11-01-2012 03:20 AM
Sirs,
I am work on strain gauge matters measurements using a strain 120 Ohm connected to the NI9944 to build the quarter bridge that goes inside the 9237.
I am using:
NI cDAQ 9178
NI 9273
NI 9944
Labview 9.0
I am using the same program that is given in here : https://decibel.ni.com/content/docs/DOC-11148 with internal excitation 2.5 V, gauge factor 2 (default).
internal shunt resistance 100 kohms; shunt location R3 (default setting). Have selected "Do offset null" and "Do shunt cal"
----------------------------------------------------------------------------------------------
Error -200077 occurred at DAQmx Perform Shunt Calibration
(Strain).vi:1 Possible reason(s):
Measurements: Requested value is not a supported value for
this property.
Property: AI.Bridge.ShuntCal.GainAdjust
You Have Requested: 61.980405e3
Valid Values Begin with: 500.0e-3
Valid Values End with: 1.500000
-----------------------------------------------------------------
If "Do shunt cal" green button not selected, no error.
Also If i use DAQ Assistance which work just fine with the calibration for the same connection of strain gauge , Ni9237, 9945.
Plz help me
Thank you
Shivam
11-20-2012 04:42 PM
Hello Shivp,
I am experiencing the same issue but in my case i am using 350 ohm strain gauge. Its been almost a year you asked for the solution, i don't know if you got it right or not from any other sources. If yes, can you guide me through the same. Here is the link of my forum post: http://forums.ni.com/t5/LabVIEW/Error-200077-during-Strain-Gauge-Calibration-in-Measurement-and/m-p/...
Thanks in advance!