TESTO 300 - Change CO, CO H2 and no Sensor

15 Maintenance
100
5
Close the measuring instrument.
After replacing an O2 sensor, wait for an acclimatization time of 15 min
to elapse before using the instrument.
When replacing an O2 sensor and when there is an interruption of the
power supply for more than 10 hours, we recommend an
acclimatization time of 1 hour for compliance with measuring accuracy.
15.8.1 Change CO, CO H2 and NO sensor
CAUTION
Acid in the sensors.
May cause chemical burns.
- Do not open the sensors.
- Always wear gloves when changing a sensor.
Eye contact: Rinse the affected eye thoroughly under running water for 10
minutes, keeping the eyelids wide open and protecting the unaffected eye.
Remove contact lenses wherever possible.
✓
Measuring instrument is open, see Section Open measuring
instrument.
1
Remove faulty sensor and hose
connections from the slot.
2
Remove hose connections from the
faulty sensor/bridge.