
GPT-9000 / GPT-9000A Series
GW INSTEK PART NO. 82PT-90000MB1
ISO-9001 CERTIFIED MANUFACTURER

This manual contains proprietary information, which is protected by
copyright. 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
right to change specification, equipment, and maintenance
procedures at any time without notice.
Good Will Instrument Co., Ltd.
No. 7-1, Jhongsing Rd., Tucheng Dist., New Taipei City 236, Taiwan.

Table of Contents
Table of Contents
SAFETY INSTRUCTIONS ................................................... 4
Safety Symbols ............................................................................................... 4
Safety Guidelines ............................................................................................ 5
Power cord for the United Kingdom ............................................................. 7
INTRODUCTION ............................................................... 8
Series lineup ................................................................................................... 8
Model Overview ............................................................................................. 9
Panel Overview ............................................................................................. 10
GPT-9801/9802/9803/9901A/9902A/9903/9903A Front Panel ............... 10
GPT-9804/9904 Front Panel ........................................................................ 10
GPT-9801/9802/9803/9804 Rear Panels .................................................... 11
GPT-9901A/9902A/9903/9903A Rear Panel ............................................... 11
GPT-9904 Rear Panel ................................................................................... 12
OPERATION .................................................................... 13
Menu Tree ..................................................................................................... 13
VIEW Status .................................................................................................. 14
AUTO/MANU Mode .................................................................................... 15
EDIT Status ................................................................................................... 16
READY Status ............................................................................................... 19
TEST Status .................................................................................................. 21
Results........................................................................................................... 21
STOP Status ................................................................................................. 23
Page View ...................................................................................................... 24
Common Utility Settings ............................................................................. 26
MANU Utility Settings ................................................................................. 28
3

GPT-9000/9000A Series Quick Start Guide
Warning: Identifies conditions or practices that
could result in injury or loss of life.
Caution: Identifies conditions or practices that
could result in damage to the instrument or to
other properties.
Attention Refer to the Manual
Protective Conductor Terminal
Frame or Chassis Terminal
Earth (ground) Terminal
SAFETY INSTRUCTIONS
This chapter contains important safety
instructions that you must follow during
operation and storage. Read the following before
any operation to ensure your safety and to keep
the instrument in the best possible condition.
Safety Symbols
These safety symbols may appear in this manual or on the
instrument.
4

SAFETY INSTRUCTIONS
Do not dispose electronic equipment as unsorted
municipal waste. Please use a separate collection
facility or contact the supplier from which this
instrument was purchased.
General
Guideline
CAUTION
Do not place any heavy object on the
instrument.
Avoid severe impact or rough handling that
leads to damaging the instrument.
Do not discharge static electricity to the
instrument.
Use only mating connectors, not bare wires, for
the terminals.
Do not block the cooling fan opening.
Do not disassemble the instrument unless you
are qualified.
(Measurement categories) EN 61010-1:2010 specifies the
measurement categories and their requirements as follows. The
GPT-9000/9000A does not fall under category II, III or IV.
Measurement category IV is for measurement performed at the
source of low-voltage installation.
Measurement category III is for measurement performed in the
building installation.
Measurement category II is for measurement performed on the
circuits directly connected to the low voltage installation.
AC Input voltage range:
100/120/220/230VAC ±10%
Frequency: 50Hz/60Hz
To avoid electrical shock connect the protective
grounding conductor of the AC power cord to
an earth ground.
Safety Guidelines
5

