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Crystal Engineering Corporation
nVision.Application.Specific.Test.Strategies.
The nVision may be used for the following typical test applications.
Transmitter.Calibration.(Pressure.versus.Current)
The nVision is capable of calibrating a pressure transmitter:
1
Modules Required: PM (Pressure) and MA20
(Current & Voltage).
2
Determine if HART transmitter is present.
If yes, then proceed to HART Transmitter
Calibration (Pressure versus Current) section.
3
Select desired Current mode (mA, or % 4 –
20mA) using the Setup button.
4
Change the nVision to the Dual Numerical
Screen or any other preferred screen view.
5
Select the proper pressure units for your
nVision using the Setup menu.
6
Connect the nVision as shown.
7
Vent pressure source and Zero (- - - - -) the
nVision pressure module.
8
Apply pressure profile. Test or record pressure
and current readings as required.
9
Before disconnecting the nVision, isolate and
vent the pressure system.
Disconnect and return to service.
PRES
SURE
is Our
BUSINES
S
TM
+
-
VACUUM
PRESSURE
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