Trouble-shooting table
Use the following Table to check for incorrect operation
Fault
Cause and remedy
Measured value wrong
(Modes 0
…
3)
•
Incorrect calibration? Check measured value before
linearisation, V0H9
- if not correct, check whether full and empty
calibration correct V0H1/V0H2
- If correct, check linearization parameters
- Check operating mode, V8H0
•
Change in product
- recalibrate for new product
•
Build-up on probe
- wire electronic insert for build-up, see
Section 2.4
•
Probe damaged, bent or pressed to side of vessel
- check and remedy
•
Condensation in connection compartment
Measured value wrong
Mode 5, with reference probe
•
Product inhomogenous
•
Build up or crystallisation on both probes
•
Build-up or crystallisation on reference probe
•
Probes bent or damaged
•
Calibration not performed correctly
- recalibrate
•
Reference probe and measuring probe are not
matched as required, see Section 8.2
- Check rod diameter, ground pipe or shield, insulating
material etc.
0/4
…
20 mA outputs do not function
correctly
•
Check all settings
- Assignment correct, V8H2
- Start and end values correct, V0H5/V0H6, V4H5/V4H6?
- Alarm relay has tripped, fault value
•
Wiring or loads incorrect, see »Installation«
Relays do not trip correctly
•
Incorrect settings, e.g. configured in wrong units
- Check correct units used for all relay settings
- Check relay assignments, V1H4, V5H4
- Simulate settings in simulation mode - see Section 9.2,
if the relays LEDs switch, check wiring
•
Wiring or load incorrect, see »Installation«
Alarm relay blinks
•
For twin channel operation, probe missing on one
channel
- Switch to mode 1 or 2
•
See also Table 9.1
No communication with ZA 67
…
or Commulog
Check position of hook switch, see Section 2.5
Table 9.2:
Trouble shooting table for
incorrect function without error
message
Silometer FMC 672 Z/677 Z
Chapter 9: Trouble-Shooting
48
Содержание Silometer FMC 672 Z
Страница 6: ...Silometer FMC 672 Z 677 Z Notes on Safety 4...
Страница 59: ...Silometer FMC 672 Z 677 Z Operating matrix...
Страница 62: ...Silometer FMC 672 Z 677 Z Operating matrix...
Страница 63: ...Silometer FMC 672 Z 677 Z Operating matrix...