Related Manuals for BEKA BA474ND
Summary of Contents for BEKA BA474ND
- Page 1 Installation & Maintenance Instructions BA474ND Supplied by .com Call us on +44 (0)118 916 9420 | Email info@247able.com...
- Page 2 Installation & Maintenance Instructions BA474ND Type n certified field mounting indicating temperature transmitter with intrinsically safe sensor input Reading Office Aberdeen Office Cutbush Park, Danehill, Lower Earley, Unit 6 Airside Business Park, Kirkhill Industrial Estate, Internet: www.able.co.uk Reading, Berkshire. RG6 4UT. UK.
- Page 3 BA474ND Type n certified field mounting indicating temperature transmitter with intrinsically safe sensor input Issue 7 Issue 7 March 2014...
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Page 4: Table Of Contents
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 The BA474ND is CE marked to show compliance with the European Explosive Atmospheres Directive 94/9/EC and the European EMC Directive 2004/108/EC... -
Page 5: Description
The transmitter is HART Registered and is compliant 1. DESCRIPTION The BA474ND is a field mounting, Type n certified with HART protocol standard revision 7. HART 4/20mA loop powered temperature transmitter with a commissioning information included certified galvanically isolated intrinsically safe sensor... -
Page 6: Type Na Certification
Zener barriers or galvanic isolators. C for the display. The transmitter sensor input, terminals 1, 2, 3 & 4, is b. The BA474ND also has ATEX Ex nL [energy certified galvanically isolated and intrinsically safe Ex limiting] certification, but following de-harmonising [ia]. -
Page 7: Certification Label
ATEX gas and dust certifications plus The operating voltage range between terminals 5 & 6 BEKA associates name and location. IECEx gas and of the BA474ND transmitter at all currents is: dust certification are also included. without backlight 9.0 to 30V... -
Page 8: Use As A Type Na Instrument
9 and shown in Fig 3. No Zener barrier or galvanic isolator 28V, or between 15.5 and 28V if the BA474ND is is required thus reducing complexity and cost. fitted with an optional backlight. -
Page 9: Installation
The BA474ND earth terminal is connected to the carbon loaded GRP enclosure. If this enclosure is not bolted to an earthed post or structure, the earth terminal should be connected to a local earth. -
Page 10: Intrinsically Safe Sensor Input
See EN 60079- 14 section 12 for detailed cable requirements. 6.4 EMC The BA474ND complies with the requirements of the European EMC Directive 2004/108/EC. For specified immunity, all wiring should be in screened twisted pairs with the screens earthed at one point in the safe area. -
Page 11: Configuration
BA474ND will always display sensor the BA474ND test pillars, which are located adjacent temperature. to terminals 5 & 6, or to any other point in the 4/20mA loop. Alternatively, proprietary configuration software Configuration allows: installed on a personal computer may be used. In addition to the configuration functions available via ... - Page 12 For Thermocouple Input – see Fig 6 Transmitter Summary display of function Transmitter Summary display of function ‘FAuLt’ Sensor fault analogue indication Selects 1 of 3 under/over range output currents to indicate that a sensor fault has ‘t.tYPE’ Thermocouple type Selects common types...
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Page 13: Description Of Configuration Menu Functions
Figs 6, 7 & 8. Units Transmitter Display 7.2.1 Transmitter input ‘InPut’ This function enables the BA474ND indicating temperature transmitter to be conditioned to operate with a thermocouple, 3 or 4 wire resistance When C or F are selected the units of measurement thermometer, voltage or 3 or 4 wire resistance input. -
Page 14: Transmitter Input 'Input
existing transmitter input at which the transmitter 7.2.6 Sensor fault analogue indication ‘FAuLt’ The sensor fault analogue indication function appears output current is 4mA. Input is shown in units which in the menu when the transmitter is configured for a depend upon how the transmitter input ‘InPut’... - Page 15 The ‘bAr’ function may be selected from within the If the access code is lost please contact BEKA configuration menu by operating the ▼ or ▲ button. associates. To enter the function press P which will display the ‘b.tYPE’...
