AMC-1222 CO/NO
2
Multidrop
17
5.2.3 SPAN ADJUSTMENT FOR (CO) 75 PPM (AMC-1222-3)
Step 8
Apply CO span gas, CO span gas concentration should be in 25ppm to 75ppm CO
range
Step 9
After the signal reading has stabilized (approx 3 min) adjust Span potentiometer to
2.00VDC/75*Span gas concentration. i.e. if using 25 ppm CO
2.00VDC/75*25=0.6667VDC
Step 10
If Signal > .7VDC verify CO Alarm LED Flashes, If Signal > 2.00VDC verify CO Alarm
LED Illuminates steady State
Step 11
Remove Gas, Calibration complete
Figure 5-1 Calibration Procedure for 1222 CO
Summary of Contents for AMC-1222
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Page 5: ...AMC 1222 CO NO2 Multidrop 4 2 PRODUCT INFORMATION Figure 2 1 AMC 1222 Sensor Module...
Page 12: ...AMC 1222 CO NO2 Multidrop 11 Figure 4 1 Transmitter Mounting Dimensions...
Page 13: ...AMC 1222 CO NO2 Multidrop 12 Figure 4 2 Pole Mount...
Page 20: ...AMC 1222 CO NO2 Multidrop 19 Figure 5 2 Calibration Procedure for 1222 NO2...
