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Summary of Contents for BEKA BA324D
- Page 1 BA324D Intrinsically safe loop-powered 4½ digit field mounting indicator issue 12 Issue: 12 March 2014...
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Page 2: Table Of Contents
8.1 Fault finding during commissioning 8.2 Fault finding after commissioning 8.3 Servicing 8.4 Routine maintenance 8.5 Guarantee 8.6 Customer comments The BA324D is CE marked to show compliance with the European Explosive Atmospheres Directive 94/9/EC and the European EMC Directive 2004/108/EC... -
Page 3: Description
See Appendix 1. All versions have IECEx certification. The main application of the BA324D is to display a measured variable or control signal in a hazardous process area. The zero and span of the display are independently adjustable so that the indicator... -
Page 4: Intrinsic Safety Certification
While this button pushed indicator will display the number which For this reason the BA324D only has an apparatus the indicator has been calibrated to certificate. No system certificate has been issued, display with a 20mA input. When or is required, because the system certificate of the... -
Page 5: Certification Label Information
This allows the BA324D to be installed in all Zones and to be used with most common industrial gases. 3.4 Certification Label Information The certification label is fitted in a recess on the top outer surface of the enclosure. It shows the... -
Page 6: Installation
5. INSTALLATION 5.1 Location The BA324D indicator is housed in a robust IP66 glass reinforced polyester (GRP) enclosure incorporating an armoured glass window and stainless steel fittings making it suitable for exterior mounting in most industrial installations, including off-shore and waste water treatment. -
Page 7: Emc
Fig 5 Dimensions and terminal connections Fig 4 BA324D installation procedure 5.3 EMC The BA324D complies with the requirements of the European Directive 2004/108/EC. specified immunity all wiring should be in screened twisted pairs, with the screens earthed in the safe... -
Page 8: Programming And Calibration
6. PROGRAMMING & CALIBRATION All new BA324D indicators are supplied calibrated as requested at the time of ordering. If calibration The BA324D is programmed and calibrated via four push-buttons which are located behind the is not requested, the indicator will be set to display 0.00 with 4mA input, and 100.00 with 20mA input,... - Page 9 Calibration of display using internal 'C - - P' Function of P push-button references. The BA324D may be programmed to Enables the zero and span of the display the input current in milliamps or indicator to be adjusted without the...
- Page 11 Up or non-linearised differential flowmeter. Below 5% of flow the BA324D display is forced to zero. Down buttons. When the first digit is correct, pressing P will transfer control to the next digit.
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Page 12: Calibration Of Internal References
6.7 Conditioning sub-menu: Cond The accuracy of the internal references, and hence the display accuracy, will depend upon the This sub-menu allows the mains (line) frequency at which the indicator has maximum ac rejection to accuracy of the external current source. With a maximum span of 19999 the indicators have a be selected and the two internal references to be... -
Page 13: Calibration Examples
The following examples illustrate the two ways in the external switch connector. The security code which a BA324D indicator may be calibrated. override link is located on the inner row of five pins as shown in Fig 7. 7.1 Using an external current source The BA324D indicator is required to display: -50.0... - Page 14 7.2 Using the internal references decimal point in front of the least As in 7.1 the BA324D is required to display: significant digit. Press E to return to the main menu. -50.0 with a 4mA input 1050.0...
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Page 15: Maintenance
1050.0 Press E to return to the 'SPAn' prompt. Press E again to return to the main menu. If a BA324D fails after it has been functioning correctly, the following table may help to identify Step 7 Return to display mode the cause of the failure. -
Page 16: Routine Maintenance
BEKA associates 8.4 Routine maintenance The mechanical condition of the instrument and The BA324D can also be supplied with a blank or electrical calibration should be regularly checked. custom engraved stainless steel plate secured by The interval between inspections depends upon two screws to the side of the instrument enclosure. -
Page 17: Solid State Output
Clause 5.4 of EN50020:1994. This allows each of the BA324D alarm outputs to be connected to any intrinsically safe circuit protected by a Zener barrier or galvanic isolator... -
Page 18: Programming And Adjustment
9.2.3 Programming and adjustment Display Description of function When an alarm card is added to a BA324D the main programme menu is extended as shown in 'SIL' Alarm silence time Fig 11. The additional functions appear between Defines the time that the alarm output 'Cond' and 'C--P' in the main menu. -
Page 19: Alarm Silence Time
CAUTION The alarm silence time may be adjusted between 0 and 3600 seconds in 1 second increments. When the 4/20mA supply is removed both alarm outputs will open To adjust the alarm silence time select 'SIL' from irrespective conditioning. the alarm menu and press P which will reveal the Therefore for fail safe operation both existing time. -
Page 20: Adjusting Alarm Setpoints From
9.2.12 Adjusting alarm setpoints from the display mode If the correct code is entered pressing E will cause Access to the alarm setpoints from the indicator alarm setpoint prompt 'SP1' to be displayed. display mode is obtained by operating the P and Pressing the Up or Down button will toggle the Up push-buttons simultaneously as shown in Fig display between the two alarm setpoint prompts... -
Page 21: Lineariser
9.3 Lineariser The indicator can be supplied with a sixteen point lineariser which may be adjusted to compensate for almost any non linear variable. For example, a level signal from a horizontal cylindrical tank may be linearised by the indicator to display the tank contents in linear volumetric units. -
Page 22: Current Source
The number of break-points required should first When the required display has been set, press E be entered using the 'Add' and 'dEL' functions. In to enter the information and return to the sub-menu both these functions the indicator initially displays from which another break-point can be selected. -
Page 23: Tare Function
The indicator will display 'Add' or 'dEL' 9.5 Display backlight The BA324D may be supplied with two different depending upon the last function used. backlights. The loop powered backlight produces required indicator display at each break-point can... -
Page 25: Separately Powered Backlight
This backlight is connected in series with the Fig 15. Any certified device may be used, roviding 4/20mA measuring circuit so that like the BA324D the output parameters do not exceed: indicator it is powered by the 4/20mA signal. This... -
Page 26: Pipe Mounting Kits
9.7 Pipe mounting kits Two pipe mounting kits are available for securing the BA324D to a horizontal or vertical pipe. BA392D Stainless steel bracket secured by two worm drive hose clips. Will clamp to any pipe with outside diameter between 60 and 80mm. -
Page 27: Appendix 1
A1.3 Classes, Divisions, Gas Groups and Temperature rating A1.0 Factory Mutual Approval For installations in the USA the BA324D and The BA324D has a T4 temperature rating at a accessories have FM and cFM intrinsic safety, maximum ambient temperature of 60 It has Class I, II and III, Divisions 1 and 2;... - Page 28 A3.2.1 Loop powered backlight A3.0 Display backlights This backlight is connected in series with the The FM approval allows the BA324D to be 4/20mA measuring circuit so that like the BA324D supplied with two different backlights. The loop indicator it is powered by the 4/20mA signal. This...
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Page 29: Atex Dust Certification
A2.1 Zones and Maximum Surface Temperature The BA324D has been ATEX certified as Group II, Category 1 GD apparatus Tamb = -20 to 60 with a Maximum Surface Temperature of 80 When installed as specified by EN 61241-14 The instrument serial number and date of ‘Electrical apparatus for use in the presence of... -
Page 30: Iecex Certification
The IECEx certificate may be downloaded from www.beka.co.uk, www.iecex.com or requested from the BEKA sales office. A3.2 Versions of the BA324D All versions of the BA324D indicator have IECEx certification. This includes: ATEX version for use in gas atmospheres. IECEx code Ex ia IIC T5...
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