Appendix; Strain Gauge Application Example - WAGO 750-489 Manual

WAGO-I/O-SYSTEM 750
750-489 4AI RTD/TC/Strain Gauge Ex i
13

Appendix

13.1

Strain Gauge Application Example

In the test setup, a load cell is connected to the I/O module (e.g., Channel 1 and
Channel 2).
The load cell has a 2.4 V supply voltage (+I1, −I1) from the I/O module.
The reference voltage (U
bridge voltage by the U
The reference voltage is measured by the "SG - U
gauge bridge voltage by the "SG - U
Sample equation:
Technical data of the load cell used
e.g., 5 kg equals
The weight is calculated as follows:
�������� =
By
���������������� =
and
���� =
��������2
��������1
is
) is detected by the U
ref
channel (+E2, −E2).
d
2 ��������
����
∗ 15 ��������
��������2
����1����0
25000
∗ 2.5 ����
��������1
����1����0
25000
∗ 15 ��������
����1����0
����1����0
channel (+E1, −E1) and the
ref
2.4 V" setting and the strain
ref
±15 mV" setting.
d
:
���� = ∗ 5 ��������
� �������� �
2 ��������
� ���������������� �
1 ����
(standardization to 25000, 15 mV ≙ 25000)
(standardization to 25000, 2.5 V ≙ 25000)
Version 1.1.0, valid from FW Version 02
Appendix 169
Manual