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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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Calibrators and Simulators |
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Calibrators |
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Part No: CC-421 |
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Current /Voltage Calibrator. 0 to 24 mA, (2 ranges), -199.9mV to 199.9 mV. 4 function— Current source with reading, power and measure of 2 wire loop, mV source. |
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Lutron |
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Part No: CC-422 |
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Current Calibrator, 0— 24mA (2 ranges), Precision current source. Drives up to 500 ohms |
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Part No: SC-942 |
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Sound Calibrator, 1 Khz, / 94dB & 114dB |
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Lutron |
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Lutron |
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Part No: TC-920 |
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Thermometer and Calibrator, Type K, -199 to 1230 degC. C/F, Data Hold , RS232 |
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Lutron |
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Fluke Models 725, 726. Two separate Channels. Measure, Source and View Process Signals, Volts, mA, RTD’s, Thermocouples, Freq., Resistance.
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Fluke mA Clamp Meter Measures 20mA loop Current Accurately without Breaking Loop Reducing Downtime of Plants, with Detachable Clamp.
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Fluke Models 787, 789. Combine DMM and Loop Calibrators, with Built-in 24 V Loop Supply with Optional FlukeView Software for Graphical Analysis.
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T + M ® |
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Notes on Thermocouples & RTD Simulators. Thermocouple simulators and RTD simulators provide precise standard values of resistance or voltage for simulation and calibration. Thermocouples are bimetallic temperature probes used in a variety of temperature sensing applications. Resistance temperature detectors (RTDs) are wire windings or other thin-film serpentines that exhibit changes in resistance with changes in temperature. RTD simulators provide a resistance value simulating the output of a resistance temperature detector (RTD) at a particular temperature. In some cases, resistance decade boxes can be used as RTD simulators. Thermocouple simulators provide a voltage value simulating the millivolt (mV) drop output of a thermocouple at a particular temperature. Some voltage sources can be used as thermocouple simulators. Selecting thermocouple simulators and RTD simulators requires an analysis of performance specifications such as temperature resolution and simulation type. The types of temperature-sensing devices that can be simulated include K type thermocouples, J type thermocouples, E type thermocouples, T type thermocouples, platinum RTDs, copper RTDs, nickel RTDs, and proprietary devices. Additional considerations include number of decades and temperature coefficient, the rate at which the nominal resistance value changes as a function of temperature. With thermocouple simulators and RTD simulators, temperature coefficient is expressed in parts per million per degree Celsius (ppm/C). Thermocouple simulators and RTD simulators differ in terms of resistance specifications and voltage specifications. Resistance specifications include resistance range and resistance resolution per step. Resolution is the digital value represented by one bit in the display of a digital measure. For example, a decade box where one bit on the display represents 10 amps has a resolution of 10 amps. Voltage specifications for thermocouple simulators and RTD simulators include voltage range, voltage resolution per step, and voltage accuracy. Like resistance resolution, voltage resolution is the digital value represented by one bit in the display of a digital measure. Thermocouple simulators and RTD simulators provide many different features. Some products offer calibration that can be traced to the National Institute of Standards and Technology (NIST). Others have low values of zero, residual impedance resistance, inductance or capacitance. Programmable thermocouple simulators and RTD simulators have a computer interface for programming, control or data acquisition. Stand-alone devices are packaged in a case with binding posts. Rack mounted devices have options for both front and rear outputs. |
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Part No: MS7212 |
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Calibrator Source V, mA, Ohms, and Frequency. Measures: V, mA, Ohms, Frequency & Temperature. 40000 Counts, RS232 and Software |
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T + M® |
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Part No: CC-MA |
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4-20MA Simulator. Simulated ranges: 4mA,12mA,20mA Accuracy:0.2 mA. Easy Operation, Compact Lightweight, Overload indicator. |
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T + M® |
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Calibrators for Current 4-20mA, Voltage, RTD’s, Temperature, Frequency, Sound, Thermocouples, Resistance and others. |
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Copyright © 2009—2012 Test and Measurement Instruments C.C. | All rights reserved Calibrators & Simulators |