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BEKA BA368E Manual

Two input intrinsically safe counter
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BA368E
Two Input
Intrinsically safe
Counter
Issue 5
Issue:
5
9th July 2019

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Summary of Contents for BEKA BA368E

  • Page 1 BA368E Two Input Intrinsically safe Counter Issue 5 Issue: 9th July 2019...

  • Page 2: Table Of Contents

    Divide output pulse frequency 4.2.7 Voltage pulse input Output pulse width 4.2.8 Remote reset Configuration example Installation Location Installation procedure Scale card The BA368E 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 Scale card 10.2 Tag information 10.3 Alarms 10.3.1 Solid state output 10.3.2 Intrinsic safety 10.3.3 Summary of configuration functions.

  • Page 4: Description

    1. DESCRIPTION This intrinsically safe, two input pulse counter will The BA368E may be supplied with any of the accept pulses on one or both inputs and may be following factory fitted accessories: configured to show one of the following in...

  • Page 5: Controls

    2.2 Controls 2.3 Displays The BA368E Counter is controlled and configured The BA368E Counter has two digital displays and via four front panel push buttons. In the display associated annunciators, plus a pulse input indicator mode i.e. when the instrument is counting the push as shown on the front cover of this manual.

  • Page 6: Intrinsic Safety Certification

    This allows the BA368E Counter to be installed in all gas Zones and to be used with most common 3.1 ATEX gas certification industrial gases except carbon disulphide and ethyl Notified Body Intertek Testing and Certification Ltd nitrite which have an ignition temperature of 95°C.

  • Page 7: Pulse Input Terminals

    BA368E for input A and between terminals 7 & 8 for parameters. input b, connects an internal 7V, 6mA supply to the respective input. Energising is not required when a BA368E input is connected to a voltage source.

  • Page 8: Remote Reset Terminals

    3.6 Remote reset terminals 3.7 Certification label information The BA368E Counter may be reset to zero by The certification information label is fitted in a recess connecting the reset terminals RS1 and RS2 on the top outer surface of the enclosure. It shows together for more than one second.

  • Page 9: System Design For Hazardous Areas

    BA368E Counter. Terminals 2, 6, 10 and RS2 of the BA368E Counter are internally connected together. If any of these terminals are earthed, as shown in Figs 2 & 3, the other terminals should only be connected to the same earth, i.e.

  • Page 10: Pulse Input

    4.1.2 Pulse input 4.1.5 Open collector input As shown in Fig 2 the BA368E can count pulses Most open collector sensors located in the same from a wide variety of sensors in the hazardous hazardous area as the BA368E Counter may be area, or from the safe area as shown in Fig 3.

  • Page 11: Remote Reset

    Zener barrier is required. A BA368E may also be remotely reset to zero from the safe area. Any switch may be used but a Zener barrier is required to transfer the contact closure into the hazardous area which may be combined with the supply barrier so that only one package is required.

  • Page 12: Pulse Input

    4.2.2 Pulse input As shown in Fig 4 the BA368E can count pulses from a wide variety of sensors in the hazardous area, or from the safe area as shown in Fig 5. No galvanic isolator is required in series with the...

  • Page 13: Magnetic Pick-Off Input

    No galvanic isolator is required. > 10.5V dc > 9.2mA dc A BA368E Counter may also be remotely reset to > 24mW zero from the safe area. Any switch may be used but a galvanic isolator or IS relay is required to See section 6.6 for details of the maximum counting...

  • Page 14: Installation

    IP20 ingress protection. DIN 43700 138.0 +1.0/ -0.0 x 68 +0.7 -0.0 The BA368E may be installed in any panel providing that the operating temperature is between -40°C and +70°C and the intrinsic safety requirements are complied with.

  • Page 15: Installation Procedure

    Fig 6. card can easily be changed without removing the Counter from the panel or opening the instrument b. Slide the gasket over the body of the BA368E enclosure. Counter before inserting the instrument into the panel aperture.

