Instruction Manual for TROLEX models including: TX6641, TX6642, TX6641 Intrinsically Safe Power Supply, TX6641, Intrinsically Safe Power Supply, Safe Power Supply, Power Supply

TX6641 - Intrinsically Safe Power Supply (Exi) - Installation and Operating Data

Intrinsically Safe Power Supply (Exi) - Installation and Operating Data

Trolex Ltd


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TX6641-2-UM-EN-•-P5531.1604-L
TX9130 s e r i e s
TX6641/TX6642 INTRINSICALLY SAFE POWER SUPPLIES (Ex i)

DESIGNED TO CONVERT AC SUPPLY
VOLTAGE INTO A STABILISED AND REGULATED I.S. SOURCE
FOR SUPPLYING POWER
TO APPROVED SENSORS AND ELECTRONIC CONTROL
DEVICES
ISSUE L 06/14

INSTALLATION & OPERATING DATA

contents...
1 PRINCIPAL OPERATING FEATURES 2 TECHNICAL DETAILS 3 CONFORMITY CHECK 4 DIMENSIONS AND CONNECTIONS 5 ISOLATING RELAYS 6 PRECAUTIONS 7 ACCESSORIES 8 APPROVALS AND CERTIFICATION

page 2 2 3 4 5 7 7 9

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TX9130 s e r i e s

INSTALLATION & OPERATING DATA

1 PRINCIPAL OPERATING FEATURES
The TX6641 Power Supply will convert an ac supply voltage into a stabilised and regulated Intrinsically Safe source for supplying power to approved sensors and electronic control devices.
Input voltage options: 110 V ac or 230 V ac
The input supply is protected by two primary fuses.

The output circuit is resistively limited in accordance with certification standards for Intrinsically Safe, ia, equipment.
The TX6641 Power Supply Chassis may be fitted and wired into an existing Exd housing (specific system certification may also be required) or into a standard protective housing that is in a SAFE AREA.
The TX6642 version is the TX6641 Series Power supply mounted in a Trolex Exd housing for use in a
Group I hazardous area. Intrinsically Safe isolation relays may be supplied with all versions for switching control currents emanating from
other Ex d enclosures or high voltage systems.

2 TECHNICAL DETAILS

Input Voltage: Output Voltage: Output Current: Output Ripple/Noise: Line Regulation: Load Regulation: Voltage Limiting:
Current Limiting:

110 V ac or 230 V ac, 50/60 Hz

12

V

dc

± 00..06

V V

900 mA

150 V max.

<5% over the input voltage range.

Better than 5% over 10% of load current (­10% at full load).

Over voltage detection with fuse rupturing `crowbar' protection and short

protection. Automatic current limiting to the intrinsically safe output also limits the

current to less than the rupturing capacity of the output protection fuse. `Reset' the power supply by removing the output load and then reconnecting.

Max. Operating Temperature: ­20°C to +40°C.

Storage Temperature:

­20°C to +70°C.

Humidity:

0 to 95% RH, non-condensing.

Vibration Limits/Low Frequency: 0.25 mm pk, sinusoidal vibration in the range 10 Hz to 100 Hz in 3 perpendicular planes.

Medium Frequency:

2 g pk, sinusoidal vibration in the range 10 Hz to 600 Hz in 3 perpendicular planes.

Mechanical Shock:

1000 shocks of 40 g minimum in 3 perpendicular planes.

Power Input

Input Fuse

ISSUE L 06/14

I.S. Fuse

Current Limit

Crowbar

Exi Output
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TX9130 s e r i e s

INSTALLATION & OPERATING DATA

3 CONFORMITY CHECK

110 V ac 230 V ac

Does the supply voltage marked on the product agree with the

locally available supply?

Refer to Section 4.1

900 mA

Check that the output current rating marked on the product is adequate for the total current demand of the system being installed.

Refer to Section 6

Ex d or Safe Ar ea

Is the Power Supply mounted in the correct enclosure for the application?

Ex i Gr oup I
12 V dc 12 V dc

Ensure that the Power Supply certification details are fully compliant with the monitoring system requirements. If in any doubt, please contact the Trolex Sales department.
Is the output voltage correct for the system being used?

If isolating relays are fitted, is the voltage rating of the coils correct?
Refer to Section 5

If isolating relays are fitted, are the relay parameters suitable for the load being switched?

