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Summary of Contents for BEKA BA354NE
- Page 1 BA354NE Type nA 4/20mA loop-powered field mounting Rate Totaliser Issue 3 Issue: 3 July 2014...
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Page 2: Table Of Contents
Loop powering the backlight 10.4.2 Separately powering the backlight. 10.5 Pipe mounting kits Appendix 1 ATEX dust certification Appendix 2 IECEx certification The BA354NE 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
1. DESCRIPTION The BA354NE is a Type nA certified 4/20mA loop powered Rate Totaliser primarily intended for use with flowmeters. The instrument simultaneously displays the rate of flow and the total flow in engineering units on two separate displays. It is loop powered but only introduce a 1.2V drop, which... -
Page 4: Displays
When the button is released the flow rate will again 2.2 Displays be displayed. The BA354NE has two digital displays and associated annunciators, plus a flow indicator as While this button is pushed the Rate shown on page 1. Totaliser will display the time in hours,... -
Page 5: Certification
Is a 16 digit (15 digit with negative sign) 3. CERTIFICATION Total number which is not zeroed when the The BA354NE Rate Totaliser has ATEX and IECEx total display is zeroed. The Grand Total gas and dust certification. This section of the is viewed from the operating mode as instruction manual describes ATEX gas certification. -
Page 6: 4/20Ma Input
3.5 Certification label information The certification label is fitted in a recess on the top outer surface of the instrument enclosure. It shows the ATEX certification information and BEKA associates name and location. Non European certification information may also be shown. -
Page 7: System Design For Zone 2 Gas Hazardous Areas
4. SYSTEM DESIGN FOR ZONE 2 GAS 4.2 Remote indication HAZARDOUS AREAS The BA354NE Rate Totaliser may be driven directly from a safe area instrument with a 4/20mA output to 4.1 Transmitter loops provide a remote display within a Zone 2 hazardous The BA354NE Rate Totaliser may be connected in area. -
Page 8: Resetting The Total Display To Zero
4.3 Resetting the total display to zero The BA354NE total display may be reset to zero by momentarily connecting the reset terminals RS1 and RS2 together with a resistance of less than 1kΩ. Within the hazardous area in which the BA354NE is located this may be achieved with a manually activated industrial push button as shown in Fig 2. -
Page 9: Installation
5. INSTALLATION 5.1 Location The BA354NE Rate Totaliser is housed in a robust IP66 glass reinforced polyester (GRP) enclosure incorporating an armoured glass window and stainless steel fittings suitable for exterior mounting in industrial installations at ambient temperatures between -20 and +70ºC. -
Page 10: Configuration And Calibration
6. CONFIGURATION AND CALIBRATION The BA354NE is configured and calibrated via four push buttons that are located behind the instrument control cover. If frequent access to the push buttons is required, the Rate Totaliser can be supplied with duplicate membrane keypad mounted on the outside of the control cover. - Page 11 For example, if a BA354NE is displaying rate in litres 6.2 Accessing the configuration and per minute, setting '5CALE-t' to 4.5461 produces a calibrations functions. total display in UK gallons. Alternatively, setting '5CALE-t' to 4546.1 will produce a total display in Throughout this manual push buttons are shown as thousands of UK gallons.
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Page 12: Summary Of Configuration Functions
6.3 Summary of configuration functions Display Summary of function This section summarises each main configuration functions includes cross 'CAL' Calibration of the rate display using reference to a more detailed description. Fig 7 an external current source. illustrates the location of each function within the Enables the zero and span of the rate configuration menu. -
Page 13: Total Scale Factor
Display Summary of function Display Summary of function ‘5CALE-t’ Total scale factor 'r5Et' Reset Rate Totaliser to factory Defines the arithmetic relationship defaults. between the rate and total displays. Contains two sub-functions, May be adjusted between 0.0001 and Select: 99999 ‘ConF’... - Page 15 6.4 Rate Totaliser function: ‘FunC’ ‘bi-Lin’ 16 segment adjustable lineariser This configuration function defines the relationship adjusted compensate between the Rate Totaliser’s 4/20mA input current flowmeter non-linearity with bi-directional instruments’s rate display. Three flow. Use of the lineariser is described in alternatives are available for uni-direction flow and section 7 of this instruction manual.
- Page 16 'ZEro' prompt . point may be positioned with up to five digits after it, or it may be omitted. Pressing the ▲ button will cause the BA354NE to display 'SPAn' which is a request for a 20mA input Notes: current.
- Page 17 'CLr.Gtot' prompt 4/20mA input current, or to disconnect the BA354NE configuration menu. Rate Totaliser from the 4/20mA loop. CAUTION When using the ‘5Et’ function the instrument’s...
