National Instruments NI 4070/4072 6 1/2-Digit FlexDMM Manuel D’Utilisation

© National Instruments Corporation

To verify the frequency of the NI 4070/4072, complete the following steps:

1.

Remove all connections from the NI 4070/4072.

Polarity is not important in steps 2, 3, and 5.

2.

Connect one end of the coaxial cable to the Pomona 4892 double 
banana plug.

3.

Tighten the other end of the coaxial cable in the screw terminal 
channels 5 and 39 of the TB-2715 terminal block.

4.

Connect the TB-2715 with the coaxial cable attached to the NI 6608.

5.

Plug the Pomona 4892 into the HI and LO terminals of the 
NI 4070/4072.

6.

Call 

niDMM_reset

 to reset the NI 4070/4072 to a known state. 

7.

Call 

niDMM_ConfigureMeasurement

 with the following 

parameters:

•

Function = 

NIDMM_VAL_FREQ

•

Range = 

1

•

Resolution = 

0

8.

Call 

niDMM_ConfigureFrequencyVoltageRange

 with 

Voltage Range set to 

5

.

9.

Call 

GPCTR_Control

 with the following parameters:

•

deviceNumber = the device number of the NI 6608, assigned by 
Measurement & Automation Explorer (MAX)

•

gpctrNum = 

ND_COUNTER_0

•

action = 

ND_RESET

10. Call 

GPCTR_Set_Application

 with the following parameters:

•

deviceNumber = the device number of the NI 6608, assigned 
by MAX

•

gpctrNum = 

ND_COUNTER_0

•

application = 

ND_PULSE_TRAIN_GNR

11. Call 

GPCTR_Change_Parameter

 with the following parameters:

•

deviceNumber = the device number of the NI 6608, assigned 
by MAX

•

gpctrNum = 

ND_COUNTER_0

•

paramID = 

ND_COUNT_1

•

paramValue = 

10e6