BEKA BA377NE, Manual

Page 1: ...Issue 6 3rd July 2018 BA377NE Rugged one input Ex nA and Ex tc Timer or Clock Issue 6...

Page 2: ...n functions 6 5 3 Instrument function FunCtion 6 5 4 Input inPut 6 5 5 Input type inP tYPE 6 5 6 debounce debounce 6 5 7 Lower display di5P 2 6 5 8 Starting stopping the Timer 5tAr5toP 6 5 9 Units of...

Page 3: ...e 5YnC t 9 4 7 Control output 1 Optional oP1 9 4 8 Enable Control output 1 EnbL 9 4 9 On and off times oP 1 on 1 oP 1 off 1 oP 1 on 2 oP 1 off 2 9 4 10 Control output 2 Optional oP2 9 4 11 Enable cont...

Page 4: ...4...

Page 5: ...endixes to this manual The Ex nA and Ex tc certification of the instrument is unaffected by whether it is configured as a Timer or as a Clock 2 1 ATEX Ex nA certification Notified Body Intertek Testin...

Page 6: ...5 Input terminals The BA377NE Timer or Clock has a single pair of pulse input terminals 5 and 6 that may be configured for use with different types of sensor For sensors that require energising to de...

Page 7: ...equipment In addition to being able to be connected to other equipment in the safe area and in Zone 2 the BA377NE may also be connected to suitably protected and certified equipment located in Zone 1...

Page 8: ...ng DIN rail mounted terminals incorporating a fuse with easily removable fuses which can be extracted to achieve isolation as shown in Fig 1 Clear identification of and easy access to the means of iso...

Page 9: ...nnected to input terminals 5 6 providing the sensor and associated wiring can withstand a 500V rms insulation test to earth The BA377NE contain a configurable debounce circuit to prevent false trigger...

Page 10: ...ngle pole control outputs that may be independently configured with normally open or normally closed outputs CAUTION Control outputs should not be used for critical safety applications such as a shut...

Page 11: ...in the safe area Fig 6 Typical control output application Shown without recommended screened cables To comply with the requirements of EN 60079 14 Electrical installations design selection and erectio...

Page 12: ...s 4 2 Installation Procedure a Cut the aperture specified in Fig 7 in the panel enclosure Ensure that the edges of aperture are de burred b Inspect the Timer or Clock s captive gasket and ensure that...

Page 13: ...equested units of measurement if this information is not supplied when the instrument is ordered a blank card will be fitted A pack of self adhesive scale cards printed with common units of flow measu...

Page 14: ...asurement specified when the instrument was ordered if the units are not specified a blank scale card will be fitted A pack of scale cards pre printed with common units of measurement is available as...

Page 15: ...be accomplished via the front panel push buttons or by a remote contact A grand total time is maintained which can be viewed by operating the front panel push buttons It may be reset to zero from wit...

Page 16: ...15 Shows in succession firmware version number instrument function elap5e and any output accessories that are fitted A Dual Control Outputs Access to configuration menu 6 3 Displays when configured as...

Page 17: ...nning state to the Pause state by a stop event which could be an input or operation of the button Reset In this state the Timer is readied for operation The Timer is stopped and loaded with zero for t...

Page 18: ...ughout this manual front panel push buttons are shown as and and legends displayed by the instrument are shown in a seven segment font just as they appear on the instrument e g inPut and Clr Gtot Acce...

Page 19: ...ContACt Switch contact Energise input by linking terminals 3 4 See section 6 5 5 dEbounCE Defines the level of debounce applied to the input to prevent false functioning dEFAuLt HEAVY LiGHt See secti...

Page 20: ...the display mode to 5Et t and r5t dela See section 6 5 15 Display Summary of function uP or dn Direction of count Defines whether the Timer times down from 5Et t to zero or times up from zero to the...

Page 21: ...control output 1 See section 6 5 26 Display Summary of function CLr Gtot Resets grand total to zero This function resets the grand total which represents the total Timer run time from within the confi...

Page 22: ...ice to return to the configuration menu or repeatedly press the or button until the required type of input is displayed and then press twice to return to the configuration menu One of following six ty...

