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R1M-B Handheld Megohmmeter

Brand: Tegam

The Model R1M-B Handheld Voltmeter/ Megohmmeter is designed to measure insulation resistance in “live” circuits, which may have voltage present. 

It can be connected to 600 V RMS AC or DC without damage, and its mode of operation is automatic. It has no fuse to replace. 

The R1M-B will operate after a drop from a height of four feet to a concrete floor. 

The R1M-B complies with MIL-PRF-28800, Type III, Class 3, Style E for rugged operational environments and shipboard applications. 

These units perform under the extremes of heat, cold, humidity, shock, vibration, and operator abuse.
Features
  • 1 to 200 MΩ 
  • 500 V Test Voltage 
  • Simple One Range Operation 
  • Measures AC Voltage to 600 V 
  • LED on when Voltage is Present 
  • Rugged to MIL Specifications 
  • Single Push Button for Test 
  • 9 V Battery Operation

Specifications

Brand

Accuracy

  • 3 % of Reading ± 1 Count - Resistance
  • 5 % of Reading ± 1 Count - Voltage Readings

Calibration

  • 1-Year - Suggested Calibraton Interval

Circuit Protection

  • MILT-T-28800, Typical III, Class 3, Style E for Rugged Operational Environments

Display

  • 3-1/2-Digit Liquid Crystal Display with 0.5” Digits
  • LCD Display

Humidity

  • 0 to 100 % Relative Humidity, Non-Condensing - Storage Temperature
  • 75 % Relative Humidity, Non-Condensing - Operating Temperature

Indication

  • LED - Front Panel: Indicate Low Battery

Measuring Range

  • 1 to 200 megaohms
  • 3 to 600 Vac

Operating Temperature

  • 0° to 50° C (32° to 122° F)

Operating Voltages

  • 3-600 Vac RMS

Power Requirement

  • 9 V Alkaline Battery

Storage Temperature

  • -40° to 71° C (-40° to 160° F)

Supply Voltage

  • 500 Vdc at 10 % - Test Voltage for Resistance

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