Delta-controls 310 Manuel d'utilisateur télécharger pdf (Page 2)

WIRING

Cable Glands and adaptors – The enclosure is supplied with a through hole of 22 mm

blanked with a blind grommet. Discard the grommet and fit a suitable proprietary brass or

nylon M20 cable gland with thread length of 10 mm and locknut. Fit the nylon reducer

provided to the inside and a fibre washer to the outside. See diagram 1.

Alternately, the enclosure may be supplied from the factory with a threaded adaptor ready

to accept the customer’s gland or conduit system.

Alternatives:

i) a metal or nylon adaptor may be used to accommodate other sizes of gland eg

NPT, or conduit system. See diagram 2.

ii) an elbow kit may be supplied to enable the entry to be rotated axially through

90° and radially through 360°. See diagram 3.

Earthing / grounding – The user must make suitable local earthing arrangements, if

required, to ensure that metal glands are earthed.

An earthing point is provided inside the enclosure. If this is disturbed in any way it must

be reassembled correctly to be an effective earth and retain ingress protection. See

diagram 4. When removing the lid slacken the M4 nut first and ensure it is re tightened

whenever the lid is replaced. See diagram 4.1.

EARTHING / GROUNDING OF PROCESS CONNECTION AND MOUNTING

BRACKETS – All the internal dead metal work is bonded to the enclosure earthing point.

Due to requirements of sealing, the process connection and mounting brackets may be

isolated from the earthing point. Do not, therefore, rely on either for earthing, instead

always use the earthing point provided. If required, the process connection and mounting

brackets may be bonded locally. Never use the process connection or inlet pipe for

locally grounding welding equipment unless it is separately earth bonded.

Pollution degree – all products are suitable for use in pollution degree 3.

Electrical isolation – These products are not suitable for electrical isolation. Always isolate

circuit separately to carry out any electrical work.

T A B L E A

–

M I C R O S W I T C H R A T I N G S

S W I T C H

C O D E

U L / C S A

M I C R O S W I T C H

I E C 9 4 7

1 / E N 6 0 9 4 7

1 R A T I N G

R A T I N G

( R E S I S T I V E )

U i m p

U i

D e s i g n a t i o n

U t i l i s a t io n

Category

V A

* S E E N O T E

R AT I N G

( Ie IU e )

M ak e

B re a k

5 A @ 11 0 / 2 5 0

V A C

0 . 6 / 0 . 3 A @

1 2 0 / 2 4 0 V A C

A C 1 4 / D3 0 0

4 3 2

7 2

0 0

0 . 8 k

2 5 0 V

0 . 2 2 / 0 . 1 A @

1 2 5 / 2 5 0 V D C

D C 1 3 / R3 0 0

D C

2 8

5 A @ 11 0 / 2 5 0

V A C

0 . 6 / 0 . 3 A @

1 2 0 / 2 4 0 V A C

A C 1 4 / D3 0 0

A C

4 3 2

7 2

0 2

0 . 8 k

2 5 0 V

2 A @ 30 V D C

. 2 2 / 0 . 1 A @

1 2 5 / 2 5 0 V D C

D C 1 3 / R3 0 0

D C

2 8

1 A @ 12 5 V A C

0 4

1 A @ 1 2 5 V A C R E S I S T I V E ( I E C 1 0 5 8

1 / E N 6 1 0 5 8

1 )

* 1 0 0 m A @ 3 0

V D C

The electrical rating is dependent on the microswitch fitted to the

instrument. The electrical rating is defined by each approval

that the microswitch complies with and is shown on the product

nameplate, ie UL / CSA, or IEC. It should be noted that the

switch must be used within the electrical rating specified from

the approval you require. Table A lists the actual IEC ratings

against the Designation & Utilisation Category marked on the

nameplate. In the absence of any verification by UL / CSA the

microswitch *manufacturer’s rating is specified in bold italics

If in doubt, seek guidance from factory.

ENCLOSURE WALL

LOCKNUT

NYLON 22/20

REDUCER

FIBRE WASHER

PROPRIETARY

GLAND

CABLE GLAND ASSY

DIAG 1

CABLE GLAND /

CONDUIT ADAPTOR

DIAG 2

ADAPTOR ASSY

GLAND

SCREW

FIBRE

WASHER

O RING

SEAL

½" NPT Pg 13.5

M20 X 1.5 ¾ ET

ENCLOSURE

WALL

DIAG 3

ELBOW ASSY

EARTH LABEL

ENCLOSURE WALL

(EXTERIOR)

SCREW

BONDED SEAL

SINGLE

COIL

WASHER

PLAIN

WASHERS

STAR WASHER

NUT

DIAG 4

EARTHING ASSY

M4 PLAIN

WASHER

M4 SCREW

EARTH

STRAP

M4 STUD

M4 SINGLE

COIL WASHER

M4 NUT

LID

BASE

GASKET

DIAG 4.1

EARTH STRAP

Declaration of Conformity

We: Delta Controls Ltd

Island Farm Avenue

West Molesey

Surrey, UK

KT8 2UZ

As the manufacturers of the apparatus listed, declare under our sole responsibility that the products listed

below:

Pressure, Pressure Difference, Temperature & Flow switches series “W” or “A”:

201, 202, 203, 281, 204, 207, 208, 209, 231, 232, 233, 234, S21, S22, S24, GR2, GR4, VM2, VM4.

301, 303, 304, 381, 384, 306, 386, 310, 316, S31, S34, GR3, GR6.

721, 731, 771, 722, 732, 772, 723, 733, 773, 781, 734, 774, 741, 742, 743, 744, S71, GR7.

131.

To which this declaration relates are in conformity with the following relevant standards or parts thereof:

EN 60947-1 :1992 Low voltage switch gear and control-gear-general rules.

EN 60947-5-1:1992 Low voltage switch gear and control-gear-control circuit devices and switching

elements.

EN 60529: 1991 Specification for classification of degrees of protection provided by enclosures.

EN 60950:1992 Safety of information technology equipment including electrical business equipment:

section 2.5.

BS 6134:1991 Specification for pressure and vacuum switches.

And thereby conforms to the requirements of the Low Voltage Directive 73/23/EC amended by 93/68/EEC.

Signed:

………………….

R. Harrison

Managing Director

Original dated 22

June 2000

Rev. B dated 12

August 2009

Low Voltage Directive (LVD) – 2006/95/AC. Switch products with enclosure codes

‘W’ and ‘A’ supplied CE-marked must be installed and used in accordance with the

main instructions and this addendum supplied with each product. Products rated

lower than 50V ac and 75 V dc are outside the scope of the LVD, and therefore, do

not require CE-marking under this directive. The LVD does not apply to products

with enclosure codes ‘H’, ‘K’, ‘R’, ‘M’, ‘N’ for use in hazardous areas. Switch products

with enclosure codes ‘H’, ‘K’, ‘R’, ‘M’, ‘N’, are covered by the Explosive Atmospheres

Directive ATEX – 94/9/EC and when CE-marked will indicate compliance with this

directive alone. The following directives do not apply to switch products

manufactured by Delta Controls:

Electromagnetic Compatibility EMC – 2004/108/EC

Machinery Safety Directive MSD – 2006/42/EC

1 2

PRODUCT CODE 1
CABLE GLAND ASSY 2

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Delta-controls 310 Manuel d'utilisateur Page 2

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