Post on 26-Apr-2020
TG-F285-1E JAN. 2007
OUTLINE
M-900 series MICRO FLOWMETER is a metal tubevariable area flowmeter for small flow measurement.All metallic construction covers even high temperatureand high pressure applications.Thanks to compact design, M-900 is suitable forassembling onto various devices. It also covers smallsized industrial processes.M-900 series MICRO FLOWMETER has been usedfor nuclear power plants for long time and HPGSLcertified version is also available.In addition to local indication type, various outputversions including flameproof electric output are readyto meet field requirements.
FEATURES
1. Compact designSmall and light design offers easy installation ontopanels as well as process pipings.
2. High sensitivityLight designed indication mechanism offers smoothfollow to float movement.
3. Anti-corrosive capabilityBesides standard material of stainless steel, specialmetallic material of Hastelloy, Titanium and othersare available to cover very corrosive fluids.
4. Easy observation of indicationLiner scaling and wide graduation plate.
5. Supporting devicesFlow control needle valve, constant flow valve andother supporting devices are available.
For assembling onto devices, test plants and generalindustrial processes
M-900 seriesMICRO FLOWMETER
OPERATING PRINCIPLE
The flow path has a tapered part. A float in which amagnet is moulded is located in the tapered tube. Thefluid is introduced from the bottom end of flowmeterand goes through the tube upward.Because of the differential pressure produced by thefloat and tapered tube, the float is pushed upward andstops at a position where the weight of float and thedifferential pressure balance. Thus, the position of floatcorresponds to the flow rate. The moulded magnet inthe float attracts the pointer, and the pointer indicatesthe flow rate on the scale plate.The inside of the tube and indication mechanism aretotally isolated by magnetic coupling.
M-900 MICRO FLOWMETER
2 TOKYO KEISO CO., LTD. TG-F285-1E
M-900 Local Indication version
STANDARD VERSION
OUTLINE
M-900 is a Metal tube micro flowmeter for local flow indication. It indi-
cates flow rate of liquids and gases by scale plate and pointer.
Operation is purely mechanical and no utilities, i. e. electric or pneu-
matic supply is required.
STANDARD SPECIFICATION
Measuring object Liquids and Gases
Not suitable for steam. it is recommended to
use M-90 -D (With damper type) for low
pressure gas (Less than 0.29MPa)
Measuring range
TypeMeasurering range
Liquids 1 L/h Gases 2 L/h(nor)
Standard and H/LTemp. type
Min. 0 to 2Max.0 to 300
Min. 0 to 300Max.0 to 600
Min. 0 to 60Max.0 to 8500
Min. 0 to 8500Max.0 to 17000
Large flow type
* *
*1: Water, *2: Air at 0°C, 1atm
Viscosity limit for liquid flow measurement
upto 20L/h
20 to 50L/h
More than 50L/h
Full scale Viscosity limit (mPa・s)
5
10
20
Press. Range Std. upto 0.98MPa
Opt. upto 19.6MPa
(Subject to flange rating for flange connection
version)
Temp. Range Std. 0 to 149°C
H/L Temp. version –20 to –1°C, 150 to 200°C
Indication accuracy ±3% F.S.
(±5% F.S. for versions with full scale less than
10L/h (300L/h (nor) for gases))
Range ability 10 : 1
(10 : 2 for versions with full scale less than
5L/ h (150L/h (nor) for gases)
Process connection
TypeType
Standard and H/LTemp. type
Large flow type
Std. Special
Rc 3/8
Rc 1/2
Rc 1/4, 1/210A, 15A, 20A, 25A, JIS10K
Rc 3/8, 3/415A, 20A, 25A, JIS10K
Material availabilty
Part name
Body
Tapered tube
Float
SUS304
SUS304
SUS304
Std. Available material
SUS316, SUS316L,Ti MA276 (Equiv. to Hastelloy C)
SUS316, SUS316L,Ti MA276 (Equiv. to Hastelloy C)
SUS316, SUS316L,Ti MA276 (Equiv. to Hastelloy C)
Paint Munsell 7.5BG4/1.5 (Indicator housing)
AMB. Temp. –30 to 80°C
MODEL CODE
Discription
Bottom to Top
Bottom to Top side
Bottom side to Top side
Bottom rear to Top rear
Not provided
Provided
Flow direction
Needle valve
DIMENSIONS (M-901 TYPE)
STANDARD, SCREW CONNECTION
Thread size
L (mm)
1/4
180
3/8
160
1/2
190
*Screw socket (s) provided for Rc 1/4 and Rc 1/2.
STANDARD, SCREW CONNECTION
M-900 MICRO FLOWMETER
TOKYO KEISO CO., LTD. 3TG-F285-1E
HIGH/LOW TEMP. VERSION, SCREW CONNECTION LARGE FLOW VERSION, SCREW CONECTION
Thread size
L (mm)
1/4
180
3/8
160
1/2
190
*Screw socket (s) provided for Rc 1/4 and Rc 1/2.
