Digital Earth Clamp Tester With Leakage Current Measurement By Visma Instruments & Technologies Pvt. Ltd.

Features:RS 232 Interface for monitoring, uploading, analyzing & printing of dataMemory Storage capability of 99 recordsExtended resistance range up to 1200OhmAC Leakage current measurement up to 20AAlarm setting feature with selection range available for resistance and currentImproved Jaw Opening & ClosingFast self test & Calibration Soft touch keysRugged casing and easy to use General Specifications: Display 4 digit LCD, 47 mm X 28.5 mm Resistance Measurement Range 0.01Ohm to 1200Ohm Current Measurement Range 0 to 20A Memory Storage Facility 99 records Computer Interfacing RS 232 for uploading the stored data and analyzing at later time Single Measurement Time 0.5 Second Resistance Measurement Frequency >1 KHz Current  Measurement Frequency 50/60Hz Sound & Light annunciator Beep sound, Flashing symbol, AL key to turn on-off & setting the sound & light alarm Selection range of resistance for setting alarm value 1Ohm -199Ohm Selection range of current for setting alarm value 1mA-499mA Protection Level Double Insulation External Magnetic Field <40A/m External Electric Field <1V/m Power Source 6VDC (41.5 V AA alkaline battery) Auto Power Off Approx 5 minutes Environmental Working Temperature:0C to 50C Relative Humidity :10% to 90% Jaw Size 65mm X 32mm Dimension (L B H) 285mm 85mm 56mm Net Weight (Including Batteries) 1160 gms   Technical Specifications: Mode Range Resolution Accuracy                 Resistance         0.010-0.099Ohm 0.001Ohm (1% + 0.01Ohm) 0.10-0.99Ohm 0.01Ohm (1% + 0.01Ohm) 1.0-49.9Ohm 0.1Ohm (1% + 0.1Ohm) 50.0-99.5Ohm 0.5Ohm (2% + 0.5Ohm) 100-199Ohm 1Ohm (3% + 1Ohm) 200-395Ohm 5Ohm (6% + 5Ohm) 400-590Ohm 10Ohm (10% + 10Ohm) 600-880Ohm 20Ohm (20% + 20Ohm) 900-1200Ohm 30Ohm (25% + 30Ohm)                Current            0-9 mA 0.1 mA (2.5% + 1mA ) 10-99 mA 1 mA (2.5% + 5mA ) 100-299 mA 1 mA (2.5% + 10mA) 0.30-2.99 A 10 mA (2.5% + 0.1A) 3.0-9.9 A 0.1 A (2.5% + 0.3A) 10.0-20.0 A 0.1 A (2.5% + 0.5A) Applications:Measures Earth Resistance of the electrical ground rod and grid.Measures AC leakage current of transformer neutral.Used to test the quality of the grounding without disconnecting the ground rod under test.Conduct field surveys fast and effectively and retrieves and analyzes the readings for later reference.Used to test the telecommunication Towers grounding.Used in finding the earth fault such as discontinuation or loose contact of earthing strips or cables.To find the resistance of earth pit. Standard Accessories:Carrying CaseStandard Loop Resistance of 5.1OhmInstruction ManualRS 232 CablePC Software CDCalibration Certificate