IMR Environmental Equipment, Inc.

- Model HGM-MZ / AGM-MZ / CO2-MZ - Multi-Zone Gas Leak Monitor

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The 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.

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 for Ammonia (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 compliant with most regulations.

Multi-Zone monitors help maintain your equipment efficiency, promote safety and protect the environment.

  • Ideal for Chillers, Grocery Stores, Mechanical Rooms, Physical Plants, Refrigeration Racks, Walk-In Freezers
  • Proprietary infrared sensing technology virtually eliminates false alarms and extends sensor life
  • No calibration required
  • Low detection limits enable leaks to be found early reducing energy and refrigerant consumption
  • Fastest sampling rate with the longest sampling distance in the industry at 365m
  • Large Graphic LCD for easy set-up and real-time monitoring
  • Optional with Remote Display

HGM-MZ:

CFC:  R11, R12, R113, R114, R502, HFP

HFC:R125, R-134a, R236FA, R245Fa, R32, R-404a (HP62), R-407a, R-407c (AC9000), R-407F, R-410a (AZ20), R422a, R422d, R427a, R-507 (AZ50), R-508b (SUVA95)

HCFC:R21, R22, R23, R123, R124, R227, R500, R503, R401A (MP39),

R402A (HP80), R402 (HP81), R408A, R409A, R236FA, R125, R245FA, R422A, R422D, R427A

Halon:H1211, H1301, H2402

Other:FA188, FC72, H1234YF, H1234ZE, N1230, N7100, N7200, N7300, N7600, R424A, R426A, R438A, CUSTOM

Measurement Range: All gases 0 to 10,000 ppm


AGM-MZ:

Gas:Ammonia (NH3) / R-717

Measurement Range:0 to 10,000 ppm


CO2-MZ:

Gas: Carbon Dioxide (CO2) / R-744

Measurement Range: 300 to 10,000 ppm


Sensor:NDIR, 7 - 10 years

Coverage:  4 point standard, expandable to 16 points in 4 point increments

Front Panel:3 Indicator lights

Sampling Mode:Automatic or manual (hold)

Re-Zero:Auto or on zone change

Response Time:5 to 315 seconds – depending on air line length and number of zones

Monitoring Distance:1,200 ft (366 m) maximum for combined length of sample + exhaust tubing (each zone)

Conditioned Signal:Dual optional 4-20 mA DC isolated outputs. 

Alarms: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.

Communications:Full two-way communications with Remote Display Module or Building Management System via RS-485 serial interface. RS-232C communications port standard.

Operating Temp.:0 to 50°C

Ambient Humidity:5 to 90%, non condensing

Power Supply:100 to 240 VAC, 50/60 Hz, 20 W

Dimensions:31.06 cm x 34.80 cm x 12.60 cm

Weight:6.8 kg

IMR Environmental Equipment, Inc. reserves the right to adopt technical modifications without prior notice.

Included:

  • Multi-Zone Gas Leak Monitor
  • Line-End Filter
  • End of Line Water Stop Filter
  • Manual
  • Charcoal Filter (only HGM-MZ)
Optional:
  • 4-20mA Current Loop Interface Board
  • Remote Display
  • Expansion Kit
  • Back - UPS
  • Signals
  • Horns
  • Line-End Filter
  • Charcoal Filter
  • End of Line Water Stop Filter
  • Tubimg
  • Splitter-Kit
  • Maintenance Kits

Excerpt of possible part numbers:

3015-5043 HGM-MZ Halogen Gas Monitor - 4 Zone

3015-5047 AGM-MZ Ammonia Gas Monitor - 4 Zone

3015-5356 CO2-MZ Carbon Dioxide Gas Monitor - 4 Zone

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