Troubleshooting; General Troubleshooting - Hach AS950 Grundlegende Installation Und Wartung

Figure 15 Distributor assembly
1 Tube extension
2 Nozzle
3 Distributor arm
Replace the power supply or battery
Refer to Connect the sampler to power

Troubleshooting

General troubleshooting

Table 2 shows causes and corrective actions for several common problems.
Problem
No instrument power with AC
No instrument power with DC
The battery life is short
Sampler does not have
sufficient lift.
4 Distributor arm lengths:
152.4 mm (6.0 in.), 177.8 mm
(7.0 in.) or 190.8 mm (7.51 in.)
5 Distributor motor
6 Shaft
on page 13 to replace the power supply or battery.
Table 2 General troubleshooting
Possible cause
Problem with the main power
source.
Defective controller.
Battery is not charged.
Battery does not hold the
charge.
Defective controller.
Insufficient voltage.
Battery power drains quickly.
Strainer is not fully submerged.
Intake tube has a leak.
Pump tube is worn.
Pump roller assembly is worn.
7 Distributor tube
Solution
Examine the AC power at the electrical
outlet.
Contact technical support.
Replace the battery.
Replace the battery or use an AC power
cord.
Contact technical support.
Make sure that the lead-acid battery holds
12.6 V to 13.4 V when fully charged.
Replace the battery if necessary.
Charge the battery fully and let the battery
stand for 1 hour. If the voltage decreases
below 12.5 V, replace the battery.
Install the shallow depth strainer.
Replace the intake tube.
Replace the pump tubing
Contact technical support.
on page 19.
English 23