KRAL BEM 100 - Disposal; Disposing of the Electronic Unit; Troubleshooting; Status Leds

11 Disposal
11.1 Disposing of the electronic unit
11 Disposal
11.1 Disposing of the electronic unit
ATTENTION
Environmental damage through improper disposal.
► Dispose of all the components in an environmentally friendly manner in accordance with the applic-
able local regulations.
As electronic waste the electronic unit has to be disposed of properly.
12 Troubleshooting
12.1 Status LEDs
3
5
4
1
6
2
7
8
X10 X1
Fig.9: Status LEDs
1 Pick up 1 (red)
2 Pick up 2 (red)
3 Data transmission TX (green)
4 Data reception RX (red)
5 Error (yellow)
6 Overheating of the processing unit (red)
7 Function (green)
8 Power supply (green)
12.2 Fault table
Fault Cause Remedy
Processing unit does not react. Incorrect Modbus address
selected.
1. Check the Modbus address.
2. Check the format of the Modbus
address.
Processing unit does not react
and green LED8 (power supply)
lights up.
Terminating resistor not
installed.
Check the connection of the
terminating resistor.
Processing unit does not react
and green LED8 (power supply)
is off.
Supply defective or
incorrect wiring.
Check the power supply.
Processing unit does not react
and red LED4 (data reception) is
off.
Processing unit defective
or incorrect wiring.
Check the processing unit and/or
wiring.
Processing unit does not react
and red LED4 (data reception)
flashes.
Data are received but not
understood.
Check the terminating resistor,
Modbus address and baud rate.
Processing unit indicates the flow
in the reverse direction.
Pick ups swopped.
Swop the positions of the pick
ups.
Processing unit does not display
any flow.
Bypass opened.
Close the bypass.
Value in the parameter
"Flow_Threshold" too high.
Check the parameter
"Flow_Threshold" and, if
necessary, correct it.
Flowmeter blocked.
Remove and clean the flowmeter.
Tab.27: Fault table
Operating instructions
OIE 26en-GB Edition 2021-08
21