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.

5
)+*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.

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12

13

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5.2 Accessing configuration functions
Throughout this manual push buttons are shown as
&, *, ( and )and legends displayed by the
instrument are shown in a seven segment font
exactly as they appear on the instrument display e.g.
inPut-A and FiLtEr-A.
Access to the configuration menu is obtained by
operating the ( and )push buttons
simultaneously. If the instrument is not protected by
an access security code the first parameter
FunCtion will be displayed. If a security code other
than the default code 0000 has already been
entered, the instrument will display CodE. Press
(to clear this prompt and enter the security code
for the instrument using the &or *push button to
adjust the flashing digit, and the (push button to
transfer control to the next digit. If the correct code
has been entered pressing )will cause the first
parameter FunCtion to be displayed. If an incorrect
code is entered, or a push button is not operated
within ten seconds, the instrument will automatically
return to the totalising mode.
All configuration functions and prompts are shown
on the upper eight digit display except the filter
which uses both the upper and lower displays.
Once within the main configuration menu the
required parameter can be selected by scrolling
through the menu using the &or *push buttons.
The configuration menu is shown diagrammatically
in Fig 7.
When returning to the totalising mode following
reconfiguration, the Rate Totaliser will display dAtA
followed by 5AVE while the new information is stored
in permanent memory.
5.3 Summary of configuration functions
This section summarises all the configuration
functions. When read in conjunction with Fig 7 it
provides a quick aid for configuring the Rate
Totaliser. If more detail is required, each section of
this summary contains a reference to a full
description of the function.
For simplicity this summary and Fig 7 only show
functions that configure both inputs and those which
configure input A. Immediately following each
function with an Asuffix in the configuration menu is
an identical function with a bsuffix that configures
the ‘b’ input. In this instruction manual descriptions
of ‘A’ input functions which are followed by an
identical function for the ‘b’ input are identified with
an *.
Display Summary of function
FunCtion Rate totaliser function
Defines the relationship of both pulse
input channels and the Rate Totaliser
display.
May be set to:
5td Standard linear relationship
Lin Separate 16 segment fully
adjustable lineariser in each
input channel which are
described in section 7.
See section 5.4
input-A Input*
Contains two sub-functions:
See section 5.5
inP . tYPE
Configures the Rate Totaliser input to
accept one of six types of input:
oP.CoL Open collector 
VoLt5 L Voltage pulse <1 >3V
VoLt5 H Voltage pulse <3 >10V
CoiL Magnetic pick-off
Pr.dEt Proximity detector 
ContACt Switch contact 
Requires input to be energised by
linking terminals 3 & 4 for input A, and
terminals 7 & 8 for input b.
See section 5.6

15
Display Summary of function
dEbounCE
Defines level of input de-bounce
applied to the pulse input to prevent
false counting:
dEFAuLt
HEAVY
LiGHt
See section 5.7
uPdAtE Display update interval
Rate totaliser display update interval
adjustable between 0.5 and 5 seconds.
See section 5.8
Count Composite display
Defines relationship between input A
and Input b for composite display.
Select:
A :b for Input A + Input b
A :-b for Input A – Input b
See section 5.9
di5P-1 Upper display
Defines whether total or rate is
shown on the upper display. The other
variable may be shown on the lower
display, providing the lower display is
on in function dI5P-2.
See section 5.10
di5P-2 Lower display
Defines the function of the lower
display. It can show the selected flow
variable briefly alternating with the
display identification, permanently
display the identification of the upper
display or it may be disabled.
Select:
5td Displays selected flow
variable briefly alternating
with the display
identification, except for
composite display.
LabEL Permanently displays
identification of upper
display.
oFF Lower display disabled.
See section 5.11
Display Summary of function
dP Decimal points
Defines the position of the decimal point
in both the rate and total displays.
See section 5.12
FACtor-A Input A flowmeter K-factor *
Each input of the rate totaliser is divided
by FACtor-A or factor-b, which are
usually set to the K-factor of the
flowmeter, thus converting the flowmeter
output into engineering units. FACtor
may be adjusted between 0.0001 and
99999.
When the 16 segment lineariser ‘Lin’ is
selected in the Function sub-menu, up
to 16 values for FACtor-a may be
entered, each starting at a specified
input pulse frequency to compensate for
errors resulting from flowmeter
nonlinearity.
See section 5.13 & Fig 9
5CALE .t-A Total Scale Factor *
5CALE-t is a dividing factor that converts
the pulse output from FACtor into a total
with the required engineering units. 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 4546.1 which is the number of
litres in 1,000 imperial gallons. 5CALE-t
may be adjusted between 0.0001 and
99999.
The total flow display is independent of
the rate display.
See section 6.14 & Fig 6
5CALE .r-A Rate Scale Factor *
5CALE-r is a dividing factor that converts
the pulse output from FACtor into a rate
with the required engineering units. 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 gallons.
5CALE-r may be adjusted between
0.0001 and 99999. The flow rate
display is independent of the total flow
display.
See section 5.15 & Fig 6

