BEKA BA527C Manual Download Page 1

Page: 1 / 22

Issue: 3

5th March 2009

BA527C & BA528C

loop-powered

4½ digit panel

mounting indicators

Issue 3

Summary of Contents for BA527C

Page 1: ...Issue 3 5th March 2009 BA527C BA528C loop powered 4 digit panel mounting indicators Issue 3...

Page 2: ...urce 6 2 Using the internal calibrator 7 Maintenance 7 1 Fault finding during commissioning 7 2 Fault finding after commissioning 7 3 Servicing 7 4 Routine maintenance 7 5 Guarantee 7 6 Customer comme...

Page 3: ...o the 4 20mA input current provides the input signal for the analogue to digital converter Fig 1 Simplified block diagram Each time a 4 20mA current is applied to the instrument initialisation is perf...

Page 4: ...any 4 20mA signal to provide a remote indication Fig 3 shows a typical application in which the output from a gas analyser drives a BA527C or BA528C indicator Again it is necessary to ensure that the...

Page 5: ...trument and tighten until the indicator is secure as shown in Fig 5 Four clips are required to achieve an IP65 between a BA528C and the instrument panel Fig 4B BA528C dimensions c Connect the panel wi...

Page 6: ...this manual push buttons are shown in italics e g P or Up push button and legends displayed by the indicator are shown within inverted commas e g CAL and ALr2 Access to the programme menu is obtained...

Page 7: ...0mA loop See section 5 6 Display Description of function Cond Indicator conditioning This function provides access to a sub menu enabling the internal references to be calibrated and the mains line fr...

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Page 9: ...adjusted press E to enter the new zero The indicator will display Ent for a few seconds while the information is being stored in memory and will then return to the ZErO prompt To adjust the display at...

Page 10: ...alibrator to 20 000mA and again press P The indicator will display Ent when the 20mA reference has been updated and will then return to the 020A prompt Two operations of the E button will return the i...

Page 11: ...requency of the mains supply is 50Hz and the existing security code is 1209 In the operating mode the indicator is required to display the input current as a percentage of span when the P push button...

Page 12: ...ain menu Step 8 Return to the display mode Return to the display mode by pressing E 6 2 Using the internal calibrator As in 6 1 the BA527C is required to display 50 0 with a 4mA input 1050 0 with a 20...

Page 13: ...ing If a BA527C or BA528C fails to function during commissioning the following procedure should be followed Symptom Cause Solution No display Incorrect There should be 1V wiring between terminals 1 3...

Page 14: ...d 7 6 Customer comments BEKA associates is always pleased to receive comments from customers about our products and services All communications are acknowledged and whenever possible suggestions are i...

Page 15: ...application of alarms Summary of programmable alarm functions Display Description of function EnbL Alarm enable Enables or disables the alarm function without changing the alarm parameters See section...

Page 16: ...y pressing the Up or Down button followed by the E button to return to the alarm menu 8 3 7 Hysteresis HStr During programming hysteresis is shown in the units the indicator has been calibrated to dis...

Page 17: ...security code allowing direct access to the setpoints by pressing the P and Up buttons simultaneously New instruments with alarms are supplied with this function disabled and the security code set to...

Page 18: ...18 Fig 12 Alarm programme menu...

Page 19: ...these functions the indicator initially displays the current break point and the total number of break points being used e g 5 13 current total number of break point break points Add Add a break point...

Page 20: ...ak points Each subsequent operation of the P push button will introduce an additional break point When adding a break point to a calibrated indicator the insertion position can be selected using the U...

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Page 22: ...tivated The tare function allows an operator to quickly zero the indicator display at any input current so that subsequent readings only show the change in input since the P push button was operated W...