Hope Electronics Technology
Manual
Edition
V2.0
50
5dgt
Temperature measurement
Range
Maximum display value
Resolution
Accuracy
-10to60
℃
60.0
℃
0.1
℃
±1
℃
Chapter 8 Maintenance and Service
8.1 Repair, Inspection, Cleaning
Customers are not allowed to modify, disassemble, or repair the instrument. Doing so may cause
fire, electric shock, or injury.
When the instrument is being repaired, batteries and parts should be removed to prevent
damage during transportation. Add gasket material to prevent the instrument from moving in the
box. Try to clarify in detail the problems encountered. The company is not responsible for
damages that occur during transportation.
Before Returning for Repair
If the instrument is not operating correctly, check the following:
Error
Cause and Solution
Nothing is displayed on the
screen even after the key POWER
is pressed.
The battery is drained.
→Charge the battery
The batteries are inserted incorrectly.
→C Reinsert the batteries correctly
Incorrect
measurement
values are displayed
[−−−−] is displayed on the
screen
[OF ] is displayed on the
screen
The test lead is not connected correctly.
→Connect the test lead correctly.
The test lead is disconnected.
→Replace with a new test lead.
Zero adjustment is not performed correctly.
→Perform zero adjustment correctly
An appropriate range is not selected.
→Select the appropriate range using the range key.
