User Manual

www.joinwit.com

Image 5-38

(5)Close Software

Click the “Exit”button is OK.

vi、Troubleshooting

Fault Situations

Possible Cause

Solutions

Weak or no LCD display after

the instrument turning on

① Low battery

① change battery

Unstable source output power

① The internal source connection

port is severely polluted

② If the proper patch cord port is

connected with the source port

① Using the special cotton

swab to clean the port

② Using the correct patch

cord port

Large optical power meter

test error

① The internal source detecting

port is severely polluted

① Using the special cotton

swabs to clean the port

The instrument can’t be

turned on after the USB

adapter connection

① Mini USB cable is damaged

② USB adapter is damaged

① Change Mini USB cable

② Change to 5V USB adapter

Others

please contact the company

after-sales or technicians to

solve

vii、Care and Maintenance

1. Keep the sensor port clean from pollution; not use dirty and non-standard

fiber-optic adapter connector; not to be inserted to the badly-polished port. Otherwise

the sensor port can be damaged and the whole system performance will be affected.

2. Insist on the use of one fiber-optic adapter as possible.

3. Once the instrument is not used, cover it with dust cap to keep the port clean