HIGH/LOW TEMP. VERSION, FLANGE CONNECTION LARGE FLOW VERSION, FLANGE CONNCTION
Thread size
L (mm)
3/8
230
1/2
265
3/4
245
LOW PRESSURE GAS VERSION, WITH LIQUID DAMPER (M-90 -D TYPE)
OUTLINE
M-90 -D is a version for measurement of low pressure gases.
It has a liquid damper mechanism to avoid vertical vibration of float
during operation.
STANDARD SPECIFICATION
Measuring object Gases with low pressure
(Less than 0.29MPa)
Measuring range
TypeMeasuring range
Gases *L/h (nor)
Standard type Min. 0 to 60Max.0 to 8500
Min. 0 to 8500Max.0 to 17000
Large flow type
*: Air, 0°C, 1atm
Press. Range Upto 2.94MPa
(Subject to flange rating for flange connection
version)
High and low temp. version is not available for M-90 -D.
Other specification is equal to that of standard version.
MODEL CODE
Description
Bottom side to Top side
Bottom side to Top
Bottom rear to Top rear
Not provided
Provided
Flow direction
Needle valve
DIMENSIONS (M-904-D TYPE)
STANDARD, SCREW CONNECTION
Thread size
Standard type
Large flow type
L
A
L
A
1/4
210
40
260
40
3/8
190
45
260
45
1/2
215
45
270
45
*Screw socket (s) provided for Rc 1/4 and Rc 1/2.
LARGE FLOW, FLANGE CONNECTION
M-900 MICRO FLOWMETER
4 TOKYO KEISO CO., LTD. TG-F285-1E
M-950 Alarm output version
OUTLINE
M-950 is a Metal tube micro flowmeter with reed swich alarm contact.
It addition to local flow indication by scale plate and pointer,
alarm contact output at set point is obtained.
STANDARD SPECIFICATION
Measuring object Liquids and Gases
Not suitable for steam. It is recommended to
use M-95 -D type (With damper type) for low
pressure gas (less than 0.29MPa)
Measuring range
TypeMeasuring range
Liquids *1 L/h Gases *2L/h (nor)
Standard type Min. 0 to 2Max.0 to 300
Min. 0 to 300Max.0 to 600
Min. 0 to 60Max.0 to 8500
Min. 0 to 8500Max.0 to 17000
Large flow type
*1: Water, *2: Air at 0°C, 1atm
Temp. Range 0 to 80°C
High and low temp. version is not available for M-95 .
Other specification is equal to that of standard version.
SPECIFICATION OF ALARM CONTACT
Type of contact Instantaneous contact, reed swich,
1 point high or low
Reset span Max. 30% F.S.
Alarm setting Adjustable in span
Contact capacity AC10VA (Resistance load), DC10W
Max. current 0.25 A
Max. voltage DC100V, AC125V
Insulation resistance 100MΩ or more (at DC500V)
Withstand voltage DC250V
Cable entry G1/2 thread
Specifiy type of contact (High or Low) and setting point for order.
MODEL CODE
Construction
Flow direction
Needle valve
Description
Watertight (Non-Ex)
Intrinsically safe*
Bottom to Top
Bottom to Top side
Bottom side to Top side
Not provided
Provided
*: IS relay unit to be installed separately.
DIMENSIONS (M-951 TYPE)
STANDARD, SCREW CONNECTION
Thread size
L (mm)
1/4
180
3/8
160
1/2
190
*Screw socket (s) provided for Rc 1/4 and Rc 1/2.
STANDARD, FLANGE CONNECTION
M-900 MICRO FLOWMETER
TOKYO KEISO CO., LTD. 5TG-F285-1E
M-910 Pneumatic output version
OUTLINE
M-910 is a Metel tube micro flowmeter with Pneumatic transmitter.
In addition to local flow indication by scale plate and pointer, pneumatic
output of 20 to 100kPa is obtained. Inlet and output pressure gauges
are provided for checking of operating condition. Air-set (Filter regula-
tor) is optionally integrated.
STANDARD SPECIFICATION
Measuring object Liquid and Gases
Not suitable for steam. It is recommended to
use M-91 -D type (With damper type) for low
pressure gas (Less than 0.29MPa)
Measuring range
TypeMeasuring range
Liquids *1 L/h Gases *2L/h (nor)
Standard type Min. 0 to 2Max.0 to 300
Min. 0 to 60Max.0 to 8500
*1: Water, *2: Air at 0°C, 1atm
Temp. Range 0 to 80°C
Indication Accuracy ±5% F.S.
High and low temp, version is not available for M-91 .
Other specification is equal to that of standard version.
