Rinstrum C500 series, Reference Manual

Page: 173 / 182

25 Troubleshooting
Symptom Solution
The weight is not stable
ˆ
Check the connection to the loadcells
ˆ
Ensure that the indicator is connected properly
ˆ
Check that the resolution is OK
ˆ
Check the
OPTION:FILTER
setting
There is no communication
with a PC using RS232
ˆ
Check the port settings in the
SERIAL:SERx
menu
ˆ
Check that a null modem cable is not used. Pins 6..9 should be
disconnected
ˆ
Ensure that a select (Sxx) command is sent before a command/query
There is no bus communica-
tion using RS485
ˆ
Ensure that a select (Sxx) command is sent before a command/query
ˆ
Check that connection is 4 wire
ˆ
Check the port settings in the
SERIAL:SERx
menu
ˆ
Check the cable and converter (if used)
Keys do not work A successful operation of a key is signalled by a short beep. An unsuccessful
operation is signalled by a long beep. If a key beeps to acknowledge the
press, but does not appear to trigger the desired action, check:
1. The key has been disabled in setup (in the
SPEC:KEY
setting).
2. The weight is outside of limits permitted for that key operation. An
error message will be shown.
3. The operation is being blocked by scale instability.
(a) Zero, Tare and Print functions require a stable weight. If the
scale is not stable when these keys are pressed, the indicator
will wait for stability for a maximum of 15s before cancelling the
operation and displaying an error message.
(b) In industrial mode, it is possible to force these functions to be
performed immediately upon key press using the
SPEC:KEY
set-
ting.
168 C500-600-2.0.3