• Two-stage alarming (KCO-R)

• 0-200 ppm 4-20 mA output (KCO-A)

• Microprocessor controlled recalibration (KCO-A)

• Heavy-duty enclosures

• Operating temperature down to -4ºF(-20ºC)

• Low-temperature option available -20ºF (-29ºC)

• Temperature and humidity compensated

Supply Voltage:

KCO-A:24 VAC @ 5 VA ±20% (LT option 30 VA)

KCO-R:24 VAC @ 5 VAC ±20% or 24 VDC @80 mA

LT models (A&R):40 VA

Signal Output (KCO-A):4-20 mA @ 500Ω

Accuracy: ±5% or 5% of reading whichever is greater

Measurement Range:

KCO-A:0-100/200/400 ppm, jumper selectable

KCO-R:0-250 ppm

Sensor Technology:

A:Solid-state metal oxide semiconductor

R:Electrochemical

Sensor Life Expectancy:10 years

Visual Indication:

 :Status Green

 :Fault Red

Warm Up Time:1 minute

Response Time:<35 sec

Time Delay (KCO-A):10 minutes

Relay Output (KCO-R):(2) SPDT 120 VAC, 2A resistive, 30 VDC 2A

Alarm Setpoints (KCO-R):Warning 50 ppm, alarm 100 ppm (reset 5-10 ppm change)

Operating Humidity:5% to 95% noncondensing

Operating Temperature:-13° to 122°F (-25° to 50°C)

Low temp (LT): -20℉ (-29.4℃)

Weight: 2.0 lb (0.9 kg)

Warranty: 1 year