Error List; Warning List - Hach 9181600 Manual De Usuario

Option
RST SENSORS
CALIBRATION

Error list

Errors may occur for various reasons. The sensor reading on the measurement screen flashes. All
outputs are held when specified in the controller menu. To show the sensor errors, push the MENU
key and select Sensor Diag, Error List. A list of possible errors is shown below.
Error Description
CL CAL REQD A chlorine calibration and/or pH calibration is
required.
The chlorine and/or pH measurement has
changed enough to cause a Cal Watch alarm
to occur. Refer to the chlorine sensor manual
for more information.
PH TOO LOW The pH value is less than 0 pH.
PH TOO HIGH The pH value is more than 14 pH.
PH SLOPE FAIL The slope is outside of the -45 to -65 mV/pH
range.
PH OFFSET FAIL The offset is outside of ±60 mV.
TEMP TOO LOW The temperature is less than 0 °C.
TEMP TOO HIGH The temperature is more than 100 °C.
TEMP FAIL The offset is higher than 5.0 °C or lower than
-5.0 °C.

Warning list

A warning does not affect the operation of menus, relays and outputs. A warning icon flashes and a
message is shown on the bottom of the measurement screen. To show the sensor warnings, push
the MENU key and select Sensor Diag, Warning List. A list of possible warnings is shown below.
Warning Description
CL CAL RECD A chlorine and/or pH calibration is recommended.
The chlorine and/or pH measurement has changed
enough to cause a Cal Watch warning alarm to occur.
Refer to the sensor manuals for more information.
PH CAL RECD A pH calibration is recommended.
pH calibration data is not available (sensor with default
calibration data).
TEMP CAL RECD A temperature calibration is recommended.
Temperature calibration data is not available (sensor with
default calibration data).
Table 2 DIAG/TEST menu (continued)
Description
Resets the sensor days and calibration days to default. Requires passcode.
Shows the slope and offset values for chlorine and pH. Shows the offset value for
the temperature.
Table 3 Error list for the sensor
Table 4 Warning list for the sensor
Resolution
Calibrate the chlorine sensor and/or pH
sensor.
Calibrate or replace the pH sensor.
Clean the pH sensor, then repeat the
calibration with a fresh buffer or sample, or
replace the sensor.
Clean the pH sensor and then repeat the
calibration with a fresh buffer or sample, or
replace the sensor.
Calibrate the temperature or replace the pH
sensor.
Calibrate the temperature or replace the pH
sensor.
Resolution
Calibrate the chlorine sensor
and/or pH sensor.
Calibrate the pH sensor.
Calibrate the temperature.
English 17