NOVAR 2100/2200 Operating Manual
2. Installation
2.1 Physical
The instrument is built in a plastic box to be installed in a distribution board panel. The instrument’s
position must be fixed with locks. Put the locks into square inserts placed diagonally on the top and
bottom of the box and tighten the screws to the panel.
Fig.1: NOVAR 2100/2200 – fixation with locks detail
Natural air circulation should be provided inside the distribution board cabinet, and in the instrument’s
neighbourhood, especially underneath the instrument, no other instrumentation that is source of heat
should be installed.
2.2 Instrument Connection
2.2.1 Power Supply and Measuring Voltage
Be careful not to exceed maximum input voltage according the technical parameters,
especially when line-to-line voltage is connected !!!
2.2.1.1 NOVAR 2100
It is necessary to connect an auxiliary supply voltage in the range as declared in technical
specifications table to the terminals
L1
(No. 1) and
N/L2
(No.2). The instrument uses this power
supply voltage as measuring voltage simultaneously.
The supply voltage must be connected via a disconnecting device ( switch - see installation diagram ).
It must be situated directly at the instrument and must be easily accessible by the operator.
The
disconnecting device must be labelled as the disconnecting device of the equipment.
A two-pole
circuit breaker with the C-type tripping characteristics rated at 1A may be used for the disconnecting
device; however its function and position must be clearly marked (symbols „O" and „I" according to EN
61010 – 1).
A connection cable maximum cross section area is 2.5 mm
2
.
9
