BEKA BA588E User manual

Issue: 6
9th July 2019
BA588E
General Purpose
Two input
Rate Totaliser
Issue 6

2
1. DESCRIPTION
2. OPERATION
2.1 Initialisation
2.2 Controls
2.3 Displays
2.3.1 Display over-range
3. SYSTEM DESIGN
3.1 Power supply
3.2 Pulse input
3.2.1 Switch contact input
3.2.2 Open collector input
3.2.3 2-wire proximity detector input
3.2.4 Magnetic pick-off input
3.2.5 Voltage pulse input
3.3 Remote reset
4. INSTALLATION
4.1 Location
4.2 EMC
4.3 Installation procedure
4.4 Scale card
5. CONFIGURATION AND CALIBRATION
5.1 Calibration structure
5.2 Accessing configuration functions
5.3 Summary of configuration functions
5.4 Rate totaliser function
5.5 Input
5.6 Input type
5.7 Debounce
5.8 Display update interval
5.9 Count
5.10 Upper display
5.11 Lower display
5.12 Position of decimal points
5.13 Flowmeter K-factor
5.14 Total scale factor
5.15 Rate scale factor
5.16 Timebase
5.17 Display filter
5.18 Clip-off
5.19 Local reset
5.20 Local total reset
5.21 Local grand total reset
5.22 External reset
5.23 Grand total reset from configuration menu
5.24 Define security code
5.25 Reset to factory defaults
6. LINEARISER
6.1 Flowmeter specifications
6.2 Summary of configuration functions
6.3 Copy A lineariser to b lineariser
6.4 Add a segment
6.5 Remove a segment
6.6 Input frequency
6.7 Flowmeter K-factors
6.8 Lineariser error messages
6.9 Lineariser factory defaults
7. Pulse Output
7.1 System design
7.2 Configuration
7.3 Access pulse output sub-menu
7.4 Enable pulse output
7.5 Source of output pulse
7.6 Divide output pulse frequency
7.7 Define output pulse width
7.8 Stored pulses
8. CONFIGURATION EXAMPLE
8.1 Configuration procedure
9. MAINTENANCE
9.1 Fault finding during commissioning
9.2 Fault finding after commissioning
9.3 Servicing
9.4 Routine maintenance
9.5 Guarantee
9.6 Customer comments
10. ACCESSORIES
10.1 Scale card
10.2 Tag information
10.3 Alarms
10.3.1 Solid state output
10.3.2 Configuration & adjustment
10.3.3 Alarm enable
10.3.4 Type of alarm
10.3.5 Setpoint adjustment
10.3.6 Alarm function
10.3.7 Alarm output status
10.3.8 Hysteresis
10.3.9 Alarm delay
10.3.10 Alarm silence time
10.3.11 Flash display
10.3.12 Access setpoints
10.3.13 Adjusting alarm setpoints
from totalising mode.
10.4 Display backlight
10.5 4/20mA output
10.5.1 System design
10.5.2 Configuration
10.5.3 Access 4/20mA output sub-menu
10.5.4 Enable 4/20mA output
10.5.5 Select rate or total source
10.5.6 Display which corresponds to
4mA output.
10.5.7 Display which corresponds to
20mA output.
The BA588E is CE marked to show compliance with European EMC Directive 2014/30/EU.
CONTENTS

