Detcon Model DM-602IS-NH3 sensor is designed to detect and continuously monitor NH3 in air over the range 0-100 ppm.
The sensor assembly consists of an electrochemical fuel cell mounted in an Intrinsically Safe stainless steel and ABS plastic housing that includes a splashguard with integral cal port, a signal conditioning control transmitter circuit, a base connector board and an explosion proof junction box.
The Intrinsically Safe sensor housing design allows direct contact of the target gas to the electrochemical sensor, thus maximizing response time, detectability and repeatability.
And because the Intrinsically Safe housing design does not use a stainless steel flame arrestor, it eliminates inaccurate readings due to target gas absorption.
CSA and UL Approved: Class 1, Div. 1, Groups B, C, & D
Outputs: 4-20 mA, RS-485 Modbus™, 3 relays (2 alarm, 1 fault)
Sensor status and parameters accessible via RS-485 Modbus™
Simple menu driven calibration - takes less than 3 minutes
Backlit LCD, and LED indicators for Fault, and Cal status
Universal plug-in transmitter
Intrinsically Safe Sensor Housing
Plug-in field-replaceable transmitter
Electrochemical plug-in sensor
Sensor Type |
Electrochemical Fuel Cell |
Measurement Range |
0-100 ppm Ammonia Other ranges available |
Repeatability |
±2% FS |
Response/Clearing Time |
T90 <90 seconds |
Span Drift |
<2% signal loss per month |
Operating Temperature Range |
-40°C to +50°C; -40°F to +122°F |
Operating Humidity Range |
15-90% RH non-condensing |
Output |
Linear 4-20 mA DC RS-485 Modbus™ 3 Relays (alarm 1, 2, fault, contacts 5 amp) |