9 Maintenance
Our sales and customer service representatives are always at your disposal for questions regarding
applications, calibration, repair, and solutions to specific problems. Please contact your local sales
representative if you need assistance. In many cases, problems can be solved over the telephone. If
you need to return equipment for servicing, calibration, or repair, please contact our Service
Department before shipping. Phone numbers are listed at the beginning of this document.
9.1 Troubleshooting
Symptom
Erroneous Temperature
LCD Backlight Red and
Buzzer Sounds
Battery Symbol Blank
No Trigger/Button
Response
No LCD Display
No LCD Backlight
No Scope Red-point
No Laser
Unable to Charge Battery
Via Cable
Unable to communicate
with PC Via Cable
Unable to Communicate
with iPhone Via Bluetooth
3i Plus
info@Raytek-Direct.com
Probable Cause
Wrong Emissivity
Wrong Background Temperature
Compensation
Wrong Transmittance
Inaccurate Field of view
Obstructed Field of View
Dirty Lens
Nose Too Hot
Wrong High Temperature Alarm
Wrong Low Temperature Alarm
Insufficient Battery Level
Unload Battery, Disconnected USB Cable
Trigger/Button Damage
Battery Level is too low
Invalid Battery
LCD damage
LCD damage
Scope damage
Ambient Temperature exceeds Operation
Temperature range
Laser damage
Wrong Cable
Battery/Cable damage
USB interface
Wrong Cable
Wrong PC software
USB interface damage
Wrong iPhone software
Bluetooth damage
Table 5: Troubleshooting
Rev. A1 Jan 2015
Maintenance
Solution
Correct Emissivity Setting
Correct Background Temperature
Compensation Setting
Correct Transmittance Setting
Adjust Field of View via Laser Indication or
Scope Red Point
Remove Obstruction
Clean Lens
Move the instrument away from the hot
temperature source
Correct High Temperature Alarm Setting
Correct Low Temperature Alarm Setting
Charge Battery
Reload Battery
Contact After-Sale Service
Charge Battery
Change to a new Battery
Contact Service
Contact Service
Contact Service
Use it in the operation temperature range
Contact Service
Use the special USB charge cable
Change to a new Battery/Cable
Contact Service
Use the special USB cable
Reinstall the latest PC software
Contact Service
Reinstall the latest iPhone App
Contact Service
1.888.475.5235
53
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