Calex PMBXCF Manual del usuario - Página 9
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example, it is in the same room). In this case, Reflected Energy Compensation should remain
Disabled for an accurate measurement.
However, if the sensor is positioned outside an oven or furnace, with the target object inside,
the reflection of the hot furnace interior can affect the measurement. In this case, Reflected
Energy Compensation should be turned ON and Reflected Temperature should be set to the
temperature inside the oven or furnace.
If Reflected Temperature is being updated continuously by the Modbus Master, use address
0x16 instead of 0x06 to preserve the sensor's non-volatile memory.
Average Period
To slow the response time of the sensor, or to reduce fluctuations or noise on the
measurement, enter an averaging period here.
Hold Mode / Hold Period
If required, hold processing can be applied by setting Hold Mode to "Peak" or "Valley" and
setting the hold period. This is useful if the temperature reading is interrupted by gaps
between moving objects (e.g. on a conveyor), or by an obstruction.
LENS CLEANING
Keep the lens clean 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'.
TROUBLESHOOTING
Symptom
No output
Inaccurate measured
temperature
Communication error
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 Modbus Slave
Address
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.
Use a lower emissivity setting, or
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 the Modbus Slave Address
of the sensor and ensure it is set
correctly in the Modbus Master
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