GW Instek GDS-122 User Manual User Manual
Page 4
Safety
Instructions
7
•
Do not perform measurements at a power
generating source or building installation site
(see note below).
•
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. This instrument 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. Measurement category I is for
measurements performed on circuits not directly connected to Mains.
Power Supply
WARNING
•
AC Input voltage: 100 to 240V, 50/60Hz
•
The power supply voltage should not fluctuate
more than 10%.
•
Always use the AC adaptor included in the
package.
•
Always connect the AC adaptor to the mains
line first, then to the instrument.
Cleaning the
instrument
•
Disconnect the power cord before cleaning the
instrument.
•
Use a soft cloth dampened in a solution of mild
detergent and water. Do not spray liquid into
the instrument.
•
Do not use chemicals or cleaners containing
harsh products such as benzene, toluene,
xylene, and acetone.
Operation
Environment
•
Location: Indoor, no direct sunlight, dust free,
most non‐conductive pollution (see note below)
•
Relative Humidity: < 75%
•
Altitude: < 2000m
•
Temperature: 0°C to 40°C
(Pollution Degree) EN 61010-1:2001 specifies the pollution degrees and
their requirements as follows. This 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.
GDS-122 User Manual
8
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.
Storage
environment
•
Location: Indoor
•
Relative Humidity: < 75%
•
Temperature: −10°C to 70°C
Power cord for the United Kingdom
When using the instrument 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 colours 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 the
letter E or by the earth symbol
or coloured Green or 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, 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,
fuses and fuse assemblies. All hazardous wiring must be immediately destroyed and replaced
accordance to the above standard.
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in