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Clamp-on Meters (Current)   Model 275
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Clamp-On Tester with True RMS Digital Multimeter & 11,000 Count Display. The new TPI 275 with slim jaw and body is ideal for cramped work areas and crowded electrical panels.

Measure DC amperage of motor drive units
 
Measure flame safety control current
 
Test run and start capacitors and motors
 
Measure motor run current and capture peak motor start up amperage
 
Measure heat anticipator current
  
Determine thermocouple voltage
 
Test line and control voltages
 
Measure heating element resistance
 
Measure air temperature in ducts
 
Test for the presence of voltage in circuits without contacting the circuit
 
Measure temperature differential using relative mode
 
 

  

  

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275 Clamp-On Tester with True RMS Digital Multimeter and 11,000 Count Display

TPI offers a full line of digital clamp-on meters for electrical, commercial, HVAC/R, industrial and process control applications.


• True RMS
• 11,000 count display
• Up to 400 amps AC/DC
• Auto & Manual Ranging
• Data Hold
• Low Battery Indicator
• Over Range Indication (“OL”)
• Peak Hold
• Min/Max
• Relative Mode
• Hi Voltage Indicator(>30V AC/DC)
• Non-contact voltage detection
• Auto Power Off after 30 minutes
• Separate Battery Compartment
• Low Ohm Range (110V)
• Amps AC Resolution: 0.01A
• VDC/VAC Resolution: 0.01mV
• DCìA measurement (0.01mA resolution)
• Temperature measurement

RoHS Compliant

Download Data Sheet PDF

Product Description

The slim design 275 is a hand-held, autoranging clamp-on DMM. Extra large numerals, min/max, capacitance, DC microamps and duty cycle are just a few of the features of the 275. An affordable choice, the 275 offers measurements in all basic electrical functions with additional advanced features like non-contact voltage.


The 275 comes complete with the following accessories:


• Carrying Pouch
• Test Lead Set
• Temperature Probe
• Instruction Manual
• Battery & Fuse

Product Applications


Perform the following tests and/or measurements with the 275 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.
TEMP • Air duct temperatures
ALL • Bar graph to indicate rapid fluctuations

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.

Download Product Manual PDF

Model 275 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
Max Range:400A
Max Resolution:0.1A
Basic Accuracy: 3%

DC Microamps
Max Range:1100uA
Max Resolution:0.01uA

Basic Accuracy: 0.8%
AC Amps
Max Range:400A
Max Resolution:0.1A
Basic Accuracy: 3%

Resistance
Max Range:110MΩ
Max Resolution:0.1Ω
Basic Accuracy: 1%

Frequency
Max Range:110MHz
Max Resolution:0.1Hz
Basic Accuracy: 1%

Capacitance
Max Range:110mF
Max Resolution:0.001nF
Basic Accuracy: 3%

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

Non-Contact Voltage (NCV): 24VAC and above

Continuity Buzzer: <35Ω

Diode Test: 1.5mA Max

True RMS Response: Yes

Peak Hold: Yes

Relative Mode: Yes

Min/Max Record: Yes

Data Hold: Yes

% Total Harmonic Distortion: No

Range Selection: Auto / Manual

Display Type: 11000 count LCD

Operating Temperature: 32°F to 104°F

Relative Humidity: 80% non-condensing

Storage Temperature: 14°F to 122°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

Model 275 Applications

Measure flame safety control current
 
Test start and run capacitors and motors
 
Measure motor run current and capture peak motor start up amperage
 
Measure heat anticipator current
 
Determine thermocouple voltage
  
Test line and control voltages
 
Measure heating element resistance
 
Measure air temperature in  ducts
 
Test for the presence of voltage in circuits without contacting the circuit
 
Measure temperature differential using relative mode
 


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.


TPI Model 275 Demonstration Video



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