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Summary of Contents for BEKA BA337NE
- Page 1 BA337NE Rugged one input Ex nA and Ex tc Rate Totaliser Issue 7 Issue: July 2019...
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Page 2: Table Of Contents
9.1 Fault finding during commissioning 9.2 Fault finding after commissioning 9.3 Servicing 9.4 Routine maintenance 9.5 Guarantee 9.6 Customer comments The BA337NE 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 CONTENTS CONTINUED 10. Accessories 10.1 Scale card 10.2 Tag information 10.3 Backlight 10.4 Alarms 10.4.1 Solid state output 10.4.2 Ex nA certification 10.4.3 Summary of configuration functions 10.4.4 Alarm enable: enbl 10.4.5 Type of alarm: type 10.4.6 Setpoint adjustment: 5p1x and 5p2x 10.4.7 Alarm function: hi.
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Page 5: Description
1. DESCRIPTION The BA337NE is an Ex nA and Ex tc certified, panel Factory fitted accessories include an internally mounting, pulse input rate totaliser primarily intended powered display backlight and one of three isolated for use with flowmeters in Zones 2 or 22. -
Page 6: Controls
2.2 Controls 2.3 Displays The BA337NE is controlled and configured via four BA337NE digital displays front panel push buttons. In the totalisation mode associated annunciators, plus a flow indicator as i.e. when the instrument is displaying rate and total shown on the front cover of this manual. -
Page 7: Certification
These special conditions for safe use can be satisfied 3.2 Zones, gas groups and T rating by mounting the BA337NE in an Ex n, Ex e or Ex p The Rate Totaliser has been certified as Group II panel enclosure. For ATEX Category 3 installations Category 3G Ex ic nA IIC T5 Gc –40°C ≥... -
Page 8: Remote Reset Terminals
BA337NE may also be connected to suitably 3.6 Remote reset terminals protected and certified equipment located in Zone 1. The BA337NE total display my be reset to zero by This is illustrated in Fig 5 and explained in connecting the external reset terminals RS1 and RS2 Application Guide AG310. -
Page 9: Pulse Input
Fig 4 Connections for flowmeter sensor in safe area 4.2 Pulse input The BA337NE can display the rate and total flow Providing the BA337NE Rate Totaliser is correctly from flowmeters with a wide variety of pulse outputs installed in an Ex n panel enclosure located in Zone... -
Page 10: Input Switching Thresholds
5 & 6 providing the flowmeter and area. Any switch may be used. Fig 4 illustrates how associated wiring can withstand a 500V rms a BA337NE may be reset from both the safe and the insulation test to earth. hazardous area. -
Page 11: Installation
When installed in a panel enclosure complying with the requirements for Ex n protection as shown in section 3.2 of this manual, the BA337NE may be located in a Zone 2 hazardous area providing that the operating temperature is between –40°C and +60°C and the installation complies with the Rate Totalisers certification requirements. -
Page 12: Rate Totaliser Earthing
Rate Totaliser rear panel. 5.3 Rate totaliser earthing The BA337NE has an M4 earth stud on the rear panel which should be electrically connected to the panel enclosure in which the Rate Totaliser is mounted, or to the plant equipotential conductor. - Page 13 Rate Totalisers will have default The BA337NE uses ‘real’ decimal points. Moving the configuration as shown in the following table, but can position of a decimal point in a scale factor will affect easily be re-configured on-site. the instrument calibration.
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Page 14: Accessing Configuration Functions
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 11 it &, *, ( and ) and legends displayed by the instrument are shown in a seven segment font provides a quick aid for configuring the Rate Totaliser. - 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. converts pulse output from other variable will be shown on the FACtor into the required rate display lower display, providing the lower in engineering units.
- 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 to total to be reset to zero via the front zero from within the configuration panel push buttons when the Rate menu when CLr YE5 is selected, and...
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Page 17: Rate Totaliser Function: Function
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 energising i.e. proximity detectors, switch function turns the lineariser on or off. contacts or open collectors, terminals 3 &... -
Page 20: Debounce: Debounce
This function turns the lower display on or off. When will be lower if the input pulses have sloping edges turned off the BA337NE will only have one eight digit and the pulse amplitude only slightly exceeds the display which may be configured in the di5P-1 input switching thresholds. -
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 0 . 0001 digits respectively. This function enables the position and 99999 that enables total flow to be displayed in of the decimal point on both displays to be the required engineering units. -
Page 22: Timebase: T-Ba5E
First Filter time constant digit seconds long periods may result in significant totalisation errors, the BA337NE may be configured to stop totalising when the flow rate falls below an adjustable threshold. To check or change the clip-off threshold select 11.3 CLP oFF from the configuration menu and press 15.7... -
Page 23: Local Reset: Loc Clr
) button twice to return to the Totaliser is returned to the totalisation mode. configuration menu, or the & or * button to Please contact BEKA associates sales department if change the setting followed by the ) button twice to the security code is lost. - Page 24 5 and press ( to transfer control to the second digit which should be set to u. When 5urE has been entered, pressing the ) button will reset the BA337NE to the factory defaults and return the instrument to the totalising mode.
