consists of a pressure sensor, a control interface unit and a housing
cover with optional display. Different modular configurations are available allowing a
variety of designs.
2.1.1 Pressure Transducer
The pressure transducer has a piezo-resistive or thin film measurement cell depend-
ing on the pressure range. The sensor is temperature compensated, with a fully
welded stainless steel construction which is helium leak tested. Pressure transducers
do not have internal seals, which allow for a wider range of media compatibility.
For corrosive or highly viscous medias, different materials and process connections
(including chemical seals) are available for the wetted parts, please consult the fac-tory.
2.1.2 Control Interface Unit
The control interface unit contains the terminal compartment and the keypad used to
program the device. The four keys must be active (unlocked) before use. The keypad
is locked during normal operation to protect data and functions previously entered.
The keypad automatically locks if not being used for 10 minutes. The control interface
Direct Mounted
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Universal Transmitter UniTransProduct Description
Subject to change due to technical modifications. Copyright WIKA Instrument Corporation
WIKA Instrument Corp. 1000 Wiegand Blvd. Lawrenceville, GA 30043
(80 ) 645 - 0606 Fax (770) 277 - 2641 E-mail: tronic@wika.com http://www.wika.com4
converts the sensors digital signal into a standard 4-20 mA current signal.
2.1.3 Display Unit
The measured-value indicator has four digits (in a 7-segment display) and symbols.
Below it, is line 1 (16-segment display) used to display error codes and the units ofmeasure. The unit of measure can be selected by the operator.
Additional information is displayed in lines 2 and 3 (16-segment display). The operator
can enter commands in the programming mode on the display unit by means of menu
driven prompts.
The UniTrans with a display offers a higher number of programming and control inter-
face options. These options include alarm status, dampening, signal inversion, tank
linearization and diagnostic messages.
Display units can be easily upgraded (see Section 4.2).
CALIBRATION
RANGE
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Universal Transmitter UniTransProduct Description
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Subject to change due to technical modifications. Copyright WIKA Instrument Corporation
WIKA Instrument Corp. 1000 Wiegand Blvd. Lawrenceville, GA 30043
(80 ) 645 - 2641 Fax (770) 277 - 2641 E-mail: tronic@wika.com http://www.wika.com 5
2.2 Function
The mode of operation for signal conversion is the same for all versions. The pressure
transducer converts the existing pressure into an electrical signal. Microelectronics
further process the input signal and produce a proportional 4-20 mA standard signal.
The display-version allows programming (parameterization) and the display of ex-
panded functions such as inversion, dampening, alarm status and linearization.
2.2.1 Functions of Devices without Displays
Calibration of zero and span with pressure (see 5.3)
Calibration of zero and span without pressure (dry adjustment) (see 5.4)
Setting the dampening / integrating the output signal 0-40 s (see 5.5)
Reset to manufacturers default values (see 5.6)
2.2.2 Functions of Devices with Displays
Optional units of measure for measured-values (mbar, bar, psi, mA, m, mm WS
(see 6.5.1)
Temperature and Min/Max values shown in display (see 6.5.1
Nominal pressure range of the sensor shown in display (see 6.5.1)
Zero and span calibration (with/without pressure) (see 6.5.2)
Dampening setting / integration of output signal 0-40 s (see 6.5.3)
Inversion of the output current signal (see 6.5.3
Alarm output current value setting (3.6 mA or 21 mA) (see 6.5.3)
Setting the limits of the output signal (see 6.5.3)
Offset of the output signal (see 6.5.3)
Entry of a table function for the linearization of the output signal (see 6.5.4)
Entry of medium consistency (see 6.5.4)
Selecting the language of the display (see 6.5.5)
Mounting correction of the sensor (see 6.5.6)
Measuring circuit test function (see 6.5.6)
Reset functions (see 6.5.6)
Password activation (see 6.5.6)
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Universal Transmitter UniTransProduct Description
Subject to change due to technical modifications. Copyright WIKA Instrument Corporation
WIKA Instrument Corp. 1000 Wiegand Blvd. Lawrenceville, GA 30043
(80 ) 645 - 0606 Fax (770) 277 - 2641 E-mail: tronic@wika.com http://www.wika.com6
2.3 Installation Examples
The UniTrans is primarily used to detect the hydrostatic pressure of liquids in tanks.
The measured pressure is provided as a height proportion or level control signal. The
pressure is measured using absolute (against a vacuum) or relative (against external
or air pressure) measurement depending on the type of sensor selected.
The UniTrans is also used for process pressure measurement within pipes and con-
tainers.
Level Control: Level Control:
Externally mounted Combined pressure and head pressure
(with flush diaphragm) are measured by two externally mounted
pressure transducers. The two signals
are analyzed and the differential is cal-
culated by a PLC or suitable signal con-
verter.
Process Pressure Measurement: Process Pressure Measurement: Used to measure pressure of liquids Used to measure container pressure.
or gases in pipelines.
007-DS-D 008-DS-D
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(80 ) 645 - 2641 Fax (770) 277 - 2641 E-mail: tronic@wika.com http://www.wika.com 7
Process Pressure Measurement: Process Pressure Measurement:
Installed behind feed pumps for Installed in front of and behind the filter.
process control or monitoring pump Uses the pressure differential for moni-
functions. toring the function or accumulation of dirt
in the filter. Both output signals are pro-
cessed by a PLC or signal converter.
