DV-8000 USER’S MANUAL
8
In case the point-to–point measurement shows a wavelength different from the peak
wavelength of the didymium filter (maximum permissible error is ±2nm), remove the
wavelength knob, loosen the three positioning screws on the wavelength dial, adjust
the dial pointer to the characteristic absorption peak wavelength value, and tighten the
screws
。
①
②
③
3. Troubleshooting
Troubles
Causes
Remedies
1. No functioning after
power on.
1.Powersupply not connected
2.Power fuse melted
3.Loose
contact
of
power
switch.
1. Check power line.
2. Replace fuse.
3. Replace power switch.
2.Unstable display
1.Insufficient warm-up time
2. Excessive vibration, strong air
current near light source or
strong external light.
3. Unstable voltage.
4. Poor grounding.
1. Ensure 20 mins warm-up
time.
2.Improve
working
conditions
3. Use a Voltage Stabilizer.
4.Check ground connection.
3.Unable to set zero
1.black block in the light path
2.Amplifier failure.
1. Remove the block.
2. Repair amplifier.
4.Unable to set 100%T
1.Tungsten-halogen lamp not lit.
2. Inaccurate light path.
3. Amplifier failure.
1. Check or repair lamp
power circuit.
2. Readjust light path.
3.
Repair
or
replace
amplifier.
5.Concentration
incorrectly calculated
1. Display board out of order.
1. Repair or replace display
board.
