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10

Display

Description of function

'LOC.rSEt'Local reset of total display

When turned 'On' the total display
may be reset to zero from the display
mode by simultaneously operating
the

 Up

 and 

Down

 push-buttons for

more than two seconds.
See section 5.13

'CLr. Gtot' Clear grand total

This function resets the grand total to
zero when 'CLr YES' is selected, and
'SurE' is entered to confirm the
instruction.

Note

: Once cleared, a grand total

can not be recovered.
See section 5.14

'COdE'

Security code

Defines a four digit numeric code
which must be entered to gain
access to the programmable
functions.  Default code 0000
disables the security function and
allows unrestricted access to all
programmable functions. 
See section 5.15

5.4  Display update interval:   ‘UpdAtE’

Six different intervals between display updates
varying between 0.5 and 5 seconds may be
selected.   If either the rate or the total displays
are likely to change rapidly, a longer interval
between updates may simplify reading the
instrument display. The selected update interval
does not affect the update time of any other
instrument function such as the optional 4/20mA
output.

To define the update interval select ‘UpdAtE’ from
the main menu and press 

P

 to reveal the current

time.   Pressing the 

Up

 or 

Down

 button will scroll

through the six times. When the required interval
has been selected press 

E

 to return to the main

menu.

5.5  Type of input:   ‘InPut’

The BA534D may be programmed to accept pulse
inputs from a wide variety of sensors.   To define
an input type select ‘InPut’ from the menu and
press 

P

 which will reveal the current input type.

Pressing 

Up

 or 

Down

 will scroll through the five

options:

‘UOLts’

Voltage pulse input
Threshold 1V and 3V
5kHz max.
Input terminals 3 and 4

‘COIL’

Low voltage pulse
Threshold 20mV peak
5kHz max.
Input terminals 3 and 4

‘Pr.dEt’

NAMUR proximity detector
Threshold 1.2 and 2.1mA
5kHz max.
Input terminals 5 and 6

‘COntACt’

Switch contact
Threshold 100 and 1000

100Hz max
Input terminals 5 and 6

‘OP.COL’

Open collector
Threshold 2k

 and 10k

5kHz max.
Input terminals 5 and 6

When the required type of input has been selected
press 

E

 to return to the main menu.

Note:

  To count correctly, the input signal must fall

below the lower switching threshold and rise
above the higher switching threshold.

5.6  Position of the decimal points:   ‘d.P.’

The rate display can have up to six digits and the
decimal point may be positioned between any of
them, or omitted. Similarly, the total display has up
to eight digits and the decimal point may be
positioned between any of them, or may be
omitted.

To adjust the position of either decimal point
select 'd.P.' from the main menu and press 

P. 

This

will activate both displays with one digit  plus the
following decimal point of the total display
flashing.  If only the least significant digit is
flashing, this indicates that the decimal point is
omitted.

The position of the decimal point can be moved by
pressing the 

Up

 or 

Down

 push-button.  Operating

the 

push-button will toggle control between the

two displays.   When both decimal points have
been correctly positioned press 

E

 to return to the

main menu.

Summary of Contents for BA534D

Page 1: ...Issue 10 18th September 2008 BA534D Externally powered pulse input field mounting rate totaliser issue 10...

Page 2: ...Calibration procedure 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 comments 8 Accessorie...

Page 3: ...ys further extend the applications Fig 1 Simplified block diagram of BA534D 2 1 Initalisation Each time power is applied to the instrument initalisation is performed After a short delay the following...

Page 4: ...et Activated when the total Annunciator display is being reset 3 SYSTEM DESIGN 3 1 Flow transmitter loops The BA534D may be connected to almost any pulse output flowmeter and calibrated to display rat...

Page 5: ...4D rate totaliser 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 in most i...

Page 6: ...rective 2004 108 EEC For specified immunity all wiring should be in screened twisted pairs and the BA534D earth terminal should be locally earthed or connected to an earthed cable screen To prevent ci...

Page 7: ...total scale factor SCALE t Total flow is continuously added to the grand total The BA534D displays real decimal points Moving the position of a decimal point in a scale factor will therefore affect th...

Page 8: ...8...

Page 9: ...2 Lower display Turns the lower display which normally shows rate on or off See section 5 7 Display Description of function SCALE r Rate Scale Factor Defines the arithmetic relationship between the p...

Page 10: ...s from a wide variety of sensors To define an input type select InPut from the menu and press P which will reveal the current input type Pressing Up or Down will scroll through the five options UOLts...

Page 11: ...igit can be changed by pressing the Up or Down buttons When this digit is correct pressing P will transfer control to the next digit To position the decimal point in the rate scale factor move the fla...

Page 12: ...r control to the next digit To position the decimal point in the scaling factor move the flashing digit to the left hand side of the required decimal point position and simultaneously press the Up and...

Page 13: ...git of the code can be changed using 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 to return to the main menu The revised secu...

Page 14: ...ush button until the third least significant digit of the total display and following decimal point are flashing This gives the required total display resolution of 0 01 Press P to move control to the...

Page 15: ...enter 1050000 Finally return to the SCALE t prompt in the main menu by pressing E Step 9 Define clip off In this example totalisation is to be inhibited at flow rates below 300 litres per hour Select...

Page 16: ...ode 1209 digit by digit The P button will transfer control between digits When the new code has been entered press E to return to the main programme menu Step 13 Return to the display mode Following c...

Page 17: ...20mA output calibration Alarms do not function Alarms have been disabled following calibration change Re enable both alarms 7 2 Fault finding after commissioning ENSURE PLANT SAFETY BEFORE STARTING M...

Page 18: ...utputs WARNING These alarm outputs should not be used for critical safety applications such as a shut down system When the BA534D power supply is turned off or disconnected both BA534D alarm outputs w...

Page 19: ...19 Fig 10 Alarm menu structure...

Page 20: ...available on rate alarms See section 8 2 8 Summary of programmable alarm functions dELA Alarm delay time Adjusts the delay between the display equalling the setpoint and the alarm output being activa...

Page 21: ...st the hysteresis select HStr from the alarm menu and press P which will reveal the existing figure Each digit can be adjusted using the Up and Down push buttons and the P button to move to the next d...

Page 22: ...o the setpoints in the display mode by pressing the P and Up buttons simultaneously New instruments with alarms are supplied with the security code set to 0000 8 2 12 Adjusting alarm setpoints from th...

Page 23: ...pulse output The output is a polarised current sink that closes for a programmable duration each time the least significant digit of the BA534D display changes A programmable divider enables the puls...

Page 24: ...ng digit may be changed by pressing the Up or Down buttons When this digit is set as required pressing P will transfer control to the next digit When the flow rate corresponding to an output current o...

Page 25: ...mounting kits are available for securing the BA534D to a horizontal or vertical pipe BA392D Stainless steel bracket secured by two worm drive hose clips for 60 to 80mm outside diameter pipes BA393 He...

Page 26: ...ng commissioning 7 1 after commissioning 7 2 FILtEr 5 10 Flow indicator 2 3 Grand total 2 2 clear 5 14 Guarantee 7 5 HI LO 8 2 2 8 2 6 HStr 8 2 2 8 2 8 InPut 5 5 Installation 4 Instrument identificati...

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