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R1M-A Portable Megohmmeter

Brand: Tegam

The Model R1M-A series portable megohmmeter is designed to measure very high values of insulation resistance.

The instrument has six resistance ranges from 1 MegaOhms full scale to 100 GigaOhms full scale, with 100% over range capability. 

Four test voltages of 50, 100, 250 and 500 Vdc are provided (50 V maximum to be used with resistances less than 1 MegaOhms). 

Resistance readings are displayed on a 3-1/2 digit LCD display with 0.5 inch character height.
Features
  • Measure to 200 GΩ in 6 Selectable Ranges 
  • Measurement Accuracy ± 5 % 
  • 50, 100, 250, 500 VDC Test Voltages 
  • 3½ Digit Display 
  • Rugged Weather Tight Case 
  • Versatile Test Probes 
  • Front panel LED to indicate the presence of voltage

1 - 2 of 2 Part Numbers
R1M-A
R1M-A
  • Version - NSN 6625-01-344-9273 (US Navy Version)
R1M-AR
R1M-AR
  • Version - NSN 6625-01-494-2682 (US Army Version)
1 - 2 of 2 Part Numbers

Specifications

Brand

Accuracy

  • ± 3 % of Specified Value - Test Voltages
  • ± 5 % of Reading - Resistance Value

Current

  • < 6 mA - Short Circuit Current

Display

  • 3-1/2-Digit LCD Display

Humidity

  • 75 % ± 5 % Relative Humidity, Non-Condensing - Operating Temperature
  • 95 % ± 5 % Relative Humidity, Non-Condensing - Storage Temperature

Indication

  • LED - Presence of Voltage at the Terminals

Maximum Voltage

  • 50 V, Max.

Operating Temperature

  • 0° to 50° C (32° to 122° F)

Power Requirement

  • 103.5-129 Vac, 50/60 Hz

Resistance

  • 1 megaohms to 100 GigaOhms

Storage Temperature

  • -40° to 71° C (-40° to 160° F)

Supply Voltage

  • 50-500 Vdc - Test Voltages

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