BEKA BA364ND Manual
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BEKA BA364ND Manual

Type nl certified externally powered field mounting counter, timer, tachometer and clock
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BA364ND
Type nL certified
externally powered
field mounting
counter, timer,
tachometer and clock
Issue 6
Issue:
6
th
4
March 2014

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Summary of Contents for BEKA BA364ND

  • Page 1 BA364ND Type nL certified externally powered field mounting counter, timer, tachometer and clock Issue 6 Issue: March 2014...
  • Page 2 Use as a Clock Please read section 1 plus the section describing the function that you wish to use. The BA364ND is CE marked to show compliance with the European Explosive Atmospheres Directive 94/9/EC and the European EMC Directive 2004/108EC...
  • Page 3 1 COMMON FEATURES The BA364ND is a multifunction Ex nL certified, field mounting instrument that programmed on-site counter, timer, tachometer or as a clock. The BA364ND has been issued with a Certificate Conformity BS50021:1999. Type protection ‘n’ by Intertek Testing Sevices (ITS).
  • Page 4 1.4.3 Power supply When programmed as a digital clock the The BA364ND certificate specifies the maximum BA364ND will display local time within a Zone 2 input parameters for the power supply terminals 7 hazardous area. The two optional solid state and 8.
  • Page 5 1.4.6 Zones, gas groups and T rating This allows the BA364ND to be installed in Zone The BA364ND has been certified as Group II, 2 hazardous areas (low risk) and to be used with Category 3 G apparatus as defined in the ATEX most common industrial gases.
  • Page 6 1.5 INSTALLATION 1.5.1 Location The BA364ND is housed in a robust IP66 glass reinforced polyester (GRP) enclosure incorporating an armoured glass window and stainless steel fittings. It is suitable for exterior mounting most industrial environments, including offshore and waste water treatment installations.
  • Page 7 Instruments which fail within the guarantee period security code can then be viewed by selecting should be returned to BEKA associates or our 'COdE' from the main menu and pressing P. local agent. It is helpful if a brief description of the fault symptoms is provided.
  • Page 8 WARNING supplied by BEKA associates. These control outputs should not be used for critical safety applications The BA364ND can also be supplied with a blank such as an emergency shut down or custom engraved stainless steel plate secured system. by two screws to the side of the instrument enclosure.
  • Page 9 Note: The 4/20mA current output is not available 30CV dc and the maximum current is not greater when the BA364ND is programmed as a timer or than 100mA dc. as a clock. 1.9.6 Optional pulse output 1.9.7.1 Ex nL certification...
  • Page 10 1.9.8 Optional display backlight The BA364ND can be supplied with LED backlighting to improve display contrast when the instrument is installed in a poorly illuminated area. The backlight is segregated from the measuring circuit and has been certified as a separate Ex nL circuit.
  • Page 11 Section 2 Use as a Counter Description Optional 4/20mA output 2.1.1 Initialisation & loss of power 2.5.1 Programming & adjustment 2.1.2 Controls 2.1.3 Displays Optional pulse output 2.6.1 Programming & adjustment System 2.2.1 Power supply Calibration example 2.2.2 Input 2.2.3 Resetting the total display Maintenance 2.2.4...
  • Page 12 –99999 to 999999. 2.1.1 Initialisation and loss of power May be turned off – see 2.3.7 When power is applied to a BA364ND counter, following initialisation the instrument will start Reset Activated while total display is...
  • Page 13 2.2 System 2.2.2 Inputs The basic system used for all BA364ND When the BA364ND is programmed as a counter hazardous area counter installations is shown in both input A and input B are operational and may Fig 2.1 Ex nL certification requirements are...
  • Page 14 ‘SurE’ has operating push-buttons to be entered to confirm the simultaneously. If the BA364ND is not protected instruction by a security code the first parameter ‘Function’ Select ‘CountEr’ to enable the will be displayed. If a security code other than counter functions.
  • Page 15 Defines a pre-set number to which between the number of input the display will be set when the pulses total display. BA364ND is locally or remotely Dividing factor adjustable between reset. Allows the instrument to 0.001 and 99999999. count down from a preset number.
  • Page 17 Finally, pressing E will execute the function at the two inputs and the resulting display when change to a counter and return the display to the the BA364ND is programmed to count on a rising 'Function' prompt in the main menu. edge.
  • Page 18 Proximity detector Low to high current 2.3.6 Position of the decimal point(s): ‘d.P.’ The BA364ND total display has eight digits. The SCALE-t = decimal point may be positioned between any of the seven least significant digits, or it may be To check or change the scale factor select omitted.
  • Page 19 If the BA364ND is required to display a rate of 1 unit per hour when 3 pulses are received per second: SCALE-r = (Number of input pulses/s) x (Timebase)
  • Page 20 The grand total is a separate eight digit counter increment or decrement the display. i.e. whether which duplicates the total display, but is not Input A of the BA364ND is an up-counter or a cleared when the total display is reset. down-counter.
  • Page 21 Description of function 2.4.1 Programming and adjustment 'dELA' Alarm delay time The BA364ND can be supplied with two solid Adjusts the delay between the state single pole alarm outputs which may be display equalling the setpoint and independently programmed as high or low, total the alarm output being activated.
  • Page 23 The alarm output may be open or closed in the When the alarm silence time is set to any figure non-alarm condition. When the BA364ND power other than zero, the P push-button becomes an supply is turned off or disconnected, both the...
  • Page 24 When an alarm is silenced the New instruments with alarms are supplied with BA364ND front panel alarm annunciator will flash the security code set to 0000 until the silence time expires. To adjust the silence time select 'SIL' from the 2.4.11 Adjusting alarm setpoints from the...
  • Page 25 2.5 OPTIONAL 4/20mA OUTPUT instruments will produce a linear output between The BA364ND can be supplied with an optional 3.5 and 22mA. 4/20mA output which may be programmed to produce an analogue output proportional to the whole or part of the total or rate display.
  • Page 26 If the two pulse output functions are set such that there is not enough time for the BA364ND to output the required number of pulses in real time, they will be stored and output as quickly as possible.
  • Page 27 2.7 CALIBRATION EXAMPLE is displayed; press P to reveal the A BA364ND is required to display the position existing setting. Using the Up or and speed, including direction, of a cable which is Down buttons select ‘Pr.dEt’, the input sensed by two proximity detectors mounted on a...
  • Page 28 with one digit plus the following Down buttons simultaneously will then decimal point in the total display fix the decimal point in front of the flashing. Press the Up or Down least significant digit. button until second least significant digit and following decimal Using the Up and Down buttons to point are flashing.
  • Page 29 If input A All the programming functions will occurs before input B, a positive now be stored in permanent memory display will result when the BA364ND and will be protected from accidental is programmed to count up. or unauthorised adjustment by the security code.
  • Page 30 Total display Incorrect That instrument not counting programming has been If a BA364ND counter fails after it has been or input wiring programmed for the transducer(s) functioning correctly, the following table may help in use, and that to identify the cause of the failure.
  • Page 31 2.9 INDEX FOR COUNTER SECTION Subject Section Subject Section ATEX intrinsic safety certification 1.4.2 Rate Display filter 2.3.10 Alarms optional Scale factor 2.3.9 Access setpoint 2.4.10 Reset Delay 2.4.8 Grand total 2.3.15 Enable 2.4.2 Total display 2.2.3; 2.3.14 Function 2.4.5 Value 2.3.13 Hysteresis...

