GW Instek GSP-818 Series User manual

Spectrum Analyzer
GSP-818 Series
Quick Start Guide
GW INSTEK PART NO.
ISO-9001 CERTIFIED MANUFACTURER

May 2019
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 the 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
3
Table of Contents
SAFETY INSTRUCTIONS .................................................. 4
USER NOTICE.................................................................. 9
Safety Precaution before Operation ............................9
Electro-static Discharge (ESD) Protection ................10
First Time to Power on .............................................11
GETTING STARTED........................................................ 12
Front Panel Overview................................................13
Rear Panel ................................................................15
Front Panel Function Key ..........................................17
Parameter Input .......................................................20
User Interface ...........................................................22
Build-in Help ............................................................ 24
Basic Measurement .................................................. 24
APPENDIX ..................................................................... 28
Specifications ........................................................... 28
Declaration of Conformity......................................... 33

GSP-818 Quick Start Guide
4
SAFETY INSTRUCTIONS
This chapter contains important safety
instructions that you must follow when operating
the GSP-818, and when keeping it in storage.
Read the following before operating the GSP-818
to ensure your safety and to keep the GSP-818
series in the best possible condition.
Safety Symbols
These safety symbols may appear in this manual or on the GSP-818.
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 GSP-818 or to other
properties.
DANGER High Voltage
Attention Refer to the Manual
Protective Conductor Terminal
Earth (ground) Terminal

SAFETY INSTRUCTIONS
5
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.
Safety Guidelines
General
Guideline
CAUTION
Do not place any heavy object on the GSP-818.
Avoid severe impact or rough handling that
leads to damaging the GSP-818.
Do not discharge static electricity to the GSP-
818.
Do not block or obstruct the cooling fan vent
openings.
Do not perform measurement at circuits directly
connected to Mains (Note below).
Do not disassemble the GSP-818 unless you are
qualified as service personnel.
The equipment is not for measurements
performed for CAT II, III and IV.
(Measurement categories) EN 61010-1:2010 specifies the
measurement categories and their requirements as follows. The
GSP-818 falls under category I.
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.
0 is for measurements performed on circuits not directly
connected to Mains.

GSP-818 Quick Start Guide
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Power Supply
WARNING
AC Input voltage range: 100-240Vac;
Frequency: 50/60Hz
Connect the protective grounding conductor of
the AC power cord to an earth ground, to avoid
electrical shock.
Cleaning the
GSP-818
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 or cleaners containing
harsh material such as benzene, toluene, xylene,
and acetone.
Operation
Environment
Location: Indoor, no direct sunlight, dust free,
almost non-conductive pollution (Note below)
Temperature: 0°C to 40°C
Altitude: Up to 2000m
Transient Overvoltage on the main supply is
2500V.
(Pollution Degree) EN 61010-1:2010 specifies the pollution degrees
and their requirements as follows. THE GSP-818 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.

SAFETY INSTRUCTIONS
7
Storage
environment
Location: Indoor
Relative Humidity: < 80%
Temperature: −20°C to 70°C
Disposal
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.

GSP-818 Quick Start Guide
8
Power cord for the United Kingdom
When using the GSP-818 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:
Green/ Yellow:
Earth
Blue:
Neutral
Brown:
Live (Phase)
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.

USER NOTICE
9
USER NOTICE
This chapter helps you in preparing the spectrum
analyzer for use and provides the information to
start using the spectrum analyzer correctly.
Safety Precaution before Operation
Check Power Supply
The analyzer is equipped with a three-wire power cord in
accordance with international safety standards. The product must
be grounded properly before being powered on, as floating or
improper ground may cause damage to the instrument or personal
injury.
Make sure the grounding conductor of the spectrum analyzer is
grounded before turning on the instrument. After which the AC
power cord can be connected. Do not use a non-ground power cord.
Allowed Variation Range of Supply Power Parameters
The spectrum analyzer is compatible with 100V~240V, 50Hz-60Hz
AC power. The table below lists the power requirement to run the
spectrum analyzer.
Power Supply Parameter
Compatible Range
Voltage
100 - 240 VAC
Frequency
50 - 60 Hz ±10％
Power 
22 W
To prevent or lower the risk of damage to the spectrum analyzer
from power interference between instruments, especially from peak

GSP-818 Quick Start Guide
10
pulses produced by large power consumption instruments, a
220V/110V AC regulated power supply is recommended.
Power Cord Selection
The analyzer is equipped with a three-wire power cord in
accordance with international safety standards. This cable grounds
the analyzer cabinet when connected to an appropriate power line
outlet. The cable must be rated greater than 250Vac and 2A.
WARNING
Improper grounding may cause damage to the
instrument, or result in personal injury. Make sure the
grounding conductor of the spectrum analyzer is
grounded before turning on the instrument.
Always use a well-grounded power source. Do not use
an external power cable, power cord or an auto
transformer without grounded protection. If this
product is to be powered via an external auto
transformer for voltage reduction, ensure that its
common terminal is connected to a neutral (earthed
pole) of the power supply.
Make sure the supply power is stable before turning
on the analyzer to protect it from damage. Refer to
“First Time to Power on”on page 11
Electro-static Discharge (ESD) Protection
ESD is an issue often ignored by users. Damage from ESD on the
instrument is unlikely to occur immediately but will significantly
reduce the reliability of it. Therefore, ESD precautions should be
implemented in the work environment, and applied daily.
Generally, there are two steps to manage ESD protection:
1. Conductive table mats to connect hands via
wrist bands
2. Conductive ground mat to connect feet via
ankle straps