Hach 9525sc Degas System Manual Del Usuario página 28

Section 8 Troubleshooting
Problem
High temp alarm is active.
The instrument does not accept
temperature settings.
Sample heater is not heating.
Unit is heating but cannot reach
boiling point.
Temperature will not increase to
106 °C.
Temperature meter will not come
on.
Section 9 Replacement parts and accessories
Personal injury hazard. Use of non-approved parts may cause personal injury, damage to the
instrument or equipment malfunction. The replacement parts in this section are approved by the
manufacturer.
Note: Product and Article numbers may vary for some selling regions. Contact the appropriate distributor or refer to
the company website for contact information.
Instruments
Description
Hach 9525sc system
Polymetron 9525sc system
28 English
Possible cause
There is no flow or the flow is less
than 100 ml/minute.
The settings are corrupted.
The fuse is blown.
The heater is defective.
The flow rate is too high.
The heater is defective.
The boiling point of water is
dependant on the atmospheric
pressure.
The fuse is blown.
W A R N I N G
Solution
1. Examine the flow rate. Make sure
that the flow is more than
100 ml/minute.
2. Remove power to the heater,
then set the power switch to on after
the flow is restored.
3. Make sure that the temperature
set point is between 106 and 108 °C
(223 and 226 °F)
1. The correct settings are
programmed at the factory. If issues
continue, make sure that the
settings are correct.
2. If the settings are corrupted, send
the temperature controller back to
the factory.
1. Examine the continuity of the
fuses. Replace a fuse on page 21 if
blown.
2. If fuses continue to blow, the
heater likely has a short and must
be replaced.
Replace the heater on page 22.
Adjust the flow rate between
100 and 150 ml/minute.
Replace the heater on page 22.
The heater increases the
temperature of the sample to the
boiling point of water, based on
local air pressure and temperature.
If there is a constant column of
water vapor from the steam vent,
the unit is operating correctly.
Examine the continuity of the fuses.
Replace a fuse on page 21 if blown.
Item no.
9525.99.0010
9525.99.0020