AM7000 Series METAL TUBE VARIABLE AREA FLOWMETER

TG-F2026-E21

TOKYO KEISO CO., LTD.

5

AM7

□□□ /E□ (LOCAL INDICATOR WITH ELECTRIC TRANSMITTER)

AM7

□□□ /E□ indicates flow rate by pointer and scale plate, and outputs electric (4 to 20mA DC) signal which is proportional to flow rate.

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

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SPECIFICATION OF TRANSMITTER

Power supply voltage

: 10 to 30V DC

❲Voltage between transmitter terminals❳

(For Intrinsically safe version : 10 to 28V DC/For TIIS Flameproof version: 12 to 30 VDC)

Current output

: 4 to 20mA DC

❲Effective output range : 4.0 to 21.6mA At abnormal condition, however, 22.8mA or 3.75mA as an option can

be output.

❳

Allowable load resistance : Less than 830

Ω (580Ω or less / 24V DC)

Determine the allowable load resistance for each supply voltage using following formula.

Allowable load resistance

≦(Power supply voltage [V] –10 ) / 0.024 [

Ω]

The allowable load resistance includes the one of circuit wiring.

Output accuracy

:

±1.0%F.S. (Against flow calibration)

Low cut off

: 0 to 20%F.S. (default 7%F.S.)

Damping

: 0 to 20s (default 1s)

Cable entry

: Weather proof 2–M20

×1.5, 2–G1/2, 2–NPT1/2, Weather proof connector

: Intrinsically safe & Flame proof 2–M20

×1.5, 2-G1/2, 2–NPT1/2, Packing type cable gland

Note : The packing type cable gland model SXC -16BY made by Shimada Electric Co. shall be used for the TIIS

flame proof construction. The cable entry for the indicator is G1/2 only.

Construction

: Dust tight and water immersion proof

IP67

: Intrinsically safe

Ex ia IIC T1 to T6

AM7

□□□/E2/□I

(dust explosion-proof)

The temperature class of TIIS certified products is T6.

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

: Flame proof

Ex d IIC T1 to T6 AM7

□□□/E1/□E

The temperature class of TIIS certified products is T4.

Ambient temp.

: Dust tight and water immersion proof

–20 to 70°C

: Intrinsically safe

–20 to 60°C

: Flame proof

–20 to 55°C

(For TIIS certified products)

–20 to 60°C

(For other certified products)

Insulation resistance

: 20 M

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

Withstand voltage

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

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DIMENSION OF INDICATOR / TRANSMITTER

●

TERMINAL AND WIRING

110

Cable entry

41

69

17

56

155

75

30

50.5

310.5

Approx. mass: 3.7kg

A

+

–

E

Power

supply

Load resistance