S+S REGELTECHNIK PREMASREG 716-VA Serie Bedienungs- Und Montageanleitung Seite 13

G
®
PREMASREG 716x - VA
Setting the offset:
SET SET SET SET SELECT SELECT SELECT SELECT
min. max. min. max. min. max. min. max.
ON ON ON ON DIP DIP DIP DIP
1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6
12 12 12 12
11 11 11 11
13 13 13 13
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.
DOWN DOWN DOWN DOWN AUTO ZERO AUTO ZERO AUTO ZERO AUTO ZERO
UP UP UP UP
OFFSET OFFSET OFFSET OFFSET
min. max. min. max. min. max. min. max.
1 1 1 1
2 2 2 2
3 3 3 3
®
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
13