AM7000 Series METAL TUBE VARIABLE AREA FLOWMETER

TG-F2026-E21

TOKYO KEISO CO., LTD.

9

AM7

□□□/N□ (LOCAL INDICATOR WITH PROXIMITY SWITCH TYPE ALARM)

With local flow rate indication, AM7

□□□/N□ has a proximity switch which outputs alarm signals complying with NAMUR standard.

In addition to the dust tight and water immersion proof type, the intrinsically safe (dust explosion-proof) version is available.

●

SPECIFICATION OF TRANSMITTER

Alarm point

: 2 points (1 point high alarm, 1 point low alarm or 2 points high and low alarm)

Switch

: Proximity switch

Power supply voltage : 8V DC

Operating current

: Proximity switch complying with NAMUR, ON :1mA or less, OFF : 3mA or more

Setting accuracy

:

±1.5% F.S. (Against flow calibration)

Reset span

: Less than 1.5% F.S. (Against flow calibration)

Cable entry

: G1/2 or NPT1/2 or others

Enclosure

: Dust tight and water immersion proof IP67

: Intrinsically safe

Ex ia IIC T1...T6

(dust explosion-proof)

(The temperature class of TIIS certified products is T5. See Page 12 for details.)

II 2 D Ex ia IIIC T135°C Db (For ATEX certified products)

Ambient temp.

: Dust tight and water immersion proof –25 to 80°C

: Intrinsically safe

–20 to 60°C

TIIS certified transmitter

–20 to 50°C

Other certified transmitters

(Ambient temperatures above are subject to the safety barrier.)

Insulation resistance : 100 M

Ω or more/500V DC (between batch of power supply terminal and indicator case)

Withstand voltage

: 500V DC/1min (between batch of power supply terminal and indicator case)

●

DIMENSION OF INDICATOR / TRANSMITTER

82

61.5

291.5

36.5

11

Cable entry

(47)

230

Approx. mass: 2.8kg

●

TERMINAL AND WIRING

1

4

2

5

+

+

–

–

3

6

1

2

3

4

5

6

High

alarm

Low

alarm

Terminal No.

High alarm

Terminal No.

Low alarm

Note : Terminal No.4 and 5 are not used for 1 point

high alarm. Likewise, terminal No. 1 and 2 are

not used for 1 point low alarm.

1

2

3

4

5

6