WARNING
With regard to the electricity supply, there are risks
of electric shock, heat generation, fire, and arc flash
due to short circuits. If persons unfamiliar with
electricity measuring device are to use the device,
another person familiar with such devices must
supervise operations.
Notation
In this document, the risk seriousness and the hazard levels are
classified as follows.
DANGER
Indicates an imminently hazardous situation
that will result in death or serious injury to the
operator.
WARNING
Indicates a potentially hazardous situation
that may result in death or serious injury to the
operator.
Indicates prohibited actions.
Indicates the action which must be performed.
Symbols affixed to the device
Indicates cautions and hazards. When the symbol
is printed on the device, refer to a corresponding
topic in the Instruction Manual.
Indicates a grounding terminal.
Indicates the Waste Electrical and Electronic
Equipment Directive (WEEE Directive) in EU
member states.
Indicates that the device conforms to regulations
set out by the EC Directive.
Measurement categories
This device conforms to the safety requirements for CAT II 1000 V,
CAT III 600 V measuring devices.
T
Outlet
CAT II
(≤1000 V)
Internal wiring
Distribution panel
Service entrance
Service drop
CAT IV
(≤600 V)
Power meter
CAT III
(≤600 V)
Fixed installation
For more information, see the power meter’s instruction manual.
Operating Precautions
Device installation
To keep the device from becoming hot, leave at least 20 mm of
space between it and any surrounding objects.
Operating environment: See the power meter instruction manuals.
DANGER
•
To prevent electrical shock and bodily injury, do
not touch any input terminals on the VT (PT), CT
or the device when they are in operation.
•
Do not use the device with circuits that exceed its
ratings or specifications. Doing so may damage
the device or cause it to become hot, resulting in
bodily injury/electric shock.
•
To avoid electric shock, do not remove the
device's case.
•
This device should only be connected to the
secondary side of a breaker. If a short circuit
occurs in the secondary side, the breaker will
interrupt the circuit to prevent a short-circuit
current from flowing through the secondary side
circuit. A large current will flow if a short-circuit
occurs in the primary side, resulting in damages
to the device and the installation.
•
To prevent electric shock, use crimp contacts that
cover live wires with insulation.
WARNING
•
In order to prevent electric shock and short-circuit
accidents, shut off the power to the line to be
measured before connecting the device.
•
The device’s current input terminals may become
hot when measuring a large current. Exercise care
during measurement and when disconnecting
wires.
•
Connect measurement lines to current input
terminals securely. If a terminal is loose, the
contact resistance will increase, resulting in
overheating, equipment burnout, or fire.
•
To avoid damage to the device, protect it from
physical shock when transporting and handling.
Be especially careful to avoid physical shock from
dropping.
•
To prevent device damage or electric shock,
use only the input screws (M6) or safety covers
that are originally installed. If you have lost any
screws or find that any screws are damaged,
please contact your Hioki distributor for a
replacement.
This device may cause interference if used in residential areas.
Such use must be avoided unless the user takes special
measures to reduce electromagnetic emissions to prevent
interference to the reception of radio and television broadcasts.
Preliminary Checks
Before using the device, verify that no damage occurred during
storage or shipping. If you find any damage, contact your authorized
Hioki distributor or reseller.
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