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Amprobe AMP-330 1000A AC/DC TRMS Clamp Meter
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Item Number: AMP-330
Manufacturer: Amprobe
Part Number: AMP-330
* Whole number only
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Amprobe AMP-330 1000A AC/DC TRMS Motor Maintenance Clamp Meter
For HVAC testing in high voltage industrial environments, the AMP-330 is ideal for measuring electrical motor maintenance. The clamp meter allows technicians to find the temperature and capacitance measurements needed, as well as DC Microamps for testing flame sensors. The unit boasts a motor rotation, inrush current measurement for motor start-up monitoring, and 3-phase sequence testing. Likewise, the Amp-Tip function provides meticulous measurement of current down to the tenth of an Amp. This enables precise current measurement of both large and small diameter wires.
Features
- Measures AC/DC Current to 1000 A and AC/DC Voltage to 1000 V
- Measures temperature from -40° to 752°F, (-40° to 400°C)
- Measures DC Microamps output to test proper operation of the flame sensor on gas appliances
- Measures capacitance, test diodes, and features a continuity beeper
- Tests 3-phase sequence and motor rotation to ensure proper connection of a motor to a 3-phase system
- Monitors inrush current during motor start-up
- Features True-RMS sensing for accurate voltage measurements in noisy electrical environments
- Amp-Tip function delivers precise low AC current measurements – 0 to 60 A
- Includes a low pass filter to accurately measure voltage and current on variable frequency drives
- Provides resistance and continuity measurement capabilities to verify the quality of electrical connections and the proper operation of motor and transformer coils
- Provides data hold, relative zero, and MAX/MIN/AVG mode for quick analysis
- Maximizes battery life with auto power off and low battery indicator
- Backlit display for easy measurement viewing in bright and dim environments
- CAT IV 600 V, CAT III 1000 V safety rated
- Boasts peak hold and work light
- Accommodates conductors up to 2.0 inches (51mm)
- Includes test leads, batteries (installed), alligator clip set, banana plug K-type thermocouple, carrying case, and user manual
Applications
  
- Accurate measurement of current, voltage and frequency on all electrical systems including distorted, non-sinusoidal signals (True-RMS function) and variable frequency drives (low-pass filter).
- Capacitance measurement for start and run motor capacitors.
- Resistance and continuity functions to verify quality of electrical connections and to check if motor and transformer coils are working properly.
- 3-phase Motor and Phase Rotation Tests allow proper connection of a motor to a 3-phase system. Improperly connected motors will spin in a reverse direction, which may destroy the motor or equipment connected to it.
- Low pass filter allows measurement of current and voltage on variable frequency drives (motors with speed controlled by frequency). Without this feature, the meter would provide erroneous readings when measuring voltage and current.
- DC Microamps output for measurement of flame sensors. Test the proper operation of the flame sensor safety system in gas appliances. A broken sensor in a gas appliance will prevent the safety valve from opening and the appliance will not work.
- Inrush current measurement for motor start-up monitoring, allowing users to verify that the motor is receiving the required inrush current to support proper motor start.
