
Shanghai Govo Telecom Co.,Ltd
Contact :Ms Veronica Zhao Skype ID:govochina E-MAIL: veronica@govochina.cn
Company Address: Room 616,North Building,Fortune 108 Square, 1839# Qixin Road, Shanghai, 201101,China
Website: www.gwfiber.com MOBILE:(86)13788913267 TEL:86-21-60712325-807 FAX:86-21-60712315
Press the key to select output wavelength, the value will appear in LCD.
Switch the modulation frequency of light source between CW, 270Hz, 1000Hz and 2000Hz.
Press this key to turn on/off the backlight.
Operating Instructions
1. Connect the optical fibre connector to output port.
2. Press ON/OFF, the working indicator turns on.
3. Press WAVE key to adjust modulation
4. frequency of light source.
5. Press MODE key to adjust modulation
6. frequency of light source.
7. All status indicators of portable stabilized light source will appear in LCD. when the battery is going to run
out, the power volume indicator will blink once a second, the device will automatically power off after the
indicator blinks for ten times; if so, you can insert the device into supplied charger for charging (see the
Figure on the right).
8. Power Off: Press ON/OFF on the panel, the indicator turns in dark, information disappears from LCD, the
device is powered off.
Precautions
1. Don’t watch the output port with eyes while it is running, the laser will hurt your eyes.
2. If you are not going to use the tester for long time, cover the dust-proof cap immediately to
keep the end clean, don’t expose it in air for long time, otherwise dust may gather polluting the
output end.
3. After the stabilized light source works for a time, dirt or dust may gather at output end reducing
output optical power, if so, user can gently wipe the surface using cotton swab dipped with alcohol,
then remove the contaminants with dry cotton swab. If end still look dirty after doing so, please
contact us.
4. If you are not going to use the tester for long time, please take out the battery, so as to prolong
life of battery.
5. For any other fault, please immediately contact our technician, don’t open the cabinet of the
device to repair it by yourself, otherwise more serious problems may occur. We will not repair any
product that have been disassembled by user himself.
Troubleshooting