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Summary of Contents for BEKA BA334NG
- Page 1 BA334NG Ex nA and Ex tc Externally powered Rate Totaliser Issue 5 Issue: 5 July 2019...
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Page 2: Table Of Contents
6.6 Input type: inp . type 6.7 Debounce: debounce 6.8 Display update interval: update 6.9 Upper display: di5p-1 6.10 Lower display: di5p-2 The BA334NG is CE marked to show compliance with the European Explosive Atmospheres Directive 2014/34/EU and the European EMC Directive 2014/30/EU... - Page 3 Maintenance Appendix 1 ATEX dust certification Fault finding during commissioning Fault finding after commissioning Servicing Appendix 2 IECEx gas and dust certification Routine maintenance Guarantee Customer comments Appendix 3 ETL & cETL certification for installation in USA and Canada. 10. Accessories 10.1 Units of measurement and instrument identification.
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Page 4: Description
1. DESCRIPTION 2. OPERATION The BA334NG is an Ex nA and Ex tc certified, field Fig 1 shows a simplified block diagram of the mounting, pulse input rate totaliser primarily BA334NG Rate Totaliser. The instrument can intended for use with flowmeters in Zones 2 or 22. -
Page 5: Initialisation
2.1 Initialisation 2.2 Controls Each time power is applied to the Rate Totaliser The BA334NG is controlled and configured via four initialisation is performed. After a short delay the front panel push buttons. In the totalisation mode following display sequence occurs: i.e. -
Page 6: Displays
3. CERTIFICATION The BA334NG has two digital displays and associated annunciators, plus a flow indicator as The BA334NG has ATEX and IECEx Ex nA gas shown on front cover of this manual. and Ex tc dust certification. The main sections of... -
Page 7: Safety Parameters
Supplied from a limited energy circuit with 3.7 Remote reset terminals output parameters in normal operation equal The BA334NG total display my be reset to zero by to, or less than the instrument’s input connecting the external reset terminals RS1 and parameters. -
Page 8: System Design For Gas Hazardous Areas
4.1 Power supply AREAS. The BA334NG Rate Totaliser requires a minimum of 10V between terminal 1 & 2 and consumes: When correctly installed in Zone 2 the BA334NG 10mA without optional backlight Rate Totaliser may be connected to almost any plus when terminals 3 &... -
Page 9: Pulse Input
4.2 Pulse input Zone 1 as shown in Fig 5. The flowmeter sensor The BA334NG can display the rate and total flow should have Ex e or Ex d certification permitting from flowmeters with a wide variety of pulse outputs installation in Zone 1. -
Page 10: Open Collector Input
500V rms insulation test to earth. 4.2.4 2-wire proximity detector input Most Zone 2 certified flowmeters incorporating a A BA334NG may also be remotely reset from the NAMUR 2-wire proximity detector may be directly safe area. Any switch may be used. -
Page 11: Installation
INSTALLATION Location The BA334NG Rate Totaliser 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 Zone 2 industrial on-shore and off-shore installations. The Rate Totaliser should be positioned where the display is not in continuous direct sunlight. -
Page 12: Emc
The BA334NG complies with the requirements of the European EMC Directive 2014/30/EU. specified immunity all wiring should be in screened twisted pairs, with the screens earthed at one point in the safe area. Units of measurement and tag marking on scale card. -
Page 13: Configuration And Calibration
5CALE-t is a dividing factor that converts Configuration of the isolated pulse output, which is the output from FACtor into the required total fitted to all BA334NG Rate Totalisers is described display engineering units. e.g. if the output from separately in section 6.24. - Page 14 6.2 Accessing configuration functions 6.3 Summary of configuration functions Throughout this manual push buttons are shown as This section summarises all the configuration functions. When read in conjunction with Fig 10 it &, *, ( and ) and legends displayed by the instrument are shown in a seven segment font provides a quick aid for configuring the Rate exactly as they appear on the instrument display...
