AMC 1ACO, Инструкция по эксплуатации, Страница: 17 / 22

Gas Monitor 1ACO One-Channel Monitor
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Each alarm relay (WARNING, ALARM) may be selected as either energized when alarm active,
or de-energized when alarm active, using on-board jumpers JB11, JB12, respectively. This
option is provided to allow configuration flexibility. If configured to energize the relay when alarm
becomes active (jumpers set to “normally de-energized”), a controller failure or controller power
failure will prevent an alarm condition from being produced. The opposite setting of jumpers
(relay “normally energized”) will result in an alarm condition produced on reaching the gas
threshold level, controller failure or controller power failure.
5.6 CALIBRATION/SERVICE
The Gas Monitor 1ACO and AMC S2e (CO) comes factory calibrated and does not need to be
adjusted as part of installation and should be ready for operation after installation and a 30
minute stabilization time.
Subsequent calibration is required as a part of regular maintenance, and when replacing the
sensor. See section 6 Preventive Maintenance of this manual for the recommended calibration
schedule.
Caution:
- Only qualified personnel should perform the actual calibration.
- Users new to gas calibration are advised to consult with Armstrong Monitoring
The Armstrong Monitoring Corporation offers the following plans:
1. Factory pre-calibrated replacement sensor/transmitter units
2. On site installation and calibration by Armstrong Monitoring
3. On site calibration by Armstrong Monitoring
4. Training by Armstrong Monitoring
Direct service enquiries to The Armstrong Monitoring Corp at (800)465-5777 or
service@armstrongmonitoring.com . The monitor should not need re-calibration when first
installed and powered up, but a test for correct operation is recommended after a stabilization
period.
The table and figure below are provided to identify key components used in calibration.
•
RV4 is used to condition the signal from the sensor so that it is in a usable range. TP4
is used to monitor the signal from the sensor.
•
RV5 is used to set a threshold at which the WARNING is triggered. TP5 is used to
monitor these WARNING levels.
•
RV6 is used to set a threshold at which the ALARM is triggered. TP6 is used to
monitor these ALARM levels.