Pro II: Extension and Interface Modules
Pro II-SG-4/18 Rev. E
ADwin
156
ADwin-Pro II
Hardware, manual Dec. 2018
Abb. 141 – Pro II-SG-4/18 Rev. E: Pin assignment
The gain of the bridge voltage can be set in steps (20 … 640) via software; this
also sets the voltage range and the signal resolution. Other signals are measu-
red with gain 1.
To compensate zero offset, the bridge voltage can be adjusted a via software
P2_SG_Zero
by up to ±10mV. In addition, the gain factor of strain gage can
be calibrated by software; before, you have put a defined strain on strain gage.
Bridge sensitivity depends on the excitation voltage EX and the gain factor:
For each channel there are several filters:
Für jeden Kanal sind mehrere Filter vorhanden:
– 1MHz at the input
– 2 kHz, 2nd order after first amplifier
– 2kHz or 200 Hz (2nd order) after second amplifier, selectable by soft-
ware
Gain
Voltage range
Resolution
20
±500mV
3.84µV
40
±250mV
1.92µV
80
±125mV
0.96µV
160
±62.5mV
0.48µV
320
±31.25mV
0.24µV
640
±15.625mV
0.12µV
Voltage EX
min. gain 20
max. gain 640
1.25V
400mV/V
12.50mV/V
2.50V
200mV/V
6.25mV/V
3.75V
133mV/V
4.17mV/V
5.00V
100mV/V
3.13mV/V
6.25V
80mV/V
2.50mV/V
7.50V
66mV/V
2.08mV/V
8.75V
57mV/V
1.79mV/V
9.80V
51mV/V
1.59mV/V
B1 (+)
EX1 (+)
EX1 (–)
AIN 13 (+)
B2 (+)
EX2 (+)
EX2 (–)
AIN 13 (–)
B3 (+)
EX3 (+)
EX3 (–)
AIN 14 (+)
B4 (+)
EX4 (+)
EX4 (–)
AIN 14 (–)
AGND
Vcc (5V)
DGND
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
(–) B1
(+) SX1
(–) SX1
AGND
(–) B2
(+) SX2
(–) SX2
AGND
(–) B3
(+) SX3
(–) SX3
AGND
(–) B4
(+) SX4
(–) SX4
AGND
AGND
NC
