T&L TECHNOLOGY CO., LIMITED
5
test mode
Displays the difference between the current output
power and reference power under
relative test
mode
3. Unit
：
mW
、
uW
、
nW
、
dBm
、
dB.
4. Battery level : I
ndicate the current battery level.
When the icon is blank, it means the power is too low,
please change the batteries.
5.
Auto-off
：
Activate the 10-minute auto off function
6. ON/OFF
7. Wavelength select
8. REF Relative power
：
Press REF for 2 seconds to
start relative test
9. DBm/w:
Absolute power
5. Function Keys
1) ON/OFF
：
press ON/OFF to turn it on. And press it
for 3 seconds to turn it off. Under power-on mode,
press this key shortly to activate or deactivate the
10-minute auto off function. The default setting is
auto-off function ON when start the meter.
Operators can press ON/OFF shortly to close the
auto-off function.
2) dBm/W
：
press dBm/W to enter absolute
measurement mode. Press it repeatly to switch the
display power unit between W and dBm
3)
λ
：
Switch the wavelength from 6 calibrated