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Page 18: Clip-Off
When enabled, ‘t-rE5Et’ allows an operator to reset flashing. The value of the flashing digit may be the BA354NE total display to zero by operating the changed by pressing the ▼ or ▲ button. When this ▼ and ▲ push buttons simultaneously for at least digit is set as required pressing P will transfer control two seconds. -
Page 19: Security Code
When enabled, ‘Gt-rE5Et’ allows an operator to from the configuration menu and press P, the Rate reset the BA354NE grand total to zero by operating Totaliser will display one of the reset options ‘ConF’ the E and ▲ push buttons simultaneously for at least or ‘LtAb’. -
Page 20: Lineariser Calibration Using An External Current Source
7. LINEARISER 7.1 Lineariser calibration using an external A sixteen segment, seventeen break-point (0 to 16) current source. lineariser may be selected in the ‘FunC’ section of This method allows direct calibration of the lineariser the configuration menu. The position of each break- with an external current source and is the preferred point is fully adjustable so that the slope of the method when traceability is required. -
Page 22: Example, Adding Break-Points To A New Indicator
The delete break-point sub-function 'dEL' operates required, using the ▲ button select the new highest in exactly the same way as the 'Add' sub-function break-point '2:2' and add the second additional described above. Once within the ‘dEL’ sub- break-point by operating the P push button which function each time the P button is pressed a break- will result in a display of '2:3'. -
Page 23: Example, Adding Break-Points To A New Indicator
To add a break-point using the ▲ or ▼ button select display at the first break-point. When set as 'SEt' from the configuration menu and press P which required, press E to return to the ‘0:n’ prompt from will result in the 'Add' sub-function prompt being which the next break-point can be selected using the displayed. -
Page 24: Calibration Examples
20mA at a flow of 1100 litres / minute. pressing E. BA354NE is required to display flow in litres per minute with a resolution of 1 litre and total flow in cubic metres with a resolution of 0.1 cubic metres. - Page 25 'CAL' per minute but the total display is from the configuration menu and press required in cubic metres: The BA354NE will request a 4mA 5CALE-t Units of rate display input by displaying 'ZEro'. Set the input Units of total display current to 4.0000mA and press P which...
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Page 26: Using The Internal Reference
Totaliser is connected to a flowmeter having a linear output of 20mA at a flow of 1100 litres / minute. The BA354NE is required to display flow in litres per minute with maximum resolution and total flow in cubic metres with a resolution of 0.1 cubic metres. -
Page 27: Maintenance
Recalibrate rate display. Rate Totalisers which fail within the guarantee Total display Over-range period should be returned to BEKA associates or our showing local agent. It is helpful if a brief description of the -9999999 or Reset total display fault symptoms is provided. -
Page 28: Accessories
The open circuit identification. condition should therefore be chosen as the alarm The BA354NE Rate Totalisers is fitted with a blank condition when designing an alarm system. Fig 10 escutcheon around the liquid crystal display. This illustrates the conditions available and shows which... -
Page 29: Solid State Output
Zone 2 and alarm 2 is switching a sounder located in the safe area. The BA354NE has Ex nA protection but when mounted in Zone 2 the alarm outputs may be used to switch Ex nC Protected Sparking and Ex nR Restricted Breathing apparatus in addition to Ex nA apparatus. -
Page 31: Configuration And Adjustment
10.3.3 Configuration and adjustment Summary of alarm configuration functions When optional alarms are fitted to a BA354NE Rate Totaliser the configuration menu is extended as Display Description of function shown in Fig 13. The additional functions appear between the ‘C - - P’ and ‘5CALE-t’ functions. -
Page 32: Alarm Delay
▲ and ▼ push buttons, and the P button to move control to e.g. A BA354NE calibrated to display a rate of 0 to the next digit. When the required setpoint has been... -
Page 33: Flash Display When Alarm
e.g. An Rate Totaliser with a high alarm set at 9000 variable, display alternates between and an alarm delay of 30 seconds will perform as numerical value and ‘Alr1-2’. follows: To enable or disable the function select 'FL5H' from The alarm annunciator will start to flash when an the alarm menu and press P which will reveal the increasing rate display equals 9000, but the alarm current setting. -
Page 34: Adjusting Alarm Setpoints From
5Pt1. Similarly for alarm 2.10.4 Display backlight The BA354NE loop powered Rate Totaliser can be supplied with a factory fitted backlight that may be loop or separately powered. When loop powered the backlight produces green background illumination enabling the display to be read at night or in poor lighting conditions. -
Page 35: Separately Powering The Backlight
10.4.2 Separately powering the backlight The optional backlight may also be powered from a separate safe area power supply as shown in Fig 17. Fig 16 Loop powered backlight strictly comply with requirements EN60079:14 Electrical Installation in Hazardous Areas, each of the wires entering the hazardous area should be individually fused and contain a means isolation. -
Page 36: Pipe Mounting Kits
10.5 Pipe mounting kits Two pipe mounting kits are available for securing the BA354NE to a horizontal or vertical pipe. BA392D Stainless steel bracket secured by two worm drive hose clips. Will clamp to any vertical or horizontal pipe with an outside diameter between 60 and 80mm. -
Page 37: Appendix 1
Zone 22 combustible dust applications. The Rate described in the main section of this instruction Totaliser should be located where the minimum manual, the BA354NE also has ATEX Ex tc amount of dust will accumulate on the enclosure and certification, allowing... -
Page 38: Appendix 2 Iecex Certification
Ex tc IIIC T80ºC Dc IP66 Ta = -40ºC to 70ºC Note: The specified operating temperature of the BA354NE is –20 to +70ºC. At temperatures below – 20ºC the instrument will continue to totalise but the display will not function.
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