Spesifikasi Ground Resistance Tester (Digital 3-Point) AEMC 6422
AEMC 6422 - Ground Resistance Tester (Digital, 3-Point)
Catalog 2135.55
Ground Resistance Tester Model 6422 (Digital, 3-Point)
Simple, one-button operation - eliminates errors in testing
The test button turns green when a measurement is stable
2P resistance/ 3P ground resistance measurement up to 50kΩ for highly resistive terrain
Large backlit digital display - easier to read in all lighting conditions
Automatic hold function - retains the last measurement after the reading stabilizes ensuring the measurement is valid
Automatic test frequency selection between 128 and 256 Hz, providing stable results in adverse environments
Powers up in 2 pole mode - automatically check the injector lead connection when connected to the H auxiliary rod
Convenient storage of the three measurements along with the average and % deviation - easily determines proper test results
Built-in test lead compensation capability - improves the accuracy of low resistance measurements
The Digital Ground Resistance Tester Model 6422 performs 2-pole and 3-pole ground resistance measurements. This direct reading tester is auto-ranging, so it automatically seeks out the optimum measurement range. The Model 6422 is easy to use - simply connect the leads, press to measure, and read. The large LCD also indicates low battery status, overrange, and lead reversals.
The Model 6424 comes with 3 safety color-coded terminals to aid in an easy hookup, measure voltage up to 700V AC/DC, and AC current up to 70A with the optional current probe Model MN72.
The Model 6424 is powered by 6 x AA rechargeable NIMH batteries. The Ground Resistance Tester Model 6424 is also available in complete Kits (150ft and 300ft).
Ground Resistance (2P Mode)
Measurement Range 0.05-99.99Ω 80.0-999.9Ω 0.800-9.999kΩ 8.00-50.00kΩ
Resolution 0.01Ω 0.1Ω 1Ω 0Ω
Intrinsic Uncertainty ± (2%R + 10 ct) ± (2%R + 2 ct) ±(2%R + 1 ct) ±(2%R + 1 ct)
Ground Resistance (3P Mode)
Measurement Range 0.50-99.99Ω 80.00-999.99Ω 0.800-2.000kΩ –
Resolution 0.01Ω 0.1Ω 1Ω –
Intrinsic Uncertainty ± (1%R + 10ct) ± (1%R + 2ct) ± (1%R + 1ct) –
Measurement Frequency 128Hz or 256Hz (automatically selected)
No-load Voltage ±10 V peak
Maximum Test Current 20mA
Measurement Mode One shot or continuous
GENERAL
Display Backlit LCD
Measurement Mode 2P (Ω), 3P (Ω)
Power Supply (6) AA Alkaline batteries
Battery Life > 2,000 x 3P earth measurements at 100 Ω
Dimensions 8.78 x 4.96 x 2.75" (223 x 126 x 70mm)
SAFETY
Safety Ratings EMC: IEC 61326-1; IEC 61010-2-030 / 600 V CAT IV
Earth Tester