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T.M.I.

Test and Measurement Instruments C.C.

          CK 1985/007464/23

“Tomorrow’s Instruments Today”  —  “For Good Measure” ®

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Milliohm Meters

Milliohm Meters

Part No:  MO-2001

200m/2000m/20/200/2000/20,000 ohm, 4 terminal input high accuracy, handheld, portable

Lutron MO-2001 Digital Milliohm Meter

Part No:  MO-2002

Bench Type, 0.01mohm to 20Kohm(7 ranges) 4 terminal input with LED display.

Lutron MO-2002 Bench Type Digital Milliohm Meter

Lutron

Lutron

Lutron MO-2002 Bench Type Digital Milliohm MeterLutron MO-2001 Digital Milliohm MeterLutron MO-2001 Digital Milliohm MeterLutron MO-2002 Bench Type Digital Milliohm Meter

Notes on Milliohm Meters.

Milliohm meters are capable of measuring very small resistances. Devices which use a four-wire Kelvin probe system pass a test current through the probe so that the voltage is sensed by the center pin. This test method eliminates contact resistance and minimizes the possibility of errors caused by the resistance of the leads. By definition, resistance or impedance is a measure of the degree to which a material or device opposes the flow of current. This value is equal to the voltage drop across the element divided by the current through the element. As their name suggests, milliohm meters measure resistance in milliohms, a unit of measure which equals 1/1000 of an ohm.  

Milliohm meters carry specifications for bandwidth, sampling rate, maximum channels, and operating temperature, as well as display type and display digits. Bandwidth is the frequency range for AC current or voltage to be measured. Sampling rate is the frequency that a digital meter tests an analog signal and converts it to a digital value. Maximum channels are the total number of channels for the device. Operating temperature is the full required range of temperatures over which milliohm meters operate. There are two choices for display type: analog and digital. Analog devices usually display values with a needle. Digital devices have an electronic display. For milliohm meters, the number of display digits ranges from 3 to 7 or more. Devices that can display a half-digit are also available. 

Milliohm meters are available in several different form factors. Benchtop meters are designed to sit atop a bench or table. Free-standing devices have a full case or cabinet and an integral interface. Milliohm meters that function as clamp meters measure current through wires that are connected to the circuit. Rack-mounted devices include hardware such as rail guides, flanges and tabs. Handheld milliohm meters are relatively lightweight and can be operated while held in the hand. Devices with a computer-board form factor are printed circuit boards (PCBs) that plug into motherboards or backplanes. Milliohm meters with other form factors are also available.  

Standards, options and features are important parameters to consider when specifying milliohm meters. Some products have an adjustable sampling rate, alarm lights, auto-ranging capabilities, and integral application software. Others feature data acquisition, data storage or logging, decibel reading, and external triggering capabilities. External shunts can be used to extend the current input range. Integrating functions allow the active power and current to be integrated. Mirrored scales facilitate readings to a given accuracy and help operators avoid parallax errors. Range switches can be used to select the range of units to measure. Milliohm meters with overload protection, filters, scaling functions, and temperature compensation are also available.

 

On Digital Resistance Meters.

Digital resistance meters are instruments that measure electrical resistance. They use solid-state components and display values digitally. Resistance, which is measured in ohms, is the opposition to the flow of electric current of a conductor. Typically, digital resistance meters are powered by an internal battery that applies a small voltage to the circuit being tested. The positive lead is connected to the circuits positive side and the negative lead is connected to the circuits ground. The current is then measured and the resistance calculated. Zero resistance indicates a short. Infinite resistance indicates an open. Often, resistance readings that exceed product specifications are caused by a faulty component or problems such as burnt contacts, corroded terminals, or loose connections. To maintain accuracy, digital resistance meters require regular calibration that consists of connecting the two leads together and zeroing the meter with the adjustment knob.

Digital resistance meters typically display between three and seven digits along with a leading number such as 0 or 1. Four-wire systems minimize voltage drops in the test leads and record highly accurate measurements. Some digital resistance meters are used to monitor devices such as resistance temperature detectors (RTDs) or thermocouples. Others are used to monitor electronic components such as transistors or diodes. Benchtop, rack mounted, and handheld devices are commonly available. Battery powered units do not require plug-in power. Digital resistance meters with audibility continuity beep when the probes touch. Devices with analog bar graph capabilities display status readings such as battery power, signal level, and continuity.

Digital resistance meters interface to computers and include integral monitoring software for applications such as data acquisition. Programmable digital resistance meters allow users to set values that trigger monitoring routines. Data storage, logging, and removable data storage devices are often available. Some digital resistance meters allow users to adjust the sampling rate or provide internal memory. Others include an auto-ranging feature that automatically adjusts the measurement range. Output options include general-purpose interface bus (GPIB), binary coded decimal (BCD), and digital-to-analog (DA). RS232 is a standard communication protocol for serial ports. IEEE 488 is a standard communication protocol for parallel ports.