Refer to Section 5

OPTIO NS AVAILABLE
TX6641 INTRINSICALLY SAFE POWER SUPPLY CHASSIS (Supplied loose, ready for fitting and wiring)

TX6642 INTRINSICALLY SAFE POWER SUPPLY in Ex d Housing

Input Voltage Options: 110 V ac 230 V ac

(.105) (.106)

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INSTALLATION & OPERATING DATA

4 DIMENSIONS

4 . 1 TX6641 INTRINSICALLY SAFE POWER SUPPLY CHASSIS

12.5

267

30

215

Connections
93 12 V dc output

0V +V

14 0

165

4 Ø 6.0 Fixing Holes ALL DIMENSIONS IN MM

110 V ac or 230 V ac Supply

4 . 2 TX6642 INTRINSICALLY SAFE POWER SUPPLY in Ex d HOUSING

8.0

310.0

50.0

210.0 Centres

Ex i Chamber

Ex d Chamber

2 - M20 Gland
Entries.

122.0

Connections

38.0

12 V dc output

0V +V Ex i
chamber

0V +V
Ex d chamber

304.0 Centres

304.0 Centres

Earth Stud

5 - M25 Exd Gland Entries.

ALL DIMENSIONS IN MM

8 - 9.0 Fixing Holes.

110 V ac or 230 V ac Supply
Current Limiting: Automatic current limiting to the intrinsically safe output also limits the current to less than the rupturing capacity of the output protection fuse. `Reset' the power supply by removing the output load and then reconnecting.

320.0

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INSTALLATION & OPERATING DATA

5 ISOLATING RELAYS

Isolating relays may be combined with a TX6641 Power Supply. The operating coils of the relays are Intrinsically Safe and the contacts are clearance compatible for switching

non-intrinsically safe apparatus or devices in separate Ex d enclosures (eg. P130 pilot circuits).

Exi

TX6641 Power Supply

Isolating Relay

TX6641.19

P130
Ex d Equipment (GEB)

A standard power supply chassis is fitted and wired with four independent relays with field connection facilities for coils and contacts.

5 . 1 Technical Details
Quantity of Relays Contact Type Contact Rating Coil Resistance Coil Voltage Current Consumption (each)

TX6641.19 4
One changeover 5 A, 230 V ac 460 Ohms 12 V dc 26 mA

5 . 2 Dimensions

5 . 2 . 1 TX6641.19 INTRINSICALLY SAFE POWER SUPPLY CHASSIS , with 4 ISOLATING RELAYS

27 1 267.0 (Baseplate)

30.0

215 .0

Connections
90.0

12.5

12 V dc output

R2 R1

R4 R3

Cable markers

indicate relay number

0V +V

R1

1a

1b

1c

R3

3a

3b

3c

110 V ac or 230 V ac Supply

R2

2a

2b

2c

R4 4a 4b 4c

Contacts shown with relays de-energised

ALL DIMENSIONS IN MM

8.0

5 . 2 . 2 TX6642.19 INTRINSICALLY SAFE POWER SUPPLY in Ex d HOUSING, with 4 ISOLATING RELAYS

310.0

50.0

210.0 Centres

Ex i Chamber

Ex d Chamber

2 - M20 Gland

122 .0

Entries.

38.0

304.0 Centres

Connections

12 V dc output
+V R1 +V R2

+V R3 R+4V

Ex i Chamber

0V +V

R1

1a

1b

1c

R2

2a

2b

2c

R3

3a

3b

3c

Ex d

Chamber R4 4a
4b 4c

304.0 Centres

Earth Stud

5 - M25 Exd Gland Entries.

ALL DIMENSIONS IN MM

8 - 9.0 Fixing Holes.

ISSUE L 06/14

110 V ac or 230 V dc Supply

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165 .0 140.0

320.0

TX9130 s e r i e s

INSTALLATION & OPERATING DATA

5 ISOLATING RELAYS
5 . 2 . 3 OPTIONS AVAILABLE

continued

TX6641.19 INTRINSICALLY SAFE POWER SUPPLY CHASSIS with 4 Isolating Relays

TX6642.19 INTRINSICALLY SAFE POWER SUPPLY in Ex d Housing with 4 Isolating Relays

Input Voltage Options: 110 V ac 230 V dc

(.105) (.106)

6 PRECAUTIONS

Ensure that all covers on Ex d housings and their fixing devices are properly secured in compliance with statutory Ex d regulations before switching on the input supply.

Never remove the cover of an Ex d housing whilst the input supply is connected. Isolate elsewhere before removing the cover in accordance with statutory regulations.

The housing of all power supplies must be securely earthed in compliance with statutory regulations. Carry out a current consumption audit to ensure that the maximum current loading of the power supply is not exceeded.

Ensure that the installation of the power supply, particularly with regard to the connecting cables, complies with the certification parameters (section 8).

Refer to Section 8

Ex d housings must be inspected and maintained regularly in accordance with statutory regulations.

Use only the correct Trolex replacement fuses (section 7). Do not substitute any form of equivalent or linking device.