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1. DESCRIPTION
This 2 input general purpose Rate Totaliser is
primarily intended for use with two flowmeters. The
instrument can simultaneously display the total flow
and the rate of flow in the same or different
engineering units of either flowmeter, or the sum or
difference of the two rate and total flows. Each
input is individually configurable.
The instrument is controlled and configured via the
four front panel push buttons, a user defined four
digit code may be entered to prevent accidental
access to the configuration menu.
This instruction manual supplements the
abbreviated instruction sheet supplied with each
instrument.
2. OPERATION
Fig 1 shows a simplified block diagram of the
BA588E Rate Totaliser. The instrument has two
separate inputs 'A' and 'b', each can accept pulses
from a flowmeter and the instrument can display the
individual rates and totals, or the sum or difference
of the two rates and totals.
Each input may be individually configured to accept
pulses from a wide variety of flowmeter transducers
and to display the rate of flow and the total flow in
the same or different engineering units.
When the flowmeter transducer requires energising,
such as a switch contact, open collector or a two
wire proximity detector, an external link connected
between terminals supplies power to the transducer
input terminals.
Each channel has a separate lineariser with up to
sixteen straight-line segments that may be
configured to compensate for the flowmeter’s non-
linearity.
All BA588E Rate Totalisers have an isolated pulse
output which may be configured to synchronously
retransmit either of the two pulse inputs or the
consolidated Input A + Input b rate of flow.
The following factory fitted accessories are
available:
Internally powered display backlight
Dual isolated alarm outputs
Isolated 4/20mA current sink output
The dual isolated solid state alarm outputs, which
may be configured as rate or total alarms, further
extend the application of the BA588E totaliser.
The isolated 4/20mA current output may be
configured to retransmit the composite rate or total
flow.
Fig 1 BA588E rate totaliser block diagram
2.1 Initialisation
Each time power is applied to a BA588E
initialisation is performed. After a short delay the
following display sequence occurs:
All segments of the display are activated
Rate Totaliser starts functioning using the
configuration information stored in the
instrument's permanent memory. Unless
total and grand total displays have been
reset to zero, any new flow will be added to
the existing totals.
2.2 Controls
The BA588E is controlled and configured via four
front panel push buttons. In the totalising mode i.e.
when the instrument is displaying rate and total flow
the push button functions are:
Push Button Functions
& or *Scrolls both displays between:
Input A
Input b
Input A + b or Input A – b which
is configurable. See 5.9
)+&Grand total - shows the least
significant 8 digits of a 16 digit
counter.

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)+*Grand total - shows the most
significant 8 digits of a 16 digit
counter. If buttons are pressed for
longer than 10 seconds the grand
total will be reset to zero if the grand
total reset function clr gtot is
enabled. See 5.21
To reset the grand total to zero from
the operating mode press the
) ++* buttons simultaneously for
ten seconds until CLr.no is displayed.
Using the &or *button change
the display to Clr .YE5 and press )
which will reset the grand total and
restore the original display.
&+*If the local total reset function clr
tot is enabled in the
configuration menu,
simultaneously pressing the &
and *buttons for more than
three seconds allows total A, total
b or both totals to be selected by
operating the &or *button.
Operating the ) button will then
reset the selected total to zero
and clear any stored output
pulses.
See 5.20
(+&Shows each for 2 seconds:
Firmware and version numbers
Function of instrument: 2chtotal
Options fitted: -A -C
(+ *Provides direct access to the alarm
setpoints when the Rate Totaliser is
fitted with optional alarms and the
AC5P setpoints function has been
enabled.
(+)Access to configuration menu
2.3 Displays
The BA588E has two digital displays and associated
annunciators, plus a flow indicator as shown on front
cover of this manual.
Total display Shows the total flow of the
selected input or the composite
flow A + b or A - b usually on the
upper eight digit display. May
be reset to zero by the front
panel push buttons or a remote
reset switch.
Rate display Shows the flow rate of the
selected input or the composite
flow rate A + b or A - b usually on
the lower six digit display.
Flow indicator This disc in the lower left hand
corner of the instrument display
'rotates' for two seconds each
time an input pulse is received
on the input being displayed.
Appears to rotate continuously
when input frequency exceeds
0.5Hz.
Hold Activated when input frequency
annunciator is below the clip-off threshold for
the input being displayed.
Reset Activated while the instrument is
annunciator being reset.
Rate Identifies the rate display.
annunciator
Total Identifies the total display.
Annunciator
RTx Retransmitted pulse
annunciator annunciator.
Depends upon the setting of
5ource in the pulse output
configuration menu.
5caled:
Annunciator activated each
time pulse output open
collector is on, i.e. Ron is
less than 60+ 3V.
direct:
Annunciator continuously
activated.
2.3.1 Display over-range
Over-range of the upper eight digit display or the
lower six digit display is indicated by all the digits
displaying 9and all the decimal points flashing.

