Operation And Calibration; Operation; Calibration; Applying Calibration Gas Sample(S) - AMC 1022M Series Instruction Manual

3 OPERATION AND CALIBRATION

3.1 OPERATION

NOTE
BEFORE TUNING ON THE MAIN POWER TO THE MONITOR, MAKE SURE ALL
CONNECTIONS ARE PROPERLY MADE.
When power is applied, the green power LED will light. A one-minute time delay eliminates false alarms
from occuring during the sensor's warm-up period. After this delay, the unit becomes fully operational. If
time delays are required or the audio alarm indicator is not needed, the three-circuit miniature switch can be
set accordingly (refer to Section 1.1, item 14 and Figure 1-1).
If any gas surrounding a sensor exceeds the low alarm trip point setting, the yellow LED and low alarm
relay for that channel will be activated. Likewise, if any gas exceeds the high alarm trip point setting, the
red LED, high alarm relay and buzzer will be activated.

3.2 CALIBRATION

The monitor can operate with remote sensor and/or transmitter assemblies, on-site adjustments for remote
sensors are made at the monitor, and adjustments for transmitters are made at the transmitter locations.
The AMC-l022M series monitor is factory calibrated at levels based on set standards. Calibration of the
monitor should be performed every 6 months, unless the alarm trip point settings need to be changed.
Recalibration only necessary when either replacing a sensor or changing the alarm trip point settings.
NOTE
BEFORE MAKING ANY CHANGES TO ALARM LEVEL SETTINGS WE RECOMMEND
CONSULTING THE ARMSTRONG MONITORING CORPORATION FOR ADVICE ON
SETTING THE PROPER TRIP POINT VOLTAGE FOR A SPECIFIC ALARM CHANGE.

3.2.1 APPLYING CALIBRATION GAS SAMPLE(S)

NOTE
FOR THIS PROCEDURE, REFER TO CALIBRATION SECTION 3.2 IN THE REMOTE
SENSOR AND/OR TRANSMITTER MANUAL(S)

3.2.2 ADJUSTMENTS

To observe immediate reaction during calibration, the low and high alarm time delays should be disabled.
All calibration is made using the three trimmers along the top edge of each circuit board as shown in Figure
3-1.
AMC- - - - 1022M AMC AMC AMC 1022M 1022M 1022M
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