Hach Polymetron pH/ORP Manual Del Usuario página 18

Error
Temperature sensor is
missing!
Glass impedance is too
low.
6.5 Warning list
A warning does not affect the operation of menus, relays and outputs. The screen changes to an
amber color. The diagnostics bar shows the warning. Push on the diagnostic bar to show the errors
and warnings. As an alternative, push the main menu icon, then select Notifications > Warnings.
A list of possible warnings is shown in
Warning
pH is too high.
pH is too low.
ORP is too high.
ORP is too low.
Offset is too high.
Offset is too low.
Slope is too high.
Slope is too low.
Temperature is too high.
Temperature is too low.
Temperature is out of
range!
Calibration is overdue.
The device was not
calibrated.
Flash failure
Active impedance is too
high.
Active impedance is too
low.
Reference impedance is
too high.
Reference impedance is
too low.
18 English
Table 3 Error list (continued)
Description
The temperature sensor is missing.
The glass bulb is broken or reached
end of life.
Table 4.
Table 4 Warning list
Description
The measured pH is > 13.
The measured pH is < 1.
The measured ORP value is > 2100 mV.
The measured ORP value is < –2100 mV.
The offset is > 8 (pH) or 200 mV (ORP).
The offset is < 6 (pH) or –200 mV (ORP).
The slope is > 60 (pH)/1.3 (ORP).
The slope is < 54 (pH)/0.7 (ORP).
The measured temperature is > 100 °C.
The measured temperature is < 0 °C.
The measured temperature is > 100 °C or
< 0 °C.
The Cal Reminder time has expired.
The sensor has not been calibrated.
The external flash memory failed.
The active electrode impedance is >
800 MΩ.
The active electrode impedance is <
15 MΩ.
The reference electrode impedance is >
800 MΩ.
The reference electrode impedance is <
15 MΩ.
Resolution
Examine the wiring for the temperature
sensor. Make sure that the correct
temperature element is selected.
Replace the sensor. Contact technical
support.
Resolution
Calibrate or replace the sensor.
Calibrate or replace the sensor.
Follow the maintenance procedures for
the sensor and then repeat the
calibration.
Repeat the calibration with a fresh
buffer or sample.
Clean the sensor, then repeat the
calibration.
Make sure the right temperature
element is used.
Calibrate the sensor.
Calibrate the sensor.
Contact technical support.
The sensor is in air. Return the sensor
to the process.
The sensor is damaged or dirty. Contact
technical support.
Buffer leaked or evaporated. Contact
technical support.
The reference electrode is damaged.
Contact technical support.