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Universal Transmitter UniTransTechnical Data
Subject to change due to technical modifications. Copyright WIKA Instrument Corporation
WIKA Instrument Corp. 1000 Wiegand Blvd. Lawrenceville, GA 30043
(80 ) 64 - 0606 Fax (770) 277 - 2641 E-mail: tronic@wika.com http://www.wika.com8
3 Technical Data
3.1 Input-values
3.2 Output-values
Pressure Range(Absolute pressure upon request,
please contact factory)
0 - 5 PSIG0 - 25 PSIG
0 - 100 PSIG
0 - 250 PSIG
0 - 500 PSIG
0 - 1500 PSIG
0 - 3000 PSIG
0 - 7500 PSIG
0 - 15,000 PSIG
others - 15,000 PSIG
Output signal 4 - 20 mA
Accuracy (linearity, including hyster-
esis, repeatability) [% of Span]
< 0.10 at ranges of > 600 PSI
< 0.15 at ranges of < 600 PSI
Turn down effect on accuracy:
- turn down up to 1 : 5
- turn down 1 : 6 to 1 : 20
no change to accuracy
accuracy X (turn down / 5)for example if turndown is 1 : 15, then accuracy =0.10X(15/5) = 0.3%
Load RA < (UB12 V)/23 mA
Fault signal 3.6 mA or 21 mA, programmable
Integration time/Damping time 0 s, 1 s, 5 s, 20 s, 40 s, programmable
Adjustment of the span 1 : 20
Integrated lightning protection optional
Zero point adjustment 0 - 99 %
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Published
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WIKA Instrument Corp. 1000 Wiegand Blvd. Lawrenceville, GA 30043
(80 ) 645 - 0606 Fax (770) 277 - 2641 E-mail: tronic@wika.com http://www.wika.com 9
3.3 Construction
3.4 Auxiliary Power
3.5 Ambient Conditions
Process connections:
Type UT-10
Type UT-11
1/2 NPT
G 1B diaphragm with O-Ring
(Ranges: 0 - 25 PSI and
below
G 1/2 B diaphragm with O-Ring
(Ranges:
0 - 100 PSI to 0 - 7500 PSI)
G 1 1/2 B diaphragm with O-Ring
(Ranges: 0 - 25 PSI and
below
Materials:Housings
(UT-10)
(UT-11)
Internal transmission fluid
durable, fiberglass plastic (PBT)
CrNi-steel 1.4571 and 1.4542
CrNi-steel 1.4571{Hastelloy C4} and
O-Ring: NBR {Viton or EPDM}
Silicon Oil {Halocarbon oil for oxygen
applications}; {vegetable oil}
Electrical connection and protection
method per EN 60 529/ IEC529
M 20 x 1.5 cable gland with internal ter-
minal block (see 4.4)
Electronic protection methods Reverse polarity, overload and short cir-
cuit protection
Power supply 12 - 36 V DC
Ambient temperature -40 F to +185 F (-40 C to +85 C)
(-4 F to +158 F with display)
Storage temperature -40 F to +185 F (-40 C to +85 C)
(-31 F to +176 F with display)
Climate class D per DIN IEC 654-1
Protection method per EN 60 529 IP 65 (IP 67 upon request
EMC per EN 50 081-2, EN 50 082-2,
NAMUR NE 21
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Universal Transmitter UniTransTechnical Data
Subject to change due to technical modifications. Copyright WIKA Instrument Corporation
WIKA Instrument Corp. 1000 Wiegand Blvd. Lawrenceville, GA 30043
(80 ) 64 - 0606 Fax (770) 277 - 2641 E-mail: tronic@wika.com http://www.wika.com10
3.6 Process Conditions
3.7 Identification Plates
Media temperatures -22 F to +221 F (-30 C to +105 C)
Max. wash-down temperatures 248 F (120 C)
The device should not be subjected to the wash-down temperature for
more than 10 minutes at a time! A maximum wash-down temperature of
221 F (105 C)is allowed for devices installed in hazardous areas.A t t e n t i o n
:Signal / Signal / Signal de sortie
:Hilfsenergie / Power supply / Alimentation
S # :Serien-Nr. / Fabrik-Nr. / Serial No. / N Srie
P # :Erzeugnis-Nr. / Product No. / Code Article
Alexander Wiegand GmbH & Co. . D-63911 Klingenberg 9E
0 ... 40 bar 0,15 %
4 ... 20 mA 1+ 2-
DC 12 ... 36 V
P # 0639080
S # 0639110Code UT-10-A-BBM-GD-ZMIAAZZ-Z
Transmitter UT-10
TRONIC LINE
Anschlsse/terminals /bornes
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(80 ) 645 - 0606 Fax (770) 277 - 2641 E-mail: tronic@wika.com http://www.wika.com 11
4 Installation
The device should be installed/operated in accordance with applicable national and
local safety regulations, this operating manual and generally recognized industrystandards.
4.1 Pressure Transmitter Installation
Installation Using Welding Support:
Insert a filler piece (a pressure transmitter dummy) into the welding support (P-1adaptor is available from the factory).
Weld the support into the container/pipe wall (section-weld process).
Remove the filler piece.
Install the pressure transmitter in the welding support.
4.2 Display Unit Upgrades
The display unit can be easily upgraded at any time.
Remove the housing cover and the support cable.
Attach the display units support cable to the same site.
Plug the display units connector into the appropriate jack.
The display unit can be mounted at 90 angles.
Fasten the display unit with screws.
The pressure transmitters diaphragm should not come into contact with
hard or sharp objects.
A t t e n t i o n
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(80 ) 64 - 0606 Fax (770) 277 - 2641 E-mail: tronic@wika.com http://www.wika.com12
All functions are programmable when the pressure transmitter has been upgraded
with a display unit. The adjusted parameters are stored after the display unit is re-
moved.
