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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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Digital Panel Meters |
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Panel Meters |
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Part No: DR-99DCV |
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DC Voltmeter, 3,5 digit LED, 199,9mV to 600V (5 Ranges) |
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Part No: DR-99ACV |
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AC Voltmeter, 3,5 digit LED, 199,9mV to 600V (5 Ranges) |
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Lutron |
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Lutron |
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Part No: DR-99DCA |
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DC Ammeter, 3,5 digit LED, 199,9uA to 10Amps (6 Ranges) |
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Part No: DR-99ACA |
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DC Ammeter, 3,5 digit LED, 1,999mA to 10Amps (5 Ranges) |
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Lutron |
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Lutron |
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Part No: DR-99TEMP |
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Temperature Meter, 3,5 digit LED, -50 to 1300C, Type K, C/F |
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Part No: FC-422D |
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Frequency Meter, 4 digit LED, 0.5 to 500.0Hz |
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Lutron |
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Lutron |
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Part No: DT-2240D |
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Tachometer, 4 digit LED, 5 to 100,000RPM |
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Part No: DP-30 |
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DC Voltmeter,3,5 digit LCD,199,9mV Size:71x46x21mm |
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Lutron |
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Lutron |
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Accessories |
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Part No: DP-40 |
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DC Voltmeter,3,5 digit LED,199,9mV Size:71x46x21mm |
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Lutron |
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Part No: PX-01 |
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Proximity Sensor, 12 to 24 Volts, Output: 12 Volts DC, 100mV, Detecting Distance: 4 mm (Metal) (For DT2240D, TR-RPM1A4 etc., ) |
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Lutron |
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Part No: PI-06 |
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Photo Sensor, Supply :12 to 24 Volts, For DT2240D, TR-RPM1A4 etc., Photo Interrupter , 3 wires Power, Signal and Ground. |
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Lutron |
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T + M ® |
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Notes on Digital Panel Meters. Digital panel meters measure and display all types of processes and electrical variables, such as pressure, flow, temperature, speed, current and voltage in an alphanumeric or numeric format, often as a bar graph. Many of these displays have totalizing, recording, conditioning, and other functionalities. Display types for digital panel meters can be either alphanumeric or numeric only. Alphanumeric displays can display both numbers and letters. They are either a sixteen-segment display or a 5x7 dot matrix display. Numeric displays can display numbers only. They are either a seven-segment display or a 4x7 dot matrix display. When specifying a digital panel meter it is important to specify the number of digits displayed. Common character sizes for digits on digital panel meters include 0.37 inches to 0.56 inches, larger than 0.56 inches and less than 0.37 inches. The most important parameters to consider when specifying digital panel meters are the dimensions. Most digital panel meters are configured to be mounted into a rack or panel, so the face height and face width are important considerations. Features common to digital panel meters include set point options, alarms, on/off control, bargraph display and adjustable display. A digital panel meter that has set point options has the ability to set control limits or set points for process parameters such as speed, temperature, pressure or humidity. In a heating application, the unit sends an off control signal when the set point temperature is approached or exceeded and an on control signal when the temperature drops below the set point. Limit (on-off), linear (proportional, PID) or other non-linear control technologies can be used to generate the control signal. A panel meter that has on/off control has the ability to send an on-off output signal to activate or deactivate a process unit (oven, motor, fan, etc.) utilizing relays, open collector transistors or other technologies. On-off, bang-bang or limit control is one of the simplest techniques for process control. Inputs to digital panel meters can be one of many types. These include but are not limited to, AC voltage, AC current, AC power, DC voltage, DC current, DC power, strain gauge, resistance and temperature. Many digital panel meters are configured to accept multiple inputs and have adjustable displays to switch between these inputs. Output types available for digital panel meters include serial communications such as RS232, relay outputs and analog outputs. Analog outputs are used in applications that require digitally controlled output voltages usually within the range of 10 V or less, and at current levels below 10 mA. The heart of an analog output channel is a digital-to-analog converter (DAC), which converts a digital code into a voltage level. The output of the DAC is then processed or conditioned to produce the required output signal characteristics. |
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4-20mA and 0-20mA inputs. 57, 100 or 180 mm Digits. 3 1/2 or 4 digit programmable. Supply Voltages: 24VDC or 220V,110VAC.Weatherproof IP65 Versions available. |
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T + M® |
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4-20mA and 0-20mA inputs. 57, 100 or 180 mm Digits. 3 1/2 or 4 digit, programmable. 0-10V, B.C.D. etc. Decimal Point selectable. Weatherproof IP65 Versions available. Supply Voltages: 24VDC or 220V,110VAC. Weatherproof IP65 Versions available. |
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T + M® |
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Copyright © 2009—2012 Test and Measurement Instruments C.C. | All rights reserved Digital Panel Meters |