6
|
ni.com
|
PXIe-4309 Calibration Procedure
DC Offset Accuracy
Complete the following steps to verify the DC offset accuracy:
1.
Short input channels 0 through 31. Depending on the terminal block used for verification,
refer to step a or b for specifics about how to short the input channels of the PXIe-4309.
a.
CAL-4309
. Connect the double banana plug shorting bar to the input of the CAL-4309
as shown in Figure 1. This connection shorts all 32 input channels of the PXIe-4309.
i.
Attach the CAL-4309 terminal block to the PXIe-4309 module.
ii.
Tighten the mounting screw at the top of the terminal block to secure the terminal
block to the module.
iii. Wait ten minutes for the thermal EMF to stabilize.
iv. Connect the double banana plug shorting bar to the input of the CAL-4309 as
shown in Figure 1.
v.
Wait two minutes for the thermal EMF to stabilize.
Figure 1.
PXIe-4309 DC Offset Verification Setup Using the CAL-4309
b.
TB-4309 (ST)
. Use nickel plated copper wire to short channels 0 through 31 as shown
in Figure 2.
i.
Loosen the top cover screws and remove the top cover.
ii.
Use nickel plated copper wire to short channels 0 through 31 as shown in
Figure 2.
iii. Reinstall the top cover and tighten the top cover screws.
iv. Attach the TB-4309 (ST) terminal block to the PXIe-4309 module.
v.
Tighten the mounting screw at the top of the terminal block to secure the terminal
block to the module.
vi. Wait ten minutes for the thermal EMF to stabilize.
HI
LO
INTERNAL
REFERENCE
HI
LO
INPUT
CAL-4309
PXIe-4309
