Hioki 3151 Earth HiTester performs 3-electrode and 2-electrode ground resistance testing in tough use in field environments. Recommended uses include ground resistance testing of electrical grounding, mesh grounding, electrical power equipment grounding, and when the measurement point location is at a distance from the insertion point of the grounding electrode. Measurement frequency is switchable from normal ( 3 point) to simple ( 2 point) to minimize the influence of harmonic earth voltage. The tester can take measurement readings up to 115% of the actual range. For safety, overvoltage and incorrect connections sound an alarm buzzer. Quick reference instructions are included in the inside cover of the meter to assist with meter use and equipment setup for 3-point and 2-point testing. Ground-resistance meters are used by electricians and contractors working in industrial, utility, and field servicing.

The Hioki 3151 tester comes with a 1m black measurement cable, 10m yellow cable, 20m red cable, auxiliary rods, three cable winders, and carrying case. The tester is CE marked, with safety ratings of EN61010, CAT II, and pollution degree 2.

Product Features
Performs 3-electrode and 2-electrode ground resistance testing for tough use in field environments
Recommended for testing electrical and mesh grounding, electrical power equipment grounding, and when measurement point is distant from insertion point of grounding electrode
Button switches measurement frequency from normal to simple to minimize influence of harmonic earth voltage
Overvoltage protection sounds an alarm buzzer to prevent damage from incorrect connections
Measurement knobs are rated to IP 40 for resistance to dust

Spesifikasi - Hioki 3151 Earth HiTester: 

Ground resistance range, 3-point 10? / 100? / 1000? 
Ground resistance range, 2-point 100? / 1000? 
Nominal deviation + or – 2.5% full scale
Grounding voltage 30V
Operating method AC potentiometer method
Measurement frequency 575Hz ( with 3a or 2a selected) or 600Hz ( with 3b or 2b selected) 
Measurement current AC 15mA max ( AC 3mA for 2-point testing) 
Operating temperature range 0 to 40 degrees C
Operating humidity 80% rh maximum ( no condensation) 
Power source ( 6) 1.5V AA batteries ( included) 
Weight 800g
Dimensions 164 x 119 x 88mm ( H x W x D) 
H is height, the vertical distance from lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.

Ground-resistance meters test the condition of a grounding system, and provide resistivity measurements in ohms. The meters are available in digital, analog, and clamp models. Grounding systems protect people and equipment, and provide a safe path for the dissipation of fault currents, lightning strikes, static discharges, EMI and RFI signals, and interference. Regular testing of a grounding system is important for safety and protection of equipment. For example, corrosive soil with high moisture content can degrade ground rods and connections in existing systems and increase the resistance of the system. Ground-resistance meters are used in conjunction with a variety of testing methods to troubleshoot intermittent electrical problems or as part of a regular maintenance plan.

Paket Penjualan: 

Hioki 3151 Earth HiTester ground resistance meter
( 2) 9214 Auxiliary earthing rods
Black measuring cable, 1m/ 3.28ft.
Yellow measuring cable, 10m/ 32.81ft.
Red measuring cable, 20m/ 65.62ft.
( 2) 9214 Auxiliary earthing rods
( 3) Cable winders
( 4) 1.5V AA manganese batteries
9393 Carrying case