Page 23: ...at start of each period 02 11 Current Number of cycles cycle requested not shown number when cycle is continuously repeated LabEL Exactly the same as 5td but timer status i e CYCLE or dELAY is shown...

Page 24: ...24...

Page 25: ...25...

Page 26: ...transfer control to the next digit When set as required enter the selection and return to the cycl cnt prompt in the sub menu by operating the button 6 5 14 Restart delay r5t dela This sub function d...

Page 27: ...ming will start immediately Continue When power is restored the Timer will continue from where it stopped without any manual intervention To check or change the function select P fail from the configu...

Page 28: ...guration example in section 7 2 of this manual illustrates the use of the control outputs Further examples can be found in Application Guide AG374 which is available on the BEKA website 6 5 22 Control...

Page 29: ...A from the control output 1 sub menu and press which will reveal the existing delay time with one digit flashing The flashing digit can be adjusted using the or button and the button to move to the ne...

Page 30: ...git which should be set to u When 5urE has been entered pressing the button will reset all the configuration functions and return the instrument to the display mode Note r5Et dEF does not reset the gr...

Page 31: ...ch it stopped when the start button is operated Fig 15 Control of Ex nA solenoid valve in a hazardous area The required instrument configuration for this example are shown below Function Display Setti...

Page 32: ...d Contact BEKA if code is lost 8 2 Fault finding after commissioning EN 60079 17 Electrical installations inspection and maintenance permits live maintenance in Zone 2 if a risk analysis demonstrates...

Page 33: ...sociates or to our local agent for repair It is helpful if a brief description of the fault symptoms is provided 8 4 Routine maintenance The mechanical and electrical condition of the instrument shoul...

Page 34: ...nt memory Following initialisation the instrument will display a flashing display which is a request for the local time to be entered The clock will not start to function until a display time has been...

Page 35: ...ghout this manual push buttons are shown as and and legends displayed by the Clock are shown in a seven segment font as they appear on the instrument e g di5PLAY and CodE Access to the configuration m...

Page 36: ...36...

Page 37: ...rol output 1 Optional Control output 1 can turn on output closed and off output open twice in each twenty four hour period This function contains five sub function EnbL Enables output 1 and defines if...

Page 38: ...time is entered the Clock will display a flashing 00 00 00 or 00 00 for 24 hour formats or A12 00 00 or A12 00 for 12 hour formats To adjust the clock set time select 5Et from the configuration menu...

Page 39: ...n entered return to the configuration menu by pressing the button twice 9 4 10 Control output 2 Optional oP2 Control output 2 is an optional factory fitted output which can be configured to turn on ou...

Page 40: ...the display mode may be protected by a four digit alphanumeric security code which must be entered to gain access Default security code 0000 allows unrestricted access With ACCd displayed press to en...

Page 41: ...will then change the instrument to a Clock and return the display to FunCtion in the configuration menu Step 3 Select display format Using the or button select di5PLAY in the configuration menu and p...

Page 42: ...cess to the configuration menu Using the and buttons select CodE from the configuration menu and press which will reveal 0000 with the first digit flashing This example requires the security code to b...

Page 43: ...Zone 2 if a risk analysis demonstrates that this does not introduce an unacceptable risk The removal of covers opening of Ex n enclosure is permitted if this can be done without contaminating the int...

Page 44: ...ncy should be chosen to suit the environmental conditions 11 5 Guarantee Instruments which fail within the guarantee period should be returned to BEKA associates or our local agent It is helpful if a...

Page 45: ...A1 2 Special conditions for safe use in dust atmospheres The BA377NE ATEX Type Examination Certificate has an X suffix to show that special conditions for safe use are specified by the BA377NE Ex ic t...

Page 46: ...nd both refer to equivalent standards Therefore the ATEX installation requirements specified in the main sections and in Appendix 1 of this manual also apply for IECEx installations but the local code...

Page 47: ...fety parameters are the same as the ATEX and IECEx parameters the systems shown in sections 2 3 4 of this manual may therefore also be used for US and Canadian installations subject to compliance with...