Videotec NXW User manual

EN English - Instructions manual

IT Italiano - Manuale di istruzioni

FR Français - Manuel d’instructions

DE Deutsch - Bedienungslanleitung



Руководство по эксплуатации

NXW

Special stainless steel liquid-cooled housing

EN English - Instructions manual

ENGLISHENGLISH

NXW

Special stainless steel liquid-cooled housing

Contents

ENGLISH

1 About this manual........................................................................................................ 3

1.1 Typographical conventions ................................................................................................................................ 3

2 Notes on copyright and information on trademarks................................................. 3

3 Safety rules ................................................................................................................... 3

4 Identication ................................................................................................................ 4

4.1 Product description and type designation................................................................................................... 4

4.2 Product markings................................................................................................................................................... 4

5 Preparing the product for use..................................................................................... 4

5.1 Contents and unpacking ..................................................................................................................................... 4

5.2 Safely disposing of packaging material ......................................................................................................... 4

6 Assembling and installing ........................................................................................... 5

6.1 Installation ................................................................................................................................................................ 5

6.1.1 Preparing the housing.......................................................................................................................................................... 5

6.1.2 Opening the housing............................................................................................................................................................ 5

6.1.3 Installing the camera ............................................................................................................................................................ 6

6.1.4 Cooling circuit ......................................................................................................................................................................... 6

6.1.5 Circuit for front ange with air barrier............................................................................................................................ 7

6.1.6 Installing the camera power supply kit.......................................................................................................................... 7

6.1.7 Installing the IR radiation lter glass kit......................................................................................................................... 8

7 Maintaining and cleaning............................................................................................ 8

7.1 Window cleaning.................................................................................................................................................... 8

8 Disposal of waste materials......................................................................................... 8

9 Technical data ............................................................................................................... 9

9.1 General....................................................................................................................................................................... 9

9.2 Mechanical................................................................................................................................................................ 9

9.3 Electrical .................................................................................................................................................................... 9

9.4 Environment............................................................................................................................................................. 9

9.5 Compliance to ......................................................................................................................................................... 9

10 Technical drawings................................................................................................... 10

EN - English - Instructions manual

1 About this manual

Before installing and using this unit,

please read this manual carefully. Be sure

to keep it handy for later reference.

1.1 Typographical conventions

g DANGER!

High level hazard.

Risk of electric shock. Disconnect the

power supply before proceeding with any

operation, unless indicated otherwise.

h WARNING!

Medium level hazard.

This operation is very important for

the system to function properly. Please

read the procedure described very

carefully and carry it out as instructed.

j INFO

Description of system specications.

We recommend reading this part

carefully in order to understand

the subsequent stages.

2 Notes on copyright and

information on trademarks

The quoted names of products or companies

are trademarks or registered trademarks.

3 Safety rules

h The manufacturer declines all responsibility

for any damage caused by an improper use

of the appliances mentioned in this manual.

Furthermore, the manufacturer reserves

the right to modify its contents without

any prior notice. The documentation

contained in this manual has been

collected with great care, the manufacturer,

however, cannot take any liability for

its use. The same thing can be said for

any person or company involved in the

creation and production of this manual.

• The device must be installed only and

exclusively by qualied technical personnel.

• Before any technical work on the appliance,

disconnect the power supply.

• Do not use power supply cables

that seem worn or old.

• Never, under any circumstances, make any

changes or connections that are not shown in

this handbook: improper use of the appliance

can cause serious hazards, risking the safety

of personnel and of the installation.

• Use only original spare parts. Not original

spare parts could cause re, electrical

discharge or other hazards.

• Before proceeding with installation check the

supplied material to make sure it corresponds

to the order specication by examining the

identication labels ("4.2 Product markings", page 4).

EN - English - Instructions manual

5 Preparing the

product for use

h Any change that is not expressly

approved by the manufacturer

will invalidate the guarantee.

5.1 Contents and unpacking

When the product is delivered, make sure that

the package is intact and that there are no

signs that it has been dropped or scratched.

If there are obvious signs of damage,

contact the supplier immediately.

Keep the packaging in case you need

to send the product for repairs.

Check the contents to make sure they correspond

with the list of materials as below:

• NXW housing

• Housing equipment:

• Allen wrench

• Spacers

• Screws and washers

• Screws for camera

• Instructions manual

5.2 Safely disposing of

packaging material

The packaging material can all be recycled.

The installer technician will be responsible for

separating the material for disposal, and in

any case for compliance with the legislation

in force where the device is to be used.

Bear in mind that if the material has to be returned

due to a fault, using the original packaging

for its transport is strongly recommended.

4 Identiﬁcation

4.1 Product description

and type designation

The solid construction of this housing makes

it suitable for heavy duty applications, such

as the surveillance of ovens, foundries and

other high temperature environments.

The NXW housing is entirely constructed from

electropolished stainless steel and consists of a body

with a double chamber for the circulation of a cooling

liquid or air. The NXW is enclosed by two thick anges

at either end and allows cables to pass through by

means of two PG13.5 cable glands on the back ange.

The front ange can be equipped with tempered

glass, IR glass or Vicor glass for higher temperature.

A special version is available with IR-proof glass.

Two 1/2”GAS connectors allow for the

cooling liquid inow/outow.

