BEKA BA364NG User manual

Issue: 6
9th July 2019
BA364NG
Two Input
Ex nA and Ex tc
Counter
Issue 6

1. Description
2. Operation
2.1 Initialisation
2.2 Controls
2.3 Displays
3. Certification
3.1 Ex nA certification
3.2 Zones, gas groups & T rating
3.3 Safety parameters
3.4 Special conditions for safe use
3.5 Power supply
3.6 Pulse input
3.7 Remote reset terminals
3.8 Certification label information
4. System Design for Hazardous Areas
4.1 Power supply
4.2 Pulse input
4.2.1 Input switching thresholds
4.2.2 Switch contact input
4.2.3 2-wire proximity detector input
4.2.4 Open collector
4.2.5 Magnetic pick-off input
4.2.6 Voltage pulse input
4.3 Remote reset
5. Installation
5.1 Location
5.2 Installation procedure
5.3 EMC
5.4 Units of measurement and tag marking
on scale card.
6. Configuration and Calibration
6.1 Calibration structure
6.2 Accessing configuration functions
6.3 Summary of configuration functions
6.4 Input A: input-a
6.5 Input A type: inp.type
6.6 Input A debounce: debounce
6.7 Input b: input-b
6.8 Input b type: inp.type
6.9 Input b debounce: inp.type
6.10 Input A pulse counting edge: cntedg-a
6.11 Input b pulse counting edge: cntedg-b
6.12 Display update interval: update
6.13 Counting function: count
6.14 Upper display: di5p-1
6.15 Lower display: di5p-2
6.16 Position of decimal points: dp
6.17 Total scale factor: 5cale.t
6.18 Rate scale factor 5cale.r
6.19 Timebase: t-ba5e
6.20 Display filter: filter
6.21 Direction of count: up or dn
6.22 Reset value: clr val
6.23 Local reset: loc clr
6.24 Local total reset: clr tot
6.25 Local grand total reset: clr gtot
6.26 Reset grand total from configuration
menu: clr gtot
6.27 Security code: code
6.28 Reset configuration to factory defaults:
r5et def
6.29 Display overflow
7. Pulse Output
7.1 Ex nA certification
7.2 System design
7.3 Configuration
7.4 Access pulse output sub-menu:
pul5e op
7.5 Enable pulse output: enbl
7.6 Source of output pulse: 5ource
7.7 Divide output pulse frequency: divide
7.8 Output pulse width: duration
8. Configuration example
2
222222222222222222222222
CONTENTS
The BA364NG is CE marked to show compliance with the European Explosive Atmospheres Directive
2014/34/EU and the European EMC Directive 2014/30/EU

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 Units of measurement and instrument
identification.
10.2 Backlight
10.3 Alarms
10.3.1 Solid state output
10.3.2 Ex nA certification
10.3.3 Summary of configuration
functions.
10.3.4 Alarm enable: enbl
10.3.5 Type of alarm: type
10.3.6 Setpoint adjustment: 5p1x
10.3.7 Alarm function: hi.lo
10.3.8 Alarm output status: ni.nc
10.3.9 Hysteresis: h5tr
10.3.10 Alarm delay: dela
10.3.11 Alarm silence time: 5il
10.3.12 Flash display when alarm
occurs: fl5h
10.3.13 Access setpoint: ac5p
10.3.14 Adjusting alarm setpoints
from display mode.
10.4 4/20mA output
10.4.1 Ex nA certification
10.4.2 Configuration and calibration
10.4.3 Access 4/20mA output sub-menu:
4-20 op
10.4.4 Enable 4/20mA output: enble
10.4.5 Select rate or total source:
4-20type
10.4.6 Define display for 4mA output:
4.000
10.4.7 Define display for 20mA output:
20.000
Appendix 1 ATEX Dust certification
Appendix 2 IECEx certification
Appendix 3 ETL & cETL certification gas
and dust certification.
3

