TG-F1154-E00

TF-2261T

MINI THERMAL MASS FLOWMETER

2

TOKYO KEISO CO., LTD.

MODE

Upper line: Flow rate

Indicator

Bottom line: Totalizing

1

Unit

2

High alarm (HA)

7

Low alarm (LA)

8

UP

3

DOWN

4

SHIFT

5

MODE

6

✽ Use the MODE key for gas setting.

MASS FLOW METER

TF-2000T

TOKYO KEISO CO.,LTD.

JAPAN

UNIT:(nor)

m3

LA

COUNTS

HA

L

L/min

L/h

MODE

MINI-THERMAL

3

m /h

2-G1/2

M3 screw

4

10

(

+)

(C)

ANALOG OUT

L A

12

8

7

PULSE OUT

(E)

(C)

RESET

3

9

(–)

(E)

5

6

11 12

(C)

(E)

H A

POWER

0

24V

(Rating: DC30V, 30mA max.)

Open collector

(

+)

H A

High alarm

Flow rate alarm output

1

(–)

PULSE OUT

(E)

Totalizing pulse output

(–)

(

+)

(

+)(–)

Low alarm

(E)

3

(C)

2

(C)

45

(E)

L A

6

(C)

POWER

Power supply

DC24V

11

output

External switch

7

(–)

9

DC4 to 20mA

8

10

(

+)

0

ANALOG OUT

RESET

12

24V

■ FRONT PANEL

■ TERMINAL

■ DIMENSIONS

FLOW

TOKYO KEISO CO.,LTD.

JAPAN

UNIT:(nor)

m3

LA

COUNTS

HA

L

L/min

L/h

MODE

MINI-THERMAL

2-Rc

L

MASS FLOW METER

TF-2000T

3

m /h

FLOW

JAPAN

TOKYO KEISO CO.,LTD.

UNIT:(nor)

m3

LA

COUNTS

HA

L

L/min

L/h

MODE

MINI-THERMAL

L

MASS FLOW METER

TF-2000T

3

m /h

TF-2261T-＊＊＊-F＊＊

TF-2261T-＊＊＊-P＊＊

Note: The outer shapes of body for TF-2261T-

✽✽✽-P25 and

TF-2261T-

✽✽✽-F25 differ slightly from the above ones.

■ DIMENSION TABLE

Meter size

L

(mm)

25mm

32mm

40mm

50mm

65mm

80mm

195

215

230

270

290

320

34

43

49

61

77

89

50

60

65

75

—

—

166

175

177

183

191

198

5.0

5.5

5.7

6.8

9.4

10.4

3.3

3.2

3.3

4.0

—

—

Flange

Screw

H

(mm)

Flange

D (mm)

Mass (Approx.) kg

Screw

■ MODEL CODE

Model code

Description

TF-2261

T—

—

Full scale flow rate ＊ A B C —

—

Scale range

Materials

4—

SUS304 (Available only for

flange connection)

6—

SUS316 (Available for all

models)

Connection rating

P

—

Rc screw (1" to 2")

F—

JIS 10K Flange

(25 to 80 mm)

Connection size

＊: Full scale flow rate ＝

（AB）×10C m3/h（nor）

（Ex.）

80 m3/h（nor）→ 800

400 m3/h（nor）→ 401

1500 m3/h（nor）→ 152

25 —

25 mm (1")

32 —

32 mm (1-1/4")

40 —

40 mm (1-1/2")

50 —

50 mm (2")

65 —

65 mm (2-1/2")

80 —

80 mm (3")

Flow direction

— R Left to Right (std.)

— L Right to Left

— U Bottom to Top

— D Top to Bottom

■ CAUTION FOR INSTALLATION

❏ Straight run upstream and downstream (d: inside diameter)

Installation of the pipe is the same connection as flowmeter.

❏ Rc screw connection is to be used for the pipe less than Sch. 80.

❏ Pipe which is different from connection of flowmeter is ±1 size.

Install the necessary straight run of the same connection as the

flowmeter.

❏ Install valves downstream if any.

❏ Before installing the flowmeter onto process piping, flush and

clean the whole piping.

❏ Use the shielded cable for wiring and do not locate it near to

power supply line etc. to avoid the electric noise.

❏ There is the arrow mark showing the flow direction. Make the

installation so that the measured gas can flow as per the arrow

marking.

Upstream

Downstream

10d

5d

Head Office : Shiba Toho Building, 1 – 7 – 24 Shibakoen, Minato-ku, Tokyo 105 – 8558

Tel : +81-3 – 3431 – 1625 (KEY) ; Fax : +81-3 – 3433 – 4922

e-mail : overseas.sales@tokyokeiso.co.jp ; URL : http://www.tokyokeiso.co.jp

* Specification is subject to change without notice.