Specifications

Halogen Gas Monitor – Multi Zone
30 Instruction 3015-5074
4 General Operation
Functional Overview
Normally each HGM-MZ will sequentially perform measurements on its active zones without user input. The
total time it takes an HGM-MZ to complete a measurement cycle is directly proportional to the number of
active zones and the physical length of the air lines. Monitors linked together on a network operate
independently of each other and consequently complete their respective measurement cycles at different
rates.
The HGM-RD operates by polling the network approximately once every 12 seconds to determine the current
status of the HGM-MZ monitors. If more than one HGM-MZ is connected to the network, it will sequentially
poll each monitor for its status. As a practical matter this simply means that the more complicated the
network, the longer it will take the HGM-RD to update the status information for all zones.
The Zone Screen
From System Setup Screen #2, scroll down to select the ZONES option.
Zone Setup Screen #1
Location
This is the name you assign to the HGM-MZ to identify its location. It may have up to 12 alphanumeric
characters.
1. Press the ENTER key to adjust the setting.
2. Use the LEFT/RIGHT cursor keys to move across the entry field and the UP/DOWN cursor keys to
modify the individual characters.
3. Press ENTER to accept the new entry or ESC to revert to the previous setting.
Refrigerant Type
This displays the kind of refrigerant the HGM-MZ is detecting.
1. Press the ENTER key to adjust the setting;
2. Use the LEFT/RIGHT cursor keys to select the type of refrigerant you want the device to detect.
3. Press ENTER to accept the new entry or ESC to revert to the previous setting.