
Function
Options
Information
Activation of 4 ... 20 mA
ON / OFF
Value 4 mA
0 ... 1000 NTU
Selection of the lower turbidity limit value (LOLM)✱,
which corresponds to the output value of 4 mA.
Value 20 mA
0 ... 1000 NTU
Selection of the upper turbidity limit value (UPLM)✱,
which corresponds to the output value of 20 mA.
✱ = The NTU value for 4 mA can be set higher than the NTU value for 20 mA to invert the output current if
required. This may be necessary to control a metering pump.
485
Baud
Baud value
n
1200
n
2400
n
4800
n
9600
n
19200
Selection of the Baud rate for the I/O interface
Addr
1 ... 255
Selection of the device address
MBUS
ASCII
RTU
Selection of ASCII or RTU
6.5.2 Setting the fault current (ERLV)
A0625
Fig. 16: Setting the fault current (ERLV)
The 4-20 mA signal output can be used in the event of a system
error in the DULCO turb C when the
[ERLV ON] function is
switched on to display the problem. Fault currents of 4.00 mA, 2.00
mA or 0 mA can be selected. In the event of an error, the config‐
ured current value is output to the control, regardless of which
measured value is pending. If the function is switched
[OFF], the
4 ... 20 mA signal output remains unaffected by the fault condition.
Select the required fault currents by pressing the UP and DOWN
keys, then press EXIT to save the selected setting.
Commissioning
34