I. Introduction

XZTY series of Clamp Earth Resistance Tester is a major breakthrough in traditional grounding resistance measurement. It is widely used in the grounding resistance measurement of the power, telecommunications, meteorology, oilfield, construction and the industrial and electrical equipment.

XZTY series of Clamp Grounding Resistance Tester, in the measurement of a grounding system with loop, does not require breaking down the grounding down lead, and no need the auxiliary grounding electrode. It is safe, fast and simple in use.

XZTY series clamp grounding resistance meter can measure ground faults which cannot be measured by traditional methods. It can be used in applications where traditional methods cannot be measured, because the XZTY series clamp grounding resistance meter measures the combined value of grounding body resistance and grounding lead resistance.

In addition, the C type Clamp Grounding Resistance Tester is also able to measure the leakage current and the neutral current in the grounding system.

II. Specification

2.1. Series Model 

2.2. Ranges & Accuracy 

2.3. Technical Specifications

Power Source: 6VDC (4pcs 5# alkaline battery)

Working Temperature: -10 ° -55 ° C

Relative Humidity: 10%-90%

LCD: 4-digital LCD, 47mm (L) × 28.5mm (W)  

Meter Size: 275mm (L); 85mm (W); 56mm (H)

Meter Weight (including batteries): 995 g

Protection Level: Double insulation

Structural Feature: Clamp and jaw type

Range Shift: Automatic

External Magnetic Field: ＜40A/m

External Electric Field: ＜1V/m

Single Measuring Time: 0.5 second

Measurement Resistance Frequency: ＞1KHz

Maximum Resistance Measurement Resolution: 0.001 Ω

Resistance Measurement Range: 0.01-1000 Ω

Current Measuring Range: 0-30A(C type)*

Measured Current Frequency: 50/60Hz

Storable Measurement Data: 99 groups 

Setting Range of Resistance Alarm Critical Value: 1-199 Ω

Setting Range of Current Alarm Critical Value：1-499mA(C type)*

Note: with "*" item is limited to C type