KCO-NO2 User’s Manual
90-0201-01
Kele • 3300 Brother Blvd. • Memphis, TN 38133
Page: 16
WWW.KELE.COM
8 Disclaimers
8.1 Inspection and Maintenance
In order to maintain the specified accuracy this device, both its sensors must be calibrated at least
every 6 months. During calibration the sensitivity of the sensor is compared to its sensitivity during
initial factory calibration. If the sensitivity has fallen below the manufacturer’s specification, the
sensor has reached the end of its operating life and must be replaced. Contact Kele for a calibrated
replacement module.
In harsh environments a sensor may fail prematurely. During normal operation the sensor is
regularly tested to detect common failures. If a failure is detected, the front panel status LED for
that sensor will blink red and its concentration-reporting analog output will stay at 20 mA until the
sensor is replaced.
8.2 Life Safety
This unit is not designed, certified, sold or authorized for use in applications
where the failure of this device could be reasonably expected to result in
personal injury or death.
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