The display unit can be rotated about 300, so that it can be read under various instal-
lation conditions. The housing cover with built-in display can be fastened to the hous-
ing at all four side positions.
4.3 Housing Reconfiguration
Rotate the housing of the display unit in order to be able to read the display from
above when the pressure transmitter is installed in an upright position.
Loosen the 4 internal hexagonal screws.
Lightly lift off the housing with the display unit.
Carefully turn the housing 180.
Re-tighten the screws.
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(80 ) 645 - 0606 Fax (770) 277 - 2641 E-mail: tronic@wika.com http://www.wika.com 13
4.4 Electrical Connection
The supply voltage is between 12 and 36 V DC (12 and 30 V for intrinsic safety de-
vices). The power supply and the output signal are conducted across a two-wire cable
(max. 12 mm outer diameter, max. 14 AWG) and connected in accordance with the
pin configuration.
Auxiliary power can be supplied by a power unit, a transmitter power supply or by
means of a PLC connection.
It is suggested to use a design with integrated lightning protection to prevent damage
due to voltage spikes.
Please observe local installation regulations.
The terminal voltage should not exceed 36 V (30 V for intrinsic safety
devices).A t t e n t i o n
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(80 ) 64 - 0606 Fax (770) 277 - 2641 E-mail: tronic@wika.com http://www.wika.com14
Terminal Configuration
Ground
L- Negative
L+ Positive
I Test circuit; connect the ampere meter between terminals L+ and I
The unit must be properly grounded in order to guarantee EMC resistance.
4.5 Pressure Compensation when using a Relative Pressure Sensor
A Gortex diaphragm is used to compensate for atmospheric pressure under the
IP 65 Protection Method.A special cable with a vent tube is used to compensate for atmospheric under the
IP 67 Protection Method.
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(80 ) 645 - 0606 Fax (770) 277 - 2641 E-mail: tronic@wika.com http://www.wika.com 15
5 Operation of Devices without Displays
5.1 Preparation for Programming
This unit can be programmed before or after installation.
Connect an ammeter to the devices output (between terminals I and L+).
Note that after each action, a brief oscillation/deflection of 20 mA occurs (verifica-
tion of a successful action).
The following device functions can be programmed without a display unit:
Zero point adjustment with a full or empty container (with/without pressure)
Span adjustment with a full or empty container (with/without pressure)
Integration/dampening time
Reset to manufacturers defaults
5.2 Key Functions
If the zero point or span setting are adjusted under pressure to a value out-
side of the sensors nominal pressure range, an error signal occurs. This
error signal is caused by a current surge of 3.6 mA or 21mA that lasts for 5
seconds or more. No values are stored when an error signal occurs.
The keypad becomes inactive if not used for 10 minutes. All settings will
default to previously stored values. Only settings that have been confirmed
with the "OK" function are stored.
Function 1 Function 2
When keypad is
active, enters span
adjustment mode
Action: upward,
increase value
When keypad is
active, enters zero
adjustment mode
Action: downward,
decrease value
Exit key or pro-
gramming mode
Activate keypad
(Press and hold
for 2 sec.)
Verification (store)
When keypad isactive, enters Integra-tion time/dampening mode(push simultaneously
for 2 sec.)
When keypad is
active, resets to
default (push
simultaneously for
2 sec.)
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(80 ) 64 - 0606 Fax (770) 277 - 2641 E-mail: tronic@wika.com http://www.wika.com16
5.3 Calibration with Pressure
5.3.1 Zero Point Calibration
5.3.2 Span Calibration
Calibration of the measurement range (span).
Determine if the pressure to be used as the zero point (P 0 %), is present
at the transmitter diaphragm before calibration.
Action Display of Ammeter
Press and hold the "esc" and "ok" keys for 2 sec-onds to enter programming mode
Ammeter will flash to 20mA to confirm thatthe programming mode has been entered
Press the "zero" key to enter calibration mode Ammeter will flash to 20mA to confirm thatthe calibration mode has been entered
Adjust pressure at pressure port to desired zeropoint
mA value will change as pressure isadjusted
Once desired zero pressure is present at pres-sure port, press "ok" to accept
Display will flash to 20mA to confirmchange, then the ammeter should display4mA.
Pressing "ok" automatically exits the program-ming mode
Ensure that the pressure to be used as the span end-point (P 100 %) is
present at the transmitter diaphragm.
Action Display of Ammeter
Press and hold the "esc" and "ok" keys for 2 sec-onds to enter programming mode
Ammeter will flash to 20mA to confirm thatthe programming mode has been entered
Press the "span" key to enter calibration mode Ammeter will flash to 20mA to confirm thatthe calibration mode has been entered
Adjust pressure at pressure port to desired full
span pressure
mA value will change as pressure is
adjusted
Once desired full span pressure is present atpressure port, press "ok" to accept
Display will flash to 20mA to confirmchange, then the ammeter should display20mA.
Pressing "ok" automatically exits the program-ming mode
A change in the zero point has no effect on the calibrated span. A change
in the span setting has no effect on the zero point. The zero point and span
end-point must fall within the sensors nominal pressure range. Setting the
spans peak point outside the nominal range of the sensor will reduce thespan accordingly.
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5.4 Calibration without Pressure
Determine the current reference values for the zero point and the span to be entered
in the transmitter before calibration. This is done as follows:
5.4.1 Zero Point Calibration Determine the hydrostatic pressure of the liquids surface that meets the zero point.
Adjust this pressure in proportion to the sensors nominal pressure range.
Multiply this proportion by 16 mA and add 4 mA to the result.
