BEKA BA554D Manual Download Page 1

Page: 1 / 29

Issue: 1

September 2000

BA554D

4/20mA loop-powered

field mounting

rate totaliser

Summary of Contents for BA554D

Page 1: ...Issue 1 September 2000 BA554D 4 20mA loop powered field mounting rate totaliser...

Page 2: ...centage clip off 5 15 Local reset of total display 5 16 Security code 5 17 Over and under range 6 Calibration Examples 6 1 Using an external current source 6 2 Using the internal references 7 Maintena...

Page 3: ...ter Each time a 4 20mA current is applied to the instrument initialisation is performed After a short delay the following display sequence occurs All segments of the display are activated For about 3...

Page 4: ...associated annunciators plus a flow indicator as shown on page 1 Rate Shows the flow rate on the smaller Display five digit display Total Shows the total flow since the display instrument was last re...

Page 5: ...two mounting holes are located in a separate compartment with a sealed cover allowing the instrument to be installed without exposing the display assembly Terminals 2 and 4 are internally joined and...

Page 6: ...stallation procedure 4 3 EMC The BA554D complies with the requirements of the European EMC Directive 89 336 EEC For specified immunity all wiring should be in screened twisted pairs with the screens e...

Page 7: ...is displayed on the five digit display Using the instrument s CAL or SEt functions this display may be calibrated to show the flow rate in engineering units Both the zero display at 4mA and the span d...

Page 8: ...cimal point clip off to adjust value Press or between 0 and 10 or and pressing Define Security Enter by Code to move to next digit Local reset or Fig 7B Programme Structure CLr Gtot E E E E E E E E P...

Page 9: ...arly set the required full scale display accurate 20mA input current scale display using an Similarly set the required full to move to next digit pressing or and set required zero display by With accu...

Page 10: ...ll new BA554D rate totalisers are supplied calibrated as requested at the time of ordering If calibration information is not supplied the BA554D will be set to display a rate of 0 00 with 4mA input an...

Page 11: ...n and 4 20 to display current See section 5 12 Display Description of function SCALE t Total Scale Factor Defines the arithmetic relationship between the rate and total displays May be adjusted betwee...

Page 12: ...ed press E to return to the main menu If the application requires flow rate to be the primary display i e shown on the large display the d P function enables the rate and total displays to be intercha...

Page 13: ...ing the Up and Down buttons and the P button to move to the next digit enter the password SurE Pressing E will then give access to the sub menu Note S is entered as 5 5 9 1 AC rejection FrE WARNING If...

Page 14: ...play rate display divided by Per second tb 1 1 Per minute tb 60 60 Per hour tb 3600 3600 Select the required divisor and press E to return to the main menu 5 12 Function of the P push button C P This...

Page 15: ...flow may be adjusted in one percent increments using the Up or Down buttons When set as required press the E button to enter the revised figure and return to the main programme menu 5 15 Local reset o...

Page 16: ...n using a traceable 4 20mA calibrator Section 6 2 contains an example of calibration using the instruments internal 4 and 20mA references which although not traceable are adequate for many industrial...

Page 17: ...owing decimal point are flashing i e a resolution of 0 1 Press P to move control to the rate display Using the Up or Down push button move the flashing digit to the least significant position right ha...

Page 18: ...ep 12 Reset the grand total to zero To reset the grand total to zero select CLr Gtot from the main menu and press P which will cause the instrument to display Clr no Toggle this to CLr YES using the U...

Page 19: ...respond by displaying root which is the first function in the main menu Steps Perform as described in previous 3 to 7 calibration example in section 6 1 Step 8 Calibrate the rate display Scroll throug...

Page 20: ...ble to enter the programme mode Incorrect security code entered Enter correct security code or fit security link in override position See Fig 8 7 2 Fault finding after commissioning ENSURE PLANT SAFET...

Page 21: ...still does not function it is likely that the fault is within the protection components on the terminal assembly Terminal assemblies may be exchanged on site providing the replacement includes termina...

Page 22: ...ed as high or low rate or total alarms with normally open or normally closed outputs Fig 9 illustrates the conditions available for a rate alarm and shows which are fail safe i e output is in the alar...

Page 23: ...the alarm function without changing the alarm parameters See section 8 2 3 tYPE Type of alarm Defines whether the alarm operates on the rate or total display See section 8 2 4 SPr1 Alarm setpoint 1 o...

Page 24: ...tYPE This function conditions the alarm to operate on the rate or total display Alarm 1 and Alarm 2 may both be conditioned as rate or total alarms or one may be conditioned for rate and the other fo...

Page 25: ...buttons and the P button to move to the next digit When the required hysteresis has been entered press E to return to the alarm menu e g A BA554D calibrated to display a flow of 0 to 5000 with a high...

Page 26: ...changed by operating the Up and Down push buttons and the P button to move to the next digit When the required code has been entered press E twice to return to the AcSP prompt in the Programme Menu Co...

Page 27: ...isplay backlight Reducing the supply voltage below 18V or fitting a curent limiting resistor in series with the supply will reduce the display brilliance 8 4 External push buttons For applications req...

Page 28: ...ault finding during commissioning 7 1 after commissioning 7 2 Flow indicator 2 2 Flow transmitter loops 3 1 Grand total 2 1 clear 5 3 5 10 Guarantee 7 5 HI LO 8 2 2 8 2 6 HStr 8 2 2 8 2 8 Internal ref...

Page 29: ...struction manual Namely The rate display zero can not be elevated i e 4mA input current must correspond to zero flow 1 and 1 do not flash when the rate display overranges The timebase is identified in...

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