Information
●
Both measuring ranges 0/4 – 20 mA and 20 – 0/4 mA (inverse operation) can
be set.
During setting process, the measuring range (normal or inverse operation) is
assigned to the end positions by push button S1/S2 assignment.
●
For 2-wire systems, switch off <LED end position signaling> prior to setting the
measuring range.
●
Setting mode activating clears the setting in both end positions and sets the
output current to a value of 3.5 mA. After activation, both end values (0/4 mA
and 20 mA) need to be reset.
●
In case of inadvertent incorrect adjustment, the settings can always be reset
by renewed activation of the setting mode (simultaneous pressing of [S1] and
[S2]).
Activate setting mode
1.
Press both push buttons [S1] and [S2] and hold down for 5 seconds:
➥
By pulsing double flashes, the LED indicates that the setting mode is correctly
activated:
➥
For any other LED flash sequence (single/triple flashing): Refer to <Faults
during commissioning>.
Set measuring range
2.
Operate valve in one of the end positions (OPEN/CLOSED).
3.
Set desired output current (0/4 mA or 20 mA):
→
for 4 mA: Hold down push button [S1] for approx. 3 seconds,
until LED is blinking slowly
.
→
for 0 mA: Hold down push button [S1] for approx. 6 seconds,
until LED is blinking fast
.
→
for 20 mA: Hold down push button [S2] for approx. 3 seconds,
until LED is illuminated
.
Information: For 2-wire systems read current values at test device.
4.
Operate valve into opposite end position.
➥
The value set in end position (0/4 mA or 20 mA) does not change during travel
in setting mode.
5.
Perform setting in the second end position following the same steps.
6.
Approach both end positions again to check the setting.
→
If the measuring range cannot be set:
Refer to <Faults during commissioning>.
→
If the current values (0/4/20 mA) are incorrect:
Refer to <Current values: adjust>.
→
If the current value fluctuates (e.g. between 4.0 – 4.2 mA):
Switch off LED end position signaling.
Refer to <LED end position signaling: switch on/off>.
10.3.2.
Current values: adjust
The current values (0/4/20 mA) set in end positions can be adjusted at any time.
Conventional values are e.g. 0.1 mA (instead of 0 mA) or 4.1 mA (instead 4 mA).
Information
If the current value fluctuates (e.g. between 4.0 – 4.2 mA), the <LED end position
signaling> must be switched off for current adjustment.
51
SAEx 25.1 – SAEx 35.1 / SAREx 25.1 – SAREx 30.1
NORM (without controls)
Commissioning (setting optional equipment)