4

1. DESCRIPTION
The BA364NG is an Ex nA and Ex tc certified, field
mounting, two input Counter which will accept pulses
on one or both inputs. The Counter may be
configured to show one of the following in engineering
units:
Input A + Input b
Input A -Input b
Input A count direction controlled by Input b
Quadrature decoder
(Input A and Input b electrically 90oapart)
A smaller six digit display may be activated to show
the composite pulse rate in engineering units per
second, minute or per hour.
In addition to counting applications, the BA634NG can
display the position, direction of movement and speed
of a shaft or cable using the quadrature encoder.
The optically-isolated pulse output may be configured
to synchronously retransmit either of the two pulse
inputs or a scaled output when the least significant
digit of the total display is incremented.
This instruction manual supplements the abbreviated
instruction sheet supplied with each instrument.
The BA364NG is ATEX Ex nA and Ex tc certified and
complies with the European ATEX Directive 2014/34/
EU. The main sections of this manual describe ATEX
gas certification. ATEX dust certification of the
BA364NG is described in Appendix 1.
For international applications the BA364NG also has
IECEx certification which is described in Appendix 2.
For applications in the USA and Canada the
BA364NG Counter has ETL & cETL certification
which is described in Appendix 3.
2. OPERATION
Fig 1 shows a simplified block diagram of the
BA364NG Counter. The instrument has two
inputs, A and b, which can be individually
configured to accept pulses from most types of
sensor. The BA364NG can display the total
number of pulses received from each input, or their
sum or difference, together with associated rates
on a separate display.
Fig 1 BA364NG block diagram
The BA364NG can be supplied with any of the
following factory fitted accessories:
Internally powered display backlight
Dual isolated alarms
Isolated 4/20mA output
5

2.1 Initialisation
Each time power is applied to a BA364NG Counter
initialisation is performed. After a short delay the
following display sequence occurs:
All segments of the display are activated.
Counter starts functioning, using the
configuration information stored in the
instrument’s permanent memory. Unless total
and grand total displays have been reset, new
pulses will be added to the existing totals.
2.2 Controls
The BA364NG Counter is controlled and configured
via four front panel push buttons. In the display
mode i.e. when the instrument is counting the push
button functions are:
Push Button Functions
) + &Grand total - shows Lo followed by least
significant 8 digits of the 16 digit grand
total.
) + * Grand total - shows Hi followed by the
most significant 8 digits of the 16 digit
grand total.
If Local Grand Total Reset CLr Gtot in
the instrument configuration menu has
been activated, operating the ) and
*buttons simultaneously for ten
seconds will result in Clr .no being
displayed with the no flashing. Operating
the *or &button will change the
display to Clr .YE5, the )button will
then reset the grand total to zero which
will be confirmed by a brief display of
Gt Clrd.
See 6.25
& + *If Local Total Reset CLr tot in the
instrument configuration menu has been
activated, operating the & and *
buttons simultaneously for three seconds
will reset the total display to zero and
clear any pulses stored in the optional
pulse output.
See 6.24
(+ &Shows in succession firmware version
number, instrument function 2ch cntr
and any output accessories that are
fitted:
-A Dual alarm outputs
-P Pulse output (always fitted)
-C 4/20mA output
( + )Access to configuration menu
Note: When optional alarms are fitted, the
BA364NG Counter may be configured to provide
direct access to the alarm setpoints from the
display mode when the (and *buttons are
operated simultaneously.
See 10.3.13 and 10.3.14
2.3 Displays
The BA364NG Counter has two digital displays
and associated annunciators, plus a pulse input
indicator as shown on the front cover of this
manual.
Total Shows the total pulse count on the
display upper eight digit display. May be
reset via front panel push buttons
or by a remote reset switch.
Rate Shows the pulse rate on the lower
Display six digit display. Total and rate
displays may be reversed.
Pulse input This disc in the lower left hand
indicator corner of the display 'rotates' for
two seconds each time an input
pulse is received on either input.
Appears to rotate continuously
when input frequency on either
input exceeds 0.5Hz.
Reset Activated while the total display
annunciator is being reset via the front panel
push buttons, or the external reset
terminals.
Rate Identifies rate display
annunciator
Total Identifies 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.
6

