Hach-Lange WTOS P-RTC - Manual (Page 39)

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Section 6 Troubleshooting
6.1 Error messages
The sc controller displays the possible sensor errors.
6.2 Warnings
The sc controller displays the possible warning messages from the sensor.
6.3 Wear parts
Displayed errors Cause Resolution
RTC MISSING
No communication between RTC and RTC
communication card
Supply RTC with voltage
Test connection cable
Reset the sc1000 and the RTC (switch so it is
completely voltage free and switch back on)
RTC CRC
Interrupted communication between RTC and
RTC communication card
Make sure +/- connections of the connector
cable between RTC and RTC communication
card in the sc1000 are installed correctly.
CHECK CONFIG
The sensor selection of the RTC was deleted
by deleting or selecting a new sc1000
participant.
From MAIN MENU > RTC MODULES /
PROGNOSYS > RTC MODULES > RTC >
CONFIGURE > SELECT SENSOR, select the
correct sensor for the RTC again and confirm.
RTC FAILURE
Brief general read/write error on the CF card,
mostly caused by a brief interruption to the
power supply.
Acknowledge error. If this message is shown
frequently, eliminate the cause of the power
disruptions. If necessary, inform the service
team of the manufacturer ( Section 8, page 43 ).
FAULTY PUMP 1 Faulty measurement signal Test sensor, check cable connections
FAULTY PUMP 2 Faulty measurement signal Test sensor, check cable connections
INFLUENT1 NOT G. Faulty measurement signal Test sensor, check cable connections
INFLUENT2 NOT G. Faulty measurement signal Test sensor, check cable connections
Displayed warnings Cause Resolution
MODBUS ADDRESS
The RTC menu PLANT CONFIG was opened.
This deletes the MODBUS address of the RTC
module.
OPEN THE MODBUS menu of the RTC module
and set the correct MODBUS address.
PROBE SERVICE A configured sensor is in service status. The sensor must exit service status.
Designation Number Service life
CF card, type RTC module 1 piece 2 years
Battery, type CR2032 Panasonic or Sanyo 1 piece 5 years