Technical Specifications
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Model
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AMP-310
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AMP-320
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AMP-330
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AC Clamp Meter
HVAC
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AC/DC Clamp Meter
Electrical Motor Maintenance
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AC/DC 1000 A Clamp Meter
Industrial Motor Maintenance
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Safety Rating
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CAT III 600 V
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CAT III 600 V
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CAT IV 600 V, CAT III 1000 V
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Jaw Opening
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1.18 in (30 mm)
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1.37 in (35 mm)
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2.0 in (51 mm)
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AC Voltage
(True-RMS)
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Range: 0 to 600.0 V
Accuracy: ±1.0% + 5LSD (50 to 60 Hz)
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Range: 0 to 1000 V
Accuracy: ±0.8% + 5LSD (50 to 60 Hz)
±1.5% + 5LSD (20 to 200 Hz)
±10% + 5LSD (200 to 400 Hz)
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DC Voltage
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Range: 0 to 600.0 V
Accuracy: ±1.0% + 5LSD
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Range: 0 to 1000 V
Accuracy: ±0.8% + 5LSD
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AC+DC Voltage
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–
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Range: 0 to 600.0 V
Accuracy: 1.2% ± 7LSD (DC, 50 to 60 Hz)
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Range: 0 to 1000 V
Accuracy: ±1.0% + 7LSD (50 to 60 Hz)
±1.8% + 7LSD (DC, 40 to 200 Hz)
±12% + 7LSD (200 to 400 Hz)
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AC Current
(True-RMS)
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Range: 0 to 600.0 A
Accuracy: ±1.8% + 5LSD (50 to 100 Hz)
±2.0% + 5LSD (100 to 400 Hz)
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Range: 0 to 1000 A
Accuracy: ±1.8% + 5LSD (40 to 100 Hz)
±2.2% + 5LSD (100 to 400 Hz)
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DC Current
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–
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Range: 0 to 600.0 A
Accuracy: ±2.0% + 5LSD
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Range: 0 to 1000 A
Accuracy: ±1.8% + 5LSD
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AC+DC Current
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–
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Range: 0 to 600.0 A
Accuracy: ±2.2% + 7LSD (DC, 50 to 100 Hz)
±2.7% + 7LSD (100 to 400 Hz)
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Range: 0 to 1000 A
Accuracy: ±2.2% + 7LSD (DC, 40 to 100 Hz)
±2.5% + 7LSD (100 to 400 Hz)
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Precise Low
Current AC
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Range: 0 to 60.00 A
Accuracy: ±1.5% + 5LSD (50 to 60 Hz)
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Range: 0 to 60.00 A
Accuracy:
±1.5% + 5LSD (0.00 to 20.00 A, 40 to 100 Hz)
±2.0% + 5LSD (0.00 to 20.00 A, 100 to 400 Hz)
±3.0% + 5LSD (20.00 to 60.00 A, 40 to 100 Hz)
±3.0% + 5LSD (20.00 to 60.00 A, 100 to 400 Hz)
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Precise Low
Current DC
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–
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Range: 0 to 60.00 A
Accuracy: ±2.0% + 5LSD
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Range: 0 to 60.00 A
Accuracy: ±1.5% + 5LSD (0.00 to 20.00 A)
±3.0% + 5LSD (20.00 to 60.00 A)
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Precise Low
Current AC+DC
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–
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Range: 0 to 60.00 A
Accuracy: ±2.0% + 5LSD (DC, 50 to 60 Hz)
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Range: 0 to 60.00 A
Accuracy:
±2.0% + 7LSD (0.00 to 20.00 A, DC, 40 to 100 Hz)
±2.2% + 7LSD (0.00 to 20.00 A, 100 to 400 Hz)
±3.0% + 7LSD (20.00 to 60.00 A, DC, 40 to 100 Hz)
±3.0% + 7LSD (20.00 to 60.00 A, 100 to 400 Hz)
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Frequency
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Range: 5.00 to 999.9 Hz
Accuracy: ±1.0% + 5LSD (600 V range)
Range: 50.0 to 400.0 Hz
Accuracy: ±1.0% + 5LSD (600 A range)
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Range: 5.00 to 999.9 Hz
Accuracy: ±1.0% + 5LSD (1000 V range)
Range: 40.0 to 400.0 Hz
Accuracy: ±1.0% + 5LSD (1000 A range)
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Resistance
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Range: 0.0 to 60.00 kΩ
Accuracy: ±1.0% + 5LSD
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Capacitance
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Range: 0.0 to 2500 µF
Accuracy: ±2.0% + 4LSD
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Continuity
Beeper
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ON ≤ 10 Ω
OFF > 250 Ω
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Non-Contact
Voltage
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10V to 1000V AC, 50/60Hz
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True-RMS
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•
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•
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•
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Low Pass Filter
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•
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•
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•
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Autoranging
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•
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•
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•
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Relative Zero
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•
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•
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•
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MAX/MIN/AVG
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•
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•
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•
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Diode Test
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•
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•
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•
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Data Hold
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•
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•
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•
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Backlight
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•
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•
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•
