BEKA BA558C Manual
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BEKA BA558C Manual

4/20ma loop powered panel mounting rate totaliser
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Total
display
Rotating flow
indicator
4/20mA loop powered
panel mounting
rate totaliser
Annunciators for
optional alarms
BA558C
issue 3
Label
Rate
display
Issue:
3
st
1
October 2010

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Summary of Contents for BEKA BA558C

  • Page 1 BA558C 4/20mA loop powered panel mounting rate totaliser issue 3 Label Total display Rate display Rotating flow Annunciators for indicator optional alarms Issue: October 2010...

  • Page 2: Table Of Contents

    5.12 Function of the P push-button 9. Index 5.13 Total scale factor 5.14 Percentage clip-off 5.15 Local reset of total display 5.16 Security code 5.17 Over and under-range The BA558C is CE marked to show compliance with the European EMC Directive 2004/108/EC...

  • Page 3: Description

    4/20mA flow loop. No additional power supply or battery is required. Housed in a robust 72 x 144 panel mounting DIN enclosure, the BA558C has an IP65 front panel and is supplied with a gasket to seal the joint between the instrument and the panel.

  • Page 4: Displays

    Selectable function from programme menu. See section 6.15 3.2 Remote indication The BA558C rate totaliser may be driven from any 4/20mA signal to provide a remote indication of 2.2 Displays rate and flow. Fig 3 shows a typical application in...

  • Page 5: Reset Terminals

    3.3 Reset terminals slightly below the centre line of the instrument. For The BA558C total display may be reset to zero by reflective displays there is little degradation of connecting a switch between reset terminals RS1 contrast when viewed from above the centre line, and RS2 as shown in Fig 3.

  • Page 6: Installation Procedure

    4.2 Installation Procedure 4.3 EMC The BA558C complies with the requirements of the a. Insert the BA558C into the instrument panel European EMC Directive 2001/108/EEC. cut-out from the front of the panel. specified immunity all wiring should be in earthed screened twisted pairs.

  • Page 7: Programming And Calibration

    5. PROGRAMMING & CALIBRATION For example, if a BA558C is displaying rate in litres The BA558C is programmed and calibrated via per minute, setting 'SCALE-t' to 4.5461 produces a four front panel push-buttons. All the programming total display in UK gallons. Alternatively, setting functions are contained in an easy to use menu 'SCALE-t' to 4546.1 will produce a total display in...

  • Page 8: Summary Of Programmable Functions

    5.2 Accessing programming functions 5.3 Summary of programmable functions Throughout this manual push-buttons are shown in This section summarises all of the BA558C italics e.g. P or Up push-button, and legends programmable functions. When read with Figs 7A displayed by the instrument are shown within and 7B it provides a quick aid for calibrating the inverted commas e.g.

  • Page 9: Calibration Of Rate Display Using Internal References

    Display Description of function Display Description of function 'SEt' Calibration of rate display 'SCALE-t' Total Scale Factor using internal references. Defines arithmetic relationship Enables the zero and span of the rate between the rate and total displays. display to be adjusted without the need May be adjusted between 0.0001 and for an accurate input...
  • Page 12 4/20mA output. The root extractor linearises the between the two displays. When both decimal flow signal and enables the BA558C to display flow points have been correctly positioned press E to and total in linear units. return to the main menu.

  • Page 13: Conditioning Sub-Menu

    When the least significant digit has been adjusted, press E to The BA558C contains two references representing return to the 'ZErO' prompt which completes the 4 and 20mA. These are used in the 'SEt' function adjustment.

  • Page 14: Function Of The P Push-Button

    This parameter defines the function of the P push- counter select 'CLr. Gtot' and press P which will button when the BA558C is in the display mode. cause the instrument to display 'Clr. no' with 'no' Either the input current in milliamps or the input as flashing.

  • Page 15: Percentage Clip-Off

    5.15 Local reset of total display: thousand of UK gallons LOC. rSET When turned on this function enables the operator 1 litre 1 litre to reset the BA558C total display to zero by 1 gallon 1/(4546.1) litres operating Down push-buttons simultaneously.

  • Page 16: Over And Under-Range

    20mA at a flow of 1100 litres / minute. BA558C is required to display flow in litres per minute and total flow in cubic metres with a resolution of 0.1 cubic metres.
  • Page 17 Step 3 Turn square root extractor off Press P to move control to the rate display. With 'root' displayed, press P which will Using the Up or Down push-button move reveal the root extractor status. The root the flashing digit to the least significant extractor can be turned on or off by position (right hand side) which will result operating the Up or Down buttons.
  • Page 18 E. All the When 'SCALE-t' has been set to 1000.0 BA558C programming functions will now press E to return to the main menu. be stored in permanent memory and protected from accidental adjustment by the security code.

  • Page 19: Using The Internal References

    6.2 Calibration example Using the internal references In this example the internal references within the BA558C are used to calibrate the rate display. Except for steps 1, 2 and 8 the procedure is identical to that in the previous example in section...

  • Page 20: Maintenance

    We recommend that STARTING MAINTENANCE initially instrument calibration should be checked annually. If a BA558C fails after it has been functioning correctly, the following table may help to identify 7.5 Guarantee the cause of the failure. Instruments which fail within the guarantee period should be returned to BEKA associates or our local agent.

  • Page 21: Accessories

    8. ACCESSORIES 8.1 Scale card The BA558C has a window on the right hand side of the display to hold a card showing the units of measurements e.g. Litres, Gallons, Instruments can be supplied with a printed scale card showing any units specified at the time of ordering.

  • Page 22: Programming And Adjustment

    See section 8.3.7 8.3.2 Programming and adjustment When a BA558C is supplied with alarms the main 'HStr' Hysteresis programme menu is extended as shown in Fig 12. Adjusts the alarm hysteresis.
  • Page 23 Fig 12 Alarm programme menu 8.3.3 Alarm enable: EnbL 8.3.4 Type of alarm: tYPE This function allows the alarm to be enabled or This function conditions the alarm to operate on disabled without altering any of the alarm the rate or total display. Alarm 1 and Alarm 2 may parameters.
  • Page 24 8.3.5 Setpoint adjustment: e.g. A BA558C calibrated to display a flow of 0 to SPx1 and SPx2 5000, with a high alarm set at 4000 and hysteresis The rate alarm setpoints SPr1 and SPr2 may be of 100 will perform as follows:...

  • Page 25: Adjusting Alarm Setpoints From Display Mode

    Fig 13. If the setpoints are not protected by a BA558C may be returned to the display mode by security code the alarm setpoint prompt 'SPr1' or pressing E again.

  • Page 26: Display Backlight

    8.5 Additional front panel protection Although the BA558C has an IP65 sealed front panel, for installations in hostile environments where the instrument is likely to be damaged by impact an additional front cover is available.

  • Page 27: Index

    INDEX Subject Section Subject Section AC rejection ‘FrE’ 5.9.1 Internal references 5.3; 5.9.2 ‘AcSP’ 8.3.2; 8.3.11 Installation Alarms optional access ‘AcSP’ 8.3.2; 8.3.11 contacts ‘no.nc’ 8.3.2; 8.3.7 ‘LOC.rSEt’ 5.15 delay time ‘dELA’ 8.3.2; 8.3.9 Location enable ‘EnbL’ 8.3.2; 8.3.3 function ‘HI.LO’ 8.3.2;...

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