16
Display Summary of function
t-bA5E Timebase
Selectable multiplier allowing flow rate
to be displayed in units per second, per
minute or per hour.
Select:
tb-01 for flow / second
tb-60 for flow / minute
tb-3600 for flow / hour
See section 5.16
FiLtEr-A Display filter *
An adjustable digital filter to reduce
noise on the rate display. Two
parameters each adjustable between 0
and 9. The first digit defines the
amount of filtering applied to the
display, the second deviation from the
displayed rate at which the filter will be
overridden and the rate display will
move rapidly to the new value.
See section 5.17
CLP .oFF-A Clip-off *
To prevent totalisation of very low flow
rates, clip-off enables the user to select
a flow rate for each input below which
totalisation is inhibited.
See section 5.18
LoC clr Local reset
Contains sub-menu with two functions
which when enabled allow the two
totals and the grand total to be reset to
zero via the front panel push buttons
when the Rate Totaliser is in the
totalising mode.
See section 5.19
Local total reset clr tot
When on is selected, total A, total b or
both totals are reset to zero when the
&and *buttons are operated
simultaneously for more than 2
seconds in the totalising mode.
See section 5.20
Local grand total reset clr gtot
When on is selected, grand total may
be reset to zero when )+ *buttons
are operated simultaneously for more
than 10 seconds in the totalising mode.
Note: Once reset, the grand total can
not be recovered.
See section 5.21
Display Summary of function
e clr External reset
This function defines which totals are
reset to zero when terminals RS1 and
RS2 are connect together for more
than 1 second.
Select:
clr anb to reset totals A and b
clr Ato reset total A
clr b to reset total b
See section 5.22
CLr-Gtot Resets grand total to zero
This function resets the grand total to
zero from within the configuration
menu when Clr .YE5 is selected.
Note: Once reset, the grand total can
not be recovered.
See section 5.23
CodE Security code
Defines a four digit alphanumeric code
that must be entered to gain access to
the configuration menu. Default code
0000 disables the security function and
allows unrestricted access to all
configuration functions when the
(and )buttons are operated
simultaneously in the totalising mode.
See section 5.24
r5Et def Reset to factory defaults
Resets the instrument to the factory
defaults shown in section 5 when the
instruction is confirmed by entering
5ure.
See section 5.25

