Instrumentation Amplifier

Hai Cean's
I am Doing my final year project on Digital Blood Pressure meter. for that i have used the AD620 as the instrumentation amplifier.

I give the +vs=+12v, -vs=-12v, Rg=1Kohm. I doest get any amplified output I dont know whether the ic is working or not😕. Is there any way to check that. Would anyone help me.

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