AOIP VNE 2 Skrócona instrukcja obsługi

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Digital panel meters
VNE 2 - VNE 4
process
NT 46007-100F - Ed. 19 JAN 00
1. General specifications
•
2000 measurement
counts.
•
14 mm-LED display.
•
Automatic polarity.
•
2.5 measurements per second.
•
Overrange indication:
Last three digits blank.
•
Reference conditions:
23°C ± 1°C (45 % < RH < 75 %).
•
Operating range:
- 10°C + 50°C (20 % < RH < 90 %).
•
Storage temperature:
- 30°C + 70°C.
•
Weight: 100 to 200 g depending on
models.
•
Protection:
VNE 2: IP 30.
VNE 4: IP 65.
2. Safety provisions
2.1 In accordance with safety
standards
The
unit
is
constructed
according
to
the
European
EN 61010-1.
2.2 Following instructions
supplied with the
accompanying documents
The unit is constructed to operate under
safety
conditions
if
the
supplied in the accompanying documents
are followed. Any usage, except those
described, may reduce the safety of the
user and then, becomes dangerous and
prohibited.
2.3 Definition of the
installation category
This is also called overvoltage category.
4. Dimensions
VNE 2
VNE 4
Casing
It's
the
classification
standardized
overvoltages (IEC Publication 664). Level
of these limits depends on the nominal
line voltage, regarding the earth, which is
present in the unit environment.
The Publication has 4 levels of increasing
overvoltage, from CAT I to CAT IV.
2.4 Table of the symbols used
Symbol
2.5 Maintenance
The unit should be reassembled as
explained in the instruction manual. Any
and
tested
incomplete or bad reassembling may be
Norm
dangerous for the safety of the user.
The responsible body must check at
regular
time
components ensuring safety are not
subject to wear and undertake all the
necessary steps for preventive operations.
Before the casing is opened, make sure
instructions
that all the wires have been disconnected
from the unit.
The unit should not be opened up for
adjustment, maintenance or repair when
live, unless this is absolutely essential, in
which case this work should be carried out
only by qualified personnel advised of
the risk entailed.
according
to
limits
for
transient
Description
Alternating current.
Direct current.
Protective conductor
terminal.
Double
insulation.
Warning: see the
accompanying
documents.
interval
that
all
the
Panel cut-out
1
Instruction manual
2.6 EMC conformity
Performances of the
unit
following standards:
Conducted and radiated disturbances:
EN 55022/1994, class B.
Immunity: EN 50082-1/1992
Radiated: IEC 801-3/1984.
Conducted: IEC 801-4/1988.
Electrostatic discharges:
IEC 801-2/1991.
3. Characteristics
•
Safety according to the European
Norm EN 61010-1.
Category II, pollution 2.
Rated voltage:
300 V regarding the earth.
•
Accuracy: ± (0,1 % max. rdg + 1 d).
•
Temperature coefficient:
< 10 % of accuracy/°C.
•
Normal mode rejection:
> 60 dB (from 49 Hz to 63 Hz).
•
Common mode rejection:
> 110 dB (from 0 Hz to 60 Hz).
•
Analog output and brightness control
options:
- 1
mV/digit
analog
output
> 2 kΩ) between COM. and "Anal.
out".
- To control the display brightness,
wire one 1 kΩ potentiometer between
the common (com.) and + 5 V, the
cursor to
, then open the LUM link
located on the board.
WARNING: Options are set to the
measurement potential (see diagram 7).
meet
the
(load