Refer to Section 7

The TX6641 Ex i Power Supply must be mounted in an approved Ex d housing when located in a hazardous area.

All cables entering the Ex d housing must be terminated with suitable Ex d certified cable glands.

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INSTALLATION & OPERATING DATA

7 ACCESSORIES
REPLACEMENT FUSES

F3 F2

1A versions

F1

F1 = 5.0 A (F)

Type S#401.0070

F2 = 3.15 A (T) Type S#401.0062

F3 = 3.15 A (T) Type S#401.0062

TO REPLACE A FUSE
Release quarter-turn fasteners and remove label

Remove 4 M2.5 countersunk head screws to allow removal of the top plate assembly.

Place the top plate assembly to one side taking care not to strain the connecting wires to the printed circuit board.

F1 F2 F3

All the fuses are now accessible.

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TX9130 s e r i e s INSTALLATION & OPERATING DATA
7 ACCESSORIES continued
To change a fuse, the fuse cover must be removed to gain access to the fuse holder.
Remove the blown fuse and replace it with a good one. Note: The transformer securing screw may have to be loosened to enable F4 fuse cover to be removed. Ensure that the transformer securing screw is re-tightened.
All fuse covers must be replaced.
Replace top head cover assembly and secure with the 4 M2.5 countersunk head screws. Re-fit the label plate.

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INSTALLATION & OPERATING DATA

8 APPROVALS AND CERTIFICATION

8.1 TX6641

8.1.1

Europe (ATEX)
Ex Certificate number: Ex Certification code:

SIRA 01ATEX2229X I (M1) [Ex ia Ma] I (Ta = -20°C to +55°C)

Specific Conditions of Use:

1.

The TX6641 Power Supply Chassis shall be housed in an enclosure in accordance with

the following criteria:

1.1

Safe area applications: The enclosure shall have an ingress protection of at

least IP20 and the circuits of the TX6641 shall have infallible creepage and

clearance distances to the enclosure walls, as defined by clause 6.3 of

EN 60079-11:2007.

1.2

Hazardous area applications: The enclosure shall be certified and suitable for

use in hazardous area application; the arrangement of the TX6641 with the

enclosure shall be re-certified by a notified body.

2.

The connections to the relay boards must both be configured as either Option 1 or

Option 2. It is not permitted to mix the connection of these relays.

3.

The wiring carrying non-hazardous area circuits to the relays must be routed to ensure

that they are segregated from hazardous area circuits, maintaining compliance with

Table 5 of EN 60079-11:2007, namely 6 mm of clearance through air and/or 1 mm

clearance through solid insulation.

General Conditions of Use:

1.

Prior to installation, it is essential that user refers to the above certificate to ensure that the

termination and cable parameters are fully complied with and are compatible with the

application. Copies of certificates are available from Trolex.

ATEX Directive (94/9/EC) EMC Directive (2004/108/EC)

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INSTALLATION & OPERATING DATA

8 APPROVALS AND CERTIFICATION continued

8.1 TX6641 continued
8 . 1 .2 International (IECEx)

Ex Certificate number: Ex Certification code:

IECEx SIR 10.0107X [Ex ia Ma] I (Ta = -20°C to +55°C)

Conditions of Certification:

1.

The TX6641 Power Supply Chassis shall be housed in an enclosure in accordance with the

following criteria:

1.1

Safe area applications: The enclosure shall have an ingress protection of at least

IP20 and the circuits of the TX6641 shall have infallible creepage and clearance

distances to the enclosure walls, as defined by clause 6.3 of IEC 60079-11:2006.

1.2

Hazardous area applications: The enclosure shall be certified and suitable for use

in hazardous area application; the arrangement of the TX6641 with the enclosure

shall be re-certified by a notified body.

2.

The connections to the relay boards must both be configured as either Option 1 or

Option 2. It is not permitted to mix the connection of these relays.

3.

The wiring carrying non-hazardous area circuits to the relays must be routed to ensure

that they are segregated from hazardous area circuits, maintaining compliance with

Table 5 of IEC 60079-11:2006, namely 6 mm of clearance through air and/or 1 mm

clearance through solid insulation.

General Conditions of Use:

1.

Prior to installation, it is essential that user refers to the above certificate to ensure that

the termination and cable parameters are fully complied with and are compatible with

the application. Copies of certificates are available from Trolex.

8 . 1 .3 Russia (GOST-R)

Ex certificate number:

POCC GB.ME92.B02881

General Conditions of Use:

1.

Prior to installation, it is essential that user refers to the above certificate for any special

conditions for safe use. The user must ensure that the termination and cable parameters

are fully complied with and are compatible with the application. Copies of certificates

are available from Trolex.

