Sensor Type
Electrochemical
Measuring Range
0 to 100 parts per million (ppm)
Repeatability
± 2 % Full scale
Zero Drift
< 5% per year
Response Time
T90 < 30 seconds with 100% FS gas applied
Classification
Class I, division 1, Groups B,C &D
Operating Temperature
-4°F to +122°F (-20°C to +50°C)
Operating Humidity
15% to 90% RH, non-condensing
Mechanical Specifications
Length: 7 inches (178 mm)
Width: 5 inches (127 mm)
Height: 4.5 inches (114 mm)
Display
Bright 3 digit LED display
Status Indicators
Amber and Red alarm LED indicators for Low,
High and Fault Alarms.
Three-digit display for gas concentration,
calibration mode and sensor fault codes.
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Approvals
CSA Approved
CSA Standard C22.2 No 30-M1985 &
C22.2 No 142-M1987
Input Power
14-28 VDC. 24 VDC nominal
Power Consumption
65mA @ 24 VDC
Alarm Relays
Fully programmable. 0 to Full scale range
of the sensor. Latching or Non-Latching.
Relay Ratings
SPDT Form "C" type Relay contacts
0.5 Amp @ 125 VAC or 2 Amps 30 VDC
Analog Output
Linear 4-20mA (300 Ohms max. load)
2.0 mA - Calibration mode
< 1.0 mA - Sensor malfunction
Calibration
Non-Intrusive activated by internal magnetic
switch
Cable Requirement
3 wire shielded cable. Max loop resistance of
20 Ohms @ 24 VDC nominal
Cable Entry Hub
¾" NPT Female
Other Toxic Gas sensors available
Call factory or visit www.pem-tech.com
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