Diagnostics and troubleshooting
Ecograph T, RSG35
50
Hauser
11
Diagnostics and troubleshooting
To help you troubleshoot, the following section is designed to provide an overview of
possible causes of errors and initial remedial measures.
11.1 General troubleshooting
L
WARNING
Danger! Electric voltage!
‣
Do not operate the device in an open condition for error diagnosis!
Display
Cause
Solution
No measured value display; no
LED lit
No supply voltage connected
Check the supply voltage of the device
Supply voltage is applied; device or
power unit is defective
The power unit or the device must be
replaced
Diagnostic message is
displayed
The list of diagnostic messages is provided in the following section
Dead pixels:
Dead pixels refer to pixels on LCD and TFT displays that are defective
due to the technology or manufacturing techniques used. The TFT display used can
have up to 10 dead pixels (Class III as per ISO 13406-2). These dead pixels do not
entitle the user to a warranty claim.
11.2 Troubleshooting
The Diagnostics menu is used for the analysis of the device functions and offers
comprehensive assistance during troubleshooting. Always proceed as follows to locate the
cause of the device errors or alarms.
General troubleshooting procedure
1. Open diagnosis list: lists the 30 most recent diagnostic messages. This can be used to
determine which errors are currently present and whether an error has repeatedly
occurred.
2. Diagnosis of current measured values: Verify the input signals by displaying the
current measured values or the scaled measuring ranges. To verify calculations, call
up calculated auxiliary variables if necessary.
3. Most errors can be rectified by performing steps 1 and 2. If the error persists follow
the troubleshooting instructions in the following sections.
4. If this does not rectify the problem, contact the Service Department. Any time you
contact the Service Department please always have the error number and the
information in the main menu under
"Diagnostics -> Device information"
(program
name, serial number etc.) ready.
The contact details of your Hauser representative can be found on the Internet at
www.endress.com/worldwide
.
11.2.1 Device error/alarm relay
One relay can be used as an alarm relay. If the device detects a system error (e.g. hardware
defect) or a malfunction (e.g. cable open circuit), the selected output/relay switches. The
alarm relay is assigned in the main menu under
"Setup -> Advanced setup -> System ->
Fault switching -> Relay x"
.
Factory setting: Relay 1
.
This "alarm relay" switches if "F"-type or "S"-type errors occur, i.e. "M"-type or "C"-type errors
do not switch the alarm relay.
