Maintenance, Service schedule, Cleaning and decontamination – Hach-Lange POLYMETRON 9523 User Manual User Manual
Page 33: Replace the resin
3. Select CAL OPTIONS and push enter.
4. Use the arrow keys to select an option and push enter.
Option
Description
CAL REMINDER Sets a reminder for the next calibration in days, months or years—select the required
delay from the list.
OP ID ON CAL
Includes an operator ID with calibration data—YES or NO (default). The ID is entered
during the calibration.
Maintenance
D A N G E R
Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the document.
Service schedule
The following table shows the recommended service schedule:
Every 3 Months
Every 6 Months
Yearly
As Needed
Validation (check with referenced measure)
X
X
X
X
Calibration (measure)
X
X
Calibration (temperature)
X
Cleaning and decontamination
D A N G E R
Always remove power from the controller before performing maintenance activities.
The analyzer does not normally require any cleaning or decontamination. If needed, clean the
exterior of the instrument with a moist cloth and a mild soap solution. Never use cleaning agents
such as turpentine, acetone or similar products to clean the instrument, including the display and any
accessories.
Replace the resin
C A U T I O N
Chemical exposure hazard. Dispose of chemicals and wastes in accordance with local, regional and
national regulations.
The cartridge of resin can be replaced with a new cartridge, or as an alternative, keep the cartridge
and replace only the resin. In order to take advantage of the full system specifications, we
recommend the use of nuclear grade cationic resin.
1. Stop the sample flow using the sample flow adjustment valve.
2. Replace the cartridge or resin:
on page 9.
. Make sure to add deionized water at regular intervals when new
resin is added to compact the resin.
3. Open the degassing valve.
4. Open the sample flow adjustment valve and ensure everything is watertight and there are no
leaks.
5. Close the degassing valve when the measuring cell is free of air.
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