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3. SYSTEM DESIGN
Fig 2 illustrates the basic circuit that is used for all
BA588E installations. For simplicity the pulse output
and optional alarms and 4/20mA output are
described in separate sections of this manual.
Fig 2 Basic BA588E system
When designing a system it is important to
remember that terminals 2, 6, 10 and RS2 are
interconnected within the BA588E. See Fig 1.
3.1 Power supply
The BA588E Rate Totaliser requires a dc supply
between 10V and 30V at terminals 1 & 2 and
consumes:
10mA without optional backlight
plus 6mA when terminals 3 & 4 are linked
plus 6mA when terminals 7 & 8 are linked
plus 16mA with optional backlight
As shown in Fig 1 terminals 2, 6, 10 and RS2 are
interconnected within the BA588E Rate Totaliser.
Therefore these terminals should only be connected
to the same, or to an isolated circuit.
3.2 Pulse inputs
As shown in Fig 2 both BA588E Rate Totaliser inputs
may be connected to flowmeters with a wide variety
of outputs.
The following table shows the Rate Totaliser's input
switching thresholds when configured to operate
with various sensors. For reliable operation input
pulses must fall below the lower threshold and rise
above the upper threshold.
Flowmeter output Switching thresholds
Lower Upper
Switch 1001000
Proximity detector 1.2mA 2.1mA
Open collector 2k10k
Magnetic pick-off 0mV 40mV peak
Voltage pulse low 1.0V 3.0V
Voltage pulse high 3.0V 10.0V
Flowmeters with a switch contact, proximity detector
or an open collector output require energising to
determine their state which is achieved by linking
two BA588E terminals together for each input as
shown in Fig 2.
3.2.1 Switch contact input
Any flowmeter with a mecvhanically or magnetically
activated switch contact output may be directly
connected to input terminals 5 & 6 or 9 &10. The
BA588E contains a configurable debounce circuit to
prevent contact bounce being counted. Three levels
of debounce protection are independently available
for each input. See section 5.7.
3.2.2 Open collector input
Flowmeters with an open collector output may be
directly connected to input terminals 5 & 6 or 9 &10.
The polarity of the open collector output should be
observed. The BA588E contains a configurable
debounce circuit to prevent false triggering. Three
levels of de-bounce protection are independently
available for each input. See section 5.7.
3.2.3 2-wire proximity detector input
Most flowmeters incorporating a NAMUR 2-wire
proximity detector may be directly connected to a
BA588E inputs, providing the minimum operating
voltage of the flowmeter (proximity detector) is less
than 7.5V. The BA588E contains a configurable de-
bounce circuit to prevent false triggering. Three
levels of debounce protection are independently
available for each input. See section 5.7.

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3.2.4 Magnetic pick-off input
Flowmeters incorporating a magnetic pick-off to
sense flow will have a low level voltage output
unless the flowmeter incorporates an amplifier. CoiL
in the BA588E input configuration menu is a low
level voltage pulse input intended for use with a
magnetic pick-off. The BA588E contains a
configurable de-bounce circuit to prevent false
triggering. Three levels of debounce protection are
independently available for each input. See section
5.7.
3.2.5 Voltage pulse input
Two voltage pulse input ranges are independently
selectable in the BA588E Rate Totaliser
configuration menu, VoLt5 L and VoLt5 H as shown
in section 3.2. The BA588E contains a configurable
debounce circuit to prevent false triggering of the
instrument. Three levels of de-bounce protection
are independently available for each input,
See section 5.7.
3.3 Remote reset
The BA588E total display may be remotely reset to
zero by connecting RS1 and RS2 together for more
than one second. Permanent interconnection
inhibits totalisation. Remote resetting may be
accomplished by any switch contact.
Note: The BA588E may also be configured to reset
the total display to zero by operating the &
and *push buttons simultaneously for more
than two seconds in the totalising mode i.e.
when the instrument is displaying flow.
See 5.20
4. INSTALLATION
4.1 Location
The BA588E Rate Totaliser has a robust glass
reinforced Noryl enclosure with a toughened glass
window. The front has IP66 ingress protection and a
gasket seals the joint between the instrument
enclosure and the panel, the rear of the instrument
has IP20 ingress protection.
The BA588E may be installed in any panel providing
that the operating temperature is between -40°C and
+70°C. At temperatures below -20°C the display
digits will change more slowly and contrast will be
reduced but the instrument will continue to totalise.
Fig 3 shows the overall dimensions of the instrument
together with the recommended panel cut-out
dimensions. To achieve an IP66 seal between the
instrument enclosure and the instrument panel the
smaller tolerance aperture must be used, and the
instrument secured with four panel mounting
clamps.
Although the front of the BA588E has IP66
protection it should be shielded from continuous
direct sunlight and severe weather conditions.
4.2 EMC
The BA588E Rate Totaliser complies with the
requirements of the European EMC Directive
2014/30/EU. For specified immunity all wiring
should be in screened twisted pairs, with the
screens earthed at one point.

