Error 200077 strain gauge

[shivp]

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.

Any ideas?

Please help me out here.

[Ben]

---

@shivp wrote:

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.

Any ideas?

Please help me out here.

---

Negative number?

Ben

[shivp]

Ben

yes it's give negative number with error.
some time it also give positive number here.

I have also attached the pic of an error here.

plz help me out here.

thank you