SPECIFICATION OF PNEUMATIC TRANSMITTER
Output 20 to 100kPa against 0 to 100% span
(0.2 to 1.0 barG available on request)
Air supply 0.14 (±0.01)MPa
Air consumpion Approx. 14L/min. (nor)
AMB. Temp –30 to 60°C
Conduit Rc1/4 threads
Pressure gauge 0 to 0.2MPa range pressure gauges are
provided both for inlet and outlet
MODEL CODEDescription
Bottom to Top
Bottom side to Top side
Bottom rear to Top rear
Not provided
Provided
Flow direction
Needle valve
DIMENSIONS (M-911 TYPE)
STANDARD, SCREW CONNECTION
Thread size
L (mm)
1/4
180
3/8
160
1/2
190
*Screw socket (s) provided for Rc 1/4 and Rc 1/2.
AIR SET INTEGRATED, FLANGE CONNECTION
M-900 MICRO FLOWMETER
6 TOKYO KEISO CO., LTD. TG-F285-1E
M-920-T Electric output version
OUTLINE
M-920-T is a Metal tube micro flowmeter with Electric output. In addi-
tion to local flow indication by scale plate and pointer, electric output
of DC4 to 20mA is obtained for remote indication. Watertight general
purpose type and Flameproof version are ready to cover even hazard-
ous applications likely at chemical plants.
STANDARD SPECIFICATION
Measuring object Liquids and Gases
Not suitable for steam. It is recommended to
use M-92 -D-T type (With damper type) for
low pressure gas (Less than 0.29MPa)
Measuring range
Watertight (Non-Ex) type
TypeMeasuring range
Liquids *1 L/h Gases *2L/h (nor)
Standard type Min. 0 to 10Max.0 to 300
Min. 0 to 300Max.0 to 600
Min. 0 to 280Max.0 to 8500
Min. 0 to 8500Max.0 to 17000
Large flow type
Type
Standard type
Large flow type
Liquids *1 L/h Gases *2L/h (nor)
Min. 0 to 30Max.0 to 100
Min. 0 to 900Max.0 to 2800
NOT AVAILABLE NOT AVAILABLE
Flameproof type
*1: Water, *2: Air at 0°C, 1atm
Temp, Range 0 to 60°C
Indication Accuracy ±5% F.S.
High and low temp.version is not available for M-92 .
Other specification equal to that of standard version.
SPECIFICATION OF TRANSMITTER
Power supply DC24V ±10%
Output signal DC4 to 20mA against 0 to 100% span
Max. load Max. 400ΩAMB. Temp. 0 to 50°C
Insulation resistance DC500V, 20MΩ or more
Withstand voltage AC1000V (1min.)
Construction Watertight or Flameproof
Cable entry G1/2 thread
MODEL CODE
Construction
Flow direction
Needle valve
Description
Watertight (Non-Ex)
Flmeproof
Bottom to Top
Bottom to Top side
Bottom side to Top side
Not provided
Provided
*: d2G4, RIIS type approval No. 24685
DIMENSION
WATERTIGHT, FLANGE CONNECTION, M-921
* 300mm for 1” flange conn.
FLAMEPROOF, FLANGE CONNECTION, EP-M-921-T
M-900 MICRO FLOWMETER
TOKYO KEISO CO., LTD. 7TG-F285-1E
Thread size
L (mm)
1/4
245
3/8
225
1/2
275
*Screw socket (s) provided for Rc1/4 and Rc 1/2.
ACCESSORIES
NEEDLE VALVES
Needle valve for flow control. It will be assembled onto flowmeter
STANDARD SPECIFICATION
Nominal size 3/8”
Max. Op. Press 2.94MPa
Fluid temperature –30 to +150°C
Material SUS316
High pressure versions and special material on request.
Consult factory for details
MAGNET STRAINER
In case ferrous particles/powders are contained in the fluid, they will be
attracted by the magnet in float and operation will be interrupted.
To avoid this kind of problem, it is recommended to install a Magnet
Strainer at the upstream of flowmeter.
STANDARD SPECIFICATION
Nominal size 1/4”, 3/8”, 1/2”
Max. Op. Press 1.5MPa
Max. Op Temp. 200°C
Filter Std. 100 mesh/inch
Material SUS304, SUS316
PURGE SET
This is a combination of M-900 series MICRO FLOWMETER and con-
stant flow valve.
Supply pressure variation type and Load pressure variation type are
ready to meet the requirement.
Separate TECHNICAL GUIDANCE is available on request for this ver-
sion.
External dimension of M-901-V (With valve)
External dimension of MAGNET STRAINER
CM-21-900 TYPE PURGE SET
M-900 MICRO FLOWMETER
8 TG-F285-1E
* Specification is subject to change without notice.
Head Office : Shiba Toho Building, 1 – 7 – 24 Shibakoen, Minato-ku, Tokyo 105 – 8558
Tel : 03 – 3431 – 1625 (KEY) ; Fax : 03 – 3433 – 4922
e-mail : overseas.sales@tokyokeiso.co.jp ; URL : http://www.tokyokeiso.co.jp