Surveyor 4B_rev C.2_EN
Contents
1. block item 3 Fig 5 e Relay 2 REL 2 which is negative safety mode corresponds to the second gas threshold only This relay is also equipped with SPDT contacts available on the SV 4B terminal block item 4 Fig 5 e These both relays could be configured in positive and negative security programmation by welding slots on the printed circuit board made only by OLDHAM or a skilled personal FIGURE 5 Item 3 Item 4 NB The relay contacts are dry contacts corresponding to the appliance without power supply Caution The high power solenoid valves cannot be directly remote controlled A power relay is required gt The maximum current through the relay contacts will be 2 A and the maximum voltage will be 240 V or 60 V 10 3 5 Examples of installation Example of installation set up of a SV 4B with TWO OLC 10 TWIN detectors C1 C2 C3 HQ GOO Oj Y DOC DO Telephone dialer Fuse or circuit breakgr Life L 0 IM Closed solenoid valve status display lignt OS m Fuse To a phone network line Detector OLC twin 2 Detector OLC twinl Breaking capacity of rating relays switch contact 120VA ou 30W Important The relay s contacts are shown on the SV 4B label unit switch off The AL1 DEF relays are normally energized and the AL2 relay is unenergized 11 Example of installation set up of a SV 4B with a single de2. manufacture or sale of OLDHAM equipment or for any other reasons without prior consent from OLDHAM WARNINGS This document is not contractually binding In the interests of its customers OLDHAM reserves to modify the technical specifications of its equipment without notice in order to improve its performance READ THIS MANUAL CAREFULLY BEFORE FIRST USE OF THE EQUIPMENT this manual must be read by any person who is or will be responsible for using maintaining or repairing this equipment This equipment will only provide the announced performance levels if it is used maintained and repaired according to OLDHAM directives by OLDHAM personnel or by personnel approved by OLDHAM GUARANTEE 2 years guarantee in normal conditions of use on parts and technical labour return in our workshops excluding consumables sensors filters etc Warnings This manual must be read carefully before installing and starting up and in particular care must be taken to observe the points concerning the safety of the equipment for intermediate or end users Installation must be performed and electrical connections made by qualified personnel in accordance with the manufacturer s instructions and with the standards specified by the relevant authorities Failure to comply with instructions can have serious consequences for the safety of personnel An absolutely rigorous approach is required especially as concerns electricity and fitting connec
3. of calibration is best determined by company policy or local regulatory agencies If an instrument fails to operate properly during any functional bump test a full instrument calibration should be performed successfully prior to use These recommendations are based on safe work procedures industry best practises and regulatory standards to ensure worker safety OLDHAM is not responsible for setting safety practices and policies For new installations it may be prudent to carry out bump tests frequently at first perhaps weekly increasing the time intervals to perhaps monthly or more as confidence grows with experience in the installation concerned on the basis of the maintenance record 4 4 1 Adjusting the gas alarm thresholds Using a reference gas kit gas cylinder pressure regulator etc inject the reference gas with a content level higher than the first threshold desired For example threshold 1 will be 20 LEL so a minimum of 25 LEL should be injected Adjust the alarm potentiometer item 1 Fig 7 to trigger the first threshold AL1 the red LED AL1 flashes for 7 seconds and then remains on in steady mode trip the corresponding alarm relay item 5 item 1 item 2 FIGURE 7 If you stop at this point alarm 2 will be set to twice the level of alarm 1 If you continue until alarm 2 is triggered alarm 1 will be set to half the level of alarm 2 If you wish to lock the alarm relays inhibiti