  • Page 33: Table Of Contents

    Section 3 Use as a Timer Description Applications 3.1.1 Initialisation & loss of power 3.1.2 Controls Maintenance 3.1.3 Displays 3.6.1 Fault finding during commissioning. 3.6.2 Fault finding after commissioning. System 3.2.1 Power supply Index for Timer section 3.2.2 Inputs 3.2.3 Resetting the timer 3.2.4 Options...

  • Page 34: Description

    3.1 DESCRIPTION Description of Switch Functions When programmed as a timer the BA364ND may be used to measure and display the elapsed time Down+Up Resets the timer to zero or to between external events, or to control external the set time setpoint (‘SEt t) events via the two optional control outputs.

  • Page 35: System

    30V, but greater than 10V 3.2.4 Options which is the minimum operating voltage of the When the BA364ND is configured as a timer, two BA364ND. optional control outputs may be used. The Ex...
  • Page 36 ‘SurE’ has operating push-buttons to be entered to confirm the simultaneously. If the BA364ND is not protected instruction by a security code the first parameter ‘Function’ Select ‘ELAPSE’ to enable the will be displayed. If a security code other than timer functions.
  • Page 37 Display Description of function Display Description of function ‘AcSEt t’ Access Set Time 'COdE' Security code Sub-menu that enables the timer Defines a four digit numeric code setpoint ‘Set t’ to be adjusted which must be entered to gain from the display mode. access to the programmable separate security code prevents functions.
  • Page 39 3.3.2 Function of instrument: ‘Function’ When the required type of input has been This is the first parameter in the programme selected press E to enter the selection and return menu which conditions the instrument as a to the ‘InPut A’ or ‘InPut b’ prompt in the main counter, timer, tachometer or as a clock.

