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293 Clamp-On DMM with True RMS

Digital Clamp-On Meter Amp Plus. The 293 is a clamp-on plus DMM with True RMS capabilities.

The 293 offers measurements in all basic electrical functions plus:

  • True RMS: Provides accurate and dependable readings of non-linear loads.
  • Bar Graph: When measuring frequency, bar graph indicates current level.
  • TRIM Mode: Smooths out unstable readings.
  • Peak Mode: For start-up and inrush currents.
  • Sleep Mode: Preserves battery life
  • Data Hold: Holds the reading on the display for easy viewing.
  • True RMS 700 Amps AC
  • Measure AC/DC volts, resistance and continuity
  • Peak hold function
  • Data hold
  • CAT III 600 V rated
  • cULus 61010
  • 3-year limited warranty

Product Documentationpdf-icon1

Click below to view or download product documentation PDFs:

Digital Clamp-On Meter Sheet

293 Manual

£99.00 RRP exc. VAT

Where to Buy TPI Products

The 293 is a clamp-on plus DMM with True RMS capabilities. The 293 offers measurements in all basic electrical functions, plus:

  • True RMS: Provides accurate and dependable readings of non-linear loads.
  • Bar Graph: When measuring frequency, bar graph indicates current level.
  • TRIM Mode: Smooths out unstable readings.
  • Peak Mode: For start-up and inrush currents.
  • Sleep Mode: Preserves battery life.
  • Data Hold: Holds the reading on the display for easy viewing.

The 293 comes complete with the following accessories:

  • Carrying Pouch
  • Test Lead Set
  • Instruction Manual
  • Battery

Standard Accessories

  • A009A 9 Volt Alkaline Battery
  • A040 Test Lead Set
  • A200 Soft Carrying Pouch

Optional Accessories

  • SDK1C Deluxe Test Lead Set
  • TLS2000BC IEC 1010 Deluxe Test Lead Kit
  • A201 Hard Carrying Case

 Model 293 Specifications
 Range Selection  Auto/Manual
   
 Display Specifications  4,000 Count
 Analog Bar Graph
   
 Basic Features  AC Volts
 DC Volts
 AC Amps
 Resistance
 Diode Test
 Audible Continuity
   
 Basic DC Accuracy  0.75%
 DC Voltage (maximum)  750V
   
 Resolution (maximum)  0.01V
 AC Voltage (maximum)  750V
   
 Resolution (maximum)  0.01V
 Resolution (maximum):  0.01A
   
 AC Amps (maximum)  700A
 Resolution (maximum):  0.01A
   
 Resistance (maximum)  40KΩ
 Resolution (maximum):  0.1Ω
   
 Frequency (maximum)  10KHz
 Resolution (maximum):  0.1Hz
   
 Agency Approval:  CEIEC 1010: CATIII; 600V cULus 61010
   
 Overall Dimensions:  40mm x 190mm x 65mm
 (1.5in x 7.25in x 2.5in)
   
 Weight: 315g (11.1oz)

TPI Model 293 Demonstration Video

Model 293 Applications


  • Heat anticipator current in thermostats
  • Line voltage
  • Control circuit voltage
  • Heating element resistance
  • Compressor winding resistance
  • Contactor and relay coil resistance
  • Motor and compressor start up current
  • Continuity of wiring
  • Frequency on control and line voltage
  • Record/Min/Max voltage of controls and line voltages
  • Bar graph to indicate rapid fluctuations

Perform the following tests and/or measurements with the 293 and the appropriate function:

HVAC/R
DCmV • Thermocouples in furnaces.
ACA • Heat anticipator current in thermostats.
ACV • Line voltage.
ACV or DCV • Control circuit voltage.
OHMS • Compressor winding resistance.
OHMS • Continuity of wiring.
CAP • Motor start and run capacitors.
ACA • Motor and compressor start up current.
Hz • Frequency on controls and line voltage.

ELECTRICAL
ACV • Measure line voltage.
ACA • Measure line current.
OHMS • Continuity of circuit breakers.
DCV • Voltage of direct drive DC motors.
ACA • Start up current of motors, relays,  contactors and transformers

ELECTRONIC
ACV • Measure power supply voltage.
ACA • Measure power supply current.
OHMS • Continuity of circuit breakers and fuses.

Frequently Asked Questions


1. How does the non-contact voltage feature of the TPI 270 and 275 benefit me?

The non-contact feature of the TPI 270 and 275 allows you to detect live circuits without using the test leads, which enables faster checks for the presence of voltage.

2. Which of the TPI clamp-on meters will measure temperature?

The 270 and 275 have this feature built in and the 255, 265, and 291 can measure temperature by using the optional A301 or a A312 K-type thermocouple adapters.

3. Which TPI clamp-ons can measure DC microamps?

The TPI 270 and 275 has the capability to measure DC microamps by using the test leads. This is very useful for making flame safety control current measurements. The 265 can measure DC microamps with the optional A213 adapter.

4. Does a clamp-on meter measure anything besides amps?

All TPI clamp-on meters measure AC/DC volts and resistance. Models are available with temperature, frequency, capacitance, and non-contact voltage detection capability as well as many other features. Various adapters including temperature (A301 or A312), carbon monoxide (A771), and pressure (A620/630) are available. Contact TPI for additional information.

5. Is it possible to measure AC amps on a device that uses a power cord?

Yes, to accomplish this you can use the TPI line splitter (A202). AC amps must be measured by isolating a single wire and the A202 line splitter does this without damaging the power cord.

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