- Page 15 Display Summary of function Display Summary of function Upper display Rate scale factor di5P-1 5CALE . r Defines whether rAtE or totAL is 5CALE . r is a dividing factor that shown on the upper display. The converts the pulse output from other variable will be shown on the FACtor into the required rate lower display, providing the lower...
- Page 16 Display Summary of function Display Summary of function Local reset Reset grand total from LoC Clr CLr-Gtot Contains sub-menu with configuration menu. functions enabling total and grand This function resets the grand total total to be reset to zero via the front zero from within...
- Page 17 6.4 Rate Totaliser function: FunCtion Notes: The Rate Totaliser contains an adjustable sixteen 1. Maximum voltage input +30V. segment lineariser which used compensate for flowmeter non-linearity. This 2. For flowmeter transducers that require function turns this lineariser on or off. energising i.e.
- Page 20 This function turns the lower display on or off. sloping edges and the pulse amplitude only slightly When turned off, the BA334NG will only have one exceeds the input switching thresholds. eight digit display which may be configured in the di5P-1 function to show total flow or rate of flow.
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Page 21: Position Of Decimal Points: Dp
6.11 Position of the decimal points: dP 6.13 Total scale factor: 5CALE . t The upper and lower displays have eight and six 5CALE. t is a dividing factor adjustable between digits respectively. This function enables the 0 . 0001 and 99999 that enables total flow to be position of the decimal point on both displays to be displayed in the required engineering units. -
Page 22: Timebase: T-Ba5E
To prevent totalisation of very low flow rates that over long periods may result in significant totalisation errors, BA334NG configured to stop totalising when the flow rate falls below an adjustable threshold. 11.3 To check or change the clip-off threshold select 15.7... -
Page 23: Local Reset: Loc Clr
& or * button to change the setting followed by the ) button twice Please contact BEKA associates sales department to enter the change and return to the LoC . c lr if the security code is lost. -
Page 24: Pulse Output
5urE has been entered, pressing the ) button will equipment located in Zone 1 or 2 of a hazardous reset the BA334NG to the factory defaults and area, or to equipment located in a safe area. return the instrument to the totalising mode. -
Page 25: System Design
The Rate Totaliser’s pulse output is a passive circuit The pulse output menu shown in Fig 12 is in the i.e. not powered, but it is totally isolated from all BA334NG configuration menu. The output pulse other Rate Totaliser circuits. Subject to complying... -
Page 26: Pulse Output
6.24.5 Enable pulse output: EnbL 6.24.8 Output pulse width: durAtion This function allows the pulse output to be enabled When 5CALEd is selected in the 5ource sub- or disabled without altering any of the pulse output function (6.24.6) the output pulse width is defined parameters. -
Page 27: Lineariser
7. LINEARISER 7.1 Flowmeter specification Flowmeters are usually supplied with a calibration The BA334NG Rate Totaliser can produce accurate certificate specifying the average K-factor and the results when used with a flowmeter having a flow range over which it applies. -
Page 29: Add A Segment: Add
For each segment an input pulse frequency in Hz 7.3 Add a segment: Add PuL5E fr and a corresponding flowmeter K-factor Add is a sub-menu in the FACtor function that L-FACtor are required. See section 7.1 enables a straight-line segment to be added to the lineariser at any point. -
Page 30: Input Frequency: Pul5Efre
If removing a segment from a configured lineariser, the flowmeter produces per unit volume of flow e.g. the segment to be deleted, which is shown on the 20 pulses per litre, L-FACtor therefore converts left hand side of the display, can be selected using the flowmeter output into engineering units ready the &... -
Page 31: Configuration Example
105 pulses per litre with a magnetic pick-off. press ( to reveal how frequently the Rate Totaliser display is updated. The BA334NG is required to display rate of flow in Using the & or * push button imperial gallons per hour with a resolution of one select 0 . - Page 32 Step 8 Enter the flowmeter K-factor In this example the rate of flow display K-factor is the number of pulses that a is required in imperial gallons. FACtor, flowmeter produces per unit volume of which was adjusted in Step 8 of this flow.