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INSTALLATION & OPERATING DATA

8 APPROVALS AND CERTIFICATION continued

8.1 TX6641 continued

8 .1 .4 South Africa (MASC)

Ex certificate number: Ex Certification code:

MASC M/11-313X [Ex ia Ma] I (Ta = -20°C to +55°C)

Specific Conditions of Use:

1.

The TX6641 Power Supply Chassis shall be housed in an enclosure in accordance with

the following criteria:

1.1

Safe area applications: The enclosure shall have an ingress protection of

at least IP20 and the circuits of the TX6641 shall have infallible creepage

and clearance distances to the enclosure walls, as defined by clause 6.3

of EN 60079-11:2007.

1.2

Hazardous area applications: The enclosure shall be certified and suitable

for use in hazardous area application; the arrangement of the TX6641 with the

enclosure shall be re-certified by a notified body.

2.

The connections to the relay boards must both be configured as either Option 1 or

Option 2. It is not permitted to mix the connection of these relays.

3.

The wiring carrying non-hazardous area circuits to the relays must be routed to ensure

that they are segregated from hazardous area circuits, maintaining compliance with

Table 5 of EN 60079-11:2007, namely 6 mm of clearance through air and/or 1 mm

clearance through solid insulation.

General Conditions of Use:

1.

Prior to installation, it is essential that user refers to the above certificate to ensure that

the termination and cable parameters are fully complied with and are compatible with

the application. Copies of certificates are available from Trolex.

8 . 1 . 5 Australia (ANZEx)

Ex Certificate number: Ex Certification code:

ANZEx 14.3006X [Ex ia] I (Ta = -20°C to +55°C)

Conditions of Safe Use:

1.

The TX6641 Power Supply Chassis shall be housed in a suitably certified Ex d enclosure

when used in a hazardous area. When used in a non-hazardous area it must be housed

inside an enclosure that affords a degree of protection of at least IP20.

2.

The TX6641 circuits must have infallible creepage and clearance distances to the

enclosure walls, as defined by clause 6.3 of IEC 60079-11.

3.

The connections to the relay boards must both be configured as either to IS circuits or

non-IS circuits. It is not permitted to mix the connection of IS and non-IS circuits to

these relays.

4.

The wiring carrying non-hazardous area circuits to the relays must be routed to ensure

that they are segregated from hazardous area circuits, maintaining compliance with

Table 5 of IEC 60079-11:2011, namely 6 mm of clearance through air and/or 1 mm

clearance through solid insulation.

General Conditions of Use:

1.

Prior to installation, it is essential that user refers to the above certificate to ensure that

the termination and cable parameters are fully complied with and are compatible with

the application. Copies of certificates are available from Trolex.

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TX9130 s e r i e s

INSTALLATION & OPERATING DATA

8 APPROVALS AND CERTIFICATION continued

8.2 TX6642
8 .2 .1 Europe (ATEX)
Ex Certificate number: Ex Certification code:

SIRA 01ATEX1230 I M2 (M1) EEx d [ia] I (Ta = -20°C to +55°C)

General Conditions of Use:

1.

Prior to installation, it is essential that user refers to the above certificate to ensure that

the termination and cable parameters are fully complied with and are compatible with

the application. Copies of certificates are available from Trolex.

8 .2 .2 Russia (GOST-R)

Ex Certificate number:

POCC GB.ME92.B02881

General Conditions of Use:

1.

Prior to installation, it is essential that user refers to the above certificate for any special

conditions for safe use. The user must ensure that the termination and cable parameters

are fully complied with and are compatible with the application. Copies of certificates

are available from Trolex.

8 . 2 . 3 Australia (ANZEx)

Ex Certificate number: Ex Certification code:

ANZEx 14.3001X Ex d [ia] I Mb (Ta = -20°C to +55°C)

Conditions of Safe Use:

1.

It is a condition of specific use that the flamepath dimensions will be maintained in

accordance with dimensions detailed in drawing P5531.02.02.

2.

The installation entry to the main compartment shall be via suitably Ex d certified

cable gland components.

3.

It is a condition of the certificate that all conditions listed in ANZEx 14.3006X shall be

applied.

General Conditions of Use:

1.

Prior to installation, it is essential that user refers to the above certificate for any special

conditions for safe use. The user must ensure that the termination and cable parameters

are fully complied with and are compatible with the application. Copies of certificates

are available from Trolex.

ISSUE L 06/14

TROLEX LIMITED NEWBY ROAD, HAZEL GROVE, STOCKPORT,
CHESHIRE SK7 5DY, UK +44 (0)161 483 1435
sales@trolex.com www.trolex.com
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References

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