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10 Diagnostics and servicing
VEGAPULS C 21 • SDI-12
58342-EN-200121
Code
Text message
Cause
Rectification
S601
Overfilling
Danger of vessel overfilling
Make sure that there is no further filling
Check level in the vessel
S603
Impermissible operating
voltage
Terminal voltage too small
Check terminal voltage, increase operat-
ing voltage
Code
Text message
Cause
Rectification
M500
Error in the delivery
status
M501
Error in the delivery
status
M504
Error at a device inter-
face
Hardware defect
Check connections
Exchanging the electronics
Send instrument for repair
M505
No echo available
Sensor does not detect an echo during
operation
Antenna dirty or defective
Clean the antenna
Use a more suitable antenna/sensor
Remove possible false echoes
Optimize sensor position and orientation
M507
Error in the instrument
settings
Error during setup
Error when carrying out a reset
False signal suppression faulty
Carry out reset and repeat setup
M508
Data error in program
memory Bluetooth con-
troller
M509
Software update
M510
No communication with
the sensor
10.4 Treatment of measurement errors
The tables below give typical examples of application-related meas-
urement errors.
The images in column "
Error description
" show the actual level as a
dashed line and the output level as a solid line.
Maintenance
