General Description - Weidmuller Power Monitor Handbuch

3.2

General description

About this product
Power Monitor is designed primarily for
manag-ing energy-saving.
It is neither intended nor can it be legally
used for billing.
Installation environment
• Do not use the unit in the following environments.
◊ Where the unit will be exposed to direct sunlight
and where the ambient temperature is outside
the range of -25 to +50 °C.
◊ Where the ambient humidity is outside the range
of 30 to 85 % RH (at 20 °C), non-condensing
and where condensation might occur due to
sudden temperature changes.
◊ Where inflammable or corrosive gas might be
produced.
◊ Where the unit will be exposed to excessive
airborne dust or metal particles.
◊ Where the unit will be exposed to water, oil or
chemicals.
◊ Where organic solvents such as benzene, paint
thinner, alcohol, or strong alkaline solutions such
as ammonia or caustic soda might adhere to the
product.
◊ Where direct vibration or shock might be
transmitted to the product, and where water
might wet the product.
◊ In the vicinity of high-voltage cables, high-
voltage devices, power lines, power devices.
◊ In the vicinity of machinery with a transmission
function such as amateur radio.
◊ In the vicinity of machinery where large switching
surges occur.
• Please use the unit in accordance with the
specifications described in this manual. Otherwise,
it may malfunction or cause fire and an electric
shock.
◊ Connect the unit to the power supply in compli-
ance with the rating.
◊ Refer to the wiring diagram to ensure proper
wiring for the power supply, input and output.
1435710000/01/05.13
◊ Never remove the terminal block while applying
current to load. It might cause electric shock or
CT breakdown.
◊ Do not perform wiring or installation with a live
line. This may result in circuit burnout or fire by
way of the secondary CT side opening.
Installation
• Power Monitor is designed to be used in a control
panel.
• The power supply terminal and voltage input
terminal of the main unit is common. Therefore if
additional noise affects the power supply line,
incorrect measurements may result.
• Installation and wiring must be performed by
specialist personnel for electrical work or electric
piping.
• Do not add excess power to the display. It might
break the inner liquid crystal.
• Although the case is made from fireproof resin, do
not mount it next to flammable materials. Also
avoid placing it directly on top of materials that
catch fire easily.
• If the operating power supply surge exceeds the
following value, the internal circuit could be
destroyed, so make sure you use a surge
absorption element.
Surge voltage: 6,000V
Surge wave form
[± (1.2/50) μs single-polarity full-wave voltage]
100
90
50
30
0
1.2
0
• External noise up to the level shown below is
treated as noise voltage, but levels higher than this
could lead to malfunctioning or damage to the
internal circuit. Although the case is made from
fireproof resin, do not mount it next to flammable
materials.
Safety instructions
Peak
50
Time (μs)
9