17
5.4 Rate Totaliser function: FunCtion
This function determines whether the two separate
adjustable sixteen segment linearisers, one for each
of the two flowmeter inputs, are activated. To reveal
the existing setting select FunCtion from the
configuration menu and press (.
5td Linearisers are not activated
Lin Linearisers are activated
If the function is set as required, press )to return
to the configuration menu, or press the &or *
button to change the setting, followed by the )
button to return to the FunCtion prompt in the
configuration menu.
5td Linear
Provides a linear relationship between the pulse
input and the Rate Totaliser displays for input A
and input b.
Lin 16 segment adjustable lineariser
Activates an independent sixteen segment
adjustable lineariser for each input. When Lin is
selected functions FACtor-A and FACtor-b are
expanded to allow up to 16 values to be entered
each starting at a specified input pulse frequency.
This allows FACtor-A and FACtor-b to be set to
the K-factor of each flowmeter at multiple flow
rates thus minimising errors caused by the
nonlinearity of the flowmeter’s K-factor.
Detailed information about the lineariser, including
configuration information is contained in section 6 of
this instruction manual.
5.5 Input*: inPut-A
The Input function contains two sub-functions
inP.tYPE and dEbounCE described in the following
sections which configure the Rate Totaliser input and
define the amount of input noise rejection.
5.6 Input type: inP .tYPE
inP.tYPE is a sub-menu which appears in both the
inPut-A and input-b functions. It defines the type
of flowmeter transducer or pulse that may be
connected to the input. To check or change the type
of input, select inPut-A or input-b in the
configuration menu and press (which will reveal
the inP .tYPE prompt, pressing (again will reveal
the existing input. If set as required press )twice
to return to the configuration menu, or repeatedly
press the &or *button until the required type of
input is displayed and then press )twice to return
to the configuration menu.
One of following six types may be selected for each
input:
Switching
thresholds
Low High
VoLt5 L Voltage pulse low 113V
VoLt5 H Voltage pulse high1310V
CoiL Magnetic pick-off 0 40mV
Pr .dEt Proximity detector 21.2 2.1mA
ContACt Switch contact 2100 1000
oP,CoL Open collector 2210k
Notes:
1. Maximum voltage input +30V.
2. For flowmeter transducers connected to input A
that require energising i.e. proximity detector,
switch contact and open collector, terminals 3 &
4 of the Rate Totaliser should be linked
together. Similarly for flowmeter transducers
connected to input b that require energising,
terminals 7 & 8 should be linked together.
3. To count correctly, the input pulse must fall
below the lower switching threshold and rise
above the higher switching threshold.
4. See section 5.7 for maximum counting
frequency.
5.7 Debounce*: dEbouncE
dEbouncE is an adjustable sub-menu which appears
in both the inPut-A and input-b functions.
De-bounce prevents the Rate Totaliser miscounting
when the input pulse has noisy edges, such as
those resulting from a mechanical contact closing
and bouncing. Three levels of protection may be
selected and the amount of de-bounce applied
depends upon the type of Rate Totaliser input that
has been selected in the inP.tYPE function.
The following table shows the minimum time that the
input pulse must be continuously above the upper
input switching threshold and continuously below the
lower switching threshold to ensure that the Rate
Totaliser processes the input pulse. Input switching
thresholds are shown in section 3.2.
De-bounce
level
Minimum input pulse width
Type of input
Contact All others
Default 1,600µs 40µs
Heavy 3,200µs 350µs
Light 400µs 5µs

