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- Page 1 ™ DAQMeter ™ DAQCard -4050 User Manual Digital Multimeter Card for PCMCIA DAQMeter DAQCard-4050 User Manual February 1997 Edition Part Number 321427A-01 © Copyright 1997 National Instruments Corporation. All Rights Reserved.
- Page 2 Mexico 5 520 2635, Netherlands 0348 433466, Norway 32 84 84 00, Singapore 2265886, Spain 91 640 0085, Sweden 08 730 49 70, Switzerland 056 200 51 51, Taiwan 02 377 1200, U.K. 01635 523545 National Instruments Corporate Headquarters 6504 Bridge Point Parkway Austin, TX 78730-5039 Tel: (512) 794-0100...
- Page 3 Important Information Warranty The DAQMeter DAQCard-4050 is warranted against defects in materials and workmanship for a period of one year from the date of shipment, as evidenced by receipts or other documentation. National Instruments will, at its option, repair or replace equipment that proves to be defective during the warranty period. This warranty includes parts and labor.
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Page 4: Table Of Contents
What You Need to Get Started ..................1-2 Software Programming Choices ................... 1-2 National Instruments Application Software ........... 1-2 VirtualBench....................1-3 DAQMeter DAQCard-4050 Instrument Driver and NI-DAQ ....... 1-3 Optional Equipment ...................... 1-5 Unpacking ........................1-5 Chapter 2 Installation and Configuration Safety Instructions ...................... - Page 5 Input Ranges ....................3-9 Continuity Measurements ................3-10 Testing Diodes......................3-10 Signal Connections ..................3-10 Measuring Current......................3-11 Appendix A Specifications Appendix B PC Card Questions and Answers Appendix C Customer Communication Glossary Index DAQMeter DAQCard-4050 User Manual © National Instruments Corporation...
- Page 6 Table 3-2. AC Input Range Accuracy ..............3-6 Table 3-3. Input Frequency Error Rate ..............3-7 Table 3-4. Crest Factor Error Rate ................3-7 Table 3-5. Resistance Input Range Accuracy ............3-9 © National Instruments Corporation DAQMeter DAQCard-4050 User Manual...
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Page 7: About This Manual
PC Card (PCMCIA) operation. • Appendix C, Customer Communication, contains forms you can use to request help from National Instruments or to comment on our products. • The Glossary contains an alphabetical list and description of terms used in this manual, including acronyms, abbreviations, metric prefixes, mnemonics, and symbols. -
Page 8: Conventions Used In This Manual
National Instruments Documentation The DAQMeter DAQCard-4050 User Manual is one piece of the documentation set for your DAQ system. You could have any of several types of manuals depending on the hardware and software in your system. -
Page 9: Related Documentation
Your computer user manual Customer Communication National Instruments wants to receive your comments on our products and manuals. We are interested in the applications you develop with our products, and we want to help if you have problems with them. To make it easy for you to contact us, this manual contains comment and configuration forms for you to complete. -
Page 10: Introduction
Chapter Introduction This chapter describes the DAQMeter DAQCard-4050, lists what you need to get started, describes the optional software and optional equipment, and explains how to unpack your card. About the DAQMeter DAQCard-4050 Thank you for buying a National Instruments DAQMeter DAQCard-4050. -
Page 11: What You Need To Get Started
LabVIEW features interactive graphics, a state-of-the-art user interface, and a powerful graphical programming language. The LabVIEW Data Acquisition VI Library, a series of VIs for using LabVIEW with National Instruments DAQ hardware, is included with DAQMeter DAQCard-4050 User Manual © National Instruments Corporation... -
Page 12: Virtualbench
Acquisition library is functionally equivalent to the NI-DAQ software. However, the DAQCard-4050 works only with the Easy I/O functions. For full functionality, you can use the DAQMeter DAQCard-4050 Instrument Driver with LabWindows/CVI. Using LabVIEW or LabWindows/CVI software will greatly reduce the development time for your data acquisition and control application. -
Page 13: Figure 1-1. The Relationship Between The Programming Environment
