3-27
Chapter 3 Starting and Stopping this Device
(v) Introducing process pressure and checking for leaks
In the following procedure, process pressure is introduced into the pressure-receiving part of this device.
Procedure
(1)
Open the master valves (see Figure 2-39), and introduce process fluid into the connecting pipe.
If the process temperature is high at this point, gradually introduce process pressure such that
the usage range of the pressure-receiving part of the device is not exceeded.
(2)
Close the master valve.
(3)
Check that there are no pressure leaks in the connecting pipes, the device itself, etc.
(2) Starting Operation
(i) Applying process pressure
Next, the valves is operated to apply the pressure of the process to this device, and then the measured
values are checked using the communicator.
Procedure
(1) Gradually open the master valve (see Figure 2-39).
(ii) Zero point adjustment during measurement
When performing zero point adjustment during operation, see section 3-9.
(iii) Checking measured values
• Using the communicator, check the measured values.
• After checking , disconnect the communication cable, attach the device's case cover, and switch
the process to normal operation.
• If the analog signal output, the displayed values, etc., do not match the process conditions, recheck
the setting range and the like. If this does not solve the problem, carry out the troubleshooting in
Chapter 4, or contact us.
• If the measurement output and display do not stabilize, refer to Chapter 4 and adjust the
damping time constant.
(iv) Cautions following confirmation of readings
After checking the measured values, confirm that the device's case cover is securely closed. If it is
not securely closed, rainwater and the like can enter the device and cause damage to the terminals,
electronics modules, etc., located inside.
To Next Page
Loading...
Need help?
General