  • Page 40: Lower Display (Set Time)

    3.3.8 Direction of count: ‘uP or dn’ programmed to display just hours and minutes, The BA364ND timer will time up from zero to the (see 3.5.5) the instrument continues to operate set time setpoint (‘SEt t’), or down from the set with a resolution of one second.

  • Page 41: Continue Cycle

    3.3.13 Security code: ‘CodE’ To check or change the status of this function The calibration and conditioning of the BA364ND select 'ContinuE' from the main menu and press may be protected by a four digit security code P which will reveal the current setting.

  • Page 42: Optional Control Outputs

    3.4 OPTIONAL CONTROL OUTPUTS 3.4.1 Programming and adjustment The BA364ND timer can be supplied with two solid state, single pole control outputs. These may be independently programmed to open and close when various timer functions occur. See section 1.9.5 for details.

  • Page 43: Control Output Off At

    BEKA engineers will be reset or the elapsed time equals the programmed pleased to help with the design of your BA364ND set time. To define when a control output opens timing system be it a simple manually controlled select ‘OP1:OFF’...
  • Page 44 Note: When the elapsed time (T1+T2) equals the set time SEt t, an internal stop signal is automatically generated which stops the timer and opens control output 1. Fig 3.5 Control of valve in a hazardous area The required programme parameters to achieve this are shown below, others, such as whether the second display is activated, are not critical.
  • Page 45 BA364ND Timing cycle Incorrect That instrument If a BA364ND timer fails after it has been will not start programming has been functioning correctly, the following table may help Elapsed or or input wiring. programmed as a...
  • Page 46 3.7 INDEX FOR TIMER SECTION Subject Section Subject Section ATEX intrinsic safety certification 1.4.2 Reset Grand total 3.3.12 Backlight optional 1.9.8 Timer 3.2.3; 3.3.11 Calibration 3.3; Fig 3.2 Security Controls 3.1.2 Code 3.3.13 Control outputs optional Override link 1.6.1 Delay 3.4.5 Servicing Enable...
  • Page 47 Section 4 Use as a Tachometer Description Optional 4/20mA output 4.1.1 Initialisation & loss of power 4.5.1 Programming & adjustment 4.1.2 Controls 4.1.3 Displays Calibration example System Maintenance 4.2.1 Power supply 4.7.1 Fault finding during commissioning. 4.2.2 Input 4.7.2 Fault finding after commissioning. 4.2.3 Resetting the run-time display 4.2.4...

  • Page 48: Description

    4.1 DESCRIPTION Note: When optional alarms are fitted, the When programmed tachometer BA364ND may be programmed to provide direct BA364ND will display rotational speed access to the alarm setpoints from the display revolutions per second, minute or hour. Linear mode by operating the P + Up push-buttons.

  • Page 49: System

    4.2.1 Power supply directly connected to the input terminals. A BA364ND must be powered from the safe area. To comply with certification requirements the maximum supply voltage in normal operation 4.2.3 Resetting the run-time display...

