Specifications

Monoxor



Plus Manual Troubleshooting

0019-9370 Rev 0 48

Section 6. Troubleshooting

6.1. Error and Warning Messages

Message Description

Low Sensor CO CO sensor output was low but still usable. Sensor may need to be

replaced in the near future.

Low Battery Battery voltage is low. Replace the batteries.

Applied Value

High/Low

An attempt was made to calibrate a sensor outside its range—

either above (High) or below (Low) the acceptable range.

Warm-up

Sensor Error

• CO sensor was not zeroed at warm-up because of high output.

Run instrument on fresh air then restart instrument to re-zero

sensor. If the message persists, the CO sensor may need to be

replaced.

• Temperature sensors are measuring temperature outside the

range of -4° to 212° F at warm-up. Make sure that the

thermocouple is sampling ambient room air within the

temperature range at warm-up.

• Messages will indicate which sensors are in error.

Set Clock Time and date values need to be set in the instrument.

X X X Occurs in the number fields of sensors that have achieved over-

range condition.

* * * Occurs in the number fields of sensors. Replaces in-error sensor

values and any calculated values that depend on those sensor

values.

- - - Occurs in the number fields of sensors and indicates that values

were not calculated.

Beeping Slow beep frequency: Replace batteries warning.

Fast beep frequency: CO alarm is active and set.

NOTE: If a particular sensor is in error during warm-up, the

instrument automatically displays the error. The instrument

continues to operate with the sensor in error, however

information dependent on the sensor in error is not displayed.

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