Setting the Range Using the Range-setting Switch
When pressure is applied to the transmitter, the low and high-limit values for the measurement range (LRV and URV) can be changed (re-ranged) using the range-setting switch (push-button) located on the optional integral indicator plate and the external zero adjustment screw. This procedure does not require use of the communicator. However,
changes in the scale range and engineering unit display settings for the integral indicator require use of the communicator. Follow the procedure below to change the LRV and URV settings.In this session we are going to discuss about how to set the range of the pressure transmitter
In this session we are discussing about yokagawa pressure transmitter ,For different transmitters the procedure will be little bit different
Example-Re-range LRV to 0 and URV to 3 MPa.
Procedure
1) Connect the transmitter and apparatus as shown in and warm it up for at least five minutes.
2) Press the range-setting push-button. The integral indicator then displays “LRV.SET.”
3) Apply a pressure of 0 kPa (atmospheric pressure) to the transmitter.
4) Turn the external zero-adjustment screw in the desired direction. The integral indicator displays the output signal in %.
5) Adjust the output signal to 0% (1 V DC) by rotating the external zero-adjustment screw. Doing so completes the LRV setting.
6) Press the range-setting push-button. The integral indicator then displays “URV.SET.”
7) Apply a pressure of 3 MPa to the transmitter.
8) Turn the external zero-adjustment screw in the desired direction. The integral indicator displays the output signal in %.
9) Adjust the output signal to 100% (5 V DC) by rotating the external zero-adjustment screw. Doing so completes the URV setting.
10) Press the range-setting push-button. The transmitter then switches back to the normal operation mode with the measurement range of 0 to 3 MPa.