18
The Rate Totaliser’s maximum counting frequency
depends upon the debounce level selected, the
shape of the input pulse and its amplitude. The
following table assumes a square wave input and is
only included for guidance. The maximum reliable
counting frequency will be lower if the input pulses
have sloping edges and the pulse amplitude only
slightly exceeds the input switching thresholds.
ONLY FOR GUIDANCE
De-bounce
level
Maximum operating frequency
Type of input
Contact All others
Default 250Hz 12kHz
Heavy 120Hz 2kHz
Light 1,000Hz 100kHz
The minimum input frequency is 0.01Hz. Below this
frequency the rate display is forced to zero.
The dEbouncE sub-function is located in the inPut-A
and input-b functions. Select inPut-A or input-b
in the configuration menu and press (which will
reveal the inP .tYPE prompt, press the &or *
button to select dEbouncE followed by (to reveal
the existing setting. Pressing the &or *button
will scroll through the three levels. When the
required level has been selected, pressing )twice
will enter the selection and return the display to the
inPut-A or input-b prompt in the configuration
menu.
5.8 Display update interval: uPdAtE
If either the rate or the total display is likely to
change rapidly, a longer interval between display
updates may simplify reading the Rate Totaliser
displays. This function allows one of six different
display intervals between 0.5 and 5 seconds to be
selected. The selected display update interval does
not affect the update time of any other instrument
function. i.e. instrument accuracy is not affected.
To adjust the update interval select uPdAtE from the
configuration menu and press ( to reveal the
existing setting. Pressing the &or * button will
scroll through the six times. When the required
interval has been selected, press )to enter the
selection and return to the configuration menu.
5.9 Composite display: Count
The BA588E can produce a composite rate and total
display from the sum or difference of Input-A and
Input-b. This composite display is only meaningful if
Input-A and Input-b are calibrated to have the same
engineering units of display. This function defines
the composite display.
To check or change the composite display function
select Count in the configuration menu and press
(which will reveal the current setting which may
be changed by pressing the &or *button.
Select:
A:bto display Input A + Input b
A:-b to display Input A – Input b
When set as required press )to return to the
configuration menu.
5.10 Upper display: di5P-1
Usually total flow is shown on the larger upper eight
digit display, but this function allows rate to be
shown on the upper display and total flow on the
smaller lower display which has six positive digits or
five digits with a negative sign.
To check the status of the upper display, select
di5P-1 from the configuration menu and press
(which will reveal if the display is showing rAtE or
totAL. The setting can be changed by pressing the
&or *button followed by the )button to enter
the selection and return to the configuration menu.
5.11 Lower display: di5P-2
The lower display is normally used for displaying the
rate of flow, but this function also allows it to
intermittently or continuously identify which of the
two inputs is being displayed, or the lower display
may be disabled.
To check the status of the lower display, select
dI5P-2 from the configuration menu and press
(which will reveal the existing setting which can
be changed by pressing the &or *button
followed by the )button to enter the selection and
return to the configuration menu.
The following table shows the effect of the three
di5P-2 options when input A, input b or the
composite display are selected in the totalising
mode.

19
Display
selected
using the
&or *
buttons in
the tota-
lising mode.
Lower display di5p-2 setting in
configuration menu.
5td label off
Composite
Composite
rate and total
shown
permanently
Composite
rate and total
shown
permanently
A:bor A:-b
shown
briefly.
No
numerical
value
Input-A
Numerical
value
alternating
with in-A
shown briefly
every few
seconds
In-A shown
continuously.
No
numerical
value
In-A shown
briefly.
No
numerical
value
Input-b
Numerical
value
alternating
with in-b
shown briefly
every few
seconds
In-b shown
continuously.
No
numerical
value
In-b shown
briefly.
No
numerical
value
5.12 Position of the decimal points: dP
The upper and lower displays have eight and six
digits respectively. This function enables the
position of the decimal point on both displays to be
independently positioned.
To adjust the position of the decimal points select dP
from the configuration menu and press (. The
upper display defined as the rate or total display by
function di5P-1 (section 5.10) will be activated and
identified by the display annunciator as Rate or
Total. The decimal point, which may be positioned
between any of the digits or may be absent is
positioned by operating the &or *push button.
When the decimal point in the upper display has
been positioned pressing the (button will transfer
control to the lower display variable, but it will be
shown and annunciated on the larger upper display.
The decimal point may be positioned in the same
way by operating the &or *push buttons. When
set as required enter the settings and return to the
configuration menu by operating the ) button.
5.13 Flowmeter K-factor: FACtor-A *
The rate totaliser pulse input A is divided by
FACtor-A, which is adjustable between 0.0001 and
99999. For flow applications FACtor-A should be
set to the K-factor of the flowmeter connected to
input A. K-factor is the number of pulses that the
flowmeter produces per unit volume of flow
e.g. 20 pulses per litre. FACtor-A therefore
converts the flowmeter output into engineering units
ready for further scaling to produce the required rate
and total flow displays. See Fig 6.
When the 16 segment lineariser Lin is selected in
FunCtion up to 16 values of FACtor-A may be
entered, each starting at a specified input pulse
frequency, which may be adjusted to compensate for
flowmeter non-linearity. See section 6 of this
manual.
To check or change the value, select FACtor-A from
the configuration menu and press (which will
reveal the existing value with one digit flashing.
The flashing digit may be adjusted by pressing the
&or *button. When this digit has been adjusted,
pressing (will transfer control to the next digit.
When all the digits have been adjusted pressing
(again will transfer control to the decimal point
that may be positioned between any of the digits, or
may be omitted by moving it to the right of the least
significant digit. Finally press )to return to the
FACtor-A prompt in the configuration menu.
5.14 Total scale factor*: S5CALE .t-A
5CALE .T-A is a dividing factor adjustable between
0.0001 and 99999 that enables total flow to be
displayed in the required engineering units. e.g. if
the output from FACtor-A is one pulse per litre and
the total display is required in thousands of gallons,
5CALE .t-A should be set to 4546.1 which is the
number of litres in 1,000 imperial gallons. The total
flow display is independent of the rate display.
To check or change the total scale factor select
5CALE .t-A from the configuration menu and press
( which will reveal the existing value with one digit
flashing. The value of the flashing digit may be
changed by pressing the &or *button. When this
digit has been adjusted as required, pressing (will
transfer control to the next digit. When all the digits
have been adjusted pressing again (will transfer
control to the decimal point that may be positioned
between any of the digits, or may be omitted by
moving it to the right of the least significant digit.
When the required total scale factor has been
entered, press )to return to the 5CALE .t-A prompt
in the configuration menu.