4. SV 4B is equipped with a fault alarm visual alarm item 2 Fig 6 audio alarm and relay 1 which is activated in the following cases e One or more wires of the telemetry line interrupted e One or more wires of the telemetry line short circuited or with excessive power consumption NB The ALARM LEDs may also be activated depending on the circumstances of the interruption or the short circuit 4 4 Adjustments Caution The operations and adjustments described in this chapter must be performed by authorized personnel only as they can affect the appliance s reliability in detection Gas detection instruments are potential life saving devices Recognizing this fact OLDHAM Corporation recommends that a functional bump test be performed on every fixed gas monitoring instruments as part of a regular maintenance program A functional test is defined as a brief exposure of the detector to a concentration of gas es in excess of the lowest alarm set point for each sensor for the purpose of verifying sensor and alarm operation and is not intended to be a measure of the accuracy of the instrument OLDHAM further recommends that a full instrument calibration be performed using a certified concentration s of calibration gas es quarterly every 3 months Calibrations may be necessary more or less frequently based for example on application field conditions exposure to gas sensor technology and environmental conditions The frequency
5. User Manual Surveyor 4B as OLDHAM Version C 2 The Fixed Gas Detection Experts GAS DETECTION We are delighted that you have chosen an OLDHAM instrument and would like to thank you for your choice We have taken all the necessary measures to ensure that your instrument provides total satisfaction in the future Now it is important to read this document carefully EXTENT OF RESPONSIBILITY OLDHAM declines its responsibility towards any person for material damage physical injury or death resulting wholly or partly from inappropriate use installation or storage of its equipment resulting from failure to observe instructions and warnings and or standards and regulations in force OLDHAM neither supports nor authorises any company physical or moral person to assume responsibility on behalf of OLDHAM even if it is involved in the sale of OLDHAM products OLDHAM cannot be held responsible for direct or indirect damage or be required to pay direct or indirect compensation resulting from the sale or use of any of its products IF THESE PRODUCTS HAVE NOT BEEN DEFINED AND CHOSEN BY OLDHAM FOR THEIR SPECIFIC USE CLAUSES CONCERNING PROPERTY Drawings plans specifications and information included in this document contain confidential information that is the property of OLDHAM None of this information may be reproduced copied divulged or translated by physical electronic or any other means nor used as the basis for the
6. conditions Ambient temperature 10 C to 45 C Relative humidity 5 to 95 non condensed Noise level Not significant VI DISPOSAL Concerning the conservation of the protection and the improvement of the quality of the environment as well as for the protection of the health of the persons and the careful and rational use of natural resources SV 4B has to be the object of a selective collection for the electronic equipments and cannot be scrapped with the normal domestic waste The user thus has the obligation to separate the SV 4B of the other waste so as to guarantee that it is recycled in a sure way at the environmental level For more details of the existing sites of collection contact the local administration or the distributor of this product 21 VII EC DECLARATION OF CONFORMITY A OL DHA mMm DECLARATION DE CONFORMITE CONSTRUCTEUR Manufacturer Declaration of Conformity CE La Soci t Oldham S A S ZI Est 62000 Arras France atteste que la The Company Oldham S A S ZI Est 62000 Arras France declares that the Centrale de d tection de gaz Gas Controller e Surveyor 4B est conforme aux exigences des Directives Europ ennes suivantes complies with the requirements of the following European Directives D Directive Europ enne CEM_2004 108 CE du 15 12 04 Compatibilit Electromagn tique The European Directive EMC 2004 108 CEE of 15 12 04 ELECTROMAGNETIC COMPATIBILITY Normes har
7. e with CEI 127 with time delay low breaking capacity and a voltage of 250 V Fuse 5x20 T125 mA 250 V OLDHAM reference 6154701 6761434 15910648 J1 f Le FIGURE 9 20 V TECHNICAL SPECIFICATIONS Manufacturer OLDHAM Type SURVEYOR 4B Function Control station for explosive gas detectors Capacity 1 channel or 2 detectors Measurement Measurement Continuous Display unit None Visual alarms Failure yellow Gas 1st threshold red Gas 2nd threshold red Audio alarm Integrated Alarm Acknowledgement Manual or automatic Electric power supplies AC DC 230 VAC 207 to 242 V programmed in factory 12 VDC 11 5 to 14 V Power consumption 5 VA or 4 W detector connected Electrical protection Fuse Relays Relay 1 Common to gas and fault Relay 2 Gas Contact SPDT relay 1 positive safety SPDT relay 2 Max breaking capacity 60 VA or 28 W resistive Maximum voltage 240 VAC or 60 VDC Maximum current 1A Measuring line Cable Maximum line length Maximum loop resistance 3 conductors 40 m with conductor 1 5 mm 1 4 ohms Mounting On symmetrical DIN rail Miscellaneous Technology SMC surface mounted component Mains visual indicator Green LED Housing NORYL Warranty 1 year Dimensions 58 x 105 x 90 mm Weight 0 360 kg Cable inlets outlets Screw type terminal block Ingress Protection IP 30 Operating
