Fluke 1625-2 User Manual

January 2014
© 2014 Fluke Corporation. All rights reserved. Specifications are subject to change without notice.
All product names are trademarks of their respective companies.
1625-2
Earth/Ground Tester
Users Manual

Fluke 1625-2 Specifications

General

Control type	Buttons, Rotary
Certification	EN60529, CE
Housing color	Black, Yellow
Display digits	2999 digits
Measuring time	8 s
Maximum voltage	50 V
Built-in display	Yes
Number of memory records	1500
Storage temperature (T-T)	-30 - 60 °C
Operating temperature (T-T)	-10 - 50 °C
Voltage measurement accuracy	5 %
Voltage measurement resolution	0.1 V
International Protection (IP) code	IP56
Battery size	AA
Battery voltage	1.5 V
Battery technology	Alkaline
Battery life (measurements)	6000
Number of batteries supported	6

Weight and Dimensions

Depth	187 mm
Width	250 mm
Height	133 mm
Weight	1100 g

Summary

Introduction

How to Contact Fluke

Safety Information

Storage

Models and Accessories

Additional Accessories

Features

Display

Setup

Batteries

Instructions for inserting and replacing the tester's batteries, including safety precautions.

Description of Functions

Operation

Advanced Operation

Overview of advanced operating modes, power-on functions, and button combinations for instrument control.

Control Loop

Measurement Loop

Correct Measurement Connection (Socket Allocation) Check

How the instrument automatically checks for correct input socket usage during measurements.

Interference - Voltages and Frequencies Measurement

How the tester detects and measures interference voltages and their frequencies before measurements.

Earthing Resistances Measurement

3-Pole/4-Pole Measurement of Earthing Resistance

Remarks for the setting of earth spikes

3-pole measurement with longer earth electrode connecting leads

Using longer leads for 3-pole measurements and compensating for line resistance.

Time average measurement

Method for obtaining stable readings when experiencing unsteady noise voltage during measurements.

Measurement of Single Earth Electrode Resistances in Mesh Operated Earthing Systems Using Selective Clamp Method

3-Pole/4-Pole Measurement of Single Earth Electrode Resistances

Measurements on High Voltage Pylons

Measuring the Earthing Resistance without Disengaging the Overhead Earth Wire Using the Selective Clamp Method

Measuring pylon earthing resistance without lifting overhead earth wires using a selective clamp method.

Measuring Earthing Impedance with 55 Hz (R*)

Clip-On Transformer Errors Correction

Compensation of Earth Electrode Connecting Lead

Measurement of Soil Resistivity

Measurement of Resistances

Resistance Measurement (R~)

Measuring ohmic resistance between 0.02 Ω and 300 kΩ using AC voltage.

Resistance Measurement (R-==)

Compensation of Measuring Lead Resistance

How to Change All Data Settings with Personalized CODE

Export Stored Data to PC

Delete Stored Data

Maintenance

Calibration

Recommended calibration intervals for ensuring instrument accuracy and reliability.

Service

Procedures and contacts for troubleshooting and repairing the instrument if it fails.

Specifications

Interference Frequency (FST) Measurement

Earthing Resistance (RE)

Technical specifications for earthing resistance measurements, including voltage, current, and frequency.

Selective Measurement of the Earthing Resistance (REC)

Resistance Measurement (R-)

Compensation of Lead Resistance (RK)

Stakeless Ground Loop Measurement

Specifications for stakeless ground loop resistance measurements using two current clamps.