While you can do most programming at the instrument driver level, you can use NI-DAQ for complete control over the card’s functionality as well as for integrating your system into larger National Instruments data acquisition systems. Whether you are using the DAQMeter DAQCard-4050 Instrument Driver, LabVIEW, or LabWindows/CVI, your application uses the NI-DAQ driver software, as illustrated in Figure 1-1. -
Page 14: Optional Equipment
Chapter 1 Introduction Optional Equipment National Instruments offers a variety of products to use with your DAQCard-4050, including cables, connector blocks, and other accessories, as follows: • Current shunt modules for making current measurements • Additional test probes and accessories to simplify making... -
Page 15: Installation And Configuration
If the device is damaged, do not use until service-trained personnel can check its safety. If necessary, return the device to National Instruments for service and repair to ensure that its safety is not compromised. Do not operate this equipment in a manner that contradicts the information specified in this document. -
Page 16: Installation
Installation Note: You should install your driver software before installing your hardware. Refer to the DAQMeter DAQCard-4050 Read Me First document for software installation instructions. There are two basic steps to installing a DAQCard-4050: 1. If you have Windows 3.1, you must have Card & Socket Services 2.0 (or a later version) software installed on your computer. -
Page 17: Cable And Probes
DAQCard-4050, first connect the cable to the card as shown in Figure 2-1. The accessory cable connector is polarized so that it cannot be plugged in incorrectly. Portable Computer PCMCIA Slot DAQCard-4050 Accessory Cable Probes Figure 2-1. Installing the DAQCard-4050 and Cables © National Instruments Corporation DAQMeter DAQCard-4050 User Manual... -
Page 18: Hardware Configuration
With the plastic tip covers removed, the test probes can accept standard banana jack accessories (such as spade lugs, alligator clips, or spring clips), which are available from National Instruments. Standard Banana Plastic Tip Cover... -
Page 19: Dmm Operation
Chapter DMM Operation This chapter describes how to use your DAQMeter DAQCard-4050 and includes operation tips on taking voltage, resistance, diode, and current readings. Warm-up Measurements taken with the DAQCard-4050 change with temperature. These changes are called thermal drifts or temperature coefficients. The DAQCard-4050 temperature coefficient specifications are listed in the Accuracy sections in Appendix A, Specifications. -
Page 20: Measuring Voltages
±250 VDC or 250 V DC Voltage AC Voltage 250 V 250 V MAX. Source MAX. Source Figure 3-1. Connecting Probes for Voltage Measurement DAQMeter DAQCard-4050 User Manual © National Instruments Corporation... -
Page 21: Dc Voltages
Although the high (>1 GΩ) impedance in the lower three input ranges is not likely to cause any significant errors, the lower impedance of the ±25 V and ±250 V ranges can attenuate (make smaller) the signal being measured. © National Instruments Corporation DAQMeter DAQCard-4050 User Manual... -
Page 22: Ac Noise Effects
Occasionally these voltages are desirable, such as when the thermal EMF of a thermocouple is used to measure temperature changes. Other times these voltages are sources of error. DAQMeter DAQCard-4050 User Manual © National Instruments Corporation... -
Page 23: Ac Voltages
(the overrange) with reduced accuracy. Table 3-2 shows the accuracy and typical overrange of each of the input ranges. The accuracy is based on a 1 kHz sine wave of full-scale input range. © National Instruments Corporation DAQMeter DAQCard-4050 User Manual... -
Page 24: Accuracy Considerations
The accuracy of the DAQCard-4050’s AC voltage measurements is a function of the input signal’s frequency. Table 3-3 shows the additional measurement errors associated with different frequency ranges. These errors are for full-scale, sine wave inputs. DAQMeter DAQCard-4050 User Manual © National Instruments Corporation... -
Page 25: Crest Factor
10. Table 3-4 shows the additional errors associated with different crest factors. Table 3-4. Crest Factor Error Rate Crest Additional Error Factor (Percent of Full Scale) 1–2 no error 2–5 5–10 © National Instruments Corporation DAQMeter DAQCard-4050 User Manual... -
Page 26: Ac Voltage Offset
250 V Resistor MAX. Figure 3-3. Connections for Resistance Measurement DAQMeter DAQCard-4050 User Manual © National Instruments Corporation... -
Page 27: Input Ranges
