National Instruments NI 4050 用户手册

© National Instruments Corporation

Thank you for buying a National Instruments 4050 digital multimeter card. 
A system based on the NI 4050 offers the flexibility, performance, and 
size that makes it ideal for service, repair, and manufacturing as well as 
for use in industrial and laboratory environments. The NI 4050, used in 
conjunction with your computer, is a versatile, cost-effective platform for 
high-resolution measurements.

For the most current versions of manuals and example programs, visit 

www.ni.com/instruments

 for free downloads.

Detailed specifications for the NI 4050 are in Appendix A, 

.

Before using any measurement equipment, it is important that you thoroughly 

understand the safety instructions for that product. The beginning of Chapter 2, 

, covers the safety guidelines for your NI 4050.

The NI 4050 instrument kit contains the NI 4050 accessory cable that 
connects the NI 4050 to a pair of test probes with shrouded banana plugs, 
which are also included in the kit. Both the NI 4050 accessory cable and the 
test probes meet international safety requirements including UL 3111 and 
IEC 1010-1 for the full ranges of applications supported by the NI 4050. 
Before using any probes or accessories not supplied by National 
Instruments, ensure that they meet applicable safety requirements for the 
signal levels you may encounter.

To use the NI 4050 accessory cable and probes with the NI 4050, first 
connect the cable to the card as shown in Figure 1-1. The accessory cable 
connector is polarized so that it cannot be plugged in incorrectly.