M-900 Series MICRO FLOWMETER

4

TOKYO KEISO CO., LTD.

TG-F2287-E03

Local Indication version

STANDARD VERSION

OUTLINE

Model M-900 is a local indicator for very small flow measurement.

It indicates flow rate of liquids and gases with a scale and a pointer.

Its purely mechanical construction requires neither electric power nor air.

STANDARD SPECIFICATION

Measuring fluid

Liquids and Gases

The models with a damper are recommended

for low-pressure gases (less than 0.3 MPa)

Type

Standard type

Large-flow

type

Flow

range

Liquid *1

[L/h]

2 to 5

5 to 10

10 to 300 300 to 600

Gas *1

[L/h (nor)] 60 to 150 150 to 300

300 to

8,500

8,500 to

17,000

Fluid pressure

[MPa]

Max. 10 (Option: 20)

(Subject to flange ratings for the flange

connection)

(Max. 2.94 for the types with a liquid damper)

Fluid temperature

[ºC]

0 to 149

(High- and low-temperature types: −20 to 200 *3)

Indication

accuracy *4

[%F.S.]

±5

(High-accuracy type:

±3)

±3

(High-accuracy type:

±2)

Rangeability

10:2

(Option:

10:1)

10:1

Screw

1/4, 3/8 (Standard), 1/2

3/8, 1/2

(Standard),

3/4

Flange

10A, 15A, 20A, 25A

15A, 20A,

25A

*1 Liquid: water (density of 1.0 g/cm3, viscosity of 1.0 mPa·s),

Gas: air (0ºC, 0 MPa)

*2 Models with a damper are not available.

*3 Models with a damper are not available. The fluid temperature

must be −15 to 150ºC for the models with a needle valve.

*4 Flowmeters for liquids with the specified indication accuracies

may not be available depending on the liquid viscosity.

Viscosity limit for liquid flow measurement

Fill scale

Viscosity limit (mPa·s)

2 to 20 L/h

5

20 to 50 L/h

10

50 L/h or higher

20

Material availabilty

Part name

Body

Tapered tube

Float

SUS304

SUS304

SUS304

Std.

Available material

SUS316, (SCS14) SUS316L,

Equivalent to MA276 *1, Titanium *1

SUS316, SUS316L,

Equivalent to MA276 *1, Titanium *1

SUS316, SUS316L,

Equivalent to MA276 *1, Titanium *1

*1 Not applied for owmeter with gas damper type.

Paint

Munsell 7.5BG4/1.5 (Indicator housing)

AMB. Temp.

–30 to 80°C

Enclosure of indication part

Dust-proof and splash-proof

(Equivalent to IP54) (Option: Equivalent to IP65)

DIMENSIONS

●

STANDARD, SCREW CONNECTION M-901

50.5

62

43

112.5

Screw size

L (mm)

1/4

180

3/8

160

1/2

190

* Screw socket (s) provided for Rc 1/4 and Rc 1/2.

* "L" length of the owmeter with gas damper is extended by 40mm at downstream.

●

STANDARD, FLANGE CONNECTION M-901

43

50.5

62

112.5

* Length of flowmeter with gas damper is extended by 40mm at downstream.