Instructions for Use
– SCHMIDT
®
LED Measured Value Display MD 10.010
Page 19
8 Service information
Eliminating malfunctions
The following Table 5 lists possible errors (error images).
A description of the way to detect errors is given. Furthermore, the possi-
ble causes and measures to be taken to eliminate errors are listed.
Error image
Possible causes
Troubleshooting
Displays off &
analog output to zero
Supply voltage U
B
:
No U
B
present
U
B
(DC) wrong polarity
U
B
too low
LED Display defective
Supply voltage:
Check if connected cor-
rectly to power supply
Check voltage type
(DC, AC)
Check if there is supply
voltage at the terminal
(cable break)
Measuring range too large
/ small
Incorrect configuration of
sensor's measuring range
Check if analog measured
value is correct (
)
Check configuration of
start (
) and end value
(
) of sensor's measur-
ing range
Analog measuring value
(
) too large / small
Jumper of signal mode ana-
log input
Set jumper according
signal mode
Input configuration
Check input configuration
(
) according to input
signal
Analog signal too large /
small
Output configuration
Check configuration
Unexpected values at
alarm output
Configuration alarm output
Check configuration
Table 5
