NI 9219 Calibration Procedure
2
ni.com
Documentation Requirements
For information about NI-DAQmx and the NI 9219, you can consult the following documents:
•
NI 9219 Operating Instructions and Specifications
—This document includes detailed information
about the NI 9219 and provides the published specification values for the NI 9219. Visit
ni.com/
info
and enter
cseriesdoc
for the most recent
NI 9219 Operating Instructions and
Specifications
.
The following documents are installed with NI-DAQmx. You also can find the latest versions of the
documentation at
ni.com/manuals
.
•
DAQ Getting Started
guides—These guides provide instructions for installing and configuring
NI-DAQ devices.
•
NI DAQmx Help
—This help file contains general information about measurement concepts, key
NI-DAQmx concepts, and common applications that apply to all programming environments.
•
NI-DAQmx C Reference Help
—This help file contains C reference and general information about
measurement concepts.
Calibration Interval
National Instruments recommends a calibration interval of one year for the NI 9219. You should adjust
the recommended calibration interval based on the measurement accuracy demands of your application.
Test Equipment
National Instruments recommends that you use the equipment in Table 1 for calibrating the NI 9219.
Table 1.
Recommended Equipment
Equipment
Recommended
Model
Parameter Measured
Minimum Requirements
Source
Fluke 5700A
Voltage Accuracy,
Thermocouple Accuracy
If this instrument is unavailable, use a device
that can source voltages as high as 48 V and
meets the following specifications:
Noise:
5 mV
pkpk
0.1 Hz–10 Hz at 48 V
500
V
pkpk
0.1 Hz–10 Hz at 12 V
500
V
pkpk
0.1 Hz–10 Hz at 3.2 V
50
V
pkpk
0.1 Hz–10 Hz at 0.8 V
5
V
pkpk
0.1 Hz–10 Hz at 0.1 V
Current Accuracy
If this instrument is unavailable, use a current
source with noise
500 nA
pkpk
0.1 Hz–10 Hz.
Half-Bridge Accuracy,
Full-Bridge Accuracy
If this instrument is unavailable, use a voltage
source with noise
500
V
pkpk
0.1 Hz–10 Hz
at 3 V.
