Hach LDO sc Model 2 Sensor Benutzerhandbuch Seite 17

• SC200 and SC1000 Controllers—Go to the main menu, then select SENSOR SETUP > [select
instrument] > DIAG/TEST.
2. Select an option.
Option
Sensor information
(or SENSOR INFO)
Serial number
(or SERIAL NUMBER)
Gain correction
(or GAIN CORR)
Offset correction
(or OFFSET CORR)
Phase diagnostics
(or PHASE DIAG)
Amplitude diagnostics
(or AMPL DIAG)
Days remaining to clean
(or DAYS TO CLEAN)
Sensor life
(or SENSOR LIFE)
Service
(or SERVICE)
10.2 Errors
When an error occurs, measurements stop, the measurement screen flashes and all outputs are held
as specified in the controller menu. To show the errors:
• SC4500 Controller—Select the red measurement screen or the small red arrow, or go to the main
menu and select Notifications > Errors.
• SC200 and SC1000 Controllers—Go to the main menu, then select DIAGNOSTICS > [select
instrument] > ERROR LIST.
A list of possible errors is shown in
Error
Red amplitude is too low. (value is below 0.01)
(or RED AMPL LOW)
Or
Blue amplitude is too low. (value is below 0.01)
(or BLUE AMPL LOW)
10.3 Warning list
When a warning occurs, a warning icon flashes and a message is shown on the bottom of the
controller display. A warning does not affect the operation of the relays and outputs. To show the
warnings:
• SC4500 Controller—Select the yellow measurement screen or the small yellow arrow, or go to the
main menu and select Notifications > Warnings.
Description
Shows the software version and driver version installed.
Shows the serial number of the sensor.
Adjusts the calibration gain (slope) value (0.50 to 1.5).
Adjusts the calibration offset value (–3.00 to +3.00).
Shows the phase for total, red and blue wavelengths. Updates once per second.
Shows the amplitude for red and blue wavelengths. Updates once per second.
Shows the number of days until the next scheduled manual cleaning.
Shows the number of days until the next scheduled sensor cap replacement.
For Service use only
Table 3.
Table 3 Error messages
Possible cause
The sensor cap is not
installed, or is not installed
correctly.
The light path is blocked in
the sensor cap.
The sensor is not operating
correctly.
Resolution
Remove the sensor cap and
install it again.
Inspect the inside of the sensor
cap and lens.
Make sure that the LED is
flashing. Contact the
manufacturer.
English 17