Cleaning And Decontamination; Troubleshooting; Replacement Parts And Accessories - Hach 9586sc Oxygen Manuel D'utilisation De Base

Cleaning and decontamination

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.

Troubleshooting

Warning list
A warning icon consists of an exclamation point within a triangle. Warning icons appear on the right
of the main display below the measurement value. A warning does not affect the operation of menus,
relays and outputs. To view warnings, push the menu key and select DIAGNOSTICS. Then select
the device to view any problems associated with that device. The warning icon will no longer be
displayed once the problem has been corrected or acknowledged.
A list of possible warnings is shown in
Warning
O2 SCAVENGER TOO
HIGH
O2 SCAVENGER TOO LOW
TEMP TOO HIGH
TEMP TOO LOW
CURRENT TOO HIGH
CURRENT TOO LOW
CAL OVERDUE
REPLACE SENSOR
NOT CALIBRATED
CAL IN PROGRESS

Replacement parts and accessories

Refer to the replacement parts and accessories section of the controller documentation for controller
parts and accessories.
22 English
Table
Table 5 Warning list for oxygen scavenger sensors
Description
The measured value is >
10000 ppm
The measured value is < 0 ppm
The measured temperature is >
50 °C
The measured temperature is <
0 °C
The measured current > 200 mA
The measured current < -0.5 mA Calibrate or replace the sensor.
The Cal Reminder time has
expired
The sensor has been in
operation > 365 days
The sensor has not been
calibrated
A calibration was started but not
completed
D A N G E R
5.
Resolution
Make sure that the oxygen scavenger
(hydrazine or carbohydrazide) level in the
process water is within the operating limits of
the sensor. Calibrate or replace the sensor.
Calibrate or replace the sensor.
Reduce sample temperature.
Increase sample temperature.
Make sure that the oxygen scavenger
(hydrazine or carbohydrazide) level in the
process water is within the operating limits of
the sensor. Calibrate or replace the sensor.
Calibrate the sensor.
Replace the sensor cartridge and calibrate the
sensor. If the calibration result is pass, reset
the membrane days in the DIAG/TEST menu.
Calibrate the sensor.
Return to calibration.