3. CERTIFICATION
The BA364NG has ATEX and IECEx Ex nA gas and
Ex tc dust certification. The main sections of this
instruction manual describes ATEX gas certification.
ATEX dust certification is described in Appendix 1 and
IECEx gas and dust certification in Appendix 2. The
BA364NG also has ETL and cETL certification for
applications in the USA and Canada. See
Appendix 3.
3.1 ATEX Ex nA certification
Notified Body Intertek Testing and Certification Ltd
have issued the BA364NG with a Type Examination
Certificate number ITS16ATEX48409X. This has
been used to confirm compliance with the European
ATEX Directive for Group II, Category 3G equipment.
The instrument carries the Community Mark and,
subject to local codes of practice, may be installed in
any of the European Economic Area (EEA) member
countries and in the EEA EFTA states, Iceland,
Liechtenstein and Norway. ATEX certificates are also
acceptable in Switzerland and Turkey. The European
Commission's Blue Guide lists the member states,
overseas countries and territories that have adopted
harmonisation legislation.
This section of the instruction manual describes ATEX
installations in explosive gas atmospheres conforming
with EN 60079-14 Electrical installations design,
selection and erection. When designing systems for
installation outside the UK the local Code of Practice
should be consulted.
3.2 Zones, gas groups and T rating
The Counter has been certified as Group II Category
3G Ex ic nA IIC T5 Gc Ta = -40ºC to +60°C
apparatus. This is non-sparking apparatus complying
with EN 60079-15 Equipment protection by type of
protection 'n' that minimises the risk of arcs or sparks
capable of creating an ignition hazard occurring
during conditions of normal operation.
The Counter's front panel push button contacts are
non incendive and have been certified intrinsically
safe Ex ic as shown on the Type Examination
Certificate. This allows the Counter to be adjusted
and configured live when installed in Zone 2.
When connected to a suitable system the BA364NG
Counter may be installed in:
Zone 2 explosive gas air mixture not
likely to occur, and if it does
will only exist for a short time.
Be used with gases in groups:
Group A propane
Group B ethylene
Group C hydrogen
In gases that may safely be used with equipment
having a temperature classification of:
T1 450oC
T2 300oC
T3 200oC
T4 135oC
T5 100oC
At ambient temperatures between -40 and +60oC.
This allows use with all commonly used industrial
gases except carbon disulphide CS2.
3.3 Safety parameters
The certificate specifies input safety parameters in
normal operation i.e. without faults for all the
instrument terminals. Where only a voltage or
only a current is specified, the unspecified
parameter will be defined by components within
the BA364NG.
3.4 Special conditions for safe use
The Ex nA certificate has an ‘X’ suffix indicating
that the certificate defines special conditions for
safe use. These state that the BA364NG Counter
should be:
a. Supplied from a limited energy circuit with
output parameters in normal operation equal
to, or less than the instrument’s input
parameters. The certificate states that It is
not necessary to power the instrument from
an intrinsically safe interface, such as a
certified shunt diode safety barrier or a
galvanic isolator to comply with this
requirement.
b. Fitted with cable entry glands or conduit
fittings which maintain the impact and
ingress protection of the enclosure. Certified
Ex e or Ex n components satisfy these
requirements.
The BA364NG is supplied fitted with one
certified M20 stopping plug and one
temporary hole plug which should be
replaced with the required gland or conduit
fitting.
3.5 Power supply
The input safety parameters for the power supply
terminals 1 and 2 are:
Ui = 30V dc
Ii = 100mA
This allows the BA364NG to be powered from any
dc supply which in normal operation has an output
of less 30V and 100mA. See section 4.1 for
power supply recommendations.
7

3.6 Pulse input
The BA364NG Counter has two pulse inputs, A and b,
that may be individually configured for use with most
types of sensor. Each input is a separate Ex nA
circuit, although the negative side of each input is
internally connected to the negative side of the power
supply and reset terminal RS2. See Fig 1. The two
inputs should not be connected in parallel.
Some types of sensor that may be connected to the
BA364NG inputs, such as a switch contact or a 2-wire
proximity detector, require energising to determine
their state. For sensors requiring energising fitting an
external link between terminals 3 & 4 of the BA364NG
for input A and between terminals 7 & 8 for input b,
connects an internal 7V, 6mA supply to the respective
input. Energising is not required when a BA364NG
input is connected to a voltage pulse source.
Fitting an energising link changes the safety
parameters of each BA364NG input as shown in the
following table which also shows the types of sensor
requiring energising (link fitting).
Safety parameters
Input Output
Type of input Link *Ui Uo Io
Switch contact Yes 15V 10.5V 9.2mA
Proximity detector Yes 15V 10.5V 9.2mA
Open collector Yes 15V 10.5V 9.2mA
Magnetic pick-off No 30V 1.1V 0.5mA
Voltage input (low) No 30V 1.1V 0.5mA
Voltage input (high) No 30V 1.1V 0.5mA
*For input A link terminals 3 and 4
*For input b link terminals 7 and 8
3.7 Remote reset terminals
The BA364NG total display my be reset by
connecting the external reset terminals RS1 and RS2
together for more than one second. The two reset
terminals have the following safety parameters in
normal operation:
Ui = 30V
Uo = 3.8V
Io = 1mA
3.8 Certification label information
The Counter certification information label is fitted
in a recess on the top outer surface of the
instrument enclosure. It shows the ATEX and
IECEx certification information plus BEKA
associates name, location, year of manufacture
and the instrument serial number.
BA364NG Certification information label
8