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Recommended panel cut-out
dimensions for all installations
Mandatory to achieve an IP66 seal
between instrument and panel
136 +0.5/-0.0 x 66.2 +0.5/-0.0
DIN 43700
138.0 +1.0/ -0.0 x 68 +0.7 -0.0
Support panel wiring to prevent vibration damage
Note: Optional backlight is internally powered
Fig 3 BA588E dimensions & terminals
4.3 Installation Procedure
a. Cut the specified aperture in the panel. To
achieve an IP66 seal between the instrument
enclosure and the instrument panel the
aperture must have the tighter tolerances
specified in Fig 3.
b. Slide the gasket over the body of the BA588E
before inserting the instrument into the panel
aperture.
c. Firstly ensure that all the panel mounting
clamps are closed by turning the knurled
screws fully anti clockwise until the two pips in
the clamp foot align with holes in the clamp
body.
d. Place a clamp in the recess on each side of the
instrument, pulling gently to slide it onto the
dovetail as shown in Fig 4. Push the knurled
screw slightly forward to engage the thread and
tighten by turning clockwise until it is just finger
tight. When the clamps are fitted ensure that
the gasket behind the front panel bezel is
correctly positioned before fully tightening the
clamps to secure the instrument. The maximum
recommended clamp tightening torque is
22cNm (1.95 lbf in) which is approximately
equivalent to finger-tight plus one half turn.
Do not over tighten.
e. Four panel mounting clamps are required to
achieve an IP66 seal between a BA588E and
the instrument panel.
f. Connect the panel wiring to the rear terminal
block(s) as shown in Fig 3. To simplify
installation, the terminals are removable so that
the panel wiring can be completed before the
instrument is installed. Wiring should be
secured to prevent vibration causing damage to
the connectors.
Fig 4 Fitting panel mounting clamps