  • Page 50: Programming

    Access to the programme menu is obtained by operating push-buttons simultaneously. If the BA364ND is not protected by a security code the first parameter ‘Function’ will be displayed. If a security code other than the default code 0000 has already been entered, the instrument will display 'COdE'.
  • Page 51 Adjustable digital filter to reduce ‘Function’ Function of instrument noise speed display. Enables the BA364ND to be Adjustable between 0 and 99. conditioned as a counter, timer, See section 4.3.8 tachometer or clock. After making the selection ‘SurE’ has to be entered to confirm the instruction ‘CLIP-OFF’...
  • Page 53 4.3.4 Position of the decimal point: ‘d.P.’ The BA364ND speed display has six digits and To define the function of the instrument select the decimal point may be positioned between any ‘Function’...
  • Page 54 changed by pressing the Up or Down buttons. When this digit is correct pressing P will transfer Second Magnitude of step digit change which will control to the next digit. produce a rapid response To position the decimal point in the scale factor, move the flashing digit to the left hand side of the required decimal...
  • Page 55 4.3.12 Security code: ‘CodE’ clip-off will automatically be reset to zero. The calibration and conditioning of the BA364ND required, a new clip-off threshold must then be may be protected by a four digit security code entered.
  • Page 56 Description of function 4.4.1 Programming and adjustment 'dELA' Alarm delay time The BA364ND can be supplied with two solid Adjusts the delay between the state single pole alarm outputs which may be display equalling the setpoint and independently programmed as high or low, speed the alarm output being activated.
  • Page 58 When the alarm silence time is set to any figure The alarm output may be open or closed in the other than zero, the P push-button becomes an non-alarm condition. When the BA364ND power alarm accept button. supply is turned off or disconnected, both the...
  • Page 59 BA364ND front panel alarm annunciator will flash the security code set to 0000 until the silence time expires. To adjust the silence time select 'SIL' from the 4.4.11 Adjusting alarm setpoints from the alarm menu and press P which will reveal the display mode existing time.
  • Page 60 - see section 4.4.10 4.5 OPTIONAL 4/20mA OUTPUT The BA364ND can be supplied with an optional 4/20mA output which may be programmed to produce an analogue output proportional to the whole or part of the speed display.
  • Page 61 4.6 CALIBRATION EXAMPLE Step 4 Position of decimal point A BA364ND is required to display the speed of a In this example the BA364ND is rotating shaft in revolutions per minute with a displaying rotary speed resolution of 1rpm. The speed sensor is a display decimal point is required.
  • Page 62 Following completion of programming exceeds 5rpm. Select ‘CLIP-OFF’ and calibration, return the BA364ND from the main menu and press P to the display mode by pressing E. which will show the current value with All the programming functions will one digit flashing.
  • Page 63 If this procedure does not reveal the cause of the with terminal 3 fault, it is recommended that the instrument is positive. No run-time Run-time Programming returned to BEKA or to our agent in your area for display display not see 4.3.5 repair. switched on. Run-time...
  • Page 64 4.8 INDEX FOR TACHOMETER SECTION Subject Section Subject Section ATEX intrinsic safety certification 1.4.2 Rotational scale factor 4.3.6 Alarms optional 4.4; 4.2.4 Run time Access setpoint 4.4.10 Resetting 4.2.3; 4.3.10 Delay 4.4.8 Resetting grand total 4.3.11 Enable 4.4.2 Function 4.4.5 Security Hysteresis 4.4.7...
  • Page 65 Section 5 Use as a clock CONTENTS Description 5.1.1 Initialisation & loss of power 5.1.2 Controls 5.1.3 Displays System 5.2.1 Power supply 5.2.2 Synchronisation 5.2.3 Optional control outputs Programming 5.3.1 Accessing programme functions. 5.3.2 Function of instrument 5.3.3 Display format and units 5.3.4 Set display time 5.3.5...

  • Page 66: Description

    5.1 DESCRIPTION 5.1.3 Displays When programmed as a clock the BA364ND will The BA364ND clock has a single digital display display local time in twelve or in twenty four hour and annunciators. format. Hours and minutes, or hours, minutes and seconds may be displayed.

  • Page 67: Synchronisation

    5.3 PROGRAMMING When terminals 7 & 8 are connected together Throughout this manual push-buttons are shown the time displayed by the BA364ND will be set to in italics e.g. P or Up push-button, and legends the preprogrammed reset time. The clock...

  • Page 68: Display Format And Units

    See section 5.3.8 ‘rSEt t’ Set reset time Enables the reset time to be 'AcSP' Access setpoint * adjusted so that the BA364ND can Sub-menu that enables direct be synchronised with an external access to the alarm setpoints from master clock.

  • Page 70: Set Display Time

    Tachometer ‘ELAPSE’ Timer 5.3.5 Set reset time: ‘rSEt t’ This function enables the BA364ND reset time to When ‘CLOC’ is displayed, press P which will be adjusted. When terminals 7 & 8 are result in ‘Set.nO’ being displayed. To proceed...

  • Page 71: Security Code

    If 'OFF' is selected, the operator will not have Display Control output direct access to the setpoints when the BA364ND ’OFF’ Control output disabled clock is displaying time. Return to the 'AcSP' ‘On:1’ Turns on & off once per 24 hours prompt in the main menu by pressing E twice.

  • Page 72: Adjust Control Output Setpoints

    To prevent accidental adjustment the instrument programme menu is to be protected by security code 1112 When the synchronising contact is closed the BA364ND will display the programmed reset time, in this application 12:00. When the contacts open the clock will start running from the reset time.

  • Page 73: Calibration

    Step 1 Enter the programming mode programme functions. Select 'COdE' Put the BA364ND in the programming from the main menu and press P mode by simultaneously pressing P which will reveal the existing security and E. Assuming a security code has code.

  • Page 74: Maintenance

    If this procedure does not reveal the cause of the fault, it is recommended that the instrument is returned to BEKA or to our agent in your area for repair.

  • Page 75: Index For Clock Section

    5.6 INDEX FOR CLOCK SECTION Subject Section Backlight optional 1.9.8 Controls 5.1.2 Control outputs optional 5.2.3 Enable 5.3.7 Ex nL certification 1.9.5.2 Setpoint times 5.3.8 When displaying time 5.3.10 Solid state outputs 1.9.5.1 Display 5.1.3 Format & units 5.3.3 Set time 5.3.4 Ex nL certification Function of instrument...

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