20
5.15 Rate scale factor*: 5CALE .r-A
5CALE .r-A is a dividing factor adjustable between
0.0001 and 99999 that enables the flow rate to be
displayed in the required engineering units. e.g. if
the output from FACtor-A is one pulse per litre and
the rate display is required in gallons, 5CALE .r-A
should be set to 4.5461 which is the number of litres
in an imperial gallons.
The units of the rate display are volume per unit of
time. The unit of time is the timebase of the
instrument which is determined by t-bA5E
described in section 5.16.
To check or change the rate scale factor select
5CALE .r-A from the configuration menu and press
(which will reveal the existing value with one digit
flashing. The value of the flashing digit may be
changed by pressing the &or *button. When
this digit has been adjusted as required, pressing (
will transfer control to the next digit. When all the
digits have been adjusted pressing (again will
transfer control to the decimal point which may be
positioned between any of the digits, or may be
omitted by moving it to the right of the least
significant digit. When the rate scale factor has
been entered, press ) to return to the 5CALE .r-A
prompt in the configuration menu.
5.16 Timebase: ‘t-bA5E’
The timebase multiplies the rate display by 1, 60 or
3,600 depending upon whether the Rate Totaliser is
required to display flow rate per second, per minute
or per hour. See Fig 6.
To check or change the timebase, select t-bA5E
from the configuration menu and press ( which will
reveal the existing setting. Pressing the &or *
button will scroll through the following three options
to display:
tb-1 for flow / second
tb-60 for flow / minute
tb-3600 for flow / hour
When the required multiplier is displayed press )
to return to the t-bA5E prompt in the configuration
menu.
5.17 Display filter*: FiLtEr-A
The digital display filter associated with each input
has two independent adjustable parameters
enabling the rate display response to be tailored for
optimum performance. The filter parameters are
controlled by a two digit number. The first digit
defines the amount of filtering applied to the display
as shown below.
First digit Filter time constant
seconds
0X 0
1X 1.3
2X 4.3
3X 6.5
4X 8.7
5X 11.3
6X 15.7
7X 20.9
8X 25.2
9X 31.5
The second digit defines the deviation from the
displayed rate at which the filter will be overridden
and the rate display will move rapidly to the new
value.
Second digit Magnitude of step
change which will
produce a rapid
response
X0 off
X1 1%
X2 2%
X3 4%
X4 8%
X5 12%
X6 16%
X7 24%
X8 32%
X9 64%
By careful adjustment of the two parameters a stable
display with an acceptable input step response can
be obtained for most applications.