The NXW is equipped with a ange designed to

create an air barrier in front of the glass. This prevents

the formation of dust deposits and attenuates

the heat of the glass itself. With the supplied air

barrier, the NXFIGRU lter group is recommended,

which puries the air drawn from a compressor.

4.2 Product markings

See the label attached to the outside of the package.

EN - English - Instructions manual

Position the front ange of the housing on the body,

making sure that the sealing rings are correctly

inserted in their seating so as not to damage them.

Tighten the 4 screws using the allen wrench supplied.

Fig. 03

6.1.2 Opening the housing

To open the housing, unscrew the 4 screws on the

back ange using the allen wrench supplied.

Slide out the rear cover plate of the housing, taking

care to leave the sealing washer in its seating.

Fig. 04

It will then be easy to gain access to the inside

of the housing without having to dismantle it

from the support bracket if already assembled.

6 Assembling

and installing

h Only specialised personnel should be

allowed to assemble and install the device.

h In the 230Vac powered conguration

it is necessary to insert a 1 0 unipolar

main switch (open contact distance

d>3 mm) upstream on the power

line. This switch should be used to

disconnect the power supply before

carrying out any maintenance operation

or before opening the housing.

6.1 Installation

6.1.1 Preparing the housing

Dismantle the front ange of the

housing by unscrewing the four screws

using the allen wrench supplied.

Fig. 01

Position the glass in its seating on the ange, after

correctly inserting the O-rings in the order as shown.

Fig. 02

For IR radiation lter glass see the specic

assembly instructions given later.

EN - English - Instructions manual

6.1.4 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

specic installation. This is possible because the

housing body can be rotated with respect to the

support base by adjusting the locking ties (03).

02 03

OUT water 1/2“Gas

IN water 1/2”Gas

Fig. 07

The following experimental data give the water

ow 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

6.1.3 Installing the camera

This section describes how to install

the camera inside the housing.

Open the housing following the instructions

given above (Fig. 04, page 5).

Attach the camera to the internal slide with the 1/4”W

screw using the insulating bush. If necessary use the

spacers supplied and the appropriate 1/4”W screws

so as to position the camera and lens correctly.

Fig. 05

Make the correct electrical connections for

the camera and lens, passing the cables

through the cable glands. Make sure the

latter are rmly locked in place.

Close the housing by proceeding in the reverse

order to that described above (Fig. 04, page 5). Make

sure the sealing ring on the rear ange is correctly

inserted in its seating so as not to damage it.

Attach the housing to the bracket if this

has not been assembled already.

Fig. 06

EN - English - Instructions manual

6.1.6 Installing the camera

power supply kit

This section describes how to install the camera

power supply kit inside the housing. It is possible to

install a number of dierent types of power supply.

The input voltage may be 230Vac or 115Vac while

the output voltage may be 12Vdc or 24Vac, 400mA.

Open the housing following the instructions

given previously (Fig. 04, page 5).

Position the power supply to match the

attachment holes provided on the inner

side of the rear ange of the housing.

Attach the power supply to the rear

plate of the housing using the screws

supplied with the power supply kit.

Fig. 09

Make the power supply-camera

electrical connections.

Close the housing, proceeding in the reverse order

to that described above, making sure the sealing

ring on the rear ange is correctly inserted in its

seating so as not to damage it (Fig. 04, page 5).

6.1.5 Circuit for front

ange with air barrier

This section describes how to connect the housing’s

front ange with air barrier. The air barrier ange

is tted 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. 08 IN air 1/4“Gas – 1/2“Gas.

We recommend using the optional lter 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 eective 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 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.

EN - English - Instructions manual

7 Maintaining and cleaning

7.1 Window cleaning

Surface dirt should be rinsed away with water and

then the window cleaned with a neutral soap diluted

with water, or specic products for spectacle lens

cleaning. These should be applied with a soft cloth.

h Avoid ethyl alcohol, solvents,hydrogenated

hydrocarbide, strong acid and alkali.

Such products may irreparably

damage the surface.

8 Disposal of waste

materials

n This symbol mark and recycle system

are applied only to EU countries

and not applied to the countries

in the other area of the world.

Your product is designed and manufactured

with high quality materials and components

which can be recycled and reused.

This symbol means that electrical and electronic

equipment, at their end-of-life, should be disposed

of separately from your household waste.

Please dispose of this equipment at your local

Community waste collection or Recycling centre.

In the European Union there are separate collection

systems for used electrical and electronic products.

6.1.7 Installing the IR

radiation lter glass kit

This section describes how to install the IR

radiation lter glass. The kit consists of a pair

of IR lter glasses and a special front ange

with air barrier that is dierent from the

standard one, which should be replaced.

Dismantle the front ange of the

housing by unscrewing the 4 screws

using the allen wrench supplied.

Position the glass pair in the appropriate Tmax

seating on the new ange supplied with the

kit, after correctly inserting the O-ring seals.

Mark for IRR glasses

Fig. 10

h Make sure the IR lter glasses face

the right direction. The glasses have a

reference mark showing the side that

should face towards the outside of the

housing i.e. towards the direction from

which the IR radiation will arrive.

Position the front ange now tted with the

IR lter glasses on the housing, making sure

the sealing rings are correctly inserted in their

seating so as not to damage them. Tighten the

4 screws using the allen wrench supplied.

The maximum working temperature of

these IR lter glasses is Tmax = 300°C.

The percentage of IR radiation ltered

by these IR lter glasses is 80%.

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