B-144-12-E
6
3) This flowmeter is not provided with subtract function. If pulsation in the flow (where the
fluid moves back and forth in the pipeline under the influence of pressure) or reversal of
flow exists, the total counter may show erratic reading, accumulating all incoming pulses
irrespective of flow direction.
2.1 Operating Conditions for Explosionproof Model
This product is approved as explosionproof. Failure to comply with the following conditions will
automatically nullify this rating.
(1) Do not perform any unauthorized modification to this product.
(2) Before opening the enclosure, if necessary for some reason, ensure safety against hazards associated
with flammable gases present in the atmosphere.
(3) In case of TIIS explosionproof type used under the ambient temperature of 45
℃
or higher, use a cable
resistant to the temperature of 75
℃
or higher.
(4) Intrinsically safe rating remains valid only when no external circuit is connected to this equipment. To
use it rated intrinsically safe, do not connect it to any external circuitry.
(5) Use under ambient temperature conditions below 60
°
C.
(6) Metered fluid temperature must be held below 120
°
C.
Specification (1): Output provided (Product code ends with a code other than 00.)
Fig. 2. 1
Conn. terminals
for external wiring
Cable lead-in
※
1
(w/pressure-
tight packing)
Register (ex. type)
TEM
1
2
3
4
Ext. circuit
Ext. wiring
※
4
specs.
0.1
μ
F max.
1.0mH max.
External wirings connect across 1-2 and 3-4.
(Supply voltage: 45VDC max.)
General- purpose
electrical instrument
Conn. terminals for
※
3
external wiring
Hazardous area Nonhazardous area
