GW Instek GPI-745A User Manual

Electrical Safety Tester
GPT/GPI-700A Series
USER MANUAL
GW INSTEK PART NO. 82PI-74500MG1
ISO-9001 CERTIFIED MANUFACTURER
This manual contains proprietary information, which is protected
by copyrights. All rights are reserved. No part of this manual may
be photocopied, reproduced or translated to another language
without prior written consent of Good Will company.
The information in this manual was correct at the time of printing.
However, Good Will continues to improve products and reserves
the rights to change specification, equipment, and maintenance
procedures at any time without notice.
Good Will Instrument Co., Ltd.
No. 7-1, Jhongsing Rd., Tucheng City, Taipei County 236, Taiwan.

GW Instek GPI-745A Specifications

General

Model	GPI-745A
Category	Test Equipment
Type	Programmable DC Power Supply
Output Voltage	0 - 75 V
Output Current	0 - 5 A
Power	375 W
Voltage Resolution	10 mV
Current Resolution	1 mA
Protections	OVP, OCP, OTP
Current Accuracy	0.2% + 5 mA
Ripple & Noise (CV)	2 mVrms
Ripple & Noise (CC)	<3mArms
Load Regulation (CV)	0.01% + 5 mV
Line Regulation (CV)	0.01% + 5 mV
Interface	USB, RS232
Display	LCD
Operating Temperature	0 ~ 40°C
Storage Temperature	-20 to 70 °C

Summary

Safety Terms and Symbols

Warning and Caution Statement Definitions

Defines warning and caution statements for user safety and product protection.

Specifications

AC Hi-Pot Specifications

Details voltage, current, and accuracy specifications for AC Hi-Pot testing.

DC Hi-Pot Specifications

Details voltage, current, and accuracy specifications for DC Hi-Pot testing.

Insulation Resistance and Ground Bond Specifications

Covers specifications for Insulation Resistance (IR) and Ground Bond (GB) tests.

Continuity Check and Test Timing Specifications

Outlines specifications for Continuity Check, Ramp/Test Times, and ARC Detect.

Storage, Interface, and Control Specifications

General Specifications and Operating Conditions

Power Source, Environment, and Accessories

Precautions Before Operation

Safety Notice and Working Place

Emphasizes safety, isolation of working place, and warning signs for high voltage.

Line Voltage Check and Operator Safety

Guides on checking line voltage, fuse replacement, and operator safety precautions.

Secure Testing Procedures

Details secure testing practices, earth lead connection, and probe handling.

Operation Method

Display Parameters and Test Modes

Preparing the EST for Use

Editing and Saving Storage Steps

Guides on modifying test parameters and saving the configured steps.

Initiating a Group Test

Steps to set up and start a group test procedure.

Executing and Monitoring Tests

How to start a test, interpret CAUTION LED, and view PASS/FAIL results.

Test Control and Result Viewing

System Utility Configuration

Editing System Utility Settings

Menu Parameter Setup

AC/DC Withstanding Voltage Setup

Guides on setting up parameters for AC/DC Withstanding Voltage tests.

AC/DC Test Parameter Adjustment

Details how to adjust output voltage, current limits, and ramp/test times for AC/DC tests.

Continuous Voltage and Insulation Resistance Tests

Covers setup for Continuous AC/DC (CAC/CDC) and Insulation Resistance (IR) tests.

Insulation Resistance Parameter Adjustment

Ground Bonding Test Setup

Ground Bonding Parameter Adjustment

Continuity Check Setup

Continuity Check Parameter Adjustment

Remote Interface Functionality

Maintenance

Fuse Rating and Type Replacement