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4.4 Scale card
The BA588E's units of measurement are shown on a
printed scale card in a window at the right hand side
of the display. The scale card is mounted on a
flexible strip that is inserted into a slot at the rear of
the instrument as shown in Fig 5. Thus the scale
card can easily be changed without removing the
BA588E Rate Totaliser from the panel or opening the
instrument enclosure.
New instruments are supplied with a printed scale
card 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 of flow measurement is available as
an accessory from BEKA associates. Custom
printed scale cards can also be supplied.
To change a scale card, unclip the tapered end of
the flexible strip at the rear of the instrument by
gently pushing it upwards and pulling it out of the
enclosure. Peel the existing scale card from the
flexible strip and replace it with a new printed card,
which should be aligned as shown below. Do not fit
a new scale card on top of an existing card.
Install the new scale card by gently pushing the
flexible strip into the slot at the rear of the
instrument, when it reaches the internal end-stop
secure it by pushing the end of the flexible strip
downwards so that the tapered section is held by the
rear panel.
Align the self-adhesive printed scale
card onto the flexible strip and insert
the strip into the instrument as
shown below.
Fig 5 Inserting the flexible strip carrying the scale
card into slot at the rear of the instrument.
5.0 CONFIGURATION AND CALIBRATION
The BA588E Rate Totaliser is configured and
calibrated via four front panel push buttons. Figs 6
and 7 show the calibration structure and the
configuration menu.
Each menu function is summarised in section 5.3 of
this manual and each summary includes a reference
to more detailed information. The two sixteen
segment linearisers and the pulse output are
described separately in sections 6 and 7.
When factory fitted optional alarms and a 4/20mA
output are included, additional functions appear in
the configuration menu which are described
separately in sections 10.3 and 10.5.
All new BA588E Rate Totalisers are supplied
calibrated as requested at the time of ordering. If
calibration is not requested, Rate Totalisers will have
default configuration which is shown in the following
table, but can easily be re-configured on-site.
Function Display Default
Access code CodE 0000
Function FunCtion 5td
A Input* inP .tYPE-A oP.CoL
Debounce dEbounCE dEFAuLt
Update uPdAtE 0 .5
Count Count A :b
Upper display di5p-1 totAL
Lower display di5P-2 5td
Decimal point dP Total00000000
Rate 0000.0
Factor input A* FACtor-A 001 .00
Total scale factor input A* 5cALE .T-A 001 .00
Rate scale factor input A* 5cALE .R-A 001 .00
Timebase t-bA5E tb-01(secs)
Filter for input A* FiLter-A 24
Clip-off for input A* CLP .oFF-A 0000.0
Local total reset Clr tot oFF
Local grand total reset Clr Gtot oFF
Pulse source 5ource 5caled
divide 1
duration 0 .1
External reset E clr clr anb
Access code CodE 0000
Notes:
1. Defaults for input A are shown, defaults for
input b are identical, functions affected are
identified with an *.
2. While the instrument is being configured
totalisation continues so that any flow
occurring during this time is recorded.

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5.1 Calibration structure
Fig 6 shows the BA588E calibration structure. Two
identical channels enable the rate and total displays
for input A and input b to be independently
configured.
Configuration functions which only apply to one Rate
Totalisier channel are identified with a suffix, i.e. the
rate scale factor 5CALE .r-A applies to channel A and
5CALE .R-b applies to channel b. Configuration
functions that do not have a channel suffix, such as
the timebase t-bA5E, apply to both channels.
The frequency of pulses received at each input is
divided by FACtor-A or FACtor-b, which is usually
set to the K-factor of the flowmeter, thus converting
the flowmeter output into engineering units. When
linearisation Lin is selected in the Function sub-
menu, up to 16 values for FACtor-A and FACtor-b
may be entered, each starting at a specified input
pulse frequency. Linearisation compensates for
flowmeter nonlinearity and increases totalisation
accuracy. See section 6.
5CALE-r is a dividing factor that converts the output
from FACtor into the required engineering units for
the rate display. e.g. if the output from FACtor is one
pulse per litre and the rate display is required in
gallons, 5CALE-r should be set to 4.5461 which is
the number of litres in an imperial gallon.
The total flow display is independent of the rate
display. 5CALE-t is a dividing factor that converts
the output from FACtor into the required engineering
units for the total display. e.g. if the output from
FACtor is one pulse per litre and the total display is
required in thousands of gallons, 5CALE-t should be
set to 4,546.1 which is the number of litres in 1,000
imperial gallons.
The Count function allows the sum or difference of
the two input flow rates and the two flow totals to be
displayed, but is only meaningful if they are
calibrated to display the same engineering units.
When the BA588E Rate Totaliser is in the totalising
mode the following displays can be selected using
the &or *push buttons:
Select Totaliser displays
Input A Input A rate and total flow
Input b Input b rate and total flow
A:b or A :-b Composite rate and total flow
depends upon how the Count
function has been configured
See 5.9
The timebase t-bA5E is a multiplying factor that
determines if the instrument displays flow rate per
second, per minute or per hour.
The BA588E uses ‘real’ decimal points, moving the
position of a decimal point in a scale factor will
therefore affect the instrument calibration.