Videotec NTW, Instruction Manual

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nstruc
tions manual
6
6.1.4 Circuit for front flange with air
barrier
This section describes how to connect the housing’s
front flange with air barrier. The air barrier flange is
fitted with a 1/4”Gas threaded connector and has a
1/2”Gas to 1/4”Gas reduction adapter. This connector
must be connected with the compressed air circuit
supplied by a compressor.
Fig. 05 IN air 1/4“Gas – 1/2“Gas.
We recommend using the optional filter unit
for cleaning the compressed air (NXFIGRU). The
maximum air pressure to be supplied to the air
barrier is 2.5 bar. The following experimental data
give the effective air consumption, for calculating the
size of the compressor:
COMPRESSED AIR
PRESSuRE [bAR] AIR bARRIER
CONSuMPTION [M3/H]
1 7
1.5 10
2 12
2.5 14
Tab. 02
g g Take care to use the correct camera power
supply kit, according to requirements
(available power supply and required
power supply output voltage). To assemble
the power supply option it is not necessary
to remove any pre-installed component.
6.1.3 Cooling circuit
This section describes how to connect the housing
to the water cooling circuit and gives the results of
experimental data to determine the dimensions of
the latter. The housing is equipped with 1/2”Gas,
threaded, cooling water inlet and outlet connectors
with.
Use the connector on the housing body near
the front (01) as the cooling water inlet and the
connector near the back (02) as the cooling water
outlet.
This is only a general indication since the direction
from which the heat source originates and
installation constraints may make it necessary to
adapt the position of the water connectors and the
choice of input and output according to the specific
installation. This is possible because the housing
body can be rotated with respect to the support base
by adjusting the locking ties (03).
01
02
03
OUT water 1/2“Gas
IN water 1/2”Gas
Fig. 04
The following experimental data give the water flow
rate required to maintain a temperature below 45°C
inside the housing with an external temperature
Tmax =400 °C and refer to the use of water as cooling
liquid with an input temperature to the housing of
20°C.
T
environment
[°C]
WATER FLOW
RATE [L/MIN] T
inside
housing
[°C]
200 2 32
300 2.2 41
400 6.5 44
Tab. 01