8. monis es appliqu es EN 50270 06 for type 1 amp 2 CEM Appareils de d tection de gaz Harmonised applied Standards EMC Apparatus for the detection of gases ID Directive Europ enne DBT_2006 95 CE du 27 12 06 Basse Tension The European Directive LVD 2006 95 CEE of 27 12 2006 Concerning Low Voltage Normes harmonis es appliqu es EN 61010 1 10 Regles de s curit pour appareils Harmonised applied Standard lectriques de mesurage Safety requirements for electrical equipment for measurement Arras le 19 10 2013 Michel Spellemaeker Oldham S A S Global Director of Product Management ZL EST B P 417 62027 ARRAS Cedex FRANCE Tel 33 0 3 21 60 80 80 www oldhamgas com CE SV 4B ind b 22 23 tl OLDHAM The Fixed Gas Detection Experts EUROPEAN PLANT AND OFFICES Z I Est rue Orfila CS 20417 62027 Arras Cedex FRANCE T l 33 0 3 21 60 80 80 Fax 33 0 3 21 60 80 00 Website http www oldhamgas com AMERICAS ASIA PACIFIC EUROPE Tel 1 713 559 9280 Tel 86 21 3127 6373 Tel 33 321 608 080 Fax 1 281 292 2860 Fax 86 21 3127 6365 Fax 33 321 608 000 americas oldhamgas com sales oldhamgas com info oldhamgas com
9. ng the relays during these alarm threshold adjustments set the maintenance switch to the high position item 2 Fig 7 ti Maintenance Normal Caution When the adjustments have been made do not forget to place the switch back in its normal position Terminal posts item 3 Fig 7 are used to connect up a voltmeter for the reading of a signal in mV corresponding to the content level of the injected gas Then using a rule of three it is possible to calculate and adjust another signal in mV for an alarm threshold potentiometer item 1 Fig 7 corresponding to a different gas content level For example when you inject 1 methane you read 1 000 mV for instance If you set the alarm potentiometer to read 1 500 mV the alarm is triggered at 1 5 methane Signal ENE on 1000mV Or Threshold 1221200 _ 1 o 1000mV 4 4 2 Acknowledgement of gas alarms A switch item 4 Fig 7 is used to acknowledge gas alarms in manual mode or automatic mode Up Automatic ack Manual ack Remark As long as there is a high enough concentration of gas to trigger an alarm it is impossible to clear that alarm manually with the Ack button Manual mode When a gas alarm is triggered it must be cleared manually even if the content level has fallen to zero or to below the threshold This is done by pressing the key item 5 Fig 7 gt Automatic mode When a gas alarm is triggered it is cleared automaticall
10. nse curve must be of type D The mains power supply must be wired on the two points marked N Neutral and P Phase on the Surveyor 4B terminal block see Fig 2 item 1 Power consumption 5 VA max detector connected 3 2 DC power supply 12 volt power supply The 12 volt power supply can be connected to the points marked O and 12 V on the Surveyor 4B terminal block see Fig 2 item 2 The cable must have a minimum cross section of 1 5 mm Power consumption 4 W max detector connected Item 1 Item 2 FIGURE 2 From 207 to 242 V AC 2 From 11 5 to 14 V DC 3 3 Explosimetric detectors e Only explosimetric detectors of the bridge type can be connected to the SV 4B Surveyor 4B and the detector are connected together by a shielded cable with three active conductors The shielded cable is to be connected to the earth at one end only e Terminals C1 C2 and C3 of Surveyor 4B and the detector are to be connected in opposite mode see Fig 3 Detector terminal FIGURE 3 e The maximum loop resistance is 1 4 ohms For example the maximum distance between Surveyor 4B and the detector will be 40 m with conductors with a cross section of 1 5 mm 3 4 External components Surveyor 4B is equipped with the following two relays e Relay 1 REL 1 which is in mode corresponds to the first gas alarm threshold and to the FAULT alarm This relay is equipped with SPDT contacts available on the SV 4B terminal
11. tector Telephone dialer LIFE use Or circuit breaker To a phone netwok line NEUTRAL x losed solenoid valve 0 tatus display lignt 7 Fuse Gas valve closed 1 2 3 Detector Breaking capacity of rating relays switch contact 120VA ou 30W Important The relay s contacts are shown on the SV 4B label unit switch off The AL1 DEF relays are normally energized and the AL2 relay is unenergized IV OPERATING INSTRUCTIONS 4 1 Switching on It is assumed that all the necessary connections have been made and that the whole installation complies with the standards currently in force As soon as the SV 4B is supplied with power it is ready to use and the GREEN light emitting diode lights up item 1 Fig 6 Relay 1 is operated positive safety position 4 2 Switching off The SV 4B is switched off by cutting off the power supply on an electrical equipment cabinet 4 3 Alarms 4 3 1 GAS alarm The SV 4B has two adjustable GAS alarm thresholds but the second threshold AL 2 must be twice the first AL 1 Therefore the red light emitting diodes AL1 and AL2 item 3 Fig 6 come on as soon as the alarm thresholds are exceeded time delay of 7 seconds LED flashing The audio alarm buzzer is activated and the corresponding relays are tripped Item 1 Item 2 Item 3 FIGURE 6 13 4 3 2 FAULT alarms The
