• Part Number: 2155.51
• Easy to use with compact, lightweight design
• Test voltage selections of 250V, 500V, and 1000V
• Insulation resistance measurements up to 40GΩ
• Timed Test Mode up to 40 minutes for Insulation Resistance Test
• Test Lock feature for hands-free operation with timed measurements up to 15 minutes
• Performs continuity tests with 200mA test current
• Test lead resistance compensation for accurate low resistance measurements
• True RMS AC/DC voltmeter up to 700V
• Auto discharge after insulation test
• Hold function to "freeze" readings
• Large and bright dual display with blue backlight
• Auto Standby mode reduces power consumption
• Complies with IEC/EN 61010-1, 600V CAT IV, IEC 61557
• Applications:
• Insulation measurement on communication cables, Ethernet cables and other low voltage AC and DC wiring
  
• Insulation measurement on electronic components and circuits
  
• Special applications in the aerospace and defense sectors where specified test voltages are required
  
• Cables, small motors, pumps, transformers and industrial equipment
  

• AC/DC Voltage Measurement:
• Range: 0.3 to 700V
• Accuracy: ±(3% R + 2ct)
• Resolution:
• 0.3 to 399.9V: 0.1V
  
• 400 to 700V: 1V
  
• Frequency Range: DC & 15.3 to 800Hz
• Input Impedance:  400kΩ
• Insulation Measurement:
• Test Voltage / Resistance Range:
• 250V: 50kΩ to 10GΩ
  
• 500V: 100kΩ to 20GΩ
  
• 1000V: 200kΩ to 40GΩ
  
• Measurement Accuracy:
• 250V: ±(3% R + 2ct)+0.4%/GΩ
  
• 500V: ±(3% R + 2ct)+0.2%/GΩ
  
• 1000V: ±(3% R + 2ct)+0.1%/GΩ
  
• Auto Discharge: Discharge time < 2s/µF From Vtest to 25V
• Live Circuit Indicator: Inhibit test if terminal voltage > 25V prior to initialization of test
• Continuity Measurement:
• Ranges: 0.00 to 10Ω (200mA test current)
• Accuracy: ± (2% R + 2ct) with lead compensation
• Open Voltage: ≥ 6V
• General Features:
• Time: 0:00 to 39:59mn, with 1s resolution
• Display: Backlit digital with bargraph
• Power Supply: Six AA batteries (NEDA 15A or IEC LR6)
• Battery Life: ≥1500 IR tests at 1000 V into 1MΩ with a duty cycle of 5 seconds on and 1 min off. ≥3000 R tests of 1Ω with a duty cycle of 5 seconds on and 1min off.
• Dimensions: 8.31 x 4.25 x 2.36” (211 x 108 x 60mm)
• Weight: 1.87 lbs (850g)
• Altitude Operating: 2000m
• Operating Temperature: -4° to +131°F (-20° to +55°C) & 20 to 80% RH
• Storage Temperature: -22° to +176°F (-30° to +80°C) & 10 to 90% RH, without batteries
• IP Rating: IP 54
• Safety Compliance: IEC/EN 61010-1, 600V CAT IV, IEC 61557

• (1) Digital/Analog Handheld Megohmmeter (Model 6522)
• (1) Soft Carrying Pouch
• (2) 1.5m Test Leads (Red/Black)
• (2) Alligator Clips (Red/Black)
• (1) Black Test Probe
• (6) AA Batteries
• (1) User Manaul

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