This produces the calculated current (value Icalc), which is entered in the transmitter
and used to program the zero point (0%).
Example:
A pressure transducer with 0 - 250" WC (nominal pressure) needs to be pro-
grammed.The liquids surface (with a density of 1) is 2 feet above the diaphragm at
the zero point producing a pressure of 24" WC.
This means that the devices current value must be set to 5.54 mA when performing
a dry (empty) calibration.
Action Display of Ammeter
Calculate the mA reading that corresponds to the desired zero pressure using the
method described above
Press and hold the "esc" and "ok" keys for
2 seconds to enter programming mode
Ammeter will flash to 20mA to confirm
that the programming mode has been
entered
Press the "zero" key to enter calibration
mode
Ammeter will flash to 20mA to confirm
that the calibration mode has been
entered
Use arrow keys to adjust mA reading to
precalculated value for zero point pres-
sure
mA value will change as arrow keys
are pressed
Once precalculated mA reading is dis-
played by ammeter, press "ok" to accept
Display will flash to 20mA to confirm
change, then the ammeter should dis-
play 4mA.
Pressing "ok" automatically exits the pro-
gramming mode
IcalcZero point pressure (0%) 24" WC
Sensors nominal pressure 250" WC------------------------------------------------------------------------------------------------ 16 mA 4 mA+ 5.54 mA= =
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5.4.2 Span Calibration
Determine the hydrostatic pressure of the liquids surface, which corresponds to the
span end-point.
Calculate the difference of the pressure value between span end-point and zero
point and divide this difference by the nominal pressure range of the sensor.
Multiply this proportion by 16 mA and add 4 mA to the result.
This produces the calculated current (value Icalc), which is entered in the transmitter
and used to program the span end-point (100%).
The measurement range between zero point and span end-point will be stored as
span.
Example:
A pressure transducer with 0 - 250" WC (nominal pressure) is to be programmed. The
liquids surface (with a density of 1) is 2 feet above the diaphragm at the zero point.
The maximum (span end-point) should be 18 feet.
This means that the output must be set to 16.24 mA during programming.
Action Display of Ammeter
Calculate the mA reading that corresponds to the desired zero pressure using the methoddescribed above
Press and hold the "esc" and "ok" keys for 2 sec-
onds to enter programming mode
Ammeter will flash to 20mA to confirm that
the programming mode has been entered
Press the "span" key to enter calibration mode Ammeter will flash to 20mA to confirm thatthe calibration mode has been entered
Use arrow keys to adjust mA reading to precal-culated value for full span pressure
mA value should change as arrow keys arepressed
Once precalculated mA reading is displayed byammeter, press "ok" to accept
Display will flash to 20mA to confirmchange, then the ammeter should display20mA.
Pressing "ok" automatically exits the program-ming mode
A change in the zero point has no effect on the adjusted span.
However, if the span end-point is higher than the peak value of the
sensors nominal pressure range, then the span end-point is fixed at
this peak value and the span is reduced accordingly.
A change in the span setting has no effect on the zero point. The zero
point and span end-point must fall within the sensors nominal pres-
sure range.
A test / correction of the zero point is suggested after adjusting the
span in order to maintain optimum accuracy.
Icalc
pressure difference (span) (216" WC -25" WC)
Sensors nominal pressure 250" WC--------------------------------------------------------------------------------------------------------------------------- 16 mA 4 mA+ 16.24 m= =
Important
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5.5 Integration Time (Dampening) Adjustment
The following integration time settings can be used: 0, 1, 5, 20 and 40 s.
The sensors measured values can then be averaged using the adjusted integration
time.
5.6 Reset to Default
All default data settings are restored by first activating the keypad, then simultaneous-
ly pressing the "zero", "esc" and the "ok" buttons for 2 seconds (see Para. 6.4 for de-fault data).
Action Display of Ammeter
Press and hold the "esc" and "ok" keys for
2 seconds to enter programming mode
Ammeter will flash to 20mA to confirm
that the programming mode has been
entered
Press and hold the "zero" and "span" keys
to enter integration time adjustment mode
Ammeter will flash to 20mA to confirm
that the adjustment mode has been
entered
Press "zero" to set integration time to 0 s.If a different time is desired, press the up
arrow key once for 1 s, twice for 5 s, three
times for 20 s, and four times for 40 s.
Ammeter will flash to 20mA to confirmeach key stroke and then return the
mA reading for current pressure
Once desired integration time is selected,
press the "ok" key to save and exit pro
gramming mode
Display will flash to 20mA to confirm
change, then the ammeter should dis-
play mA based on current pressure
Special calibrated measurement ranges can be factory pre-set
i. e. 15PSI on a 25PSI transmitter. Resetting to default will change the
sensor back to its nominal range (i. e. 25PSI). The factory pre-setting is
lost.
Important
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6.2 Key Functions
6.3 The Programming Mode
The device can be programmed before or after installation.The keypad is activated and the device can be programmed by simultaneously press-
ing the "esc" and "ok" keys (for 2 sec.). This method is used to access the main
menus. Each main menu has one or more sub-menus and each sub-menu, may have
its own sub-menus.
Button Functions
Main Menu Sub-menu Edit Functions
back to the previousmenu option
back to the previousmenu option
increase value
forward to next menu
option
forward to next menu
option
decrease value
back to value display
without saving
back to main menu
without saving
back to the sub-menu
without saving
to the sub-menu to the edit functions save value
activate keypad (push simultaneously; 2 s)
The keypad becomes inactive if not used for 10 minutes. All settings will
default to previously stored values. Only settings that have been confirmed
with the "ok" function are stored.
