TPI Digital Clamp on Meter

The TPI 270 with slim jaw and body is ideal for use in cramped work areas and crowded electrical panels. Capture in-rush current using peak hold mode. The 270 is cULus approved.

Slim jaw and body BenefitSafe and easy to use in crowded electrical panels

Analog peak hold to capture in-rush current BenefitAccurately capture actual peak in-rush current

Relative mode BenefitEnables temperature differential and low resistance measurements to be performed

Non-contact voltage detection BenefitConfirm voltage is present (24VAC or more) without using the test leads.

Capacitance BenefitMeasure motor run and start capacitors

0.1 millivolt DC resolution BenefitAccurately measure thermocouples

Frequency BenefitMeasure and adjust variable speed drives

AC/DC volts up to 600V and AC amps up to 400 BenefitEnough range to safely perform measurements

Temperature function BenefitMeasure temperature in ducts and rooms

DC microamps BenefitMeasure flame safety current

Auto power off BenefitIncreases battery life by turning off the tester when not in use.

CAT III 600V rated BenefitSafety for the operator and meter.

Diode, resistance, and audible continuity

4000 count display with 41 segment analog bar graph

Specifications

DC Voltage Max Range:600V Max Resolution:0.1mV Basic Accuracy: 0.5%

AC Voltage Max Range:600V Max Resolution:0.1mV Basic Accuracy: 1.2%

DC Amps N/A

DC Microamps Max Range:400uA Max Resolution:0.01uA Basic Accuracy: 3%

AC Amps Max Range:400A Max Resolution:0.1A Basic Accuracy: 3%

Resistance Max Range:40MΩ Max Resolution:0.1Ω Basic Accuracy: 1%

Frequency Max Range:400MHz Max Resolution:0.1Hz Basic Accuracy: 1%

Capacitance Max Range:40mF Max Resolution:0.001nF Basic Accuracy: 1%

Temperature Max Range:1000°F Max Resolution:0.1°F Basic Accuracy: 1%

Non-Contact Voltage (NCV) 24VAC and above

Continuity Buzzer <35Ω

Diode Test 1.5mA Max

True RMS Response No

Peak Hold Yes

Relative Mode Yes

Min/Max Record Yes

Data Hold Yes

% Total Harmonic Distortion No

Range Selection Auto / Manual

Display Type 4000 count LCD with analog bargraph

Operating Temperature 32°F to 113°F

Relative Humidity 80% non-condensing

Storage Temperature -4°F to 140°F

Battery Type 9V (MN1604)

Battery Life 80hrs typical

Auto Off / Sleep Mode Yes

Dimensions (H x L x W) 1.3” x 10” x 2.5”

Weight 0.8lb

Agency Approval CE IEC 61010: CAT III, 600V cULus 61010

Applications

Measure flame safety control current

Test start and run capacitors & motors

Measure motor run current and capture peak motor start up and amperage

Measure heat anticipator current

Determine thermocouple voltage

Test line and control voltage

Measure air temperature in ducts

Test for the presense of voltage in circuits without contacting the circuit

Measure temperature differential using relative mode

The TPI 270 clamp-on meter has a high input impedance of 10 Megohms to prevent circuit loading, permit the use of optional adapters, and ensure accurate measurements.

This beneficial feature, along with the DC millivolt range being part of the DC volt function and not isolated on a separate range, causes the 270 to display a non-zero or “floating” reading when the inputs are open circuit.

This floating reading has no affect on accuracy when making measurements because an open input is a floating condition and not a zero volt input state. When the inputs are shorted, the 270 will display zero (±2 counts). When the inputs are connected to a voltage the 270 will display the applied voltage accurately.

CLAMP-On FAQs

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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