Micro Precision delivers fast and affordable AEMC 4630 Kit calibration solutions to meet most any requirement. Calibration of AEMC 4630 Kit equipment can be performed at your site or at our lab. accreditations for our AEMC 4630 Kit service guarantees results are traceable to the international systems of units (si) through NIST.

  • ISO/IEC 17025
  • ANSI/NCSL Z450-1
  • ANSI/NCSL Z540.3 through A2LA


In addition to AEMC 4630 Kit calibration services, Micro Precision offers complete AEMC 4630 Kit services for:

  • Multi-brand Repair
  • Maintenance
  • New and Used Test Equipment Sales and Lease Options

Calibration is the key to quality

Gain confidence in your measurements with AEMC 4630 Kit calibration and certificate services that only Micro Precision can provide. Our market-leading technology and expertise will bring you peace of mind and keep you compliant, with:

  • Industry leading metrology expertise
  • Calibration Procedures
  • Easy-to-read certificates
  • Audit-proof documentation



The Digital Ground Resistance Tester Model 4630 performs ground resistance and soil resistivity tests. This direct reading tester measures from 0 to 2000Ω, and is auto-ranging, so it automatically seeks outs the optimum measurement range. The Model 4630 is rugged, easy-to-use and is ideal for maintenance crews performing numerous tests. It exceeds mechanical and safety specifications for shock, vibration and drop tests specified in IEC standards. It is designed to reject high levels of interference, so it can be used under difficult conditions such as high stray currents that normally affect accuracy. The Model 4630 is powered by 9.6V, 3.5 Ah NiMH rechargeable batteries. A built-in recharge circuit, powered from 120/230V 50/60Hz line, also provides for testing while recharging.


Range (Auto-ranging)0 to 2000Ω
Resolution0.01 to 1Ω
Test Current0.1 to 10mA
Accuracy  Typical±(2% Reading +1ct)
Open Voltage42V peak
Withstanding Voltage250VAC or 100VDC
Operating Frequency128Hz square wave
InterferenceRejection to high levels of interference voltage (DC, 50/60Hz, harmonics)
Maximum Auxiliary Rod ResistanceCurrent Circuit:
3kΩ @ 20Ω range
30kΩ @ 200Ω range
50kΩ @ 2000Ω range
Voltage Circuit:
50kΩ on all ranges
Response Time4 to 8 seconds for a stabilized measurement
Display200 counts, 7 segment LCD, backlight
Power Source9.6V NiMH rechargeable battery pack; 120/230V 50/60Hz
Battery Life4500 15-seconds tests, low battery indicator
Dimensions10.8 x 9.7 x 5.0” (273 x 247 x 127mm)
Weight (with Battery)7.38 lbs (3.35kg)
Operating Temperature14° to 131°F (-10° to 55°C)
Storage Temperature-40° to 158°F (-40° to 70°C)
Relative HumidityUp to 90%
Ingress Protection (IP)IP 65 (closed); IP 63 (open)
EMCEN 61326-1
Safety ComplianceEN 61557, EN 61010-1, 30V CAT III, Pollution Degree 2




Contact us today to learn more about AEMC 4630 Kit calibration services at Micro Precision.

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