A change in the starting measurement (zero point) has no effect on the
measurement span. Likewise, a change in the span has no effect on thestarting measurement.
An error signal occurs when the zero point or span settings fall outside of
the sensors nominal pressure range during calibration with pressure.
Nothing is saved.
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6.4 Default Data (factory setting)
Function Defaults
Display Unit of measurement
(Line 1)Line 2
Line 3
Pressure display (in bar)
Temperature display (in C)
Sensors nominal pressure range (in bar)
Calibration zero 4 mA = nom. pressure range start
span 20 mA = nom. pressure range end
Output Damping
Inversion
Fault
Limits
Current-offset
0 s
no
21 mA (upscale)
3.8 to 20.5 mA
0 mA
Service password no active password
Service mounting correction not activated
Language English
Evaluation linear
density
yes
1 g/cm3
Special calibrated measurement ranges can be factory pre-set
i. e. 15 PSI on a 25 PSI transmitter. Resetting to default will set the sen-
sor back to its nominal range (i. e. 25 PSI). The factory pre-setting islost.
Important
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6.5.1 Main Menu: Display (changing measured value units, changing line 2 and line 3)
Changing units on the measured value display
(mbar, bar, PSI, at, mA, %, mm, m, inch, feet, Pa, hPa, mmWS, mWS, mmHg
The density of a medium must be entered to calculate the correct fill-level
when displaying or adjusting the level in height units (e.g. mm, m, feet,
inch)(see 6.5.4).
Action Display will read
Press and hold the "esc" and "ok" keys for
2 seconds to enter programming mode
"Display Options"
Press "ok" to activate display menu "Unit Displayed"
Press "ok" to begin selecting units "Unit"
Use up and down arrow keys to select
desired units
Displays selected units as the arrow
keys are pressed
Once desired units are on the screen, press "ok" to select and save, then press the
esc" key until exiting the programming mode
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Changing additional information on display lines 2 and 3
(measure %, blank, min value, max value, temperature, current[mA], P-range)
Action Display will read
Press and hold the "esc" and "ok" keys for
2 seconds to enter programming mode
"Display Options"
Press "ok" to activate display menu "Unit Displayed"
Press down arrow once to change Row 2
or twice to change Row 3
"Display Row 2" or
"Display Row 3"
Press "ok" to begin selecting desired infor-
mation
Displays selected information as
arrow keys are pressed
Once desired information is displayed, press "ok" to select and save, then press
"esc" until exiting programming mode. Please see below if selecting min or max
value or temperature
If selecting temperature, when "ok" is pressed, you are given the choice between
Celsius or Farenheit temperature scales. Use the up and down arrow keys to
select desired scale, then press "ok" to select and save. Finish by pressing "esc"until exiting programming mode.
If selecting min or max value, when "ok" is pressed, you are given the choice
between measurement (pressure values) or temperature. Use the up and down
arrow keys to select desired information, then press "ok" to select and save. Finish
by pressing "esc" until exiting programming mode.
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6.5.2 Main Menu: Calibration of zero and span (with / without pressure)
Calibration of zero with pressure
Calibration of zero without pressure
Action Display will read
Press and hold the "esc" and "ok" keys for
2 seconds to enter programming mode
"Display Options"
Press the down arrow key "Calibrate Range"
Press "ok" "Calibrate With Pressure"
Press "ok" "Calibrate Set Zero"
Adjust pressure at pressure port to prede-
termined zero point
As the pressure changes the display
will give current pressure reading
Once desired zero pressure is at pressure port, press "ok" to select and save, then
press the"esc" key until exiting the programming mode
Action Display will readPress and hold the "esc" and "ok" keys for
2 seconds to enter programming mode
"Display Options"
Press the down arrow key "Calibrate Range"
Press "ok" "Calibrate With Pressure"
Press the down arrow key "Calibrate Without Pressure"
Press "ok" "Calibrate Def. Zero"
Press "ok" "Def. Zero 4mA = ?"
Use the up and down arrow keys to adjust
the mA signal to the precalculated value
that corresponds to desired zero pressure
The mA value will vary as the up and
down arrow keys are pressed
Once desired mA signal for zero pressure is set, press "ok" to select and save,
then press the"esc" key until exiting the programming mode
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Calibration of span with pressure
Calibration of span without pressure
Action Display will read
Press and hold the "esc" and "ok" keys for
2 seconds to enter programming mode
"Display Options"
Press the down arrow key "Calibrate Range"
Press "ok" "Calibrate With Pressure"
Press "ok" "Calibrate Set Zero"
Press the down arrow key "Calibrate Set Span"
Adjust pressure at pressure port to prede-
termined full span pressure
As the pressure changes the display
will give current pressure reading
Once desired full span pressure is at pressure port, press "ok" to select and save,
then press the"esc" key until exiting the programming mode
Action Display will read
Press and hold the "esc" and "ok" keys for 2
seconds to enter programming mode
"Display Options"
Press the down arrow key "Calibrate Range"
Press "ok" "Calibrate With Pressure"
Press the down arrow key "Calibrate Without Pressure"
Press "ok" "Calibrate Def. Zero"
Press down arrow key "Calibrate Def. Span"
Press "ok" "Def. Span 20mA = ?"
Use the up and down arrow keys to adjust
the mA signal to the precalculated value that
corresponds to desired full span pressure
The mA value will vary as the up
and down arrow keys are pressed
Once desired mA signal for full span pressure is set, press "ok" to select and save,then press the esc" key until exiting the programming mode
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A single pressure value is set for the zero point or the span end-point
within the sensors nominal pressure range, and assigned to the associ-
ated mA signal when making adjustments with existing pressure. An er-
ror signal occurs when the existing pressure lies outside of the sensors
nominal pressure range. The value is not saved in this case.
