KROHNE SU 600, Operating Instructions Manual

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6 Setup with the integrated display and adjustment unit
SU 600 • 4 … 20 mA signal conditioning instrument
30652-EN-150129
– Change value of the parameters
By pushing the [ +/- ] key, you change the individual parameters of the
selected function. In this phase, the processed parameter is flashing.
By briefly pushing the two keys simultaneously, you save your set -
tings. " Save " is briefly displayed.
6.2 Setup steps
Setup comprises mainly the adjustment of the measurement loop.
A scaling of the measured value for the LC display and the adapta-
tion of the relay switching points are further settings. Additional setup
steps would be, if necessary, setting an integration time (damping) to
steady the measured value or modifying the current output character-
istics.
To clearly denote the measuring unit, the supplied labels can be in-
serted in the cover. In case several SU 600 are used, each measure-
ment loop should be clearly labelled.
After being switched on, SU 600 first of all carries out a short self-
check. The following steps are carried out:
•
Internal check of the electronics
•
Indication of the firmware version
•
The output signal jumps briefly to the set fault value
Then the actual measured value is displayed and the corresponding
current is transmitted to the current output.
The measured value indication shows the digital indication value and
also an analogue bargraph. Here, it is absolutely necessary that the
function switch is set to position [ 0 ] (" OPERATE ").
The following functions can be selected via the rotary switch:
•
0 : Measured value display and simulation
•
1 : Relay 1 switching point ON
•
2 : Relay 1 switching point OFF
•
3 : Relay 2 switching point ON
•
2 : Relay 2 switching point OFF
•
5 : Decimal point position of the scaling
•
6 : Scaling for 100 %
•
7 : Scaling for 0 %
•
8 : Switch over current output 0/4 … 20 mA
•
9 : Damping of the measured value (integration time)
•
A : Offset correction
•
B : Min. adjustment in percent through change of the level
•
C : Max. adjustment in percent through change of the level
•
D : Min. adjustment in mA without changing the level
•
E : Max. adjustment in mA without changing the level
•
F : Changeover current input active/passive
•
In active mode, SU 600 provides the power for the connected
sensor. Power supply and measurement data are transmitted over
the same two-wire cable. This mode is provided for connection of
Setup
Switch-on phase
Measured value indica-
tion
Function switch
Current input active/pas-
sive