LumaSense Technologies ISR 6 Advanced - Manual (Page 46)

ISR 6 Advanced Manual Troubleshooting · 46
Symptom Probable Cause Comments
Temperature readings
are too high Targets hotter than expected.
(This often happens with first
time infrared Pyrometer users). Verify target temperature with
contact type method.
(Thermocouples may not
accurately determine surface
temperature due to “heat sink”
effect).
Incorrect slope adjustments. See sections 6.3 and 5.2.4
Target size is too small See sections 3.4, 3.5, and 5.2.11
The measurement is influenced
by reflections of hot machine
parts Use mechanical accessories to
avoid the influence of the
interfering radiation.
If target emissivity is less than 1,
reflections from nearby hot
objects will influence readings.
Block reflection paths to see if
readings drop to expected
temperature.
Incorrect spectral response for
application. ISR 6 may be
“seeing” through target. See Technicial Specifications
Consult LumaSense for analysis.
Electrical noise in lead wires
caused by intense magnetic
fields and/or improper selection
of interconnecting cable and/or
cable run in same conduit as AC
power lines.
See section 3.1
Lens or window clouding up. Increase or decrease air purge
rate and/or investigate other
cause.
Target leaving field of view or
ISR 6 mount slipping.
Faulty ISR 6. Contact LumaSense. See
Section 2.5
Improper grounding of cable
shield and/or ISR 6 housing (or
cooling jacket).
ISR 6 mounting not secure.