KCO-NO2 User’s Manual
90-0201-01
Kele • 3300 Brother Blvd. • Memphis, TN 38133
Page: 4
WWW.KELE.COM
1 Specifications
Mechanical
Chassis Construction
Robust 18 Ga. Grey powder-coated steel. Hinged & Pad-lockable, or
screw-on cover style available.
Weight
2.0 Lbs.
Operating Temperature
-20 to 50°C (-4 to 122°F)
Operating Humidity
15 – 90 %RH
Storage Temperature
0 to 20°C (32 to 68°F) to minimize sensor degradation.
Case Dimensions (H x W x D)
6.4” x 5.9” x 2.4” (163.5 x 150.8 x 60.7 mm)
Sensor Vents
Natural Ventilation through 18 0.1” diameter (2.54 mm) vents.
Recommended calibration cap diameter
20.5 mm (.807”)
External Indicators
Separate tri-color LEDs indicates operational status of each senor.
Knockouts
4 trade ½” knockouts (1 per side)
Electrical
Operating Power Voltage
14 to 30 VAC (RMS) or 15 to 45 VDC
polarity independent, isolated power supply
Power Consumption
< 5W
Control Relays
Two separate SPDT relays for warning and alarm outputs.
UL rated: 10 Amps max at 277 VAC (RMS) or 30 VDC.
Concentration Reporting Outputs
Two powered 4–20 mA current loop outputs (one for each sensor).
4 mA output => 0 ppm, • 20 mA => full scale output.
Maximum loop resistance: 510Ω
Termination
Pluggable screw-terminals for use with 12 AWG or thinner wire.
Stranded wire recommend for 18 AWG or heavier wire.
Carbon Monoxide Sensor (CO)
Sensor Type
Electrochemical
Measurement Range
0 – 200 ppm
Analog Output Range
4mA to 20mA (corresponds to 0 to 200 ppm)
Accuracy
±5% of Full Scale (typical)
Calibration Interval
6 Months; factory calibrated when new
Sensor Life
2 Year typical
Calibrated Field-Replaceable Sensor
KMOD-CO
Nitrogen Dioxide (NO
2
)
Sensor Type
Electrochemical
Measurement Range
0 –10 ppm
Maximum Permissible Exposure
150 ppm
Analog Output Range
4mA to 20mA (corresponds to 0 to 10ppm)
Accuracy
± 0.75 ppm (typical)
Calibration Interval
6 Months; factory calibrated when new
Sensor Life
2 Year typical
Calibrated Field-Replaceable Sensor
KMOD-NO2