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Auto Power Off
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•
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•
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•
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300 Series:
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DC Microamps
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Range: 0.0 to 2000 µA
Accuracy: ±1.0% + 5LSD
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Temperature*
(Type K
thermocouple)
*Error does not
include Type-K
thermocouple errors
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Range: -40.0 to 752°F, -40.0 to 400°C
Accuracy: -40.0 to 14.0°F (±1.0% +3.0°F), >14.0 to 99.9°F (±1.0% +1.5°F)
100 to 752°F (±1.0% +2°F), -40.0 to -10.0°C (±1.0% +1.5°C)
>-10.0 to 99.9°C (±1.0% +0.8°C), 100 to 400°C (±1.0% + 1°C)
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3-Phase and
Motor Rotation
Indication
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Rotation-R for mains supply
Rotation-M for motors
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Inrush Current
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•
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•
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•
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Peak Hold (Crest)
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–
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–
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•
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Work Light
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–
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–
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•
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Model
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AMP-310
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AMP-320
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AMP-330
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Display
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3-5/6 digits 6000 counts
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3-5/6 digits 6000 counts
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3-5/6 digits 6000 counts
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Polarity
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Automatic
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Automatic
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Automatic
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Update Rate
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5 per second nominal
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5 per second nominal
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5 per second nominal
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Operating
Temperature
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32 to 104°F (0 to 40°C)
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32 to 104°F (0 to 40°C)
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14 to 122°F (-10 to 50°C)
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Relative Humidity
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80% at 30°C, 50% at 40°C
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80% at 30°C, 50% at 40°C
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Non condensing at ≤10°C
90% at 10 to30°C
75% at 30 to 40°C
45% at 40 to 50°C
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Operating Altitude
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0 to 2000 m
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0 to 2000 m
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0 to 2000 m
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Pollution Degree
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2
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2
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2
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Storage
Temperature
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-4 to 140°F (-20°C to 60°C),
< 80% RH
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-4 to 140°F (-20°C to 60°C),
< 80% RH
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-4 to 140°F (-20°C to 60°C),
< 80% RH
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Temperature
Coefficient
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Nominal 0.15 x (specified
accuracy)/ °C @ (0°C to 18°C
or 28°C to 40°C)
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Nominal 0.15 x (specified
accuracy)/ °C @ (0°C to 18°C or
28°C to 40°C)
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Nominal 0.10 x (specified accuracy)/ °C @ (0°C
to 18°C or 28°C to 50°C)
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Battery
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Two AAA 1.5 V battery
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Two AAA 1.5 V battery
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Two AA 1.5 V battery
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EMC
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Meets EN 61326-1:2006
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Meets EN 61326-1:2006
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Meets EN 61326-1:2006
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Safety Compliance
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UL/IEC/EN 61010-1 ed. 3.0,
IEC/EN 61010-2-033 ed. 1.0,
CAN/CSA C22.2 NO. 61010-1
ed. 3.0, IEC/EN 61010-2-032
ed. 3.0 & IEC/EN 61010-031
ed. 1.1
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UL/IEC/EN 61010-1 ed. 3.0, IEC/
EN 61010-2-033 ed. 1.0, CAN/CSA
C22.2 NO. 61010-1 ed. 3.0, IEC/
EN 61010-2-032 ed. 3.0 & IEC/EN
61010-031 ed. 1.1
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UL/IEC/EN 61010-1 ed. 3.0, IEC/EN 61010-2-033
ed. 1.0, CAN/CSA C22.2 NO. 61010-1 ed. 3.0,
IEC/EN 61010-2-032 ed. 3.0 & IEC/EN 61010-
031 ed. 1.1
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Certification
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UL (c/us) and CE
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UL (c/us) and CE
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UL (c/us) and CE
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Dimensions
(L x W x H):
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8.62 x 3.03 x 1.46 in
(219 x 77 x 37 mm)
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8.82 x 3.03 x 1.46 in
(224 x 77 x 37 mm)
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10.16 x 3.70 x 1.73 in
(258 x 94 x 44 mm)
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Weight:
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208 g (0.46 lb)
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254 g (0.56 lb)
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420 g (0.93 lb)
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The Amprobe AMP-310 is a True-RMS with motor testing capabilities that has voltage up to 600 V AC/DC and AC current up to 600 A.
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The Amprobe AMP-320 is a True-RMS with motor testing capabilities that has voltage up to 600 V AC/DC and AC current up to 600 A.
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Product Reviews
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