ALLTRADE ALK-502 Optical Multi Meter Instructions

ALLTRADE ALK-502 Optical Multi Meter

VFL and LED flashlight

After power on, long-press the* /VFL key to turn on the VFL, short press to flash, and turn it off. Press the power button to control the flashlight turn on and off.

Calibration instructions

At the same time, press the LED+ REF key to clear the user’s cali­bration value, and the screen will fully display “-” to restore the de­fault value; press the LED+VFL to enter the calibration mode, and “Cal” will be displayed in the upper left corner of the screen. The following operations are only valid in the calibration mode.

Common Troubleshooting Solutions

replace batteries
Abnormal optical power values| Joint failure, dirty| Reconnect Connector and Clean Sensor

Specifications

Standard configuration

OPM host, OPM &VFL all-in-one machine (optional), certificate, op­eration manual, two AAA batteries, lithium batteries (optional), data line(optional), universal joint, packaging carton
Note: the rated charging voltage of the lithium battery is SV/IA.

Appearance and Ports

1.  port: connect to the fiber, test the optical power
2. VFL port: connect to the fiber, find the fault point in a short distance
3. LED light flashlight lighting
4. Dust cover: cover to protect the optical port when no testing
5. Display screen: display test results and other information
6. Indicators: cable tracking light
7. Power key, turn on/off automatic shutdown function
8. /VFL: turn on/off backlight, turn on/offVFL
9. RJ45/dB: turn on/off RJ45 sequence, switch absolute power display
10. RJ45 network port: RJ45 sequence/tracking test
11. PRESS button: press to take out the RJ45 sequence remote tester
12. Remote tester: RJ45 cable sequence test
13. Ji: switch the test wavelength of the power meter
14. LED key: tum on/off the flashlight
15. REF key; set the current power as the reference power
16. Type C port: connect the power bank to supply power or charge

Power on/off and automatic shutdown

After pressing 6 briefly, the meter will tum on and start the automatic shutdown function. The default au­tomatic shutdown time is 10 min­utes. If you want to cancel the func­tion, press and hold the power key for two seconds, and the 6 icon disappears, the automatic shutdown will be canceled.

Set reference optical power

After power on, enter the interface of OPM, press REF to set the current power as the reference power, and switch the relative optical power test (insertion loss test) and absolute power test. In the relative power test mode, the insertion loss (dB) and the reference value are displayed simulta­neously. Short press “dB” to switch linear power and absolute power display. The units of linear power, ab­solute power, and relative power are W, dBm, and dB respectively.

Switch the wavelength

In the interface of OPM, short press the 11. key to switch the measurement wavelength. Ten different wave­lengths can be selected: 1310nm, 1550nm, 1577nm, 1490nm, 1625nm, 1650nm, 850nm, 1270nm, 1300nm, and 980nm. In order to ensure the accuracy of the test, the selected wavelength must be consistent with the measured optical signal.
RJ45 cable sequence and analog cable tracking

In the test interface of OPM, long-press the dB key to display the word “RJ45” on the screen. At this time, enter the RJ45 cable sequence test, connect one end of the network cable to the RJ45 port at the bottom, and connect the other end to the remote tester. Short press the dB key to exit. Long press the dB key again,
displays on the upper left corner of the screen, enter the cable tracking mode, and short press the dB key to exit.

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