BEKA BA364NG Owner's Manual
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BEKA BA364NG Owner's Manual

Two input ex na and ex tc counter
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BA364NG
Two Input
Ex nA and Ex tc
Counter
Issue 6
Issue: 6
9
th
July 2019

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Summary of Contents for BEKA BA364NG

  • Page 1 BA364NG Two Input Ex nA and Ex tc Counter Issue 6 Issue: 6 July 2019...

  • Page 2: Table Of Contents

    Enable pulse output: enbl Source of output pulse: 5ource Divide output pulse frequency: divide Output pulse width: duration Configuration example The BA364NG 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 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 Accessories 10.1 Units of measurement and instrument identification. 10.2 Backlight 10.3 Alarms 10.3.1 Solid state output 10.3.2 Ex nA certification 10.3.3 Summary of configuration functions.

  • Page 5: Description

    1. DESCRIPTION 2. OPERATION The BA364NG is an Ex nA and Ex tc certified, field Fig 1 shows a simplified block diagram of the mounting, two input Counter which will accept pulses BA364NG Counter. The instrument has two on one or both inputs.

  • Page 6: Initialisation

    2.1 Initialisation Note: When optional alarms are fitted, the Each time power is applied to a BA364NG Counter BA364NG Counter may be configured to provide initialisation is performed. After a short delay the direct access to the alarm setpoints from the...

  • Page 7: Certification

    3. CERTIFICATION In gases that may safely be used with equipment having a temperature classification of: The BA364NG has ATEX and IECEx Ex nA gas and Ex tc dust certification. The main sections of this instruction manual describes ATEX gas certification.

  • Page 8: Pulse Input

    3.6 Pulse input 3.8 Certification label information The BA364NG Counter has two pulse inputs, A and b, The Counter certification information label is fitted that may be individually configured for use with most in a recess on the top outer surface of the types of sensor.

  • Page 9: System Design For Hazardous Areas

    3 & 4 are linked protected apparatus located in Zone 2. Because the plus when terminals 7 & 8 are linked BA364NG is not certified intrinsically safe it should not plus 16mA with optional backlight be connected to an intrinsically safe system.

  • Page 10: Pulse Input

    Zone 2 and Fig 4 the connections required when the sensors are in a safe area. Terminals 2, 6, 10 and RS2 of the BA364NG Counter are internally connected together. If any of these terminals are earthed, as shown in Figs 2 & 3, the...

  • Page 11: Magnetic Pick-Off Input

    See section 6.6. 4.2.5 Magnetic pick-off input Sensors incorporating a magnetic pick-off will usually have a low level ac voltage output which a BA364NG Counter can sense when configured for a CoiL input. The Counters input terminals may be connected to...

  • Page 12: Installation

    INSTALLATION Location The BA364NG Counter is housed in a robust IP66 glass reinforced polyester (GRP) enclosure incorporating armoured glass window stainless steel fittings making it suitable for exterior mounting in most industrial on-shore and off-shore installations. The Counter should be positioned where the display is not in continuous direct sunlight.

  • Page 13: Emc

    The BA364NG complies with the requirements of the European EMC Directive 2014/30/EU. For 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 14: Calibration Structure

    6.1 Calibration structure Fig 8 shows the calibration structure of the BA364NG Counter. The two pulse inputs are processed by the count function to produce a single output having the selected arithmetic function, such as the sum of pulse input A and pulse input b.

  • Page 15: Accessing Configuration Functions

    If after accessing the configuration menu the interval HEAVY between operating any front panel push button LiGHt exceeds one minute, the BA364NG will automatically See section 6.6 return to the display mode and any configuration changes will not be stored in permanent memory.
  • Page 16 Display Summary of function Display Summary of function Lower display dEbounCE [for Input-b] di5P-2 Defines level of input debounce Turns the lower display, which applied to the pulse input b to prevent normally shows rate, on or oFF. false counting: See section 6.15 dEFAuLt HEAVY...
  • Page 17 Reset value Reset configuration to factory CLr VAL r5Et dEF Defines a preset number to which the defaults. total display will be set when the Returns the BA364NG Counter to BA364NG Counter locally the factory defaults shown in remotely reset.

  • Page 20: Input A: Input-A

    400µs 5µs contacts or open collector sensors, terminals 3 & 4 of the BA364NG should be linked together. The maximum counting frequency of the BA364NG 3. To count correctly, the input pulse must fall depends upon the debounce level selected, the below the lower switching threshold and rise shape of the input pulse and its amplitude.

  • Page 21: Input B: Input-B

    7 occurs to be selected. It applies to input b for all & 8 of the BA364NG should be linked together. counting modes except quadrature A rEL b and input A controlled by input b A Con b.

  • Page 22: Display Update Interval: Update

    The counting edge function CntEdg-b is not included in the configuration menu when the BA364NG Counter has a quadrature input A rEL b or when input A is controlled by input b A Con b. In quadrature mode the instrument will count up when the rising edge of input-b leads the rising edge of input-A.

  • Page 23: Lower Display: Di5P-2

    This function turns the lower display on or off. When 5CALE . t is a dividing factor adjustable between turned off, the BA364NG will only have one eight digit 0.0001 and 99999 that enables the total to be display which may be configured in the di5P-1 displayed in engineering units.

