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26 Instruction 3015-4286
Specifications
Product Type........................ Single zone infrared monitoring system for low level continuous monitoring of
ammonia refrigerant gas used in most commercial refrigeration systems
Gas........................................ Ammonia, NH
3
, R-717
Measuring Range................. 25 to 10,000 ppm
Detector Type....................... Infrared, Non-Dispersive
Coverage............................... Single zone
Monitoring Distance............ Up to 50 ft (15.2 m) maximum gas-sample line length
Front Panel .......................... 3 Indicator lights:
MONITOR ON – Green light ON when the unit is operating normally,
or flashing during warm-up
SYSTEM FAULT – Yellow light ON when there is a system fault
ALARM – Red light ON when the gas level is above an alarm setting
Alarms.................................. Four SPDT relays are provided (rated 3 A, 240 VAC):
three assigned to ppm level alarms – one assigned to system faults
Internal audible alarm programmable for any of the following conditions:
OFF, Any Alarm, System Fault, Leak Alarm, Spill Alarm, Evacuation Alarm,
Monitor Stopped
Sensitivity ............................ 1 ppm
Accuracy............................... ±10 ppm from 25 to 100 ppm, or ±10% of reading from 100 to 10,000 ppm
Response Time/Flow Rate... Dependent on gas-sample line length; 0.25" OD x 0.17" ID tubing:
Gas-Sample Line
Feet (Meters)
Response Time
Seconds
Flow Rate
ml/min
0 (0) 9 675
10 (3.0) 13 664
20 (6.1) 17 653
30 (9.1) 22 642
40 (12.2) 26 631
50 (15.2) 30 620
Warm-up Time..................... 15 minutes
Temperature Drift............... ±0.8% of reading per degrees C
System Noise ....................... Less than 40dB(A) at 10 ft (3 m)
Conditioned Signal .............. 4−20 mA current loop
Power Safety Mode.............. Fully automatic system reset; all programmed parameters retained
Operating Temperature ...... 32 to 122°F (0 to 50°C)
Storage Temperature .......... −4 to 122°F (−20 to 50°C)
Ambient Humidity............... 5 to 90% RH (non-condensing)
Altitude Limit...................... 6,562 ft (2,000 m)
AC Power.............................. 100 to 240 VAC, 50/60 Hz
Power Consumption ............ 15 Watts
Size/Weight .......................... 7.4"H x 15"W x 3.3"D / 5 lbs.
Certification ......................... UL 61010A-1; CAN/CSA 22.2 No. 1010-1B:1997;
CE Mark (see inside front cover)
Warranty.............................. 2 Years from date of shipment