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Beha-Amprobe 33XR-A Digital Multimeter

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Designed for use by field service technicians, Beha-Amprobe's 33XR-A is a manual ranging digital multimeter with a wide variety of electrical testing procedures.

This digital multimeter can be used to test DC voltage, AC voltage, frequency, temperature, AC/DC current, continuity and diode across several measurement ranges and with high levels of accuracy.

If you accidentally manage to connect up the included test leads wrongly into the 33XR-A, this digital multimeter will sound an input warning tone to let you know about it.  This digital multimeter also includes a MIN/MAX mode, allowing users to calculate the minimum/maximum values for a selected range over a period of time.

As a manual ranging multimeter, the 33XR-A gives users full control over measurement ranges using the built-in rotary dial. Measurements are shown on the 3999 count LCD screen as a digital readout plus as an analogue reading on the built-in 41-segment analogue bar graph display.

As standard Beha-Amprobe's 33XR-A digital multimeter ships with a magnetic mounting kit, allowing you to place the meter on a metallic surface for easy, hands-free use.

Beha-Amprobe 33XR-A Digital Multimeter Key Features

  • DC Voltage to 1000V
  • AC Voltage to 750V
  • Frequency to 40MHz
  • Temperature to 1000°C
  • AC/DC current to 10A with full safety fuse
  • Continuity with integrated beeper
  • Diode with 1.0mA test current
  • Input warning tone sounds alert when test leads are inserted into the wrong jack
  • MIN/MAX mode calculates the minimum and maximum values taken over a period of time
  • Relative, peak and data hold functions
  • Automatic power off helps save battery life
  • Separate door for easy access to batteries and fuses
  • Mount hands-free on a surface with the included magnetic strap

What's Included?

  • Beha-Amprobe 33XR-A Digital Multimeter
  • Magne-Grip Holder with Magnetic Hanging Strap
  • User Manual
  • Type-K Thermocouple
  • Batteries (Installed)
  • Test Leads
Part Code2727788

Beha-Amprobe 33XR-A Technical Specifications

Display 3 and 3/4 digit LCD, 3999 counts with 41 segment analogue bar graph
Display Update Rate 2/sec, nominal
Power Battery 9V NEDA 1604, JIS 006P, IEC 6F22
Battery Life 300 hours typical (alkaline)
Operating Temperature 0 to 45°C at <70% RH
Storage Temperature -20 to 60°C, 0 to 80% RH. with battery removed from meter
Dimensions 196 x 92 x 60mm (7.7 x 3.5 x 2.3")
Weight 400g (0.9lbs) without holster, including battery
DC Voltage 
Ranges 400mV, 4V, 40V, 400V, 1000V
Accuracy ±(0.7% rdg + 1 digit)
Input Impedance 10MΩ
AC Voltage (45Hz to 500Hz) 
Ranges 400mV, 4V, 40V, 400V, 750V
Accuracy 4V range: 200Hz to 500Hz: ±(2.0% + 4 digits)
All other ranges: ±(1.5% + 4 digits)
DC Current 
Ranges 400μA, 4mA, 40mA, 300mA, 10A
Accuracy 400μA to 300mA ranges: ±(1.0% rdg + 1 digit)
10A range: ±(2.0% rdg + 3 digits)
Resolution 0.1μA
Voltage Burden 400μA range: 1mV/μA
4mA range: 100mV/1mA
40mA range: 12mV/1mA
300mA range: 4mV/1mA
10A range: 100mV/1A
AC Current (45 to 500Hz) 
Ranges 400μA, 4mA, 40mA, 300mA, 10A
Accuracy 400μA to 300mA ranges: ±(1.5% rdg + 4 digits)
10A range: ±(2.5% rdg + 4 digits)
Resolution 0.1μA
Voltage Burden See DC current
Ranges 400Ω, 40kΩ, 4MΩ
Accuracy 400Ω and 40kΩ ranges: ±(1.0% rdg + 4 digits)
4M range: ±(1.2% rdg + 4 digits)
Resolution 100mΩ
Open Circuit Voltage 400Ω range: 3.0V DC
All other ranges: 0.5V DC typical
Ranges 4μF, 40μF, 400μF, 4000μF
Accuracy 4μF range: ±(5.0% rdg + 10 digits)
40μF, 400μF ranges: ±(5.0% rdg + 5 digits)
Resolution 0.1μF
Test Voltage <3.0V
Test Frequency 10Hz
Input Protection μA/mA Input 0.315A/1000V fast blow ceramic fuse 6.3 x 32mm
Ranges -20 to 1000°C, -4 to 1832°F
Accuracy -20 to 10°C: ±(2.0% rdg + 4°C)
10 to 200°C: ±(1.0% rdg + 3°C)
200 to 1000°C: ±(3.0% rdg + 2°C)
-4 to 50°F: ±(2.0% + 8°F)
50°F to 400°F: ±(1.0% rdg + 6°F)
400 to 1832°F: ±(3.0% rdg + 4°F)
Resolution 1°C, 1°F
Frequency (Autoranging)
Ranges 4kHz, 40kHz, 400kHz, 4MHz, 40MHz
Accuracy ±(0.1% rdg + 3 digits)
Resolution 1Hz
Sensitivity 10Hz to 4MHz: >1.5V AC RMS
4MHz to 40MHz: >2V AC RMS, <5V AC RMS
Minimum Pulse Width >25ns
Duty Cycle Limits >30% and <70%
Audible Indication <35Ω
Response Time 100ms
Diode Test
Test Current 1.0mA (approx)
Accuracy ±(1.5 % rdg + 3 digits)
Open Circuit Voltage 3.0V DC typical
Peak Hold
AC Voltage Accuracy 40V to 750V: ±(3.0% rdg + 60 digits)
AC Current Accuracy ±(3.0% rdg + 60 digits)
Response Time >1ms
Overload Protection
AC/DC Voltage 400mV range: 1000V DC or 750V AC RMS 15 sec
All other ranges: 1000V DC or 750V AC RMS
AC/DC Current μA/mA input: 0.315A / 1000V fast-blow ceramic (6.3 x 32mm)
10A input: 10A/1000V fast-blow ceramic (10 x 38mm)
(10A for 4 minutes maximum followed by a 12 minute cooling period)
Resistance 1000V DC or 750V AC RMS
Continuity 1000V DC or 750V AC RMS
Diode Test 1000V DC or 750V AC RMS
Capacitance 0.315A / 1000V fast-blow ceramic (6.3 x 32mm)
Temperature 1000V DC or 750V AC RMS
Frequency 1000V DC or 750V AC RMS
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