4. SYSTEM DESIGN FOR HAZARDOUS AREAS
When correctly installed in Zone 2 the BA364NG
Counter may be connected to almost any apparatus
in the safe area and to Ex n, Ex e, Ex p and Ex d
protected apparatus located in Zone 2. Because the
BA364NG is not certified intrinsically safe it should not
be connected to an intrinsically safe system.
BEKA Application Guide AG310, Guide for Installation
of [extra low voltage d.c.] Ex nA instrumentation,
which can be downloaded from www.beka.co.uk,
contains explanations and recommendations for the
installation of Ex nA equipment.
In addition to being able to be connected to other
equipment in the safe area and in Zone 2, the
BA364NG may also be connected to suitably
protected and certified equipment located in Zone 1.
This is illustrated in Fig 5 and explained in Application
Guide AG310.
There are four design requirements:
1. The BA364NG should be powered from a circuit
that has output safety parameters in normal
operation equal to, or less than, the input safety
parameters for terminals 1 and specified by the
BA364NG ATEX Type Examination Certificate.
2. BA364NG input and reset terminals should only
be connected to circuits having safety
parameters in normal operation compliant with
the BA364NG safety parameters which are
specified by the ATEX Type Examination
Certificate.
3. Hazardous area apparatus to which the
BA364NG is connected should be protected
by a technique suitable for the Zone in which
the equipment is located such as Ex n or Ex e if
located in Zone 2. Equipment protected by
intrinsic safety should not be connected to a
BA364NG.
4. Wiring should comply with Clause 9 of
EN 60079-14.
When designing a system it is important to remember
that terminals 2, 6 and RS2 are interconnected within
the BA364NG. See Fig 1.
4.1 Power supply
The BA364NG Counter requires a minimum of 10V
between terminal 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
A 24V dc regulated, current limited supply located
in a safe area is suitable.
The power supply should meet the requirements
for personnel safety so that ‘live maintenance’ can
safely be performed. The implicit requirement for
galvanic isolation from the mains supply ensures
that the possible difficulties from circulating earth
currents caused by mains faults is minimised. In
European terms if the power supply is CE marked
it is almost certainly acceptable.
To comply with the requirements of EN 60079:14
Electrical installations design, selection and
erection, each of the wires entering the hazardous
area should be individually fused and contain a
means of isolation. These two requirements may
be satisfied by using DIN rail mounted terminals
incorporating easily removable fuses which can be
extracted to achieve isolation as shown in Fig 2.
If an input current safety parameter Ii is specified, a
suitably rated fuse will ensure that it is not
continuously exceeded in normal operation.
Clear identification of, and easy access to the
means of isolation is essential for their effective
use. It is also necessary to ensure that the
maintenance procedure makes sure that
unauthorised re-closure of the switches does not
occur.
It is not considered necessary to have a means of
isolation or electrical protection for the screen.
Fig 2 DIN rail mounting terminals incorporating a
fuse.
For some applications Ex nA instrumentation
energised by a current limited power supply or
instrument that can be switched off, is considered
adequate and to comply with the requirements of
the standard.
9

4.2 Pulse inputs
The BA364NG can display the total numer of pulses
received and their rate from a wide variety of pulse
output sensors located in a Zone 2 hazardous areas
or in a safe area. Fig 3 shows the connections when
the sensors are located in Zone 2 and Fig 4 the
connections required when the sensors are in a safe
area.
Terminals 2, 6, 10 and RS2 of the BA364NG Counter
are internally connected together. If any of these
terminals are earthed, as shown in Figs 2 & 3, the
other terminals should only be connected to the same
earth, or to circuits that have 500V rms insulation to
earth.
Fig 2 illustrates the basic circuit that is used for all
BA364NG Counter installations. For simplicity,
connections for the pulse output, optional alarms and
optional 4/20mA output are shown separately in
sections 7 and 10 of this manual.
Fig 3 BA364NG used with Zener barriers
Alternatively the pulse sources may be located in the
safe area as shown in Fig 4.
When designing a system it is important to
remember that terminals 2, 6, 10 and RS2 are
interconnected within the BA364NG See Fig 1.
Fig 4 BA364NG used with Zener barriers
pulse source in safe area.
4.2.1 Input switching thresholds
For reliable totalisation the Counter pulse input
must fall below the lower threshold and rise above
the upper thresholds shown in the following table.
Input transducer
Switching thresholds
Lower Upper
Open collector 2k10k
Voltage pulse low 1.0V 3.0V
Voltage pulse high 3.0V 10.0V
Magnetic pick-off 0mV 40mV peak
Proximity detector 1.2mA 2.1mA
Switch 1001000
Switch contact, proximity detector and open
collector sensors require energising which is
achieved by linking Counter terminals 3 and 4 for
input A and terminals 7 and 8 for input b.
4.2.2 Switch contact input
Any mechanically or magnetically activated switch
10

