Servomex 1900 Manuale utente

1900

Oxygen Analyser

Hazardous Area

™

Please record your analyser details below

Part Number

Serial Number

Tag Number

Certification

●See enclosed envelope for copies of approvals, certificates and conditions.

Certificazione

●Autorizzazioni, condizioni ed attestati sono riportati nella busta allegata.

Bescheinigungen

●Für Kopien der Zulassungen, Zertifikate und Bedingungen siehe beigefügten Umschlag.

Attestations

●Voir l’enveloppe ci-jointe pour les copies de l’homologation, des certificats et des conditions.

Certificatie

●Zie de bijgesloten enveloppe voor kopieën van de goedkeuringen, certificaten en condities.

Certificación

●Para las copias de aprobaciones, certificados y condiciones véase el sobre adjunto.

Certificação

●Veja envelope anexo para cópias de autorizações, certificados e condições.

●

xendos 1900/1902 1

1 INTRODUCTION

1.1 Warnings, Cautions and Notes

ThismanualincludesWARNINGS,CAUTIONSandNOTESwhichprovideinformation

relating to the following:

WARNINGS

Hazards which could result in personal injury or death.

CAUTIONS

Hazards which could result in equipment or property damage.

NOTES

Alert the user to pertinent facts and conditions.

1.2 Scope of this manual

This manual covers installation, normal operation and routine maintenance of the

Servomex paramagnetic oxygen analysers, xendos 1900 / 1902 / 1900EUR / 1902EUR

• For latest technical specification refer to the Technical Data Sheet.

• References to the xendos 1900 / 1900EUR also include the xendos 1902 /

1902EUR unless stated otherwise.

• Addresses for technical assistance and spares are given on the rear cover.

• A service manual is available for use by qualified personnel, part number

01800002A.

About this manual

Ref:01900/003A/4

Order as part 01900003A

xendos 1900/1902

KEY TO FIGURES

Figure A Mounting details

1. M6 bolt (4 off) 5mm allen key 7. Purge outlet (if used)

2. LH cover (hinged) 8. Sample outlet

3. Display window 9. Sample inlet

4. RH cover 10. Cable entries (3 off)

5. M8 mounting slot (4 off) 11. M6 earth stud

6. Purge inlet (if used) 12. Breather

(Sample , Purge Inlet / Outlet and Breather Port - ¼”NPT.INT)

Figure B Electrical connections

1. Range contacts 7. Electrical supply terminals

2. Flow Fail alarm contacts 8. Output cable entry

3. Alarm 2 contacts 9. Supply cable entry

4. Alarm 1 contacts 10. Alarm cable entry

5. Linear non isolated Output signals (Cable entries - ¾”NPT, M20 or Pg13.5)

6. Linear isolated Output signals 11. Power Supply Fuse (F1) - F3.15A HBC

Figure C Control panel (hinged)

1. Power On LED (green) 7. Flow Failure LED (red)

2. Set ZERO potentiometer 8. Alarm LED (red)

3. Set SPAN potentiometer 9. Range change push button

4. Set ALARM push button 10. Range label (Slip In)

5.AlarmLEDs(yellow) 11.Samplefilter(Screwsin through control panel)

6. Digital display (0.0 to 100.0% O2) 12. Range LEDs (yellow)

Figure D Link settings on 1800/901 and 1800/911 boards

1. Flow alarm (LK5) 4. Failure Mode (LK6)

2. Range 1 (LK3) 5. Alarm 2 (LK2)

3. Range 2 (LK4) 6. Alarm 1 (LK1)

CE Marking

The xendos 1900 / 1902 / 1900EUR / 1902EUR analysers carry the

CE mark which indicates conformity with the European Community

Directives on CE Marking (93/68/EEC), Electromagnetic Compatibility

(EMC 89/336/EEC) and Low Voltage Directive (LVD 73/23/EEC).

xendos 1900/1902 3

1.3 Unpacking

WARNING

The xendos 1900 weighs approximately 26kg (57lbs) and care must

be taken when handling. It is recommended that it is lifted with the

fingers positioned underneath the rear casting.

• Remove the xendos 1900 from its packing and inspect it for damage.

• If damage has occurred, inform Servomex or its agent immediately.

• Retain all packing and shipping information for future use.

2. INSTALLATION

WARNING

•Refer to Conditions for Safe Use before installation.

•The Terminal chamber on the right hand side of the analyser

should not be opened while energised or within 3 minutes

following removal of power.

•Refer servicing to qualified personnel with knowledge of

hazardous area requirements.

xendos 1900/1902

2.1 Conditions for Safe Use

WARNINGS

Take careful note of the following warning statements

• The installation of the analyser in a hazardous area must

comply with any ‘Special conditions for safe use’ and/or

‘Schedules of Limitations’ as detailed in the safety

certification.

• The xendos 1900 / 1902 analysers are available with the

following hazardous area approvals:-

xendos 1900 / 1902

FM Class I, II & III, Division 1

(USA) Groups A, B, C, D, E, F & G

CSA Class I , Division 1, Groups A, B, C & D

(Canada) Class II, Division 1, Groups E, F & G

Class III, Division 1

Ex ia T4, T.ambient 50/C maximum

TIIS Ex ia d IIC T4

(Japan)

xendos 1900EUR / 1902EUR

CENELEC EEx ia d IIC T4

(Europe) T.ambient 50/C maximum

• The xendos 1900 / 1902 analysers are not suitable for use

with Oxygen enriched atmospheres

• When used in hazardous atmospheres, at least one of the

alarms must be configured as a HIGH alarm and be set at

not more than 22% Oxygen

CENELEC Requirement

• The EEx d compartment of the enclosure is provided with

three 3/4" NPT cable entry holes for the accomodation of

suitable BASEEFA certified flameproof cable entry devices,

with or without the interposition of a suitable BASEEFA

certified flameproof thread adaptor. The cabling methods

used in service must be closed by means of a suitable

BASEEFA certified flameproof stopping plug.

xendos 1900/1902 5

2.2 Location

Select a location which allows convenient access for installation and maintenance and will

minimise ambient temperature fluctuations and vibration.

