39
Page 1: ...Supplied by Call us on 44 0 118 916 9420 Email info 247able com com Installation Maintenance Instructions BA474D...
Page 2: ...Danehill Lower Earley Reading Berkshire RG6 4UT UK Tel 44 0 118 9311188 Email info able co uk Aberdeen Office Unit 6 Airside Business Park Kirkhill Industrial Estate Dyce Aberdeen AB21 0GT UK Tel 44 0...
Page 3: ...Issue 8 4 th March 2014 BA474D Intrinsically safe field mounting indicating temperature transmitter Issue 8...
Page 4: ...play bAr 7 2 9 Access code CodE 7 2 10 Resistance thermometer type r tYPE 7 2 11 Decimal point position dP 7 2 12 Lower input display in Lo 7 2 13 Higher input display in Hi 7 3 Default configuration...
Page 5: ...ned in Appendices to this manual The transmitter is HART Registered and is compliant with HART protocol standard revision 7 HART commissioning information is included in the BA47X 67X Indicating Tempe...
Page 6: ...endix 1 which describes ATEX installations complying with EN 61241 14 Dust certification is an option that must be specified when the transmitter is ordered 4 2 Zones gas groups and T rating The BA474...
Page 7: ...6 The BA474D Indicating Temperature Transmitter is loop powered via these terminals which have the following input safety parameters Ui 28V Ii 200mA Pi 0 85W When installed in a hazardous area the tr...
Page 8: ...perate multiple loops the negative side of the supply is normally earthed To also allow the negative side of the 4 20mA load to be earthed it is necessary to have a Zener barrier in each of the two wi...
Page 9: ...e it must be transparent to HART signals 5 2 Use as associated apparatus WARNING When used as associated apparatus without Zener barriers or galvanic isolators the BA474D transmitter must be installed...
Page 10: ...zardous area the same Zener barriers or galvanic isolators required for transmitter operation are required When installed in a safe area as associated apparatus the supply terminals 5 6 may be directl...
Page 11: ...n the three conduit cable entries The BA474D liquid crystal display has maximum contrast when viewed from directly ahead and slightly below the centre line of the instrument Without a backlight there...
Page 12: ...eparates the intrinsically safe and non intrinsically safe terminals within the enclosure Conductors of intrinsically safe circuits and non intrinsically safe circuits should not be contained in the s...
Page 13: ...protected by an access code the first parameter InPut will be displayed If the transmitter is protected by an access code CodE will be displayed first Pressing P will allow the four digit security co...
Page 14: ...or high display resolution See section 7 2 4 Transmitter Summary display of function FAuLt Sensor fault analogue indication Selects 1 of 3 under over range output currents to indicate that a sensor fa...
Page 15: ...rmocouple has been selected press E to enter the selection and return to the t tYPE prompt in the configuration menu 7 2 3 Units of digital display dEG The transmitter digital display may be in one of...
Page 16: ...ss P which will display the ZEro function in the sub menu pressing P again will reveal the existing transmitter input at which the transmitter output current is 4mA Input is shown in units which depen...
Page 17: ...P button again will return control to one of the digits 7 2 9 Access code for configuration menu CodE Access to the configuration menu may be protected by a four digit security code which must be ent...
Page 18: ...oned using either the or button Pressing the P button again will return control to one of the digits 7 2 13 Higher input display in Hi This function which only appears in the menu when the transmitter...
Page 19: ...17...
Page 20: ...18...
Page 21: ...19...
Page 22: ...on site Function Factory default Transmitter input InPut 3 wire RTD Sensor type t tYPE Pt100 Units of digital display dEG C Display resolution rESn Low Sensor fault FAuLt Off 4 20mA output CAL 0 0 to...
Page 23: ...configuration menu and press P to enter the function which enables the type of resistance thermometer to be selected The transmitter will display the existing type of resistance thermometer using the...
Page 24: ...ArLo sub function may be selected Press P to enter the bArLo sub function which will reveal the existing digital display at which the bargraph starts Set the display to 0100 0 using the or button to a...
Page 25: ...een activated Sensor and input wiring 9 2 Fault finding after commissioning ENSURE PLANT SAFETY BEFORE STARTING MAINTENANCE Use as an intrinsically safe transmitter Live maintenance is permitted on in...
Page 26: ...a scale for the horizontal bargraph Alternatively information may be added on site via an embossed strip dry transfer or a permanent marker To gain access to the display escutcheon remove the terminal...
Page 27: ...r than 180k Note Because of the series protection diodes some test meters may not detect a closed alarm output Fig 12 Equivalent circuit of each alarm output WARNING Connection of alarm output to a su...
Page 28: ...ions Display Description of function ALr1 Alarm 1 ALr2 Alarm 2 The two functions each contain seven identical sub functions one set for configuration alarm 1 and the other for configuration alarm 2 Se...
Page 29: ...27...
Page 30: ...o reveal the current setting The function may be changed by pressing the or button pressing the E button will enter the setting and return the display to the Hi Lo prompt in the alarm menu 10 4 8 Alar...
Page 31: ...xists the alarm will be reactivated 10 4 12 Access Setpoint ACSP This function controls a separate menu that provides direct access to the alarm setpoints when the BA474D transmitter is in the operati...
Page 32: ...to be displayed Pressing the or button will toggle between the two alarm setpoint prompts SP1 and SP2 If an incorrect security code is entered or a button is not pressed within ten seconds the transm...
Page 33: ...tmosphere in the form of a cloud of combustible dust in air is likely to occur occasionally in normal operation Zone 22 explosive atmosphere in the form of a cloud of combustible dust in air is not li...
Page 34: ...o the ATEX parameters and the systems shown in section 5 of this manual may therefore also be used for FM and cFM installations The BA474D Indicating Temperature Transmitter also has FM and cFM Associ...
Page 35: ...33...
Page 36: ...34...
Page 37: ...35...
Page 38: ...36...
Page 39: ...37...
Page 40: ...38...
Page 41: ...39...
Page 42: ...kely to occur in normal operation Zone 2 explosive gas air mixture not likely to occur and if it does will only exist for a short time Be used with gases in groups Group A propane Group B ethylene Gro...
Page 43: ...ystem the BA474D may be installed in Zone 20 explosive atmosphere in the form of a cloud of combustible dust in air is continuously present or for long periods or frequently Zone 21 explosive atmosphe...
