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Green light on:Dual power supply
Red light on：Single power supply
3.1.6 Function Switch
Press the button to show the working condition in turn.
3.1.6.1 Model
Display the machine model NHNFA50U-B.
3.1.6.2 Input Power
Display the input power of this machine（dB）.
3.1.6.3 Output Power
Display the output power of this machine（dB）.
3.1.6.4 Bias Current
The bias current of the laser is the main working parameter of the laser. If there are
more than one pump laser, the board will display the working current of BIAS 1, BIAS2,
BIAS3, BIAS4 in turn. The red light will shine to warn when the parameter comes out of
the fixed value.
3.1.6.5 Temp
The laser works between the temperature 20℃ and 30℃. If there are more than one
pump laser, the board will display the working temperature of Temp 1, Temp2, Temp3,
Temp4 in turn. The red light will shine to warn when the parameter comes out of the fixed
value.
3.1.6.6 TEC CURR Current
showing the working current(mA) of heating or cooling when the standard temp is 25℃ in
order to protect the laser.If the working temp is less than or greater than
25℃,thermoelectric refrigeration device is automatically placed in a heating or cooling
state ,like the air-condition.If there are more than one pump laser, the board will display
the working current of HEATING1、HEATING2 、HEATING3、HEATING4 in turn.
3.1.6.7 Working Mode Auto
Display the actual voltage,product number,production date.
3.1.6.8 Setting Info
Press the function button to show the output power setting and the blinking cursor, press
▼ or ▲ to change suitable optical power,then is successful when you enter key
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User's manual
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