YOKOGAWA CM6G, Руководство пользователя

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<4. Preparation of Operation>
4-2
IM 11R02A01-02E 5th Edition : Dec. 28, 2016-00
4.4 Supply of the Air
Open valve V-14 and supply the air. The normal pressure is as under mentioned:
Table 4.3
Pressure Gauge Normal pressure
Pressure gauge of air set
Pressure gauge (2-3)
approx. 200 kPa
approx. 20 kPa
When the pressure is not normal, adjust it by the following procedures.
1) Adjust the pressure gauge of the air set to approx. 200 kPa, using the air set valve (2-1).
Turn the valve to the right to increase the pressure.
2) Adjust the pressure gauge (2-3) to about 20 kPa, using the pressure reducing valve (2-2)
and V-16. Turn the pressure reducing valve to the right to increase the pressure.
4.5 Supply of Power
1) Set the positions of each switch on the front panel of the calorie detector to the followings:
Table.4.4
Switch Position
POWER
SAFE EV
METER
OFF
SET
P.MEAS
2) Turn on the switches of the following components in the switch box.
• Calorie Detector
• Orifice Assembly (NFB)
• Pre-heater (NFB)
• Computing station
• Density meter (With density compensation)
• Dehumidifier (For steel mill use )
3) When you turn on the “POWER” switch on the front of the calorie detector, both
”
POWER”
and “ALARM” lamps are lit to show an alarm status.
4) When the power is supplied to the computing station, the alarm lamp on the front (yellow) lit
on, but this does NOT indicate “out of order.”
5) Turn on “POWER” in gas density meter (for the one with a gas density meter attached)
6) Approx. 60 minutes later, the lamp of the orifice assembly starts flashing and the
temperature of the orifice constant chamber becomes stable.
4.6 The Zero Adjustment of the Differential
Pressure Transmitter
1) Remove the impulse lines from transmitters.
2) Turn on the main breaker of the switch box and the calorie detector switch.
3 Turn on the POWER switch on the front panel of the calorie detector.