INST.No.INE-378-P9CE
- 41 -
7. Maintenance and check
7.1 Periodical checking : Check the followings periodically
or if required.
•Connections and wirings: Check all connections and wirings.
7.2 Trouble shooting
7.2.1 Measuring value not displayed or displayed lower
Checking item
Countermeasure
The power lamp is not lit.
Turn on the power supply.
The optical connector is not connected
firmly.
The optical fiber is disconnected.
Connect the optical connector firmly.
For the disconnection of the optical fiber, replace it.
The power voltage is not in the allowable
range.
Supply the power with the correct voltage.
The measured temperature is lower than the
minimum value of the measuring range.
It is necessary to use a thermometer with the measuring
range covering the measured temperature.
The emissivity value (emissivity ratio
value) programmed is too high.
Program the correct value by referring to
[6.4.1 Emissivity programming].
The top of optical fiber is dirty or cracked.
When the optical fiber is dirty, wipe off dirt with a cloth
wetted with alcohol. Check if the optical fiber is
cracked visually. If cracked, replace it.
The view field is interfered.
Make the view field not interfered by referring to
[3.2 Fiber optics assembly].
The optical fiber is bent smaller than the
allowable bending radius.
Bend the optical fiber bigger than R100mm.
7.2.2 Measuring value displayed higher
Checking items
Countermeasure
The measured temperature is higher than the
maximum value of the measuring range.
It is necessary to use a thermometer with the measuring
range covering the measured temperature.
The emissivity value (emissivity ratio value)
programmed is too low.
Program the correct value by referring to
[6.4.1 Emissivity programming].
Warning
1. Please do not disassemble this device, in the case of using for IR-FA
L
or
IR-FAQ
L (Option : Laser targeting).
2. Please never peek into a/the laser light beam, because there is the fear that gives an
obstacle to the eye.
Caution
When connecting the optical connectors of the fiber optics to the optical connectors of
the thermometer and the lens assembly, make sure to turn them with your hand. (Don’t
turn them by using a tool like as pliers.)
!