LVDT Calibration -1000 to +1000

[S.G1.]

Hi ,

im trying to configure my SCXI 1540 Module w/1315 terminal block card for excitation voltage 3 Vrms and frequency 2.5Khz using Max

I have LabVIEW Express 8.2 PDS - SCXI-1000 Chassiss - along with PCI-6254 is attached to the 1540 card.
MAX says it recognizes all the cards in the chassiss. The LVDT Probe when connected to the SCXI 1540 does show changes in values even when the probe is moved . But the deflection it shows is not correct. I want to fit the 0-2mA current that i am getting from the lvdt to a -1000 to +1000 scale. How can i do that ?
The probe has been checked individually as well as the the excitation signal on the SCXI 1540 module channel has been checked on the CRO.(Though in MAX we have set the excitation frequency to 2.5KHz ).

The PCI 6254 has two connector inputs Connector0 is from the SCXI  and Connector1 is from  SCB 68 module (Digital signals from the client main panel are routed to the SCB68 terminal block).

Plz offer some solution

S.G1 

[samantham]

Hello,

To scale the 0-2 mA range to -1000 – 1000 range, you can create a custom scale.  The type of scale you would be interested in is linear with m = 1,000,000 and b = -1,000.  In MAX, you can create a new task by right clicking on the NI-DAQmx Tasks under Data Neighborhood.  The Task Configuration tab has an option in the lower right hand corner for Custom Scaling.  Hope this helps.