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The Amprobe 33XR-A is a manual ranging digital multimeter with temperature and capacitance for field service technicians. Specifications. DC Voltage ranges: 400 mV, 4 V, 40 V, 400 V, 1000 V. DC Voltage accuracy: ± (0.7 % rdg + 1 dgt). DC Voltage resolution: 100 µV. AC Voltage (45 Hz to 500 Hz) ranges: 400 mV, 4 V, 40 V, 400 V, 750 V. AC Voltage (45 Hz to 500 Hz) accuracy: 4 V Range 200 Hz to 500 Hz ± (1.5 % rdg + 4 dgts), All other ranges ± (1.5 % rdg + 4 dgts). AC Voltage (45 Hz to 500 Hz) resolution: 100 µV. DC Current ranges: 400 µA, 4 mA, 40 mA, 300 mA, 10 A. DC Current accuracy: 400 µA to 300 mA ranges ± (1.0 % rdg + 1 dgt), 10 A range: ± (2.0 % rdg + 3 dgts). DC Current resolution: 0.1 µA. AC Current (45 Hz to 500 Hz) ranges: 400 µA, 4 mA, 40 mA, 300 mA, 10 A. AC Current (45 Hz to 500 Hz) accuracy: 400 µA to 300 mA ranges ± (1.5 % rdg + 4 dgts), 10A range: ± (2.5 % rdg + 4 dgts). AC Current resolution: 0.1 µA. Resistance Ranges: 400 ohm, 40 kohm, 4 Mohm. Resistance Accuracy: 400 ohm to 40 kohm ranges ± (1.0 % rdg + 4 dgts), 4 Mohm range ± (1.2 % rdg + 4 dgts). Resistance Resolution: 100 mohm. Capacitance Ranges: 4 µF, 40 µF, 400 µF, 4000 µF. Capacitance Accuracy: 4 µF range ± (5.0 % rdg + 10 dgts), 40 µF, 400 µF ranges ± (5.0 % rdg + 5 dgts), 4000 µF range ± (5.0 % rdg + 15 dgts). Capacitance Resolution: 0.1 µF. Temperature Ranges: -20 °C to 1000 °C, -4 °F to 1832 °F. Frequency (autoranging) Ranges: 4 kHz, 40 kHz, 400 kHz, 4 MHz, 40 MHz. Frequency Accuracy: ± (0.1 % rdg + 3 dgts). Frequency Resolution: 1 Hz. Continuity Audible Indication: < 35 ohm. Diode Test Current: 1.0 mA (approximate). Diode Test accuracy: ± (1.5 % rdg + 3 dgts). Peak Hold AC Volts Accuracy 40 V to 750 V: ± (3.0 % rdg + 60 dgts). Peak Hold AC Current Accuracy: ± (3.0 % rdg + 60 dgts). Overload Protection AC/DC Voltage 400 mV range: 1000 V DC or 750 V AC RMS 15 sec. Display: 3-3/4 digit LCD, 3999 counts with 41-segment analog bar graph. Display Update Rate: 2/sec, nominal.
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