Related Manuals for BEKA BA474D
Summary of Contents for BEKA BA474D
- Page 1 Installation & Maintenance Instructions BA474D Supplied by .com Call us on +44 (0)118 916 9420 | Email info@247able.com...
- Page 2 Installation & Maintenance Instructions BA474D Intrinsically safe field mounting indicating temperature transmitter 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. Dyce, Aberdeen. AB21 0GT. UK.
- Page 3 BA474D Intrinsically safe field mounting indicating temperature transmitter Issue 8 Issue 8 March 2014...
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Page 4: Table Of Contents
7.2.12 Lower input & display ‘in-Lo’ 7.2.13 Higher input & display ‘in-Hi’ 7.3 Default configuration Appendix 3 IECEx certification The BA474D 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
4/20mA output proportional to temperature, plus a 3. OPERATION digital temperature display. Voltage and resistance Fig 1 shows a simplified diagram of the BA474D inputs may be scaled allowing the BA474D to display Indicating Temperature Transmitter. The input,... -
Page 6: Intrinsic Safety Certification
At an ambient temperature between –40 and +70ºC. a sensor in Zone 0, 1 or 2 without the need for Zener barriers or galvanic isolators. This allows the BA474D to be installed in all Zones 4.1 ATEX certificate and to be used with most common industrial gases. -
Page 7: Certification Label Information
4.6 4/20mA output - terminals 5 & 6 The certification information label is fitted in a recess The BA474D Indicating Temperature Transmitter is on the top outer surface of the enclosure. It shows loop powered via these terminals which have the... -
Page 8: With Zener Barriers
Fig 2 illustrates the simplest and least expensive resistance is less than the minimum supply voltage. configuration in which a BA474D is powered from an isolated (floating) power supply. Only one barrier is For the transmitter loop shown in Fig.3 required, as the other wire is earthed at the barrier busbar. -
Page 9: With Galvanic Isolators
A galvanic isolator can supply a higher voltage than a Zener barrier to a loop powered transmitter and is WARNING able to power a BA474D transmitter fitted with an When used as associated apparatus optional display backlight which has a minimum without Zener barriers or galvanic operating voltage of 15.5V. -
Page 10: Use As A Temperature Indicator
5 & 6 may be directly connect to a dc supply with an output voltage between 9 and 28V, or between 15.5 and 28V if the BA474D is fitted with an optional backlight. No load resistor is required. -
Page 11: Installation
The BA474D 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 12: Associated Apparatus Installation
6.4 EMC The BA474D 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. Fig 7 Dimensions and terminal connections 6.3 Associated apparatus installations... -
Page 13: Configuration
Configuration and calibration via HART may be performed using a portable configurator connected Thermocouple and RTD inputs to the BA474D test pillars located by terminals 5 & The BA474D will always display sensor temperature. 6, or by connecting to the galvanic isolator powering transmitter. - Page 14 For Thermocouple Input – see Fig 8 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 15: Description Of Configuration Menu Functions
Units Transmitter Display 7.2.1 Transmitter input ‘InPut’ This function enables BA474D 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 16: Transmitter Input 'Input
in the sub-menu, pressing P again will reveal the 7.2.6 Sensor fault analogue indication ‘FAuLt’ The sensor fault analogue indication function appears existing transmitter input at which the transmitter in the menu when the transmitter is configured for a output current is 4mA. Input is shown in units which resistance thermometer or a thermocouple input. - Page 17 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 18 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 22: Units Of Digital Display 'Deg
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 23: Configuration Example
– see Fig 7. which represents degrees Celsius. The BA474D can be supplied with factory fitted Press E to enter the selection and return external push buttons if frequent adjustments are the transmitter display to the ‘dEG’ required. - Page 24 1209. configuration menu. Press E twice to enter the new access code and return the BA474D to the display mode via the ‘CodE prompt. Step 7 Configuration of bargraph display See: Fig 9 and section 7.2.8...
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Page 25: Maintenance
9.9.9.9.9 Input is outside specified range for Wiring and input If a BA474D fails after it has been functioning -9.9.9.9.9 voltage or configuration. with all decimal resistance input. correctly the following procedure should be followed: points flashing. -
Page 26: Servicing
10.2 Tag plate The BA474D can be supplied with a blank or custom laser marked stainless steel plate secured by two screws to the front of the instrument enclosure. This plate can accommodate:... -
Page 27: Alarms
BA474D alarm output is: When an alarm is activated an annunciator appears 40nF on the left hand side of the BA474D display. This 20µH shows which alarm has been activated and will flash if the alarm is delayed or silenced. -
Page 28: Alarm Configuration
See section 10.4.10 When a BA474D indicating temperature transmitter is supplied with optional alarms the conditioning menu 'SiL' Alarm silence time Defines the time that the alarm output is extended as shown in Fig 14. -
Page 30: Hysteresis 'Hstr
‘SP1’ or ‘SP2’. e.g. A BA474D 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 31 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 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 32: 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 15. If the setpoints are not protected by a security code the alarm setpoint prompt 'SP1' will be displayed. - Page 33 Associated apparatus II (1) D [Ex iaD] A2.1 Zones and Maximum Surface dust certification. Temperature The BA474D has been ATEX certified as Group II, Category 1 D apparatus Tamb = -20 to 60 C, with a ATEX gas and IECEx gas and dust certification Maximum Surface Temperature of 80 information is also shown.
- Page 34 Zone 0, 1 or 2 safe input: terminals 1, 2, 3 and 4. When the Class 1 Group IIC BA474D is installed in a Division 2 or Zone 2 area, Group IIB the FM and cFM Nonincendive Approval therefore Group IIA...
- Page 42 APPENDIX 3 A3.1.1 Installation in an explosive gas IECEx certification atmosphere For installations in gas atmospheres the BA474D IECEx and ATEX certifications have identical intrinsic A3.0 The IECEx Certification Scheme IECEx is a global certification scheme for explosion safety parameters and installation requirements. The...
- Page 43 Ta -20 C to +60 A3.4 Installation & maintenance The IECEx dust certification relies on the BA474D If IECEx dust certification is required it must be Indicating Temperature Transmitter enclosure being requested when the BA474D Indicating Temperature dust-tight.
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