A mounting correction should be performed before or after making an
adjustment without pressure (dry adjustment) (see 6.5.4). The sensor
must therefore be placed in the reference position for the measurement
(installation site) without pressure on the diaphragm.
A mounting correction is unnecessary when making an adjustment with
pressure (wet adjustment). Otherwise, the mounting correction must be
performed before saving the zero point and span end- point.
A test / correction of the zero point is suggested after adjusting the
span in order to maintain optimum accuracy.
Important
Important
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6.5.3 Main Menu: Output (Integration time, Inversion, Alarm, Limits, Current offset)
Integration time / signal dampening
Output Inversion(Inverted 20-4mA, reverted 4-20mA)
Action Display will read
Press and hold the "esc" and "ok" keys for
2 seconds to enter programming mode
"Display Options"
Press the down arrow key "Calibrate Range"
Press the down arrow key "Output Definition"
Press "ok" "Output Damping"
Press "ok" "Damping D = 0 sec."
Press the up or down arrow keys to select
desired signal damping time
Damping time will change as arrow
keys are pressed
Once desired mA signal for full span pressure is set, press "ok" to select and save,
then press the"esc" key until exiting the programming mode
Action Display will read
Press and hold the "esc" and "ok" keys for
2 seconds to enter programming mode
"Display Options"
Press the down arrow key "Calibrate Range"
Press the down arrow key "Output Definition"
Press "ok" "Output Damping"
Press the down arrow key "Output Inversion"
Press "ok" to invert the signal to 20-4mA,
then press "esc" until exiting the program-
ming mode
"Output inversion >OFF"
If the output signal is already inverted, then when entering the mode, the display
will initially read "Output Inversion >OFF". To revert the signal, press "ok" then
"esc" until exiting the programming mode
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Output Alarm/Error(Warns if pressure is outside of sensors nominal range)
Action Display will read
Press and hold the "esc" and "ok" keys fo
2 seconds to enter programming mode
"Display Options"
Press the down arrow key "Calibrate Range"
Press the down arrow key "Output Definition"
Press "ok" "Output Damping"
Press the down arrow key "Output Inversion"
Press the down arrow key "Output Alarm/Error"
Press "ok" "Alarm I=3.6 mA"
Press "ok" to activate, this alarm activates
when the current drops to 3.6 mA
"Output Alarm/Error"
Press "ok" "Alarm I=3.6 mA"
Press down arrow key "Alarm I=21 mA"
Press "ok" to activate, this alarm activates
when the current reaches 21 mA
"Output Alarm/Error"
Press "esc" until exiting programming mode
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Output Limits(Sets the upper and lower limits for the output signal)
Action Display will read
Press and hold the "esc" and "ok" keys for
2 seconds to enter programming mode
"Display Options"
Press the down arrow key "Calibrate Range"
Press the down arrow key "Output Definition"
Press "ok" "Output Damping"
Press the down arrow key "Output Inversion"
Press the down arrow key "Output Alarm/Error"
Press the down arrow key "Output Limits"
Press "ok" "Limits 3.8 - 20.5 mA"
Use the up and down arrow keys to select the limit to be either 3.8-20.5 mA or 4-20
mA fixed
Once limit desired is displayed, press "ok" to accept, then press "esc" until exitingprogramming mode
Please note: When the limit is set to 3.8-20.5 mA, the current will hold at the limit
point when the sensing range is exceeded.
Please note: When the limit is set to 4-20mA, the alarm condition will go into effect
when the limits are reached. When this happens it is necessary to restart the
device by using reset or shutting down power to the unit.
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Output Current Offset
Action Display will read
Press and hold the "esc" and "ok" keys for
2 seconds to enter programming mode
"Display Options"
Press the down arrow key "Calibrate Range"
Press the down arrow key "Output Definition"
Press "ok" "Output Damping"
Press the down arrow key "Output Inversion"
Press the down arrow key "Output Alarm/Error"
Press the down arrow key "Output Limits"
Press the down arrow key "Output Current Offset"
Press "ok" "I-Offset I=0.0000"
Use the up and down arrow keys to set the
zero offset to desired level
The value for the mA offset should
change as arrow keys are pressed
Once desired offset is displayed, press "ok" to accept and save, then press "esc"
until exiting the programming mode
Please note: The output current is combined with an assigned offset, which can
have a maximum of + 0.8 mA.
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6.5.4 Main Menu: Evaluation (Reference table, Linear activation, Media density)
Reference Table/Tank Linearization
Action Display will read
Press and hold the "esc" and "ok" keys for
2 seconds to enter programming mode
"Display Options"
Press the down arrow key "Calibrate Range"
Press the down arrow key "Output Definition"
Press the down arrow key "Evaluation Functions"
Press "ok" "Evaluation Ref. Table"
Press "ok" "Reference Point Insert"
The next steps explain how to add level and volume pairs for tank linearization.
The UniTrans allow for up to 32 reference points. The value pairs for 0% and
100% are fixed. Repeat these steps for each point.
Press "ok" Insert h[%] = ?
Use the up and down arrow keys to adjust
the level as a percentage of total span
The percent of level changes as
arrow keys are pressed
Press "ok" Insert v[%] = ?
Use the up and down arrow keys to adjust
the volume as a percentage of total volume
The percentage of volume changes
as arrow keys are pressed
Press "ok" to accept value pair and save "Reference Point Insert"
Press "ok" to enter another pair or press
down to continue
If down key is pressed, display will
read "Reference Point Delete"
Press "ok" to delete a reference point or
press down key to continue
If down key is pressed, display will
read "Table Edit"
Press "ok" to edit table, or press down key
to continue
If down key is pressed, display will
read "Table Activate?"