The analyser must be mounted securelyto a rigid vertical surface capable of supporting the

weight of the analyser, using the four fixing lugs provided or the panel mounting option.

The xendos 1900 mustbe mounted horizontallywith the sampleconnectionsand electrical

entries on the underside.

The sample conditioning system where required should be located below the analyser to

prevent possible carry-over of condensate into the measuring cell and please take careful

note of the ambient temperature requirements.

The xendos 1900 is rated in accordance with IEC 644 for:

'INSTALLATION CATEGORY II' Local level power distribution with over

voltage withstand up to 2500 Volts.

Ambient Operating Conditions:

Operating Temperature: -10/C to +50/C(+14/F to +122/F)

Storage Temperature: -20/C to +55/C (- 4/F to +131/F)

Atmospheric pressure: 79 to 124 kPaa (11 to 18 psia)

(for operating altitudes to 2000m)

2.3 Panel Mounting

A panel mounting option is available, please consult Servomex for further details.

xendos 1900/1902

2.4 Electrical installation

WARNINGS

• The installer must be satisfied that the xendos 1900

installation conforms to the relevant safety requirements,

National Electrical Code and any other local regulations, and

that the installation is safe for any extremes of conditions

which may be experienced in the operating environment of

the analyser.

• This appliance must be connected to a protective earth.

• The electrical installation must include a means of isolating

electrical power by a switch or circuit breaker external to the

analyser and within easy reach of the operator. It must be

marked as the disconnecting device for the equipment.

• It is essential that only suitably trained and competent

personnel are allowed to access hazardous lives parts by

removing or opening the covers of the analyser.

• To comply with the European Community EMC Directives for

industrial environments the interconnecting cables used for

the relay contact outputs and/or the analogue output signals

should be screened or provide equivalent protection.

CAUTION

Connections to TB-4, analogue output signal/s terminals should not

exceed 30 V RMS (42.4 V peak) or 60 V dc to earth when connected to

associated equipment.

1 Electrical terminations are suitable for 20 AWG (0.5 mm2) to 14 AWG

(2.5 mm2) solid conductors or stranded conductors.

2 Gland entry sizes and positions are shown in Figure (A). Two of the three cable

entries are fitted with appropriate blanking plugs.

3 Do not exceed the maximum current output load impedance of 600 Ohms.

4 Electrical power should be supplied at 100 V to 240 Vac ± 10% - 50 / 60 Hz. No

voltage range selection is required. A green power on LED is illuminated when

power is present at the analyser.

xendos 1900/1902 7

5 For compliance with the EMC standards, theexternal earth / ground connection

must always be connected to a local earth / ground. Refer to Figure (A). In

addition, the connections toTB2 andTB4mustalwaysbe madeusing a screened

or shielded cable with the earth termination being made at the cable gland.

Ensure good EMC practices are observed when making connections.

6 All electrical connections are made to the terminal board inside the right hand

side of the analyser. Refer to Figure (B) for details and full specifications are

given in the following table. To gain access refer to Figure (A). Slacken off the

M4 lid locking grub screw with a 2mm allen key, and unscrew the lid with the

aid of a metal barif needed. The lidthreadis pre-greased and no additional non-

setting sealant, etcis required . After electrical connections are complete, ensure

the threads are correctly aligned, screw the lid fully down and re-tighten the lid

locking grub screw.

xendos 1900/1902

Power Connection Terminals

Electrical Power,

100V to 240Vac ± 10%,

50 / 60 Hz, 50VA maximum

Protective Earth

Neutral

Live

TB3-1

TB3-2

TB3-3

Alarm Connection Terminals

Alarm 1

250Vac, 3A

28Vdc, 1A

Closes on Alarm 1 or Power Fail

Opens on Alarm 1 or Power Fail

Common

TB2-1

TB2-2

TB2-3

Alarm 2

250Vac, 3A

28Vdc, 1A

Closes on Alarm 2 or Power Fail

Opens on Alarm 2 or Power Fail

Common

TB2-4

TB2-5

TB2-6

Flow Fail Alarm

250Vac, 3A

28Vdc, 1A

Closes on Flow Fail Alarm or Power Fail

Opens on Flow Fail Alarm or Power Fail

Common

TB2-7

TB2-8

TB2-9

Range Selected Output Connection Terminals

Range 2 selected

250Vac, 3A

28Vdc, 1A

Closes on Range 2 or Power Fail

Opens on Range 2 or Power Fail

Common

TB2-10

TB2-11

TB2-12

Linear Analogue Output Signal Connection Terminals

0 to 1Vdc Oxygen output signal,

(non isolated), output impedance 470 Ohms typical + ve

- ve TB4-1

TB4-2

4 to 20mA Oxygen output signal,

(isolated), maximum load impedance 600 Ohms + ve

- ve TB4-3

TB4-4

The full scale of the above outputs represents the range selected by the push button

Range switch on the front panel.

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