Differential Probe
GDP-025/050/100 Series
USER MANUAL
GW INSTEK PART NO. 82DP-10000MA1
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 Corporation.
The information in this manual was correct at the time of printing.
However, Good Will continues to improve its products and therefore
reserves the right to change the specifications, 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 ...................................... 8
GETTING STARTED ................................9
Mai n Features ........................................................... 9
Instrument Overview ................................................. 11
GDP-025 ................................................................................ 11
GDP-050/ GDP-100............................................................... 11
MEASUREMENT.................................. 13
Operation ................................................................13
APENDIX .......................................... 16
GDP Series Specifications...........................................16
EC Declaration of Conform ity ..................................... 20
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GDP Series User Manual
WARNING
Warning: Identifies conditions or practices that
could result in injury or loss of life.
CAUTION
Caution: Identifies conditions or practices that
could result in damage to the instrument or to
other objects or property.
DANGER High Voltage
Attention: Refer to the Manual
Protective Conductor Terminal
Earth (Ground) Terminal
SAFETY INSTRUCTIONS
This chapter contains important safety instructions
that should be followed when operating and
storing a differential probe. Read the following
before any operation to ensure your safety and to
keep the instrument in the best condition.
Safety Symbols
These safety symbols may appear in this manual or on the
instrument.
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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 use the probes in a damp environment or
where there is risk of explosion.
Do not use the probe with the case open.
Disconnect the inputs and outputs of the probe
before opening the case.
The probes are for indoor use only.
Do not place heavy objects on the instrument.
Avoid severe impact or rough handling that
may damage the instrument.
Use only mating connectors, not bare wires, for
the terminals.
The instrument should only be disassembled by
a qualified technician.
(Measurement categories) EN 61010-1:2001 specifies the
measurement categories and their requirements as follows. The
GDP Series falls under category III.
Measurement category IV is for measurement performed at the
source of a low-voltage installation.
Measurement category III is for measurement performed in a
building installation.
Measurement category II is for measurement performed on
circuits directly connected to a low voltage installation.
Measurement category I is for measurements performed on
circuits not directly connected to Mains.
Safety Guidelines
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GDP Series User Manual
Electrical Safety
WARNING
Make sure the maximum differential voltage
does not exceed 1400V (DC+AC peak) or 450
Vrms for the GDP-025 or 7000V (DC+AC peak)
or 2200 Vrms for the GDP-050/GDP-100
Make sure the maximum voltage between each
input terminal and ground does not exceed 600
Vrms for the GDP-025 or 6500 Vrms for the
GDP-050/GDP-100
Cleaning the
instrument
The probes do not require any particular
cleaning.
A soft cloth dampened in a solution of mild
detergent and water can be used to clean the
case.
Do not spray any liquid into the instrument.
Do not use chemicals containing harsh products
such as benzene, toluene, xylene, and acetone.
Operation
Environment
Location: Indoor, no direct sunlight, dust free,
almost non-conductive pollution (Note below)
Relative Humidity: 10 to 85%
Temperature: 0°C to 50°C
(Pollution Degree) EN 61010-1:2001 specifies pollution degrees and
their requirements as follows. The instrument 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.
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