A Leading South African Test and Measurement Instruments Supplier

“For Good Measure”®

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Product List


Test and Measurement Instruments C.C.

          CK 1985/007464/23

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

TMI, Established—1982

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English, Afrikaans and Portuguese   Speaking

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3 Phase Rotation Meters

Phase Rotation Meter

Part No:  RT-606   

Input Voltage: 100VAC to 660VAC, 3 Min limit over 500VAC

Lutron RT-606 3 Phase Rotation Meter

Part No:  RT-608   

Phase Rotation and Motor Rotation Field Tester               100VAC to 660VAC, 3 Min limit over 500VAC

Lutron RT-608 Phase Rotation Meter



Lutron RT-606 3 Phase Rotation MeterLutron RT-608 Phase Rotation Meter
Lutron RT-606 3 Phase Rotation MeterLutron RT-608 Phase Rotation Meter

Notes on Phase Rotation Meters.

Phase Rotation Meters (phase testers, phase rotation meters) are used to check the phase sequence and phase orientation in three-phase electrical systems. They are used for energy measurements, and the monitoring for the quality of audio and video transmissions. Correct phase matching is also important in energy metering applications since phase mismatches between channels may cause significant measurement errors at low power factors. Bandwidth, sampling rate, maximum channels, and operating temperature are important parameters to specify when selecting phase meters. Bandwidth is the frequency range over which current or voltage is measured. Sampling rate is the frequency that a digital meter tests an analog signal and converts to a digital value. 

General specifications for phase meters, phase testers and phase rotation meters include display type and form factor. There are two choices for display type: analog and digital. Form factors are listed as bench or free-standing, clamp meter, rack-mounted, handheld, or computer compounds. Benchtop phase meters are designed to sit atop a bench or table; or are free-standing units with a full casing, cabinet, and integral interface. Phase meters that function as clamp meters can measure current through wires that are still connected to a live circuit. Rack-mounted electrical test equipment is designed for mounting in telecommunications racks and includes hardware such as rail guides, flanges and tabs. Handheld devices are designed for use while held in one hand. Phase meters with a computer-board form factor are printed circuit boards (PCBs) that plug into computer backplanes or motherboards. 

Phase meters, phase testers and phase rotation meters may bear quality marks and comply with national or international standards for safety and performance. The CE Mark indicates that product complies with the relevant European Union (EU) directives and upholds recognized standards for health, safety, and environmental protection. These standards include the requirements defined in the EU’s Restriction of Hazardous Substances (RoHS).

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

Copyright  © 2009—2018 Test and Measurement  Instruments C.C.   |  All rights reserved

3 Phase Rotation Meters

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Brand Names



Air Quality Meters

Alcohol Breath Tester

Alignment Equipment

AM & FM Signal Generators


Audio Generators

Audio Impedance Meter

Automotive testers



Battery Analyser /

Battery Desulphator Charger

Bench DMM’s


Bread Boards

Breath  Alcohol Tester

Cable Fault Locators

Cable Height Meter

Cable Testers


Capacitance meters

Carbon Dioxide meters

Carbon Monoxide meters

Car Testers

Caster / Camber Gauges

Chlorine Meter

Clamp meters

Clearance Sale:

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


Inductance Decade Box

Infrared Thermometers

Infrared Thermography


Insulation tester

LCR meter

Leakage Clamp Meters

Logic Analyser

Logic Probes/Pulsers

Lux meter, (Light meter)


Metal Detector


Microwave Leakage

Milliohm meter


Moisture meter


Night Vision Equipment

ORP meter


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


Renewable Energy

RF Generators

Resistance Decade Box

Roughness tester


Salt meter

Satellite Testing Equipment


Scales, Digital

Shore Hardness Tester


Soil Moisture Meters

Soil pH meter

Solar Power Meter


Sound level meter

Spectrum Analyser


Student Bench Meters

Stun Guns

SWR / RF Power Meters


TDS / Conductivity Meters

Test Leads

Thermal Imagers



Thermography Courses

Thickness Testers

Tone Generator/ Tracer

Torque meter

Torque wrench

Transformer Testing

Transient Suppressors


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

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Time Group


S.E.W. Standard Electric Works

MSR Electronics

Superior Electric


All brands, trade names, trade marks, and logos are the property of their respective owners.

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



NEW  Address:

(from 6 January 2016)

Physical   Address:              

3 Angelica Ave,

Glenvista, Johannesburg, 2091



Postal Address:

P.O. Box 1416,


Johannesburg, 2135,


3 Phase Rotation Meters are  used for checking the phase sequence on 3 phase power supply systems and are simple to operate but are very effective to ensure correct operation of equipment. It also testes for missing phases.

Part No:  RT-616   

Input Voltage: 100VAC to 660VAC, 3 Min limit over 500VAC.  45 to 70 Hz.  LCD Display.

Lutron RT-616 3 Phase Rotation Meter


Lutron RT-616 3 Phase Rotation Meter
Lutron RT-616 3 Phase Rotation MeterTMI Monthly Specials

This Month’s Special

Thermography—Thermal Imager— Infrared Camera.

FLIR E5 (120 x 90 Pixels)


R 21,150.00 + VAT

while stocks last. 


FREE Thermography

Introductory Course

Included with Lunch.


One Day Course.

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Also: Thermal Imagers

FLIR E4 Thermal Camera