Specifications

Ammonia Gas Monitor – Multi Zone
Instruction 3015-5113 43
5 Maintenance
Warnings & Cautions
WARNING:
Shock hazard! Always disconnect AC power before opening the enclosure
of the monitor.
CAUTION:
The AGM-MZ contains sensitive electronic components that can be easily
damaged. Do not touch nor disturb any components. Do not dislodge electrical wiring
or pneumatic tubing.
Hydrophobic Filter
The hydrophobic filter prevents water from entering the IR detector. A zone flow fault will occur (fault code
<0800>) if this filter becomes blocked. Replace the hydrophobic filter as required (P/N 07-1650).
Servicing Air Lines & Replacing Termination Filters
The gas sample line and optional exhaust line should be periodically checked for obvious signs of kinks,
damage and contamination. Replace the tubing as required (P/N 3015-5111).
The gas-sample line and purge-line termination filters prevent dust and dirt from entering the monitor. Both of
the filters should be periodically checked and replaced when there are obvious signs of contamination.
 A zone flow fault will occur (fault code <0800>) if the gas-sample line filter becomes blocked
 A purge flow auto will occur (fault code <1000>) if the purge-line filter becomes blocked.
Remove the filter from the line and replace it with a new one (P/N 3015-3420).
Fuses
The AGM-MZ is protected from electrical damage by two, 1A, 250 V, type “F” fuses. Locate the fuse holders
(page 14) and carefully remove the fuses from their holders. Inspect and test the fuses with an ohm meter for
continuity. Replace the fuses as required (P/N 04-2620).
Clock Battery
The clock battery maintains the correct date and time when AC power is not applied to the monitor.
Replace this battery approximately every 5 years (P/N 204-0020).
Sample Pump
The sample pump draws the gas sample into the monitor through the IR detector and discharges the sample
via the exhaust port. To replace the pump, remove the inlet and outlet tubing, disconnect the AC power wires
from the pump and remove the pump from the monitor. Install a new sample pump (P/N 3015-5176).
Intake Manifolds
Up to three additional intake manifolds (P/N 3015-5171 & 3015-3411) can be installed in the AGM-MZ to
increase the total capacity to 16 zones. Each manifold requires a sample line end filter for each of the 4
zones.
Please follow the instructions provided to install the manifolds. Then follow the instructions earlier in this
manual to install the air lines and complete the zone programming steps. The AGM-MZ setup must also be
updated to recognize the new zones.