Operator Manual Part Number: Revision: Language: © Servomex Group Limited. 2020

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IMPORTANT INFORMATION Con�nued safe and reliable opera�on of this equipment is condi�onal on all installa�on, opera�on and maintenance procedures being carried out in accordance with the appropriate manuals, by personnel having appropriate qualifica�ons, experience and training. Failure to observe the requirements of the manual may result in the user being held responsible for the consequences and may invalidate any warranty. Servomex will accept no liability for unauthorised modifications to Servomex supplied equipment. Servomex has paid particular attention to Health and Safety throughout this...

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© Servomex Group Limited. 2020

© Servomex Group Limited. 2020

About this manual Safety information The following icons are used throughout this manual to iden�fy any poten�al hazards that could cause serious injury to people or damage to the equipment: This symbol warns of specific hazards which, if not taken into account, may result in personal injury or death. This symbol warns of specific hazards from laser radia�on. This symbol warns of specific hazards from high temperatures. Other information provided by the manual This symbol highlights where you must take special care to ensure the Analyser or other equipment or property is not damaged. Note: Notes...

The analyser is designed to provide stable, accurate and specific gas concentra�on measurements, and is suitable for use in hazardous areas. The analyser uses a paramagne�c transducer to determine the oxygen (O2) content of gas samples in concentra�ons of up to 21% in any background mixture, including con�nuously flammable backgrounds. The analyser is simple to operate, with an intui�ve user interface. Gas sample measurements are shown on the analyser display, and are also provided as milliamp (mA) outputs and via Modbus digital communica�on (RS485 and Ethernet). The analyser also provides fault,...

protec�on to the measurement transducer. They also form part of the analysers elevated sample pressure (124kPa (18psia)) hazardous area cer�fica�on and the analyser should not be vented to pressures over 110 kPa (16psia) without these fited. They are external to the analyser and simple to change in the case of contamina�on. When sample compartment hea�ng is fited these sintered elements are also heated to 70°C, giving further robustness to moisture droplets or aerosols carried over from the sample system. During normal opera�on, calibra�on and installa�on it is not required to access this side of...

Figure 1 - Front of the analyser Key Hinged cover Cer�fica�on label Locking screw * Iden�fica�on/ra�ng label † Threaded cover * The locking screw may be in a different orienta�on with respect to the cover (7), depending on how the cover has been fited. † On the side of the analyser. Contains Servomex contact details, date of manufacture, analyser model and serial number, analyser inlet flow rate, mains voltage ra�ng and op�onal Tag Number.

Figure 2 - Base of the Analyser Key Cable entry holes (2 off) 1/2 inch NPT Sample gas inlet 1/4 inch NPT Cable entry holes (2 off) 3/4 inch NPT Sample gas outlet 1/4 inch NPT Func�onal Earth (ground) terminal Corrosive purge inlet 1/4 inch NPT, or blank © Servomex Group Limited. 2020

Figure 3 - Base of analyser, Sample Hea�ng Key Cable entry holes (2 off) 1/2 inch NPT Sample gas outlet 1/4 inch NPT Cable entry holes (2 off) 3/4 inch NPT Sample inlet/outlet insula�on and cover plate Func�onal Earth (ground) terminal Cover plate fixing screw, 4 x M4 Sample gas inlet 1/4 inch NPT Corrosive purge inlet 1/4 inch NPT, or blank © Servomex Group Limite

Figure 4 - Inside Power / Signal Compartment Key Earth (ground) connec�on Relays P112, relay func�ons: mA range indica�on, Service in Progress and Maintenance Required Relays P102, relay func�ons: Concentra�on Alarms 1& 2 and Fault Modbus 485 (P109) or Ethernet (U152) connec�on © Servomex Group Limited. 2020

Figure 5 - Inside Power / Signal Compartment - Auto valida�on / Remote Calibra�on Key Relay P803, relay func�ons: Sample gas, low calibra�on gas and high calibra�on gas Switch inputs P804, auto valida�on, autocalibra�on, calibrate low, calibrate high and ini�ate service in progress

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SPECIFICATION You must install and use the analyser in accordance with the requirements of this and subsequent sec�ons of the manual. If you do not, people may be injured, the protec�on facili�es incorporated into the design of the analyser may not operate as intended, sample gas measurements may not be accurate, or the analyser may be damaged. Analyser Dimensions 235 x 448 x 227 mm (height x width x depth) Standard moun�ng >26 kg (See Sec�on 5.1 for Installa�on advice) Environmental limits The installa�on of the analyser in a hazardous area must comply with any ‘Special condi�ons for safe use’...

Ambient temperature range Opera�on Opera�ng ambient pressure range Opera�ng ambient humidity range Opera�ng al�tude range Ingress protec�on * Below sea level. † Above sea level. Analyser is suitable for outdoor use within the limits stated above. Electrical data Electrical supply • Maximum power consump�on Internal fuse ra�ng • T 1.0 A H 250 V Electrical supply conductor size Flexible conductors Solid conductors Interface signal relay ra�ngs ‡ Milliamp output • Maximum load resistance Minimum isola�on voltage Output range • Normal sample measurement

Fault condi�on Under range # Switched Inputs • Input Voltage and Current $ 0.5 seconds (Momentary Inputs) Signal/milliamp/RS485 output terminals suitable for: • Flexible conductors Solid conductors * The analyser is supplied configured for opera�on with one of these voltage ranges. You must specify the voltage range when you order the analyser. ‡ The relay output signals are volt-free signals. User selectable. Only available when the 4 to 20 mA output range is selected. Switch contacts should be suitable for low current switching. ~ For Ini�ate and Stop of Auto valida�on, Autocalibra�on, Calibrate...