M-system 47LPT Operating Manual

OPERATING MANUAL
VT INPUT DIGITAL PANEL METER
(4 1/2 digit, LED display type, true RMS sensing)
BEFORE USE ....
Thank you for choosing M-System. Before use, please check
contents of the package you received as outlined below.
If you have any problems or questions with the product,
please contact M-System's Sales Office or representatives.
■ PACKAGE INCLUDES:
Digital panel meter ...................................................... (1)
Engineering unit sticker label sheet ........................... (1)
■ MODEL NO.
Confirm Model No. marking on the product to be exactly
what you ordered.
■ OPERATING MANUAL
This manual describes necessary points of caution when
you use this product, including installation, connection,
basic maintenance procedures and detailed operations.
POINTS OF CAUTION
■ CONFORMITY WITH EC DIRECTIVES
• This equipment is suitable for use in a Pollution Degree 2
environment and in Measurement Category III, Installa-
tion Category II, with the maximum operating voltage of
300V.
Reinforced insulation is maintained between signal input,
output and power input. Prior to installation, check that
the insulation class of this unit satisfies the system re-
quirements.
• Altitude up to 2000 meters
• The equipment must be installed such that appropriate
clearance and creepage distances are maintained to con-
form to CE requirements. Failure to observe these re-
quirements may invalidate the CE conformance.
• In order to enable the operator to turn off the power input
immediately, install a switch or a circuit breaker accord-
ing to the relevant requirements in IEC 60947-1 and IEC
60947-3 and properly indicate it.
■ POWER INPUT RATING & OPERATIONAL RANGE
Locate the power input rating marked on the product and
confirm its operational range as indicated below:
100 – 240V AC rating: 85 – 264V, 50/60 Hz, approx. 6.5VA
24V DC rating: 24V ±10%, approx. 3W
110V DC rating: 85 – 150V, approx. 3W
■ GENERAL PRECAUTIONS
• Before you remove the unit or mount it, turn off the power
supply and input signal for safety.
• Be sure to put the terminal cover on while the power is
supplied.
MODEL
■ ENVIRONMENT
• Indoor use
• When heavy dust or metal particles are present in the air,
install the unit inside proper housing with sufficient ven-
tilation.
• Do not install the unit where it is subjected to continuous
vibration. Do not subject the unit to physical impact.
• Environmental temperature must be within -10 to +55°C
(14 to 131°F) with relative humidity within 30 to 90% RH
in order to ensure adequate life span and operation.
• Be sure that the ventilation slits are not covered with ca-
bles, etc.
■ REQUIREMENTS TO ENSURE IP66
• Observe the designated panel cutout size (W92 × H45
mm).
• The watertight packing included in the product package
must be placed behind the front cover.
• Both mounting brackets must be fastened tightly until
they hit the panel.
• Confirm visually that the packing is not contorted or ex-
cessively run off the edge after installation.
■ WIRING
• Make sure for safety that only qualified personnel per-
form the wiring.
• Do not install cables (power supply, input and output)
close to noise sources (high frequency line, etc.).
• Do not bind these cables together with those in which
noises are present. Do not install them in the same duct.
■ AND ....
The unit is designed to function as soon as power is sup-
plied, however, a warm up for 10 minutes is required for sat-
isfying complete performance described in the data sheet.
47LPT
47LPT
EM-9506-B Rev.6 P. 1 / 16