S+S Regeltechnik PREMASGARD 232 Series Operating Instructions, Mounting & Installation page 11

G
®
PREMASGARD
Schematic diagram
Plug for
display
1 2 3 4
DIP A: Bus address
DIP B: Bus parameters
Manual zero point calibration
(Baud rate, parity...)
1. The device must be operative for at least 60 minutes before
Telegram indicator
zero point setting is started.
Reception (LED green)
Error (LED red)
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 "key" (auto zero) pushbutton
for 10 seconds without interruption.
By pressing the pushbutton, a countdown of approx. 10 seconds is started.
The yellow LED is blinking and the countdown is shown on the display (optional).
After the countdown period has elapsed, zero point calibration takes place.
This is indicated by continuous LED light and at the display (optional)
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 sensors are pre-set and calibrated at the factory.
For subsequent adjustment of the measured value,
there is an offset potentiometer (A).
The adjusting range is ± 5 % of the pressure measuring range.
232x - Modbus - T3 | Zero point calibration and configuration
A offset B
5 6 7 8
SHD
LED (internal status)
Offset correction
Button „key"(auto zero)
Shielding
1 2 3 4
SHD
DIP A: Bus address
DIP B: Bus parameters
(Baud rate, parity...)
key
Telegram indicator
Reception (LED green)
ON DIP A
Error (LED red)
1 2 3 4 5 6 7 8
address
DIP B
ON
1 2 3 4 5 6
mode
Display - individually
programmable
11
1 2 3 4 5 6 7 8
5 6 7 8
address
DIP B
ON
Plug for
1 2 3 4 5 6
display
mode
LED (internal status)
1 2 3 4
Offset correction
Button „key"(auto zero)
SHD
Shielding
DIP A: Bus address
DIP B: Bus parameters
(Baud rate, parity...)
Telegram indicator
Reception (LED green)
Error (LED red)
PREMASGARD ®
key
232x - Modbus - T3
A offset B
ON
1 2 3 4
5 6 7 8
addre
ON D
1 2 3 4
mode
LED (interna
Offset correc
Button „key"
Shielding
Modbus
Tyr 3