  • Page 16: Calibration Structure

    6.1 Calibration structure Fig 9 shows the calibration structure of the BA368E 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 17 LiGHt If after accessing the configuration menu the interval See section 6.6 between operating any front panel push button exceeds one minute, the BA368E will automatically return to the display mode and any configuration Contains sub-menu with two inPut-b changes will not be stored in permanent memory.
  • Page 18 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 normally shows rate, on or oFF. prevent false counting: See section 6.15 dEFAuLt HEAVY...
  • Page 19 See section 6.27 See section 6.21 Reset to factory defaults r5Et dEF Reset value Returns the BA368E Counter to the CLr VAL Defines a preset number to which factory defaults shown in section 6.0 the total display will be set when the...
  • Page 22 Light 400µs 5µs 3 & 4 of the BA368E should be linked together. The maximum counting frequency of the BA368E 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 23 CoiL included in the configuration menu when the Proximity detector 2.1mA Pr . dEt BA368E Counter has a quadrature input A rEL b. Switch contact 1000Ω ContACt In quadrature mode the instrument will count up when the rising edge of input-b leads the rising edge of input-A.
  • Page 24 & or * BA368E is configured to count up on a rising edge. button followed by the ) button to enter the selection and return to the configuration menu.
  • Page 25 This function turns the lower display on or off. When 5CALE . t is a dividing factor adjustable between turned off, the BA368E 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 26 6.19 Timebase: t-bA5E be obtained for most applications. The timebase multiplies the rate display by 1, 60 or 3,600 depending upon whether the BA368E Counter During commissioning it is recommend that initially is required to display rate per second, per minute or the second digit is set to 0 (off) and the first digit is per hour.
  • Page 27 This allows the BA368E to be used as a the grand total display to zero from the display mode pre-set down counter.
  • Page 28 While resetting the 6.27 Security code: ‘CodE’ BA368E Counter will display - - - - - - - - before Access to the instrument configuration menu may be protected by a four digit security code which must be automatically returning to the display mode when the entered to gain access.
  • Page 29 Imax 10mA 7.2 System design The BA368E Counter pulse output is a passive The output pulse may be a duplicate of Input A or circuit i.e. not powered, but it is totally isolated from Input b for re-transmission applications, or it may be all other Counter circuits.
  • Page 30 When the total display is reset to zero or the power supply to the BA368E Counter is disconnected or turned off, any stored pulses will not be retained.
  • Page 31 7.6 Source of output pulse: 5ourCE 7.8 Output pulse width: durAtion The output pulse may be derived from: 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 Output is duplicate of input A dirECt A selected:...
  • Page 32 8. CONFIGURATION EXAMPLE Step 3 Select input count mode A BA368E Counter is required to display the position proximity detectors and speed, including direction, of a cable which is positioned so their outputs are electrically sensed by two proximity detectors mounted on a 90°...
  • Page 33 If input A pressing ). occurs before input b, a positive display will result when the BA368E is configured to count up. Step 9 Set the display timebase In this example the rate display (speed) Select uP or dn from the main menu and is required in metres per second.
  • Page 34 ) to return to the configuration menu. Step 14 Return to the display mode Following completion of configuration, return the BA368E to the display mode by pressing ). The instrument will display dAtA followed by 5AVE while the configuration changes are stored in permanent memory.
  • Page 35 28V on terminals Note: Terminals 2, 1 & 2 with If a BA368E Counter fails after it has been 6, 10 & RS2 are terminal 1 functioning correctly, the following table may help to interconnected positive.
  • Page 36 If an alarm delay 10.1 Scale card or silence time has been selected the annunciator The BA368E Counter has a window on the right will flash during the delay or silence period. hand side of the display through which a scale card...
  • Page 37 Alarm delay time dELA 10.3.3 Summary of configuration functions Adjusts the delay between the display When a BA368E Counter is supplied with alarms the equaling the setpoint and the alarm configuration menu is extended as shown in Fig 16. output being activated.
  • Page 38 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 alarm may be rate or total alarms, or one may be parameters.
  • Page 39 H5tr prompt in the alarm sub-menu. All the setpoints are adjusted in the same way, for e.g. A BA368E Counter configured to display a rate example, to adjust the setpoint of Alarm 1 which has of 0 to 5000, with a high alarm set at 4000 and been configured to operate on the rate display.
  • Page 40 FL5H In addition to the two alarm annunciators on the left Access to the two alarm setpoints from the BA368E hand side of the BA368E Counter display which Counter’s display mode is obtained by operating the show the status of both alarms, this function...
  • Page 41 200mA 10.4 Display backlight Po = 0.84W The BA368E Counter can be supplied with a factory fitted backlight that produce green illumination The maximum equivalent internal capacitance and enhancing display contrast and enabling it to be read inductance of the 4/20mA output is: at night or in poor lighting conditions.
  • Page 42 Fig 18 Application of 4/20mA output 10.5.6 Select rate or total source: 4-20tYPE The 4/20mA output current can represent the BA368E Counter’s rate or total display and this must 10.5.3 Configuration and calibration be defined before any other 4/20mA current output When a BA368E Counter is supplied with an functions are configured.
  • Page 43 10.5.8 Display which corresponds to 20mA output: 20. 0 00 The BA368E Counter display which corresponds to 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 (. to reveal the existing rate or total display with one digit flashing.
  • Page 44 Appendix 1 IECEx Certification A1.1 IECEx Certificate of Conformity The BA368E Counter has been issued with an IECEx Certificate Conformity number IECEx ITS 16.0004X which specifies the following certification code: Ex ia IIC T5 Ga -40ºC ≤ Ta ≤ +70ºC The IECEx certificate may be downloaded from www.beka.co.uk, www.iecex.com or requested from...
  • Page 45 (classified) locations without the need for Zener For installations in the USA and Canada, the barriers or galvanic isolators. BA368E Two Input Counter has ETL and cETL intrinsic safety and nonincendive approval, Control Installations must comply with BEKA associates Number 4008610.

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