Calex ExTempMini Series Manuale di avvio rapido - Pagina 13
Sfoglia online o scarica il pdf Manuale di avvio rapido per Accessories Calex ExTempMini Series. Calex ExTempMini Series 17. Infrared temperature sensor
Stampa la pagina
IMPORTANT
Be aware of the following when using the sensor:
•
If the sensor is exposed to significant changes in ambient temperature (hot to cold,
or cold to hot), allow 20 minutes for the temperature to stabilise before taking or
recording measurements.
•
Do not operate the sensor or configuration tool near large electromagnetic fields (e.g.
around arc welders, generators or induction heaters). Electromagnetic interference
can cause measurement errors.
•
Wires must be connected only to the appropriate terminals.
•
Do not damage the cable, as this could provide a path for moisture and vapour to
enter the sensor.
•
Do not open the sensor housing. This will damage the sensor and invalidate the
warranty.
MAINTENANCE
Our customer service representatives are available for application assistance, calibration,
repair, and solutions to specific problems. Contact our Service Department before returning
any equipment. In many cases, problems can be solved over the telephone. If the sensor is
not performing as it should, try to match the symptom below to the problem. If the table does
not help, contact us for further advice.
LENS CLEANING
Keep the lens clean and dry at all times. Any foreign matter on the lens would affect
measurement accuracy. Blow off loose particles (if not using the air purge accessory) with an
air 'puffer'.
If dust or condensation continuously forms on the lens, consider fitting an air purge collar.
TROUBLESHOOTING
Symptom
No output
Inaccurate
measured
temperature
Probable Cause
No power to sensor
Target too small for
sensor's field of view
Target is a reflective
metal surface
Field of view
obstruction
Dust or condensation
on lens
Incorrect wire
connections
Output temperature
scale mismatch
Solution
Check power supply and wiring
Ensure the sensor's view is completely filled
by the target. Position the sensor closer to
the target to measure a smaller area.
Ensure the target is at least twice the size of
the given measured spot.
Measure a non-reflective area, or paint or
coat a measurable area of the target to
make it non-reflective
Remove obstruction; ensure sensor has a
clear view of target
Ensure lens is clean and dry. Clean gently
with a soft lens cloth and water. If problem
recurs, consider using an air purge collar.
Check wiring against markings on PCB
at terminal blocks
Re-scale input temperature range on
measurement instrument to match sensor
13