Quarter Bridge User Guide

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USER GUIDE

NI 9944/9945 Quarter Bridge

Completion Accessory

This document describes the features of the National Instruments 9944 and

9945 Quarter Bridge Completion Accessories, referred to inclusively in

this document as the NI 9944/9945. You can use the NI 9944/9945 to add

a quarter bridge to the NI 9237 module. Refer to the NI 9237 Operating

Instructions for more information about the NI 9237.

Figure 1. NI 9944/9945 Quarter Bridge Completion Accessory

What You Need to Get Started

To use the NI 9944/9945, you will need the following:

❑ Plastic tie strap for strain relief wrapped around the two front holes,

as shown in Figure 3

❑ M4x20 screw, or other hardware that fits in the 8.89 mm (0.350 in.)

outer clearance hole and 4.57 mm (0.180 in.) inner clearance hole,

as shown in Figure 3

NATIONAL

INSTRUMENTS

Summary of content (4 pages)

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USER GUIDE NI 9944/9945 Quarter Bridge Completion Accessory This document describes the features of the National Instruments 9944 and 9945 Quarter Bridge Completion Accessories, referred to inclusively in this document as the NI 9944/9945. You can use the NI 9944/9945 to add a quarter bridge to the NI 9237 module. Refer to the NI 9237 Operating Instructions for more information about the NI 9237. N T INA ST IONA RU L ME NT S Figure 1.
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NI 9944/9945 Dimensions The NI 9944/9945 has outer dimensions of 66 × 21.6 × 22.96 mm (2.6 × 0.85 × 0.90 in.), as shown in Figures 2 and 3. 0 EX+ 1 IN+ 3 Shield 21.6 mm (0.85 in.) 2 QTR 66 mm (2.6 in.) Figure 2. NI 9944/9945 Dimensions Holes for Tie Strap Ø 8.89 mm (0.350 in.) Ø 4.57 mm (0.180 in.) 22.86 mm (0.90 in.) Figure 3. NI 9944/9945 Dimensions and Hole Clearance Specifications The following specifications are typical for the range – 40 to 70 °C, unless otherwise noted. Weight ............
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Where to Go for Support The National Instruments Web site is your complete resource for technical support. At ni.com/support you have access to everything from troubleshooting and application development self-help resources to email and phone assistance from NI Application Engineers. National Instruments corporate headquarters is located at 11500 North Mopac Expressway, Austin, Texas, 78759-3504. National Instruments also has offices located around the world to help address your support needs.
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