GPT-9000/9000A Series Quick Start Guide
Cleaning the
GPT-9000/9000A
Disconnect the power cord before cleaning.
Use a soft cloth dampened in a solution of mild
detergent and water. Do not spray any liquid.
Do not use chemicals containing harsh material
such as benzene, toluene, xylene, and acetone.
Location: Indoor, no direct sunlight, dust free,
almost non-conductive pollution (Note below)
Relative Humidity: ≤ 70% (no condensation)
Altitude: < 2000m
Temperature: 0˚C~40˚C
(Pollution Degree) EN 61010-1:2010 specifies the pollution degrees
and their requirements as follows. The GPT-9000/9000A falls under
degree 2.
Pollution refers to “addition of foreign matter, solid, liquid, or
gaseous (ionized gases), that may produce a reduction of dielectric
strength or surface resistivity”.
Pollution degree 1: No pollution or only dry, non-conductive
pollution occurs. The pollution has no influence.
Pollution degree 2: Normally only non-conductive pollution
occurs. Occasionally, however, a temporary conductivity caused
by condensation must be expected.
Pollution degree 3: Conductive pollution occurs, or dry, non-
conductive pollution occurs which becomes conductive due to
condensation which is expected. In such conditions, equipment
is normally protected against exposure to direct sunlight,
precipitation, and full wind pressure, but neither temperature
nor humidity is controlled.
Location: Indoor
Temperature: -10°C to 70°C
Relative Humidity: ≤ 85% (no condensation)
Do not dispose this instrument as unsorted
municipal waste. Please use a separate collection
facility or contact the supplier from which this
instrument was purchased. Please make sure
discarded electrical waste is properly recycled to
reduce environmental impact.
6

SAFETY INSTRUCTIONS
Power cord for the United Kingdom
When using the safety tester in the United Kingdom, make sure the
power cord meets the following safety instructions.
NOTE: This lead/appliance must only be wired by competent persons
WARNING: THIS APPLIANCE MUST BE EARTHED
IMPORTANT: The wires in this lead are coloured in accordance with the
following code:
As the colours of the wires in main leads may not correspond with
the coloured marking identified in your plug/appliance, proceed
as follows:
The wire which is coloured Green & Yellow must be connected to
the Earth terminal marked with either the letter E, the earth symbol
or coloured Green/Green & Yellow.
The wire which is coloured Blue must be connected to the terminal
which is marked with the letter N or coloured Blue or Black.
The wire which is coloured Brown must be connected to the
terminal marked with the letter L or P or coloured Brown or Red.
If in doubt, consult the instructions provided with the equipment
or contact the supplier.
This cable/appliance should be protected by a suitably rated and
approved HBC mains fuse: refer to the rating information on the
equipment and/or user instructions for details. As a guide, a cable
of 0.75mm2 should be protected by a 3A or 5A fuse. Larger
conductors would normally require 13A types, depending on the
connection method used.
Any exposed wiring from a cable, plug or connection that is
engaged in a live socket is extremely hazardous. If a cable or plug is
deemed hazardous, turn off the mains power and remove the cable,
any fuses and fuse assemblies. All hazardous wiring must be
immediately destroyed and replaced in accordance to the above
standard.
7

GPT-9000/9000A Series Quick Start Guide
INTRODUCTION
This Quick Start Guide is intended as a fast introduction to
operating the GPT-9000/9000A Series Safety Testers. This Quick
Start Guide assumes that the user is familiar with safety testers.
For comprehensive instructions on the GPT-9000/9900A Series,
please see the User Manual, located on the accompanying CD.
Series lineup
The GPT-9000/9000A Series Safety Testers are AC/DC
withstanding voltage, insulation resistance and ground bond safety
testers.
The GPT-9801/9901A are AC withstanding voltage testers, the
GPT-9802/9902A are AC/DC withstanding voltage testers and the
GPT-9803/9903/9903A are AC/DC withstanding voltage and
insulation resistance testers. The GPT-9804 & GPT-9904 include all
the test functions of the other models as well as ground bond
testing. All models can operate at up to 5kVAC for AC
withstanding voltage testing and at up to 6kVDC for DC
withstanding voltage testing (excluding the GPT-9801/9901A).
For the GPT-99XX/99XXA models, the testing terminals are also
mirrored on the rear panel for added safety and for more
permanent safety testing environments. They also include an
innovative a sweep function to view test results as a graph.
The GPT-9000 Series can store up to 100 manual tests, as well as
run up to 16 manual tests sequentially as an automatic test,
allowing the safety testers to accommodate any number of safety
standards, including IEC, EN, UL, CSA, GB, JIS and others.
8

INTRODUCTION
Note: Throughout this user manual, the terms ACW, DCW, IR and
GB refer to AC Withstanding, DC Withstanding, Insulation
Resistance and Ground Bond testing, respectively.
Model Overview
9