Tetra Pak TPT12– complete system for precision measurement of temperature

The TPT12 is a complete system for measuring . It has been designed to provide best possible measurement using the smallest possible size.

The transmitter com-bined with a Pt100 sensor, delivers a standardized 4-20 mA signal to PLC or control system.

System precision ≤ ± 0.25 °CCompact designOperating ambient temperature -30 to +85 °CLong-term stability down to ± 0.03 °C

Fault monitoring with NAMUR NE43 LimitsAll programming via two-wire connectionConnects using M12 connectorDigital communication capability is standard

Unique performance(typical application)

Typical system precision ± 0.2 °C, in all combinations of temperatures.

Dimensions

Operation ambienttemperature:-20 to +80°C

Process flow:-20 to +200°C

L=

General technical data - transmitter

Sensor: Pt100Ambient temperature:

Operation -30 to + 85 °CStorage -50 to + 85 °C

N.B. max 80 °C for M12-connector.Power consumption: < 0.8 W (30 V/25 mA)Output current: Nominal 4-20 mASupply voltage: Min 10 V, max 30 V (UDC)Input resolution: 23 bitsOutput resolution: 16 bitsInterference suppression: > 90 dB at 50/60 Hz Temperature drift:

Measuring range ≤ 15 ppm/°C, typical < 5 ppm/°CDrift in reference ≤ 25 ppm/°C, typical < 15 ppm/°CZero drift ≤ 0.002 °C/°C (4-wires) or ≤ 0.008 °C/°C (2-/3-wires)

Shifted measuring range: ≤ (zero-value/measuring range) x 0.002 %FS/°CTemperature drift data above is based on a steady state change of tempera-tures of the enclosure.Load resistance: RL≤ (UDC- 9 V)/23 kohmsNormal range: 4 - 20 mA; 20 - 4 mA optionalRange lower limit: ≤ 3.8 mARange upper limit: ≥ 20.5 mAAlarm limit:

Lower 3.5 mA, (NAMUR NE43)Upper 21.5 mA (NAMUR NE43)

Current limit: < 25 mA without processor helpStart-up time: < 1.5 seconds from powerless stateInput range: ±1.25 V (24 bits)Resolution/bit: < 0.15 μVSensor excitation current: < 0.37 mAMax allowed serial resistance:

3 wires 30 ohms/wire4 wires 100 ohms/wire

Sampling rate: approx. 7 samples/sec

Accuracy and stability Transducer: For Pt100/RTD-sensorsReference conditions: +23 °C ± 5 ºC, 24 V ± 5 VSupply voltage dependence: (10-30 V) UDC ≤ 0.003 % FSMeasurement accuracy: ± 0.02 ºC or 0.01 % of rangeMeasuring range: -200 to +850 ºCMin range: ≥ 10 ºCLinearity error: ≤ 0.002 ºCStability: ≤ 0.03 ºC per year or 0.02 % of measuring range per year at reference conditions

Internal monitoring - fault indicationsThe following faults can be programmed to change the output signal to either 3.5 mA or 21.5 mA according to NAMUR NE43:

1. Sensor circuit is open (or abnormally large Pt100-resistance): 21,5 mA2. Sensor temperature falls below (3,5 mA) or exceeds the measuring range (21,5 mA)3. Verification of supply voltage

ESD- and EMC-approvalsThe transmitter conforms to requirements of the EMC directive 2004/108/EC and later amendments EN 61326-1. (TP KA2791-30)Deviation: ≤ 0.2% fs. The Low Voltage directive 2006/95/EC and later amendments EN 61010-1.

Standard models for TPT1290510-5632 Temp.meter TPT12 4-20mA 0-150 ° C

90510-5633 Temp.meter TPT12 4-20mA 0-160 ° C

90510-5634 Temp.meter TPT12 4-20mA 0-350 ° F

90510-5635 Temp.meter TPT12 4-20mA 0-200 ° C

90510-9096 Temp.meter TPT12 4-20mA 0-160 L=25

90510-9097 Temp.meter TPT12 4-20mA 0-160 L=15

Mechanical partsSensor material: 1.4404Sensor material: 1.4547 (SMO) on 90510-9096 and 90510-9097Connector: M12, material PolyamidDegree of protection: IP67/IP69K (mating conn. Lumberg PRKT/ PRKWT)

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TPT12 GENERAL TECHNICAL DATA

DesignPt100 sensor element mounted in a conical protective sheath which in turn can be screwed into a sleeve or into an external thermo well. Sleeve and coni-cal sheath make a hygienic seal. The seal is EHEDG-approved.

Example of useTemperature measurements in tubing systems with hygienic demands e. g. in the food industry.

Max temperatureMeasuring part: 200 °C

Sensor material1.4404 or 1.4547

Surface finishRa ≤ 0.8 is standard. By electro polishing Ra ≤ 0.4 can be offered.

Response timeTime constant, τ0,90 ≤ 2,5 s in water 0.4 m/s according to IEC 60751.

The unique sensorThe basis for the TPT12 is the well-proven food product sensor. The sensor mounted in an appropriate sleeve is EHEDG-approved. The risk of bacteria growth is minimal after repeated use and cleaning.

Media pressureMedia pressure max 120 bar. Calculation made by Notified Body according to prEN13445.

Installation to mediaG1/8” to mount into sleeve.

SleeveSleeve for welding with selected standard radia, R: Flat, R = 19 mm or R = 14 mm.

Disposal of product and packingAccording to national laws or by returning to Pentronic.

RoHSSensors with cable conform to the demands of the RoHS-rules.