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“Tomorrow’s Instruments Today” — “For Good Measure” ® |
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A Leading South African Test and Measurement Instruments Supplier |
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“For Good Measure”® |
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TMI, Established—1982 |
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Test and Measurement Instruments C.C. |
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Test our Service and Measure with our Instruments. |
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CK 85/07464/23 |
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Please contact us by phone, fax, email or visit us at the details given above. We look forward to hearing from you. |
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Product List |
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All brands, trade names, trade marks, and logos are the property of their respective owners. |
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Brand Names |
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T + M ® |
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English, Afrikaans and Portuguese Speaking No Credit Card Payments yet. |
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Ph: +27 (011) 683 4365 Fax: +27 (011) 683 4461 E-mail: t.m.i@iafrica.com
Physical Address: 1st Floor, TMI House, 37 Garden St, Cnr 160 Bellavista Rd, Turfclub, Johannesburg, 2135 SOUTH AFRICA
Postal Address: P.O. Box 1416, Southdale, Johannesburg, 2135, SOUTH AFRICA
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T.M.I. |
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This Month’s Special |
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Excess Stock to be cleared while stocks last. > Click for More... |
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Thermography—Thermal Imager— Infrared Camera. FLIR i3 — Smallest , Lightest, most affordable camera “point-shoot-detect”. Introductory Nett Price of R 11 990.00 + VAT while stocks last. |
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Bench Type Multimeters |
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Bench Meters |
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Part No TM1951 |
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5 1/2 Digit, True RMS, 12 diff measuring capabilities DCV/ACV/DCA/ACA/ohms/Freq/Period/Diode/Continuity/dB/dBm etc. Min/Max/Ave/STD statistics |
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Part No: TM1961 |
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6 1/2 Digit,True RMS, 12 diff measuring capabilities DCV/ACV/DCA/ACA/ohms/Freq/Period/Diode/Continuity/dB/dBm etc. Min/Max/Ave/STD statistics |
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T + M® |
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T + M® |
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Part No: TM8045 |
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4 1/2 Digit LCD True RMS display with backlight. Multifunction ACV/DCV/ACA/DCA/R/C/Hz/hFE/Diode test and continuity. High resolution. 0.05%DCV accuracy. |
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Part No TM8145 |
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4 3/4 Digit True RMS LCD display with backlight. Multifunction ACV/DCV/ACA/DCA/R/C/Hz/hFE/Diode test and continuity. High resolution. 0.03%DCV accuracy. |
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T + M® |
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T + M® |
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Part No: SW-U801WIN |
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Software, Windows 95/98, 8-channels, Data Logging Data record |
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Part No: UPCB-01 |
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Computer interface Cable for RS232 instruments Connecting earphone plug to instrument RS232 output, other side to COM terminal USB plug |
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Lutron |
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Lutron |
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Part No: UPCB-02 |
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Photo Coupled Isolated Interface Cable for all instruments using RS232 |
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Part No: USB-01 |
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RS232 cable with driver software for RS232 instruments. Earphone plug connects instrument RS232 output to USB terminal on computer. |
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Lutron |
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Lutron |
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Part No: DL-9601A |
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Paperless Data Logger/ Recorder with Real Time, 8000 Memory, Sampling Time (1sec to 8Hours) |
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Lutron |
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Accessories |
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Part No DM441B |
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4,5 Digit bench Type, True RMS, 20,000 Count, Accuraccy - 0.1%, Frequency, Data-Hold, Diode Test, Transistor Test, |
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E Z Digital |
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Part No: UPCB-04 |
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RS232 Cable, (Double Female D9 RS232 Cable) |
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Lutron |
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T + M ® |
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Notes on Digital Multimeters. Digital multimeters or DMM’s are instruments that are used to measure electrical quantities such as voltage, current, resistance, frequency, temperature, capacitance, and time period measurements. Basic functionality includes measurement of potential in volts, resistance in ohms, and current in amps. Multimeters are used to find electronic and electrical problems. Advanced units come with more features such as capacitor, diode and IC testing modes. Digital multimeters are generally bench top or handheld. Bench top models can also be portable by use of handles and wheels. Handheld multimeters are specifically designed to be used while holding, i.e. can be operated with one hand. Digital multimeters display information on a digital screen. Commonly they have between 3 and 6 digits, but some units come with larger screens that can display 7 or more digits. The fastest sampling rate is also important to consider. Specific measurements made by digital multimeters include DC voltage, AC voltage, DC current, AC current, resistance, capacitance, frequency range, time period, and special measurements. Special measurements include continuity check, audible continuity, diode test, maximum or minimum or peak spike measurement, RTD temperature measurement, thermocouple temperature, and transistor test. Continuity checks will give an indication to the user that a closed loop exists due to the probes touching each other. Digital multimeters with audible continuity will beep when probes are touching each other. Diode test will check to see if a diode is good or bad. Digital multimeters with maximum or minimum or peak spike measurement can measure and display when these events occur. Some multimeters are capable of measuring temperature with either an RTD or thermocouple probe. Multimeters with transistor test is capable of examining a transistor and telling the using where the emitter, collector, and base is located. When searching for digital multimeters it is important to consider the measurement range for whichever value is being measured. Common features for digital multimeters include battery power, analog bar graph, dB readings, auto-ranging, adjustable sampling rate, programmable, data acquisition, data storage and logging, removable data storage, and triggering. Devices with battery power can be operated without plug in power. Output options for digital multimeters include GPIB, IEEE 488, RS232, BCD, and D/A. An important environmental parameter to consider when searching for analog multimeters is the operating temperature. |
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Copyright © 2009—2012 Test and Measurement Instruments C.C. | All rights reserved Bench Digital Multimeters |