The Multi-Zone Gas Leak Monitor HGM-MZ offers superior performance, flexibility and functionality for low level continuous monitoring of refrigerant gases used in most commercial systems including: Chlorofluorocarbons
(CFC / FCKW), Hydrochlorofluorocarbons (HCFC / H-FCKW), Hydrofluorocarbons (HFC / HFKW). Separate monitors are available forAmmonia (NH3 - AGM-MZ) and Carbon Dioxide (CO2 - CO2-MZ).
These state-of-the-art fixed gas monitors lead the industry in performance, integration capabilities, initial cost and cost of ownership. Capable of detecting more than 38 refrigerant gases, the Multi-Zone system is compliantwith ASHRAE standard 15-2007, is ETL Energy Saving Listed, meets California Code Regulations for Refrigerant Monitors and is EN 14624 and CE certified.
The HGM-MZ Multi-Zone Monitor provides continuous detection of refrigerant gas levels in up to 16 separate test zones and can be fitted with an optional two channel 4-20 mA current loop board for connection to remote
monitoring equipment. Multi-Zone monitors retain a log of previous readings that can be easily accessed for analysis. Four relay contacts are provided that can be programmed to trigger external alarm devices in the
event of a system fault, or if a leak (small), spill (medium) or evacuation (large) level of gas is detected, while audible and visual front panel indicators show alarm and fault conditions. With only minor periodic maintenance,
such as the occasional replacement of filters, and active diagnostics that continuously check the system for proper operation.
Multi-Zone monitors help maintain your equipment efficiency, promote safety and protect the environment.
Most gasses: ±1 ppm ±10% of reading from 0-1000 ppm (R11, R22, and R113 ±10 ppm ±15% of reading 0-1000 ppm)
4 point standard, expandable to 16 points in 4 point increments
3 Indicator lights:
• Green Monitor is powered on. LED glows during normal operation; flashes when unit is in warm-up mode
• Red Alarm. LED flashes when any point has exceeded the alarm setting.
• Yellow Fault. LED flashes when there is a system fault
Automatic or manual (hold)
Auto or on zone change
5 to 315 seconds – depending on air line length and number of zones
1,200 ft (366 m) maximum for combined length of sample + exhaust tubing (each zone)
Dual optional 4-20 mA DC isolated outputs. Channel 1 = zone area, Channel 2 = PPM
Four SPDT alarm contacts rated 2A at 250 VAC (inductive) 5 A at 250 VAC (resistive). Three are assigned to PPM level alarms, one assigned to system faults.
Full two-way communications with Remote Display Module or Building Management System via RS-485 serial interface. RS-232C communications port standard.
0 to 50°C
5 to 90%, non condensing
100 to 240 VAC, 50/60 Hz, 20 W
31.06 cm x 34.80 cm x 12.60 cm
IM Env. Equip. Germany GmbH reserves the right to adopt technical modifications without prior notice.