• 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
• 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

The 275 comes complete with the following accessories:

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

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

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

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