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Multi-Zone Fixed Point
Refrigerant Leak Monitors
AGM300/ADM800 ammonia monitor

AGM300/ADM800

For continuous multi point monitoring of ammonia refrigerant gases
HGM300/RDM800 CFC monitor

HGM300/RDM800

For continuous multi point monitoring of CFC, HFC HCFC and halon refrigerant gases
These monitors enable up to 16 individual zones to be monitored continuously. Using split architecture design, advanced infrared technology and the latest in network communcation protocols, these monitors provide reliable point by point refrigerant loss monitoring at concentration levels as low as 1 ppm.

Innovations in Infrared Technology

  • Select refrigerants to be measured - point by point!
  • Eliminate false alarms with use of a non-dispersive IR source with sample draw system
  • Measure all gases up to 10,000 ppm with a sensitivity of 1 ppm
  • Sample points up to 500 feet from unit

Split Architecture Design

  • Remotely acknowledge alarms provide maintenance and evaluate operating conditions
  • Quick field expansion from 4 to 16 sampling zones with only a screwdriver
  • Bolt in Bolt out internal components so the unit never leaves the wall

Enhanced Communication Protocols

  • Full two way communication through RS-485 to the remote display module and building management systems such as Modbus RTU
  • RS232C port for local/modem communication

Cost Effective

  • Split architecture design keeps your investment to a minimum
  • Two year warranty protects your investment

Specifications - HGM300 & AGM300

HGM300 CFC: R-11, R-12, R-113, R-114, R-502
HFC: R-404a, R-407a, R-407c, R-134a, R-410a, R-507, R-508b
HCFC: R-22, R-123, R-124, R-500, R-503, R-401a, R-402a, R-40b, R-409a, R-23
Halon: 1301
AGM300 R-717 ammonia
Inputs 4 point std, expandable to 16 points in 4 point increments
Output Signal 3 SPDT, 5 Amp, 240VAC rated alarm relays and 1 SPDT, 5 Amp 240 VAC faced system fault, relay plus a digital display with an optional dual 4-20 mA DC analog output
Detector Type Non-dispersive infrared
Measuring Range Refrigerant: 0-10,000 ppm
Ammonia: 25 to 10,000 ppm
Sensitivity All gases 1 ppm
Accuracy All gases +/- 10 ppm from 0 to 100 ppm
+/- 10% of reading from 100 to 10,000 ppm
Front Panel Display Green LED indicates when unit is operating properly
Red LED indicates when any monitored point is above its alarm setting
Yellow LED indicates a clogged sample line or other system fault
Response Time 5 to 120 seconds depending on tube length and gas concentration
Maximum Monitoring Distance Up to 500 feet from measuring point to monitor
Power 120 VAC/ 60 Hz standard
240 VAC/ 50 Hz
Size 17"L x 12" W x 5.5" D
Weight 15 pounds

Specifications - RDM300 & ADM300 (Remote Display Models)

Inputs Accepts from 1 to 4 inputs via RS-485 from up to 4 HGM3000 refrigerant models
Display Backlit LCD display the measured point in ppm
Trend Mode/Datalogging User may select a graphical display of the ppm trend for any measured point (100 data entries per point)
Output Signal 2 SPDT, 5 Amp, 240 VAC assignable alarm relays
Alarm Indications Channel display flashes, red light flashes, alarm signal sent via RS-485
Input Fault Indication Yellow light flashes and the LCD indicates location of input fault
Maximum Monitoring Distance Maximum of 4,875 wiring feet from furthest HGM300 to RDM800 display
Power 120 VAC/ 60 Hz standard
240 VAC/ 50 Hz
Size 11"L x 10" W x 3" D
Weight 5 pounds

Ordering Information

For pricing, please call AFC International at 1-800-952-3293, 219-987-6825 or fax 219-987-6826 or email sales@afcintl.com
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AFC International, Inc.
PO Box 894, DeMotte, IN 46310
715 SW Almond St, Ste C, DeMotte, IN 46310
800-952-3293 219-987-6825 Fax 219-987-6826
eMail: sales@afcintl.com

Last Revised: 10/4/07