For resistances up to 1 MΩ, the accuracy is 0.05%. For resistances between 1 MΩ and 20 MΩ, the accuracy is 0.1%. For larger resistances, the error is 0.4%. © National Instruments Corporation DAQMeter DAQCard-4050 User Manual... -
Page 28: Continuity Measurements
100 µA and measures the resulting voltage drop. Diode measurements are made with a fixed range of 2.0 V and an accuracy of 0.01%. 100 µA 250 V Diode MAX. Figure 3-4. Connections for Diode Measurement DAQMeter DAQCard-4050 User Manual 3-10 © National Instruments Corporation... -
Page 29: Measuring Current
DMM Operation Measuring Current You can use the DAQCard-4050 to measure current with an optional National Instruments CSM series current shunt module. These accessories are connected between the DAQCard-4050 cable and the test probes as shown in Figure 3-5. Current... -
Page 30: Appendix A Specifications
NMRR (10 Hz filter setting, 50/60 Hz power line frequency ±5%) ....80 dB DC CMRR ..........>130 dB AC CMRR ..........90 dB, 60 Hz Input Characteristics Input bias current ........100 pA, 1 nA max © National Instruments Corporation DAQMeter DAQCard-4050 User Manual... - Page 31 60 ppm + 50 ppm 22.0000 mV Additional AC Errors Frequency dependent errors Input Frequency Additional Error (% of full scale) 20–50 Hz 50–100 Hz 100 Hz–5 kHz 5–10 kHz 10–25 kHz DAQMeter DAQCard-4050 User Manual © National Instruments Corporation...
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Page 32: Crest Factor Errors
*The accuracy of measurements made in the Extended Ohms range varies with the value being measured. For resistances up to 1 MΩ, the accuracy is 0.05%. For resistances between 1 MΩ and 20 MΩ, the accuracy is 0.1%. For larger resistances, the error is 0.4%. © National Instruments Corporation DAQMeter DAQCard-4050 User Manual... -
Page 33: General Specifications
Altitude ..........For use up to 2,000 m Maximum working voltage between either input terminal and earth ground ........ 250 V max Power requirement ........+5 VDC 45 mA in operational mode 15 mA in power-down mode DAQMeter DAQCard-4050 User Manual © National Instruments Corporation... - Page 34 Appendix A Specifications Physical PCMCIA card type ......Type II I/O connector ........4-pin male Environment Operating temperature ......0° to 55° C Storage temperature ......-55° to 150° C Relative humidity .......5% to 90% noncondensing © National Instruments Corporation DAQMeter DAQCard-4050 User Manual...
- Page 35 Windows NT. We strongly recommend that you use Windows 95. 2. Do I need to use my PCMCIA configuration utility to configure the National Instruments PC Cards? No. We recommend that you do not configure our PC Cards using PC Card Control or an equivalent PC Card configuration utility.
- Page 36 Card Services and/or the memory manager. Second, you can attempt to determine all of the memory that Card Services can possibly use and exclude all but that memory from use by Card Services. DAQMeter DAQCard-4050 User Manual © National Instruments Corporation...
- Page 37 LPT2, but if the computer does not have two parallel ports, IRQ5 should be usable. IRQ3 is used for COM2, but if the computer has only has one serial port, IRQ3 should be usable. © National Instruments Corporation DAQMeter DAQCard-4050 User Manual...
- Page 38 RAM on the system. Even when this is the case, you should still exclude the memory addresses used by Card Services from use by any memory manager that may be installed. DAQMeter DAQCard-4050 User Manual © National Instruments Corporation...
- Page 39 Electronic Services Bulletin Board Support National Instruments has BBS and FTP sites dedicated for 24-hour support with a collection of files and documents to answer most common customer questions. From these sites, you can also download the latest instrument drivers, updates, and example programs. For recorded instructions on how to use the bulletin board and FTP services and for BBS automated information, call (512) 795-6990.
- Page 40 Telephone and Fax Support National Instruments has branch offices all over the world. Use the list below to find the technical support number for your country. If there is no National Instruments office in your country, contact the source from which you purchased your software to obtain support.
- Page 41 National Instruments for technical support helps our applications engineers answer your questions more efficiently. If you are using any National Instruments hardware or software products related to this problem, include the configuration forms from their user manuals. Include additional pages if necessary.