- Page 33 In this example the operator is required Step 17 Return to the totalisation mode to be able to reset the total display but Configuration of the BA334NG is now not the grand total display when the complete. Pressing the ) button will...
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Page 34: Fault Finding During Commissioning
Incorrect rate FACtor rotating but display calibration 5CALE . r incorrect rate t-bA5E If a BA334NG fails after it has been functioning display correctly, the following table may help to identify Flow indicator Incorrect total FACtor the cause of the failure. -
Page 35: Guarantee
9.5 Guarantee Instruments which fail within the guarantee period should be returned to BEKA associates or our local agent. It is helpful if a brief description of the fault symptoms is provided. 9.6 Customer comments BEKA associates is always pleased to receive comments from customers about our products and services. -
Page 36: Accessories
5.4 of this manual. total has exceeded the setpoint. The BA334NG can also be supplied with a blank or custom laser engraved stainless steel legend plate - 10.3.1 Solid state output see Fig 7. -
Page 37: Configuration And Adjustment
Fig 16 shows a typical application in which a 10.3.3 Configuration and adjustment BA334NG Rate Totaliser is mounted in Zone 2 is When a BA334NG Rate Totaliser is fitted with displaying the output from a Flameproof Ex d 2-wire alarms the configuration menu is extended as flowmeter located in Zone 1. -
Page 38: Alarm Enable: Enbl
Display Summary of function 10.3.4 Alarm enable: EnbL This function allows the alarm to be enabled or disabled without altering any of the alarm Alarm enable EnbL Enables or disables the alarm without parameters. Using the & or * push button changing the alarm parameters. -
Page 39: Alarm Output Status: No. N C
Each single pole alarm output may be open or activation of the alarm output to be delayed for a closed in the non-alarm condition. When the fixed time following the alarm condition occurring. BA334NG power supply turned The delay can be set in 1 second increments up to... -
Page 40: Access Setpoint: Ac5P
10.3.12 Flash display when alarm occurs: FL5H will toggle the function between oFF and on, when In addition to the two alarm annunciators on the left set as required, press the ) button to return to hand side of the Rate Totaliser display which show the FL5H prompt in the alarm sub-menu. -
Page 41: Adjusting Alarm Setpoints
0000 will disable the security code allowing direct access to the setpoints from the totalisation mode by pressing the ( and * buttons simultaneously. Please contact BEKA associates sales department if the security code is lost. 10.3.14 Adjusting alarm setpoints from the... -
Page 42: 4/20Ma Output
10.4 4/20mA output To comply with the requirements of EN 60079-14 The BA334NG Rate Totaliser can be supplied with a Electrical installations design, selection factory fitted galvanically isolated 4/20mA current erection, each of the wires entering the hazardous sink output which may be configured to represent area should be individually fused and contain a the rate or total display. -
Page 43: Select Rate Or Total Source: 4-20Type
10.4.7 Display which corresponds to 20mA output: 20 . 000 The Rate Totaliser display which corresponds to a 20.000mA output current is defined by this function. Using the & or * push button select 20 . 000 in the 4/20mA output sub-menu and press ( which will reveal the existing rate or total display with one digit flashing. - Page 44 In addition to ATEX Ex nA certification permitting Ex ic tc certificate indicated by the certificate installation in explosive gas atmospheres, which is number's 'X' suffix. These state that the BA334NG described in the main section of this instruction Rate Totaliser should be:...
- Page 45 ATEX safety parameters described in the main section and Appendix 1 of this manual. The IECEx certificate may be downloaded from the BEKA associates or the IECEx website, or may be requested from the BEKA sales office. A2.2 Installation...
- Page 46 ETL & cETL certification for installations in USA and Canada. A3.0 cETL Mark For installations in the USA and Canada, the BA334NG Rate Totaliser has ETL and cETL Ex nA and Ex tc approval, Control Number 4008610. Copies of the Authorisation to Mark may be down loaded...
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