Troubleshooting; Replacement Parts And Accessories - Hach 8362 sc Manual Del Usuario

Troubleshooting

Problem
The calibration is not
accepted.
The readings are irregular.
The response is slow.
The pH reading changes
continuously.

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.
Calibration solutions
Description
4 pH solution, NIST
7 pH solution, NIST
10 pH solution, NIST
ORP reference solution, 200 mV
ORP reference solution, 600 mV
Replacement parts
Description
Fitting, ¼ OD, 1/8 NPT, male connector
Fitting, ¼ OD, ¼ NPT, bulkhead union
Flowmeter
12 English
Possible cause
The measuring or reference
electrode is defective.
There is a problem with the wiring
to the controller.
The controller is defective.
An air bubble is caught at the end
of the electrode.
The electrode does not have a
good ground connection.
The glass bulb is defective.
There is interference from a
streaming potential.
The sample is cold and/or of low
ionic strength.
The electrode was not prepared
sufficiently.
W A R N I N G
Solution
Replace the defective electrode.
Examine the wiring from the electrode to the
controller. Make sure that there is a good
connection to the metal wires.
Replace the controller.
Adjust the electrode position so that air
bubbles do not get caught below the
electrode.
Refer to Connect the protective earth ground
on page 6.
Replace the electrode.
Connect a protective earth ground to the
solution near the electrode. A solution ground
is most important in high purity water.
Increase the temperature of the sample.
Soak a new or dry electrode for a minimum
of 10 hours in the process sample, then
calibrate the electrode.
Quantity
500 mL
500 mL
500 mL
500 mL 25M2A1001-115
500 mL 25M2A1002-115
Item no.
2283449
2283549
2283649
Item no.
6178800
6178600
4598700