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VELTRON DPT-
plus
Air Monitor Corporation
116-010-91.P65 (09/18/09)
VELTRON DPT-
plus
- IO&M Manual
29
SECTION 5 – OPERATION
5.7 – TRANSMITTER SCALING & CONFIGURATION (con't)
As an example of how to utilize the calculator, the following shows how to change the Operating Span if the process
temperature is 150ºF.
16. While in Transmitter Scaling & Configuration menu, use or to scroll to: Calculator for Max
Diff. Pres. or Flow
17. Press to enter the Calculator for Max Diff. Pres. or Flow sub-menu. Calculate D.P./Flow
Display will indicate:
Selection
18. Press and display will indicate:
Calculate D.P./Flow
DIFF. PRES.
19. Press and twice and display will indicate:
Process Temperature
Selection
20. Press and use button until temperature reads 150ºF.
21. Press and scroll to:
Calculate Diff. Pres
Value
22. Press and a new value for Differential Pressure will be displayed.
23. Press and and display will read:
Update Operating Span
Diff. Pres. Value
24. Press , scroll to YES and press , display will return to that shown in Step 16, and new operating span will
be stored in memory.
Note: If during this step, display indicated CAL. SPAN NOT UPDATED NAT. SPAN TOO LOW or HIGH, new
span is less than 40% or greater than 100% of the natural span of the transducer installed. User should
contact Factory for further assistance (see section 10.0).
25. To return to the Transmitter Scaling & Configuration menu, select EXIT in the Calculator for Max Diff. Pres. or
Flow sub-menu and press .
26. To return to the Main Menu, select Return to MAIN MENU in the Transmitter Scaling & Configuration menu
and press .