Dynasonics TFXP Series Transit Time Ultrasonic Flow Meter - Manual (Page 89)

Rev. 5/09
-4.11- TFXP
Calibration/Test is used to adjust the factory calibration span of the
4-20 mA output and to test the output. The 4-20 mA output is factory
calibrated and should not require adjustment in the field. If the
module is replaced or if recalibration is required, the following
procedure is used to calibrate the span of the module:
1. Connect a milliamp meter serially within the 4-20 mA module
output.
2. Check the Calibration/Test box.
3. Select the 4 mA Calibration box.
4. Adjust the count value to the right of the 4 mA button until
the milliamp meter registers 4.00 mA.
5. Select the 20 mA Calibration box.
6. Adjust the count value to the right of the 20 mA button until
the milliamp meter registers 20.00 mA.
7. Press the Test button.
8. Adjust the count value to 12.
9. Verify that the milliamp meter registers 12.00 mA.
10. Uncheck the Calibration/Test box.
Figure 4.6 — Output Tab Layout
PART 4 - SOFTWARE UTILITIES