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Issue: 7

9

th

July 2019

BA317NE

Rugged one input

Ex nA and Ex tc

Tachometer

Issue 7

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2
3
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Summary of Contents for BA317NE

Page 1: ...Issue 7 9th July 2019 BA317NE Rugged one input Ex nA and Ex tc Tachometer Issue 7...

Page 2: ...tion functions 6 4 Input inPut 6 5 Input type inP tYPE 6 6 Debounce dEbouncE 6 7 Display update interval uPdAtE 6 8 Run time display di5P 2 6 9 Position of the decimal points dP 6 10 Speed scale facto...

Page 3: ...Adjusting alarm setpoints from display mode 9 5 Pulse Output 9 5 1 Ex nA certification 9 5 2 Pulse output configuration 9 5 3 Enable pulse output EnbL 9 5 4 Source of output pulse 5ourCE 9 5 5 Divide...

Page 4: ...4...

Page 5: ...n Appendix 2 For applications in the USA and Canada the BA317NE has ETL and cETL certification which is described in Appendix 3 2 OPERATION Fig 1 shows a simplified block diagram of the BA317NE Tachom...

Page 6: ...displays and associated annunciators plus a pulse input indicator as shown on front cover of this manual Speed On upper eight digit display display Run time On lower six digit display display Shows t...

Page 7: ...or an external Zener barrier or galvanic isolator as shown on the Type Examination Certificate This allows the Tachometer to be adjusted and configured live when installed in a Ex n panel enclosure lo...

Page 8: ...BA317NE Certification information label 4 SYSTEM DESIGN FOR HAZARDOUS AREAS When correctly installed in Zone 2 the BA317NE Totaliser may be connected to almost any apparatus in the safe area and to Ex...

Page 9: ...ation is essential for their effective use It is also necessary to ensure that the maintenance procedure makes sure that unauthorised re closure of the switches does not occur It is not considered nec...

Page 10: ...A317NE contains a configurable debounce circuit to prevent false triggering See section 6 7 4 2 5 Magnetic pick off input Magnetic pick off speed sensors usually have a low level ac voltage output whi...

Page 11: ...osure Ensure that the edges of aperture are de burred b Inspect the Tachometer s captive gasket and ensure that it is not damaged before inserting it into the panel enclosure aperture c If the enclosu...

Page 12: ...showing the requested 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...

Page 13: ...factor that determines whether the Tachometer displays speed per second per minute or per hour The Tachometer incorporates a run time clock that displays the time in hours that the speed of the monito...

Page 14: ...on or oFF See section 6 8 Display Summary of function dP Decimal points Defines the position of the decimal point in the Tachometer speed display See section 6 9 5CALE 5 Speed scale factor 5CALE 5 is...

Page 15: ...6 Display Summary of function CLr Gtot Resets grand total run time to zero This function resets the grand total run time to zero from within the configuration menu when CLr YE5 is selected and 5urE is...

Page 16: ...16...

Page 17: ...17...

Page 18: ...ch as those resulting from a mechanical contact closing and bouncing Three levels of protection may be selected and the amount of debounce applied depends upon the type of Tachometer input that has be...

Page 19: ...g shaft generates 18 pulses per revolution to produce a Tachometer speed display in revolutions 5CALE 5 should be set to 18 0 The units of the Tachometer speed display are pulses per unit of time The...

Page 20: ...sed it is not necessary to enter a clip off value see 6 8 To check or change the clip off threshold select CLP oFF from the configuration menu and press which will reveal the current setting The thres...

Page 21: ...is displayed and then press which will result in a 0000 prompt being displayed with the first digit flashing This is a request for the instruction to be confirmed by entering 5urE using the or button...

Page 22: ...al between display updates Using the or button select uPdAtE in the configuration menu and press to reveal how frequently the Tachometer display is updated Using the or push button select 0 5 0 5 seco...

Page 23: ...h buttons The button will transfer control to the second digit which controls the step response and should be set to 0 in the same way Finally enter the selection and return to the FiLtEr prompt in th...

Page 24: ...s unauthorised access to the configuration menu Using the or button select CodE from the configuration menu and press which will reveal 0000 with the first digit flashing This example requires the sec...

Page 25: ...ng calibration change Re enable both alarms 8 2 Fault finding after commissioning BS EN 60079 17 Electrical installations inspection and maintenance permits live maintenance in Zone 2 if a risk analys...

Page 26: ...output 2 or Isolated dual alarms 2 Notes 1 Internally powered 2 Only one of the three output options can be fitted to a BA317NE Tachometer 9 1 Scale card The BA317NE has a window on the right hand sid...

Page 27: ...ons such as a shut down system When the BA317NE Tachometer power supply is turned off or disconnected the alarm outputs will open irrespective of whether normally open or normally closed outputs have...

Page 28: ...ve use It is also necessary to ensure that the maintenance procedure makes sure that unauthorised re closure of the switches does not occur It is not considered necessary to have a means of isolation...

Page 29: ...ust therefore be reconfigured before use 9 4 6 Setpoint adjustment 5P1 x 5P2 x The speed alarm setpoints 5P1 5peed and 5P2 5peed may be positioned anywhere between 0000000 and 9999999 and the run time...

Page 30: ...30...

Page 31: ...the configured alarm silence time When an alarm is silenced the alarm annunciator will flash until the silence time expires To adjust the alarm silence time select 5iL using the or push button in the...

Page 32: ...digit using the or buttons to adjust the flashing digit and the push button to move control to the next digit If the correct code is entered pressing will then cause alarm setpoint prompt 5P1 5peed o...

Page 33: ...ned The retransmitted RTx annunciator on the instrument display shows the status of the retransmitted pulse output Annunciator activation depends upon the setting of 5ource in the pulse output configu...

Page 34: ...e standard 9 5 2 Pulse output configuration PuL5E oP When the BA317NE Tachometer is supplied with a factory fitted pulse output the configuration menu is extended as shown in Fig 18 to include the pul...

Page 35: ...changed by pressing the or push button followed by the button to return to 5ourCE prompt 9 5 5 Divide output pulse frequency diVidE When 5CALEd is selected in the 5ourCE function described in section...

Page 36: ...20mA output to be connected to any dc circuit providing that in normal operation the maximum supply voltage is not greater than 30V dc Providing that the BA317NE Tachometer is correctly installed in a...

Page 37: ...ponds to a 4 000mA output current is defined by this function Using the or push button select 4 000 in the 4 20mA output sub menu and press to reveal the existing speed display with one digit flashing...

Page 38: ...afe use in dust atmospheres The BA317NE ATEX Type Examination Certificate has an X suffix to show that special conditions for safe use are specified by the BA317NE Ex ic tc certificate indicated by th...

Page 39: ...for an external Zener barrier or galvanic isolator as shown on the IECEx Certificate This allows the Tachometer to be adjusted and configured live when installed in a Ex n panel enclosure located in...

Page 40: ...parameters the systems shown in sections 3 4 and 5 of this manual may therefore also be used for US and Canadian installations subject to complying with local codes of practice ETL and cETL codes CL...

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