Press "ok" "Table Active"
Press "esc" key until exiting the programming mode
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Enter height values, which are each assigned a volumetric value of measure for tank
linearization. The linearization and the assignment of the 4 - 20 mA output signal are
converted into tank volumes using this value pair.
Example:
For the tank to the left with a UniTrans mounted on the bottom
left corner, the volume does not have a direct relationship with
the level that the UniTrans is reading. By setting one of the
lines of the display to read measure %, height/volume pairs
can be programmed to display how full the tank is as a percent-
age of total volume. At 25" WC, the height/volume pair would
be calculated as follows:
For the height value, 25" WC is 25% of the full span so h[%]=25
For the volume value, the volume at 25" must be calculated. At 25" WC the volume in the abovetank is 218,750 in3, the total volume is 500,000 in3. So at 25" WC the tank is 43.75% full. Thevolume part of the height/volume pair is v[%]=43.75.
The more points programmed into the Unitrans (up to 32) the more accurate the measurement as
a percentage of total volume will be.
Linear Evaluation(linear correlation between input and output is set)
Please check the following if "Wrong Entry" appears in the Evaluation
menu:
whether or not more than 32 value pairs are entered in the table for tank
linearization (please note: P 0 and P 31 are fixed at 0% and 100% re-
spectively)
whether or not an height value is already entered
Please enter correct values.
Action Display will read
Press and hold the "esc" and "ok" keys for 2 sec-onds to enter programming mode
"Display Options"
Press the down arrow key "Calibrate Range"
Press the down arrow key "Output Definition"
Press the down arrow key "Evaluation Functions"
Press "ok" "Evaluation Ref. Table"
Press down key "Evaluation Linear"
Press "ok" "Linear Activate ?"
Press "ok" to select and save, then press "esc" until exiting the programming mode
100"
100"
100"
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Adjusting for media density/or specific gravity
Example:
Level 100 %: 40 feet
Specific gravity: 1.0
Specific gravity correction: 0.9
Span end point:
The span (end-point) must be re-calibrated (with or without pressure) to 44.44 feet, in
order to prevent a 40 foot tank from being overfilled.
Action Display will read
Press and hold the "esc" and "ok" keys for
2 seconds to enter programming mode
"Display Options"
Press the down arrow key "Calibrate Range"
Press the down arrow key "Output Definition"
Press the down arrow key "Evaluation Functions"
Press "ok" "Evaluation Ref. Table"
Press down key "Evaluation Linear"
Press down key "Evaluation Density"
Press "ok" "d/[g/m^3] d=?"
Use the up and down arrow keys to enter
the density of the media
The value for the density will change
as the arrow keys are pressed
Once the desired density is displayed press "ok" to select and save, then press"esc" until exiting the programming mode
A change or correction in the density causes a change in the span end-
points unit of measure (mm, m, inch, feet). The span end-point must be
re-calibrated when changing the medium to be measured (due to a
change in density).
40 ft 1 g/c
3
0.9 g/cm3------------------------------------ 44.44 feet=
Important
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Universal Transmitter UniTransOperation of Devices with Display
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(80 ) 645 - 0606 Fax (770) 277 - 2641 E-mail: tronic@wika.com h ttp://www.wika.com 37
6.5.6 Main Menu: Service (Mounting Correction, Loop Test, Timer, Reset, Password)
Mounting Correction(automatically adjust for horizontal or vertical mounting)
Loop Test(test to assure proper connection of the UniTrans)
Action Display will read
Press and hold the "esc" and "ok" keys for 2 sec-onds to enter programming mode
"Display Options"
Press the down arrow key "Calibrate Range"
Press the down arrow key "Output Definition"
Press the down arrow key "Evaluation Functions"
Press the down arrow key "Language Options"
Press the down arrow key "Service Functions"
Press "ok" "Mounting Correction"
Once the UniTrans is mounted, make sure no pressure is applied to the sensor and press "ok",the UniTrans will automatically correct for its mounting position, then press "esc" until exitingthe programming mode.
Action Display will read
Press and hold the "esc" and "ok" keys for 2 sec-onds to enter programming mode
"Display Options"
Press the down arrow key "Calibrate Range"
Press the down arrow key "Output Definition"
Press the down arrow key "Evaluation Functions"
Press the down arrow key "Language Options"
Press the down arrow key "Service Functions"
Press "ok" "Mounting Correction"
Press down arrow key "Service Loop Test"
Press "ok" "Circuit Test I = ? mA"
Use the up and down arrow keys to set desiredmA value for loop test
Displayed mA value will change as arrowkeys are pressed
The UniTrans will continue to output the set mA signal until the "esc" key is pressed, once thisis done, continue pressing "esc" until exiting the programming mode
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(80 ) 64 - 0606 Fax (770) 277 - 2641 E-mail: tronic@wika.com http://www.wika.com38
Timer(total hours in operation, hours since last calibration and reset and sensor operation)
Action Display will read
Press and hold the "esc" and "ok" keys for 2 sec-onds to enter programming mode
"Display Options"
Press the down arrow key "Calibrate Range"
Press the down arrow key "Output Definition"
Press the down arrow key "Evaluation Functions"
Press the down arrow key "Language Options"
Press the down arrow key "Service Functions"
Press "ok" "Mounting Correction"
Press down arrow key "Service Loop Test"
Press the down arrow key "Service Device Data"
Press the down arrow key "Service Timer"
Press "ok" "hrs-Total"
This displays total operating hours
Press the down arrow key "hrs- Calib"This displays number of hours since lastcalibration
Press the down arrow key "hrs- Reset"This displays number of hours since lastreset
Press the down arrow key "hrs- Sensor"This displays number of hours the sensorhas been in operation
After viewing the information desired, press "esc" until exiting programming mode.