Test and Measurement Instruments C.C. T+M Instruments

Milliohm Meter, Bench Type, 0.001mohm to 20Kohm     (7 ranges) 4 terminal input with LED display. RS232/USB Computer Interface, Large Backlit LCD Readout.

Lutron MO 2013 Milliohm MeterLutron MO 2013 Milliohm Meter
Lutron MO 2013 Milliohm Meter

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Milliohm Meters

Part No:  KV-05

Kelvin Clips, Professional. Two Alligator Clips with 4 Banana Plugs, cable length of 90cm. It is a Standard Accessory to MO-2001, MO-2002 Milliohm Meters.

Lutron KV-05 Kelvin Clips.

Lutron

Lutron KV-05 Kelvin Clips.
Lutron KV-05 Kelvin Clips.

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Part No:  MO-2013

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Brand Names

Accessories    

Adaptors

Air Quality Meters

Alcohol Breath Tester

Alignment Equipment

AM & FM Signal Generators

Anemometers

Audio Generators

Audio Impedance Meter

Automotive testers

Balances

Barometers

Battery Analyser /

Battery Desulphator Charger

Bench DMM’s

Borescopes

Bread Boards

Breath  Alcohol Tester

Cable Fault Locators

Cable Height Meter

Cable Testers

Calibrators

Capacitance meters

Carbon Dioxide meters

Carbon Monoxide meters

Car Testers

Caster / Camber Gauges

Chlorine Meter

Clamp meters

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Colour Analysers

Combination Combo Meters

Concrete Testing

Conductivity  / TDS meters

Contact Tachometers

Continuity Tester

Controller / Monitors

Corner Weight Scales

Current Meters, Bench Type

Data Acquisition Systems

Data Loggers

Decade Boxes

Dew Point Meters

Digital Vernier Calipers

Digital Scales

Digital Multimeters , DMMs

Dissolved Oxygen Meters

Distance Meters

Dust Monitoring

Earth resistance meter

Educational Systems

Electrical Connectors

EMF tester

Eye Tracker

Field Strength Meters

Force gauge

Frequency Counter

Function Generators

GSM Controller

Gas leak detector

Green Hybrid Power

Grid Dip Meter

Hardness tester

HV(High Voltage) Testing

Humidity meter

Hygrometers

Inductance Decade Box

Infrared Thermometers

Infrared Thermography

Inverters

Insulation tester

LCR meter

Leakage Clamp Meters

Logic Analyser

Logic Probes/Pulsers

Lux meter, (Light meter)

Manometer

Metal Detector

Micrometer

Microwave Leakage

Milliohm meter

Miscellaneous

Moisture meter

Multimeter

Night Vision Equipment

ORP meter

Oscilloscopes

Oxygen Meters

Pattern generators

Panel meter

PC-Based Instruments

Pen type tester

pH Meters and Probes

Photo Tachometer

Power analyzer

Power clamp meter

Power Supplies

Pressure/Vacuum meter

3 Phase Rotation Tester

Pressure Transducer

Probes, Oscilloscope

Protection Relay Testing

Proximity sensor

Racing Equipment

RCCB tester

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Renewable Energy

RF Generators

Resistance Decade Box

Roughness tester

Rheostats

Salt meter

Satellite Testing Equipment

Security

Scales, Digital

Shore Hardness Tester

Simulators

Soil Moisture Meters

Soil pH meter

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Software

Sound level meter

Spectrum Analyser

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Student Bench Meters

Stun Guns

SWR / RF Power Meters

Tachometer

TDS / Conductivity Meters

Test Leads

Thermal Imagers

Thermography

Thermometer

Thermography Courses

Thickness Testers

Tone Generator/ Tracer

Torque meter

Torque wrench

Transformer Testing

Transient Suppressors

Transmitters

TV & Satellite Meters

Turbidity Meter

Ultrasonic Flaw Detector

Ultrasonic Thickness

UV light meter

Vacuum meter

Variable Transformers

Verniers, Micrometers

Vibration meter

Video Scope

Watt meter

Water Tester

Water Testing Meters

Vacuum/Pressure meter

Voltmeters, Bench Type

Voltage Detectors

Voltage Regulators

5 Way® Binding Posts

Voltage Stabilisers

T + M®                      

Lodestar

ElektroPhysik          

Promax                   

Time Group

TECPEL

S.E.W. Standard Electric Works

MSR Electronics

Superior Electric

Danatronics

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30th anniversay of Test and Measurement Instruments c.c.

Ph:           +27 (011) 683 4365

Fax:          +27 (011) 683 4461

E-mail:     t.m.i@iafrica.com

www.instrumentsgroup.co.za

 

NEW  Address:

(from 6 January 2016)

Physical   Address:              

3 Angelica Ave,

Glenvista, Johannesburg, 2091

SOUTH AFRICA

 

Postal Address:

P.O. Box 1416,

Southdale,

Johannesburg, 2135,

SOUTH AFRICA

See Also Micro-Ohm Meters

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FLIR E5 (120 x 90 Pixels)

 

R 19,950.00 + VAT

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Also: Thermal Imagers

FLIR E4 Thermal Camera