13
G
PREMASREG
®
716x
PREMASREG
®
716x
(Range: 0...+ xx Pa)
After successful zero point calibration,
the output voltage is 0 V at 0 Pa pressure difference
(with the offset knob in central position)!
Output voltage 0...10 V
for pressure difference from 0 Pa to final value
PREMASREG
®
716x
(Range: - xx ...+ xx Pa)
After successful zero point calibration,
the output current is 5 V at 0 Pa pressure difference
(with the offset knob in central position)!
Output voltage 0...10 V
for pressure difference - ΔP... +ΔP
Automatic offset correction:
1. The device must be operative for at least 60 minutes
before zero point setting is started.
2. Connect pressure inputs P (+) and P (–) with a hose.
(differential pressure between the connections = 0 Pa).
3. To set the zero point, press the
AUTO ZERO
pushbutton for 10 seconds without interruption.
By pressing the pushbutton, a countdown of approx. 10 seconds is started.
The yellow LED is flashing and the countdown is shown on the display.
After the countdown period has elapsed, zero point calibration takes place.
This is indicated by continuous light of the LED, and on the display by
switching from "AUTO 0" to "PROG 0".
Note: When releasing the pushbutton during countdown (counter > 0),
zero point setting is immediately aborted!
Manual offset adjustment:
The offset potentiometer functions in addition to and independently of
the automatic setting of the zero point.
With the
OFFSET
potentiometer, a deviation outside of the zero point
can be aligned.
The range for adjustment is approx. ± 10 % of the pressure range.
Automatic zero point calibration (optional):
A zero point calibration is carried out cyclically via an internal valve.
The cycle time can be set between 15 minutes and 24 hours
using the
SET
potentiometer.
During the automatic calibration, the output value remains at its last
pressure value.
Setting the offset:
1
2
3
UP
DOWN
SELECT
AUTO ZERO
SET
min. max.
min. max.
OFFSET
1 2 3 4 5 6
ON DIP
12
11
13
1
2
3
UP
DOWN
SELECT
AUTO ZERO
SET
min. max.
min. max.
OFFSET
1 2 3 4 5 6
ON DIP
12
11
13
1
2
3
UP
DOWN
SELECT
AUTO ZERO
SET
min. max.
min. max.
OFFSET
1 2 3 4 5 6
ON DIP
12
11
13
1
2
3
UP
DOWN
SELECT
AUTO ZERO
SET
min. max.
min. max.
OFFSET
1 2 3 4 5 6
ON DIP
12
11
13
