Calibration
5-3
March 2004
Trimming 4-20 mA via
the Keypad
1.
In the
User Program
, scroll to
CAL
with
4-20 Loop
highlighted.
Press [ENT].
2.
Scroll to
Mode
and press [ENT]. In the
Mode
window, scroll to
Test[Trim]
and press [ENT].
3.
Return to the
Loop
window, and scroll to
Percent.
4.
In the
Percent
window, use the arrow keys to set the percentage to
100%. Press [ENT]. Record the value shown on the current meter.
5.
Now use the arrow keys to set the percentage to 0%. Press [ENT].
Record the value shown on the current meter.
6.
Return to the
Loop
window, and scroll to
Base Trim
. Press [ENT].
7.
Use the arrow keys to enter the base trim value, the value recorded
in step 5. (The loop current should now be the same as the current
meter. It should read 4.0 +/-0.01 mA.) Press [ENT]
8.
Repeat steps 3 and 4.
9.
Return to the
Loop
window, and scroll to
Span Trim
. Press [ENT].
10.
Use the arrow keys to enter the span trim value, the value recorded
in step 4. (The loop current should now be the same as the current
meter. It should read 20.0 +/-0.01 mA.) Press [ENT].
11.
Return to the
Loop
window, and scroll to
Mode
. Press [ENT].
Scroll to
Normal,
and press [ENT].
Summary of Contents for UTX878 Ultrasonic
Page 2: ...iii March 2004 The UTX878 Flow Transmitter and Transducers ...
Page 8: ...Chapter 1 ...
Page 20: ...March 2004 Installation 1 11 Figure 1 5 UTX878 Outline and Installation Dwg 712 1196 rev 2 ...
Page 22: ...March 2004 Installation 1 13 Figure 1 7 UTX878 Wiring Diagram Dwg 702 528 rev 2 ...
Page 23: ...Chapter 2 ...
Page 45: ...Chapter 3 ...
Page 52: ...Chapter 4 ...
Page 60: ...Chapter 5 ...
Page 65: ...Chapter 6 ...
Page 75: ...Chapter 7 ...
Page 80: ...Appendix A ...
Page 85: ...Appendix B ...
Page 86: ...CE Mark Compliance Introduction B 1 EMC Compliance B 1 ...
Page 88: ...Appendix C ...
Page 89: ...Data Records Site Data C 1 ...
Page 93: ...Appendix D ...
Page 94: ...Service Record Introduction D 1 Data Entry D 1 Diagnostic Parameters D 3 ...