ZET 7111 TROUBLESHOOTING

Method for testing the ZET 7111 measuring units:

1. Using an AC voltage meter, check the voltage on terminals 1-6, it should be equal to (4.5±1) V.

2. Also, check the AC voltage on terminals 4-5, it should be equal to the voltage on terminals 1-6.

3. With an external sensor/strain resistor connected, check the AC voltage between terminals 2-6, it should be approximately 2 times less than in item 1 above.

4. In the case of full bridge circuit, check the AC voltage between terminals 3-6: it should be approximately 2 times less than in Clause 1 above.