- Page 16 7.2.12 Lower input & display ‘in-Lo’ 7.2.13 Higher input & display ‘in-Hi’ This function, which only appears in the menu when This function which only appears in the menu when the transmitter is configured for a voltage or the transmitter is configured for a voltage or resistance input, defines the transmitter lower input resistance input, defines the transmitter higher input voltage or resistance ‘inVAL’...
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Page 20: Display Resolution 'Resn
7.3 Default configuration If the transmitter’s configuration is not specified at the time of ordering, the instrument will be configured as follows but can easily be reconfigured on-site. Function Factory default 3 wire RTD Transmitter input ‘InPut’ Pt100 Sensor type ‘t.tYPE’ ºC Units of digital display ‘dEG’... -
Page 21: Configuration Example
Press E to enter the selection and return switch cover below the digital display – see Fig 7. the transmitter display to the ‘dEG’ The BA474ND can be supplied with factory fitted prompt in the configuration menu. external push buttons if frequent adjustments are required. - Page 22 1209. configuration menu. Press E twice to enter the new access code and return the BA474ND to the display mode via the ‘CodE prompt. Step 7 Configuration of bargraph display See: Fig 7 and section 7.2.8...
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Page 23: Maintenance
9.1 Fault finding during no risk of a flammable atmosphere being commissioning present. If a BA474ND fails to function during commissioning the following procedure should be followed: The BA474ND terminal cover should only be removed when dust and water can not enter the enclosure. -
Page 24: Servicing
If a BA474ND fails after it has been functioning ACCESSORIES correctly the following procedure should be followed: 10.1 Scale and tag marking BA474ND indicating temperature transmitters are fitted with a blank escutcheon around the liquid Symptom Cause Check No display or... -
Page 25: Alarms
When an alarm is activated an annunciator appears 10.4.2 Type nA certification on the left hand side of the BA474ND display. This Each alarm output is a galvanically isolated single shows which alarm has been activated and will flash pole solid state switch that has been certified as a Ex if the alarm is delayed or silenced. -
Page 26: Alarm Configuration
'EnbL' Alarm enable Enables or disables the alarm function When a BA474ND indicating temperature transmitter without changing the alarm parameters. is supplied with optional alarms the conditioning See section 10.4.5 menu is extended as shown in Fig 12. -
Page 28: Hysteresis 'Hstr
‘SP1’ or ‘SP2’. e.g. A BA474ND transmitter with a high alarm set at This can be achieved by repeatedly operating the P 90.0 and hysteresis of 10.0 will perform as follows:... - Page 29 10.4.12 Access Setpoint: ACSP This function controls a separate menu that provides direct access to the alarm setpoints when the BA474ND transmitter is in the operational mode. The function enables an operator to adjust the alarm setpoints without having access to the configuration and alarm menus.
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Page 30: Adjusting Alarm Setpoints From
10.4.13 Adjusting alarm setpoints from the operational mode Access to the alarm setpoints from the transmitter operational mode is obtained by operating the P and ▲ push buttons simultaneously as shown in Fig 13. If the setpoints are not protected by a security code the alarm setpoint prompt 'SP1' will be displayed. - Page 31 BA474ND may also be installed in air is likely to occur occasionally in combustible dust atmospheres. The transmitter has normal operation.
- Page 32 The BA474ND terminal cover should only be removed when dust and water can not enter the enclosure. Before replacing the terminal cover ensure that the sealing gasket is undamaged and that it is free from foreign bodies.
- Page 33 IECEx certification scheme and to view the BEKA associate certificates, please visit www.iecex.com A2.1 IECEx Certificate of Conformity The BA474ND Indicating Temperature Transmitter has been issued with an IECEx Certificate of Conformity number IECEx ITS 09.0007 that specifies...
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