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Model 764 Differential Pressure Transmitter Section 3
Startup Procedure
To operate the transmitter, perform the following steps.
1. Close the transmitter shut-o valves.
2. Close the transmitter drain valves and calibration connection valves.
3. Open the main block valves at the process connections.
4. Slowly open the transmitter shut-o valves.
5. Apply electrical power to the transmitter loop.
Shutdown Procedure
To shut down operations, perform the following steps.
1. Remove electrical power from the transmitter loop.
2. Close the transmitter shut-o valves.
3. Close the main block valves at the process connections.
4. Open the transmitter drain valves and remove all pressure from the unit.