  • Page 24: Timebase: T-Ba5E

    6.19 Timebase: t-bA5E response can be obtained for most applications. The timebase multiplies the rate display by 1, 60 or 3,600 depending upon whether the BA364NG During commissioning it is recommend that initially Counter is required to display rate per second, per the second digit is set to 0 (off) and the first digit is minute or per hour.

  • Page 25: Direction Of Count: Up Or Dn

    This allows the BA364NG to be used as a the grand total display to zero from the display pre-set down counter.

  • Page 26: Security Code: Code

    6.28 Reset configuration to factory defaults ye5, pressing ( will result in the instrument r5Et dEF This function returns the BA364NG Counter to the displaying 0000 with the first digit flashing. This is a factory defaults shown in section 6.0.

  • Page 27: Pulse Output

    The pulse output should not be directly connected to intrinsically safe equipment. Fig 11 shows a BA364NG Counter mounted 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 28: Configuration

    A+b. When When the total display is reset to zero or the power selected 5CALEd supply to the BA364NG Counter is disconnected or additional functions, diVidE turned off, any stored pulses will not be retained. and durArion, appear in the pulse output sub-menu.

  • Page 29: Output Pulse Width: Duration

    7.8 Output pulse width: durAtion When the output pulse is derived from the total display, the pulse width is defined by this function. One of 11 pulse widths in milliseconds may be selected: 0 . 1 0 . 5 2 . 5 Using the &...

  • Page 30: Configuration Example

    (. Using the & or BA364NG Counter front panel. Similarly the grand * button select A rEL b the quadrature total is not to be resettable from the BA364NG function and press ) to return to the Counter front panel.
  • Page 31 Step 9 Set the display timebase occurs before input b, a positive display In this example the rate display (speed) is will result when the BA364NG is required in metres per second. configured to count up. Select t-bA5E from the configuration...
  • Page 32 ) to return to the configuration menu. Step 14 Return to the display mode Following completion of configuration, return the BA364NG to the display mode by pressing ). The instrument will display dAtA followed by 5AVE while the...

  • Page 33: Maintenance

    3 & 4. being present. terminals 7 & 8. terminals 7 & 8. That input signal If a BA364NG Counter fails after it has been polarity is correct. Pulse input Incorrect rate functioning correctly, the following table may help...

  • Page 34: 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 35: Accessories

    5.4 of this manual. These alarm outputs should not be used for critical safety applications such as a The BA364NG can also be supplied with a blank or shut down system. custom laser engraved stainless steel legend plate - see Fig 7.

  • Page 36: Ex Na Certification

    Counter configuration menu is extended as shown in Fig 15. Each alarm may be configured Fig 14 shows an application in which a BA364NG to operate on the rate or total display. Counter mounted in Zone 2 is displaying the output from a Flameproof switch contact located in Zone 1.
  • Page 37 Display Summary of function Hysteresis H5tr Adjusts the alarm hysteresis. Only available on a rate alarm. See section 10.3.9 Alarm delay time dELA Adjusts the delay between the display equaling the setpoint and the alarm output being activated. See section 10.3.10 Alarm silence time Defines the time that the alarm output remains...

  • Page 38: Alarm Enable: Enbl

    10.3.4 Alarm enable: EnbL 10.3.5 Type of alarm: tYPE This function allows the alarm to be enabled or Alarm 1 and Alarm 2 are totally independent, both disabled without altering any of the alarm parameters. may be rate or total alarms, or one may be Using the &...

  • Page 39: Alarm Function: Hi. Lo

    000000 and 999999, and the total alarm setpoint SP1t and SP2t anywhere e.g. A BA364NG Counter configured to display a between 00000000 and 99999999. rate of 0 to 5000, with a high alarm set at 4000 and...

  • Page 40: Flash Display When Alarm Occurs: Fl5H

    In addition to the two alarm annunciators on the left Access to the two alarm setpoints from the hand side of the BA364NG Counter display which BA364NG Counter’s display mode is obtained by show the status of both alarms, this function provides...
  • Page 41 To adjust an alarm setpoint select 5P1x or 5P2x and press ( which will reveal the current setting. The flashing digit of the setpoint may be adjusted using the & or * push button and the ( button to move control to the next digit.

  • Page 42: 4/20Ma Output

    10.4 4/20mA output The BA364NG Counter can be supplied with an optional factory fitted galvanically isolated 4/20mA output which may be configured to represent the rate or total display. 10.4.1 Ex nA certification The optional 4/20mA output is a separate galvanically...

  • Page 43: Access 4/20Ma Output: Sub-Menu: 4-20 Op

    10.4.5 Select rate or total source: 4-20tYPE The 4/20mA output current can represent the BA364NG Counter’s rate or total display and this must be defined before any other 4/20mA current output functions are configured. Using the & or * push button select 4-20tYPE in the 4/20mA output sub-menu and press ( to reveal the existing setting totAL or rAtE.
  • Page 44 'X' suffix. These state that the BA364NG described in the main section of this instruction Counter should be: manual, the BA364NG Counter has ATEX Ex tc dust ignition protection by enclosure certification permitting a. Supplied from a limited energy circuit with installation in combustible dust atmospheres.
  • 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...
  • Page 46 ETL & cETL certification for installations in USA and Canada. A3.0 cETL Mark For installations in the USA and Canada, the BA364NG Counter has ETL and cETL Ex nA and Ex tc approval, Control Number 4008610. Copies of the Authorisation to Mark may be down loaded from the BEKA associates website www.beka.co.uk or...

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