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Page 25: Lineariser
7. LINEARISER 7.1 Flowmeter specification The BA337NE Rate Totalisers can produce accurate Flowmeters are usually supplied with a calibration results when used with a flowmeter having a K-factor certificate specifying the average K-factor and the that varies with the flow rate, such as a turbine meter flow range over which it applies. -
Page 27: 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 28: Input Frequency: Pul5Efre
If removing a segment from a configured lineariser, K-factor is the number of pulses that the flowmeter the segment to be deleted, which is shown on the left produces per unit volume of flow e.g. 20 pulses per hand side of the display, can be selected using the litre, L-FACtor therefore converts the flowmeter &... -
Page 29: Configuration Procedure
( to reveal how frequently the Rate Totaliser The BA337NE is required to display rate of flow in display is updated. Using the &or * imperial gallons per hour with a resolution of one push button select 0 . - Page 30 Step 8 Enter the flowmeter K-factor In this example the rate of flow display is K-factor is the number of pulses that a required in imperial gallons. FACtor, flowmeter produces per unit volume of which was adjusted in Step 8 of this flow.
- Page 31 ) to store the code and return to the grand total display when the BA337NE the main configuration menu. Rate Totaliser is in the totalisation mode.
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Page 32: Maintenance
Incorrect rate FACtor rotating but display calibration 5CALE . r incorrect rate t-bA5E If a BA337NE fails after it has been functioning display correctly, the following table may help to identify the Flow indicator Incorrect total FACtor cause of the failure. -
Page 33: Guarantee
BEKA associates is always pleased to receive 10.1 Scale card comments from customers about our products and The BA337NE has a window on the right hand side of services. All communications are acknowledged and the display through which to view a scale card whenever possible, suggestions are implemented. -
Page 34: Alarms
Zone of a hazardous area, or equipment located in a safe area. Fig 15 shows a typical application in which a BA337NE Rate Totaliser is mounted in an Ex n panel enclosure located in Zone 2 is displaying the output from an Flameproof Ex d 2-wire flowmeter located in Zone 1. - Page 35 When enabled, alternates the rate or total 10.4.3 Configuration and adjustment display between process value and alarm When a BA337NE is supplied with alarms the reference Al1 or Al2 when an alarm configuration menu is extended as shown in Fig 16.
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Page 36: Alarm Enable: Enbl
When the BA337NE power supply is turned off or disconnected, the alarm parameters. Using the & or * push button select output(s) will open irrespective of whether normally AL1 or AL2 from the configuration menu and press ( open or normally closed outputs have been selected. -
Page 37: Alarm Silence Time: 5Il
The Rate Totaliser's alarm annunciator will start will cause the alarm output to revert to the non-alarm flashing immediately an alarm condition occurs and condition for the programmed alarm silence time. will continue for the delay time, after which the alarm When an alarm is silenced by operating the ( push output will be activated and the alarm annunciator will button, the Rate Totaliser's alarm annunciator will... -
Page 38: Access Setpoint: Ac5P
( and * buttons simultaneously. Please contact BEKA associates sales department if the security code is lost. Fig 17 Setpoint adjustment from the totalisation mode... -
Page 39: Pulse Output
- see + 3V. section 10.4.13 10.5 Pulse output direct: The BA337NE can be supplied with a factory fitted Annunciator continuously activated isolated pulse output for retransmitting pulses to other instruments. Note: Only one of the three output options can be fitted to a BA337NE Rate Totaliser. -
Page 40: Ex Na Certification
Zone 1 or 2 of a hazardous area, or to equipment located in a safe area. Fig 19 shows a BA337NE Rate Totaliser mounted in an Ex n panel enclosure located in Zone 2 retransmitting a pulse to the safe area. The current pulse flows through R1 resulting in a voltage pulse output with an amplitude of about 20V. -
Page 41: Enable Pulse Output: Enbl
10.5.2 Pulse output configuration: PuL5E oP 10.5.4 Source of pulse output: 5ourCE When a BA337NE is supplied with a factory fitted The output pulse may be derived from: pulse output the instrument configuration menu is Incrementation of least significant 5CALEd extended as shown in Fig 20. -
Page 42: Pulse Storage
Fig 21 Application of 4/20mA output (Shown without recommended screened cables) Fig 21 shows a typical application in which a BA337NE Rate Totaliser is mounted in an Ex n panel enclosure located in Zone 2 is retransmitting the 4/20mA current to the safe area. -
Page 43: Configuration
10.6.2 Configuration 10.6.5 Select rate or total source: 4-20tYPE When a BA337NE Rate Totaliser is supplied with an The 4/20mA output current can represent the Rate optional 4/20mA output the configuration menu is Totaliser's rate or total display, this should be defined extended as shown in Fig 22. - Page 44 10.6.7 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 45 'X' suffix to show that special conditions for In addition to ATEX Ex nA certification permitting safe use are specified by the BA337NE Ex ic tc installation in explosive gas atmospheres which is certificate indicated by the certificate number's 'X' described in the main section of this instruction suffix.
- Page 46 For additional information about the IECEx certification scheme and to view the BEKA associate certificates, please visit www.iecex.com A2.1 IECEx Certificate of Conformity The BA337NE Rate Totaliser has been issued with IECEx Certificate Conformity number IECEx ITS 16.0005X which specifies the following...
- Page 47 For installations in the USA and Canada, the BA317NE Tachometer has ETL and cETL Ex nA and Ex tc approval, Control Number 4008610. Copies of the Authorisation to Mark are available from the BEKA associates sales office and www.beka.co.uk A3.1 ETL and cETL certification Canadian standards used assessment and certification of the BA317NE are listed on the cETL Authorisation to Mark.
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