Installation and Operating
Instructions
Analogue Instruments
Panel Indicators - Challenger Series
Products Covered
361-**, 362-**, 363-** 364-**
(* = additional characters)
Scope
This product range includes multiple functions:
AC Ammeters and AC Voltmeters
DC Ammeters
DC Voltmeters
Frequency meters
Markings and Ratings
Barrel side labels show function and electrical rating. The terminals are
connected directly across the input to be measured.
Note: that the electrical rating may differ from the dial scale marking, and
the unit side label is definitive.
INDOOR USE
These meters are intended for a rated temperature range of 0 to +40°C
and at an altitude not exceeding 2000m.
Maximum Relative Humidity 80% for temperatures up to 31°C
decreasing linearly to 50% Relative Humidity at 40°C
Pollution Degree 1 or 2
Measurement Category III
Installation
The product should be panel mounted using the mounting kit provided.
Consideration should be given to the space required behind the unit to
allow for bends in the connecting cables. Additional protection to the panel
may be obtained by the use of an optional panel gasket. The terminals at
the rear of the case should be protected from liquids. Units should be
mounted in a reasonably stable ambient temperature.
The unit should not be mounted where it can be subjected to excessive
direct sunlight and vibration should be kept to a minimum. Connection
wires should be sized to comply with local regulations and should be
terminated on to tags suitable for screw connection. The products do not
have internal fuses, therefore; external fuses
must
be used for safety
protection under fault conditions.
Fusing and Connections
Connection diagrams should be carefully followed to ensure correct
polarity. Terminals are suitable for use with insulated ring lugs.
Voltage input lines where required should be fused with a quick blow fuse
1A maximum. Current metering circuits directly connected in line with the
load must be fused at the rated current for the meter. Do not fuse CT
circuits.
The equipment into which this meter is installed must have an adjacent
means of isolating the supply voltage to permit safe access for subsequent
maintenance.
External voltage transformers (PTs) and current transformers may be
used where appropriate to extend the range, provided that the ratings
marked on the side label are not exceeded at point of connection to meter.
These products are designed for permanently connected use, normal
condition measurement category III, pollution degree 2 (e.g. non ventilated
panels or ventilated panels with filters, without condensation occurring),
basic insulation, for rated voltage.
Warnings
•
During normal operation, voltages hazardous to life may
be present at some of the terminals of this unit.
•
At voltages below that specified in the Range of Use the
meter may shut down. However, voltages hazardous to life
may still be present at some of the terminals of this unit.
•
Installation and servicing should be performed only by
qualified, properly trained personnel abiding by local
regulations.
•
Ensure all supplies are de-energised before attempting
connection or other procedures.
•
Terminals should not be user accessible after
installation and external installation provisions must be
sufficient to prevent hazards under fault conditions.
•
This unit is not intended to function as part of a system
providing the sole means of fault protection - good
engineering practice dictates that any critical function be
protected by at least two independent and diverse means.
•
The unit does not have internal fuses therefore external
fuses must be used for protection and safety under fault
conditions.
•
Never open-circuit the secondary winding of an
energized current transformer.
•
This product should only be operated with the CT
secondary connections earthed.
•
If this equipment is used in a manner not specified by
the manufacturer, protection provided by the equipment may
be impaired.
The unit is designed in accordance with BS EN 61010-1:2010
(IEC 61010-1:2010) – Permanently connected use, Normal
condition. Installation category III, pollution degree 1 or 2, basic
insulation for rated voltage. Measurement Category III.
EMC Installation Requirements
•
Whilst this unit complies with all relevant FCC and other
(electro-magnetic compatibility) regulations, any additional
precautions necessary to provide proper operation of this and
adjacent equipment will be installation dependent and so the
following can only be general guidance:
•
Avoid routing wiring to this unit alongside cables and
products that are, or could be, a source of interference.
•
The supply to the unit should not be subject to excessive
interference. In some cases, a supply line filter may be required.
•
To protect the product against incorrect operation or
permanent damage, surge transients must be controlled. It is
good EMC practice to suppress transients and surges at the
source. The unit has been designed to automatically recover
from typical transients; however, in extreme circumstances it
may be necessary to temporarily disconnect the supply for a
period of greater than 10 seconds to restore correct operation.
•
Screened communication leads are recommended and may
be required. These and other connecting leads may require the
fitting of RF suppression components, such as ferrite absorbers,
line filters etc., if RF fields cause problems.
•
It is good practice to install sensitive electronic instruments
that are performing critical functions in EMC enclosures that
protect against electrical interference causing a disturbance in
function.
Symbols
Caution
Risk of Electric Shock
Refer to Manual
Safety
Caution
Risk of Electric Shock
It is essential that the primary current is isolated
BEFORE connecting or disconnecting the secondary
current connections.
Do NOT Discard