- Page 42 Complete a new copy of this form each time you revise your software or hardware configuration, and use this form as a reference for your current configuration. Completing this form accurately before contacting National Instruments for technical support helps our applications engineers answer your questions more efficiently.
- Page 43 Documentation Comment Form National Instruments encourages you to comment on the documentation supplied with our products. This information helps us provide quality products to meet your needs. Title: DAQMeter DAQCard-4050 User Manual Edition Date: February 1997 Part Number: 321427A-01 Please comment on the completeness, clarity, and organization of the manual.
- Page 44 Glossary Prefix Meaning Value pico- nano- µ- micro- milli- kilo- mega- giga- Numbers/Symbols percent positive of, or plus negative of, or minus ° degree ± plus or minus Ω © National Instruments Corporation DAQMeter DAQCard-4050 User Manual...
- Page 45 Typically, a bus is the expansion vehicle to which I/O or other devices are connected. Examples of PC buses are the PCI bus, AT bus, and EISA bus. DAQMeter DAQCard-4050 User Manual © National Instruments Corporation...
- Page 46 D/A and/or DIO boards in the same computer decibel—the unit for expressing a logarithmic measure of the ratio of two signal levels: dB=20log10 V1/V2, for signals in volts direct current © National Instruments Corporation DAQMeter DAQCard-4050 User Manual...
- Page 47 DAQ board or a GPIB interface board EEPROM electrically erasable programmable read-only memory–ROM that can be erased with an electrical signal and reprogrammed EISA extended industry standard architecture DAQMeter DAQCard-4050 User Manual © National Instruments Corporation...
- Page 48 International Business Machines integrated circuit identification International Electrotechnical Commission IEEE Institute of Electrical and Electronics Engineers inches input bias current the current that flows into the inputs of a circuit © National Instruments Corporation DAQMeter DAQCard-4050 User Manual...
- Page 49 1,000, or 10 , used with units of measure such as volts, hertz, and meters kilo—the prefix for 1,024, or 2 , used with B in quantifying data or computer memory DAQMeter DAQCard-4050 User Manual © National Instruments Corporation...
- Page 50 , when used with B to quantify data or computer memory megabytes of memory National Bureau of Standards NI-DAQ National Instruments driver software for DAQ hardware NMRR normal mode rejection ratio—a measure of an instrument’s ability to reject a signal applied directly to the differential inputs of the instrument noise an undesirable electrical signal—Noise comes from external sources...
- Page 51 Resolution can be expressed in bits or in digits. The number of bits in a system is roughly equal to 3.3 times the number of digits. DAQMeter DAQCard-4050 User Manual © National Instruments Corporation...
- Page 52 © National Instruments Corporation DAQMeter DAQCard-4050 User Manual...
- Page 53 DAQMeter DAQCard-4050 User Manual G-10 © National Instruments Corporation...
- Page 54 EMF, 3-4 to 3-5 National Instruments application DC voltage specifications (table), A-1 software, 1-2 to 1-3 aperture time, 3-2 VirtualBench software, 1-3 attenuation of signals, 3-3 unpacking, 1-5 DAQMeter DAQCard-4050 Instrument Driver, 1-3 to 1-4 © National Instruments Corporation DAQMeter DAQCard-4050 User Manual...
- Page 55 National Instruments documentation, xi cables and probes, 2-3 to 2-4 organization of manual, ix-x configuration, 2-4 related documentation, xi procedure, 2-2 safety precautions, 2-1 to 2-2 unpacking the DAQMeter DAQCard-4050, 1-5 DAQMeter DAQCard-4050 User Manual © National Instruments Corporation...
- Page 56 (RMS) value of signal, 3-5 AC voltage, A-3 DC voltage, A-1 safety precautions, 2-1 to 2-2 safety specifications, A-4 operation of DAQMeter DAQCard-4050. See settling time, A-4 DMM operation. signal connections overrange current measurement, 3-12...
- Page 57 3-2 to 3-8 AC voltages, 3-5 to 3-8 AC voltage offset, 3-8 accuracy considerations, 3-6 to 3-8 crest factor, 3-7 frequency response, 3-6 to 3-7 input ranges, 3-5 to 3-6 true RMS method, 3-5 DAQMeter DAQCard-4050 User Manual © National Instruments Corporation...
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