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St Neots, U.K. – Cert. No. Q5907 environmental applications. Stonehouse, U.K. – Cert. No. FM 21106 As a part of ABB, a world leader in process automation technology, we offer customers application expertise, service and support worldwide. EN 29001 (ISO 9001) We are committed to teamwork, high quality manufacturing, advanced technology and unrivalled service and support.
System Hardware – Fig. 1.2 on the front panel. Programmed functions are protected from unauthorized alteration by a five-digit security code. The 4680 and 4685 transmitters are part of the EXFG Oxygen Principle of Operation– Fig. 1.2 Analyzer System which measures oxygen content and temperature within a gas flue.
3281ft (1000m) max. A – Maximum Distance to Interface Unit Fig. 2.1 Checking the Code Number (Model 4680) 2.1.2 Panel-mounted Instruments – Fig. 2.2 55°C Max. –20°C Min.
• The M20 glands ready-fitted to wall-mounted instruments accept cable of between 4 and 7mm diameter. • A spare set of grommets is supplied for cable sizes between 8 and 12mm diameter. Signal Cable 4685 Mains Power Cable 4680 Gland Specification Gland Specification Cable Specifications M20 BASEEFA certified Signal cable 16/0.2, 4-core copper, overall screened,...
4 ELECTRICAL CONNECTIONS… 4.1.2 Relay Contact Protection and Interference Suppression – Fig. 4.1 If the relays are used to switch loads on and off, the relay contacts can become eroded due to arcing. Arcing also generates radio frequency interference (RFI) which can result in instrument malfunctions and incorrect readings. To minimize the effects of RFI, arc suppression components are required;...
…4 ELECTRICAL CONNECTIONS Selecting the Mains Voltage 4.4.1 Wall/Pipe-mounted Instruments – Fig. 4.6 Remove cap and screw Remove front panel Information. Use a small, flat-bladed screwdriver to remove the screw cap from the case. Slacken captive screws and remove protection cover 110V A.C.
5 CONTROLS AND DISPLAYS 5 CONTROLS AND DISPLAYS 5.1 Displays – Fig. 5.1 5.2 Switch Familiarization The display comprises a 5-digit, 7-segment digital upper display line and a 16-character dot-matrix lower display line. Advance to The upper display line shows actual values of oxygen, alarm next page set points or programmable parameters.
6 OPERATION 6.1 Instrument Start-up Ensure all electrical connections have been made correctly and switch on. 6.2 Operating Page The Operating Page is a general use page in which parameters are viewed only and cannot be altered. To alter or program a parameter refer to the programming pages in Section 7.
…7 PROGRAMMING 7.2 Set Up Outputs Page Set Up Outputs ----- Page header SET UP OUTPUTS Alarm Action Set the required alarm action from the following table. ----- LED Action LED Action LED Action LED Action Alarm Action Alarm for input for input for input for input...
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PRODUCTS & CUSTOMER SUPPORT A Comprehensive Instrumentation Range Customer Support Analytical Instrumentation ABB Kent-Taylor provides a comprehensive after sales service via a Worldwide Service Organization. Contact one of • Transmitters the following offices for details on your nearest Service and...