SECTION I IDENTIFICATION AND DESCRIPTION

TB 9-6625-2321-35

SECTION I

IDENTIFICATION AND DESCRIPTION

1. Test Instrument Identification.

This bulletin provides instructions for the

calibration of Digital Multimeter, National Instruments, Model DAQCard-4050. The

manufacturer's manual was used as the prime data source in compiling these instructions.

The equipment being calibrated will be referred to as the TI (test instrument) throughout

this bulletin. The AN/PSM-95 or AN/PSM-95A and current shunt, National Instruments

CSM-200ma (part of TI) will be required for this procedure.

a. Model Variations. None.

b. Time and Technique. The time required for this calibration is approximately 1

hour, using the dc and low frequency technique.

2. Forms, Records, and Reports

a. Forms, records, and reports required for calibration personnel at all levels are

prescribed by TB 750-25.

b. Adjustments to be reported are designated (R) at the end of the sentence in which

they appear. When adjustments are in tables the (R) follows the designated adjustment.

Report only those adjustments made and designated with (R).

3. Calibration Description. TI parameters and performance specifications which

pertain to this calibration are in table 1.

Table 1. Calibration Description

Test instrument

parameters

Performance specifications

Dc voltage

Range: .2 to 200 V

Accuracy: 1% of range

Ac voltage

Range: .2 to 200 V

Accuracy: 3% of range

Range: 0 to 20 MΩ

Accuracy: 1% of range

Dc current1

Range: 20 to 200 mA dc

Accuracy: 1% of range

Ac current1

Range: 20 to 200 mA ac

Accuracy: 3% of range

1Current

measurements require current shunt (CSM-200ma).