The service timer is for information purposes only, no functions can be resetthrough this module.
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Reset(resets timer, min/max values, alarm, and resets all to factory settings)
Action Display
Press and hold the "esc" and "ok" keys for 2seconds to enter programming mode
"Display Options"
Press the down arrow key "Calibrate Range"
Press the down arrow key "Output Definition"
Press the down arrow key "Evaluation Functions"
Press the down arrow key "Language Options"
Press the down arrow key "Service Functions"
Press "ok" "Mounting Correction"
Press down arrow key "Service Loop Test"
Press the down arrow key "Service Device Data"
Press the down arrow key "Service Timer"
Press the down arrow key "Service Reset"
Press "ok" "Reset Timer"
Press "ok" to reset number of hours since lastreset, or press the down arrow key to continue
If the down arrow key is pressed display willread "Reset Mix/Max Val"
Press "ok" to reset Min and Max values, orpress the down arrow key to continue
If the down arrow key is pressed display willread "Reset All"
Press "ok" to reset all or press the down arrowkey to continue
"Reset Alarm"
Press "ok" to reset alarm, reset the alarm after exceeding the 4-20 mA limit (see Output Limitsin section 6.5.3). Press "esc" until exiting from programming mode.
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(80 ) 64 - 0606 Fax (770) 277 - 2641 E-mail: tronic@wika.com http://www.wika.com40
Password(locks keypad so settings can not be changed)
Action Display
Press and hold the "esc" and "ok" keys for 2seconds to enter programming mode
"Display Options"
Press the down arrow key "Calibrate Range"
Press the down arrow key "Output Definition"
Press the down arrow key "Evaluation Functions"
Press the down arrow key "Language Options"
Press the down arrow key "Service Functions"
Press "ok" "Mounting Correction"
Press down arrow key "Service Loop Test"
Press the down arrow key "Service Device Data"
Press the down arrow key "Service Timer"
Press the down arrow key "Service Reset"
Press the down arrow key "Service Password"
Press "ok" "Password Activate?"
Press "ok" "Password ?"
Use the up and down arrow keys to select up toa four digit number as the password
The value for the password will change asthe arrow keys are pressed
Once desired password number is displayed, press "ok" to select and save, then press "esc"until exiting the programming mode
Please note that when the password is active the calibration and evaluation ranges can not beaccessed. In order to access these parameters, the password must be de-activated. To de-activate the password follow the step outlined above.
If password is lost please contact the factory
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Universal Transmitter UniTransDiagnostics and Servic
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7 Diagnostics and Service
The following error messages can appear on devices with displays (see also para.
2.1.3):
8 Disposal
If the fault cannot be corrected, the device should be taken out of operation
and stored to prevent re-installation.
Repairs should only be performed by the manufacturer. All other repairs or
alterations are unauthorized.
Error Code Error Error Correction Measures
E00 ROM-error Return device to manufacturer
E01 Power supply error Test power supply
E03 EEPROM communications error Disconnect and reconnect power
supply
E04 Sensors temperature range was
exceeded
Return sensors temperature to
specified limits
E06 Sensor recognition Disconnect and reconnect power
supply
E07 General communications error
between the sensor and the con-
trol interface unit
Check the connection between
the sensor and the control inter-
face unit
Please observe local guidlines and regulations when disposing of
devices that are no longer serviceable.
Please turn any recycleable components in to the appropriate local orga-
nizations.
A t t e n t i o n
A t t e n t i o n
Important
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9 Appendix
9.1 Dimension Diagrams
G 1/2B
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9.2 Warranty Conditions
The UniTrans has a 12 month warranty from the date of purchase.
9.3 Glossary
Adjustment Allocation of the signal output range (4 - 20 mA) to the desired
pressure measurement range or level measurement range.
Integration Also dampening: timely communication of the measurement
signal; rise time of the current output signal after a signal surge
Inversion Conversion of the output signal from 4 - 20 mA to 20 - 4 mA
Nom. pressure range The operating pressure range for which the sensor was de-
signed
Zero point Start of the pressure measurement range
Parameterization Also configuration: programming of the relevant parameters
and the pressure measurement range specific to the application
and measurement location.
Span The programmed pressure measurement range
Span end point The highest pressure value of the programmed measurement
span (end-point of the span)
Tank linearization Determination of approximate volume/pressure ratio values
with non-linear correlations based on varying container designs
For example, a non-linear correlation exists between the fill lev-
el and the volume in spherical containers. During linearization,
the non-linear volume is assigned the 4 - 20 mA output signal
from a table of values (proximity process by means of up to 32
support points).
Defaults The sensor parameters are pre-programmed by the manufac-
turer
9.4 Units of Pressure Measurement
1 atm (atmospheres) = 760 mm Hg = 760 Torr
= 1.033 kp/cm2 = 0.1013 MPa
1 Torr = 133.3 Pa
1 kp/mm2 = 9.81 N/mm2 = 9.81 MPa
1 bar = 0.1 MPa
1 mbar = 1 hPa (Hektopascal)
1 psi (pound per square inch) = 6.895 10
3
Pa1 bar =33.5 feet of water
Notes:
Repairs may only be performed by the manufacturer. All other repairs and
device alterations are unauthorized and will void the warranty.
A t t e n t i o n
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