12. tions and connection to the power network Any modification of the equipment or the use of parts not specified as original manufacturer s parts could lead to the cancellation of any form of warranty The data logger is intended to be used for one or more applications specified in the technical characteristics The values indicated must not be exceeded in any circumstances This is not a contractually binding document In the interest of its customers OLDHAM reserves the right to make any changes without notice to the technical characteristics of its equipment in order to improve performance levels Warning signs D Protective earth terminal Caution risk of electric shocks Caution See accompanying documents Contents I DESCRIPTION II MOUNTING OF THE SURVEYOR 4B II CONNECTIONS 3 1 Alternative power supply 3 2 DC power supply 3 3 Explosimetric detectors 3 4 External components 3 5 Examples of installation IV OPERATING INSTRUCTIONS 4 1 Switching on 4 2 Switching off 4 3 Alarms 4 3 1 GAS alarm 4 3 2 FAULT alarms 4 4 Adjustments 4 4 1 Adjusting the gas alarm thresholds 4 4 2 Acknowledgement of gas alarms 4 4 3 Adjusting the ZERO 4 4 4 Checking the sensitivity 4 5 Replacing the fuse V TECHNICAL SPECIFICATIONS VI DISPOSAL VII EC DECLARATION OF CONFORMITY 10 10 11 12 13 13 21 22 I DESCRIPTION Surveyor 4B is equipped with a small NORMAL box 58 x 105
13. x 90 mm It can be snap fastened onto a standard symmetrical DIN rail and is easily integrated in an electric equipment cabinet The components used in operation are located on the front of the appliance adjustments and tests on the top item 1 indicator lights on the FRONT face item 2 connections at the bottom item 3 Item 1 Item 2 Item 3 FIGURE 1 Il MOUNTING OF THE SURVEYOR 4B The surveyor 4B appliance fitted on its symmetrical DIN rail can be installed in a box in any electrical equipment cabinet and has no special installation requirements The Surveyor 4B can be installed in safe area only It should preferably be located in a monitored location such as a guardhouse control room or instrumentation room IM CONNECTIONS Electrical connections must be made by a specialist and must comply with the regulations in force They must also be in conformance with standard NF C 15 100 The nature of the current and line voltage must be checked The line voltage must match the voltage specified on the plate fitted on the Surveyor 4B The voltage is configured in the factory The wires to be connected to the Surveyor 4B must have a minimum cross section of 1 5 mm The Surveyor 4B appliance can be supplied with either 230 VAC L or 12 VCC 3 1 Alternative power supply 230 volt AC power supply The Surveyor 4B must be protected on the upstream side by a two pole earth leakage circuit breaker 1A The respo
14. y as soon as the content level falls below the alarm threshold 16 4 4 3 Adjusting the ZERO Necessary when a cell is replaced Atleast twice a year Connect a voltmeter to the two terminal posts provided for that purpose MF and MES as shown below Rep 3 Cw T Rep 1 Rep 2 FIGURE 8 Be sure to be in pure atmosphere without gas If not inject air Adjust the ZERO 0 mV with the potentiometer item 1 Figure8 4 4 4 Checking the sensitivity Necessary when a cell is replaced At least twice a year Prepare the calibration kit and secure the gas input pipe to the detector Adjust the flow rate of the reference gas 1 to 60 1 h before injecting Allow to stabilize for at least 10 seconds Check that the alarm or alarms are triggered as applicable 6 and carry out the following procedure The value of the reference gas must be higher than at least the first alarm threshold 17 Inject reference gas with content gt threshold AL1 Alarm 1 triggered Cell sensitivity is satisfactory Cell sensitivity is inadequate Can AL 1 be triggered by adjusting the alarm potentiometer item 2 Fig 8 Cell sensitivity is inadequate replace the cell and repeat calibration O S Cell sensitivity is now satisfactory 4 5 Replacing the fuse The fuse Fig 9 item 1 must be replaced by qualified personnel only The fuse is and must be in complianc
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