4

TOKYO KEISO CO., LTD.

TG-F1153-E00

TF-2000T

ALL-IN-ONE MINI THERMAL MASS FLOWMETER

Full scale range (A•B) × 10C [m3/h (nor)]

Ex.) 30m3/h (nor) 300

400m3/h (nor) 401

750m3/h (nor) 751

Model code

Description

TF-2

TF-2211T

TF-2221T

TF-2421T

TF-2231T

TF-2431T

TF-2241T

TF-2441T

TF-2251T

T

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Type

2

4

1

2

3

4

5

020

030

050

080

100

150

200

300

500

800

101

121

151

201

251

301

401

501

601

801

102

ABC

4

6

04

06

15

20

25

32

40

50

65

80

R

L

U

D

P

S

F

1

Scale range

Output

Scale range [L/min (nor)]

Main material

SUS316 excluding TF-2251T

Connection rating

Connection size

Flow direction

Standard type

Low pressure drop type

Max. 120L/min (nor)

Max. 250L/min (nor)

Max. 500L/min (nor)

Max. 1000L/min (nor)

Max. 750m3/h (nor)

DC4 to 20mA, Pulse, Alarm output

0 to 2

L/min (nor)

0 to 3

L/min (nor)

0 to 5

L/min (nor)

0 to 8

L/min (nor)

0 to 10

L/min (nor)

0 to 15

L/min (nor)

0 to 20

L/min (nor)

0 to 30

L/min (nor)

0 to 50

L/min (nor)

0 to 80

L/min (nor)

0 to 100 L/min (nor)

0 to 120 L/min (nor)

0 to 150 L/min (nor)

0 to 200 L/min (nor)

0 to 250 L/min (nor)

0 to 300 L/min (nor)

0 to 400 L/min (nor)

0 to 500 L/min (nor)

0 to 600 L/min (nor)

0 to 800 L/min (nor)

0 to 1000 L/min (nor)

Max. 750m3/h (nor)

(Refer to Table 1.)

SUS304

TF-2251T only as for the flange connection, choice is possible

SUS316

Available for all models

Rc female screw

SWL

JIS10K flange

1/4"

10mm (3/8")

15mm (1/2")

20mm (3/4")

25mm (1")

32mm (1-1/4")

40mm (1-1/2")

50mm (2")

65mm (2-1/2")

80mm (3")

Left to Right (Std.)

Right to Left

Bottom to Top

Top to bottom

Refer to P.3 for process

connection of each

model

Table 1. TF-2251T Full scale

Unit: m

3/h (nor)

Meter size

Gas

AIR

N2

O2

CO

CO2

Ar

NH3

CH4

C2H6

C3H8

C4H10

13A

25mm

Min.

30

30

30

30

30

30

23

15

17

14

12

15

Max.

75

75

75

75

75

75

57

38

42

35

30

37

32mm

Min.

65

65

65

65

65

65

49

33

36

30

26

32

Max.

150

150

150

150

150

150

114

75

84

69

60

74

40mm

Min.

90

90

90

90

90

90

68

45

50

41

36

44

Max.

200

200

200

200

200

200

152

100

112

92

80

98

50mm

Min.

140

140

140

140

140

140

106

70

78

64

56

69

Max.

320

320

320

320

320

320

243

160

179

147

128

157

65mm

Min.

220

220

220

220

220

220

167

110

123

101

88

108

Max.

520

520

520

520

520

520

395

260

291

239

208

255

80mm

Min.

320

320

320

320

320

320

243

160

179

147

128

157

Max.

750

750

750

750

750

750

570

375

420

345

300

368