contact located in Zone 2 or in the safe area may be
directly connected to pulse input terminals 5 and 6
and to terminals 7 and 8. Both Counter pulse inputs
are non incendive, allowing connection to unprotected
switch contacts located in Zone 2. The switch sensor
and associated wiring should be able to withstand a
500V rms insulation test to earth. Most magnetically
activated reed relays comply with these requirements.
The BA364NG contains a configurable debounce
circuit to prevent contact bounce being counted. See
section 6.6.
4.2.3 Open collector input
Sensors with an open collector output located in
Zone 2 or in the safe area may be directly connected
to input terminals 5 & 6 or to 7 & 8 providing the
Sensor and associated wiring can withstand a 500V
rms insulation test to earth.
The BA364NG contains a configurable debounce
circuit to prevent false triggering. See section 6.6.
4.2.5 Magnetic pick-off input
Sensors incorporating a magnetic pick-off will usually
have a low level ac voltage output which a BA364NG
Counter can sense when configured for a CoiL input.
The Counters input terminals may be connected to
any Zone 2 certified magnetic pick-off sensor,
providing the output in normal operation is equal to or
less than 30V the Counter's Ui. The sensor and
associated wiring should be able to withstand a 500V
rms insulation test to earth.
The BA364NG contains a configurable debounce
circuit to prevent false triggering. See section 6.6.
4.2.6 Voltage pulse input
Two voltage pulse input ranges are selectable in the
BA364NG Counters configuration menu, VoLt5 L and
VoLt5 H. The Counters input terminals may be
connected to any Zone 2 certified voltage pulse
output sensor, providing the output in normal
operation is equal to or less than 30V the Counter's
Ui. The sensor and associated wiring should be able
to withstand a 500V rms insulation test to earth.
The BA364NG contains a configurable debounce
circuit to prevent false triggering. See section 6.6.
4.3 Remote reset
The BA364NG Counter's total display may be
remotely reset by connecting terminals RS1 and
RS2 together. Permanent interconnection inhibits
counting. Remote resetting may be accomplished
by any mechanically operated switch located in the
same Zone 2 as the Counter. The reset circuit is
non incendive. The reset switch and the
associated wiring should be able to withstand a
500V rms insulation test to earth.
A BA364NG may also be remotely reset from the
safe area. Any switch may be used. Fig 4
illustrates how a BA364NG may be reset from both
the safe and the hazardous area.
The BA364NG total display may also be reset
when the &and *push buttons are operated
simultaneously in the totalising mode i.e. when the
instrument is counting. See 6.24
11

5. INSTALLATION
5.1 Location
The BA364NG Counter is housed in a robust IP66
glass reinforced polyester (GRP) enclosure
incorporating an armoured glass window and
stainless steel fittings making it suitable for exterior
mounting in most industrial on-shore and off-shore
installations. The Counter should be positioned
where the display is not in continuous direct sunlight.
Field wiring terminals are located on the rear of the
Counter assembly as shown in Fig 7.
To ensure electrical continuity between the two
conduit or cable entries, the enclosure back-box is
fitted with a bonding plate which includes an M4 earth
stud. This bonding plate may be mounted on the
inside or outside of the enclosure. If the carbon
loaded GRP enclosure is not bolted to an earthed
post or structure, this earth stud should be connected
to a local earth or the plant potential equalising
conductor.
An insulated M4 stud is provided in the bottom right
hand corner of the back-box for interconnecting cable
screens.
The BA364NG Counter may be pipe mounted using a
BA393G pipe mounting kit.
5.2 Installation Procedure
Fig 6 illustrates the instrument installation procedure.
A. Remove the Counter assembly by unscrewing
the four captive 'A' screws.
B. Mount the enclosure back-box on a flat surface
and secure with screws or bolts through the four
'B' holes. Alternatively use one of the pipe
mounting kits which are available as
accessories.
C. Remove the temporary hole plug and install an
appropriate IP and temperature rated M20 x
1.5mm cable gland or conduit fitting. If two
entries are required, the supplied IP66 stopping
plug should be replaced with an appropriate IP
and temperature rated M20 x 1.5mm cable gland
or conduit fitting.
D. Feed the field wiring through the cable entry in
the back-box and connect the wires to the
terminals on the rear of the instrument assembly
as shown in Fig 6. Tighten cable glands to
ensure they are sealed and replace the
instrument assembly on the back-box. Finally
evenly tighten the four 'A' screws.
Fig 5 BA364NG installation procedure
Fig 6 Dimensions and terminal connections
12

5.3 EMC
The BA364NG 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 in the
safe area.
5.4 Units of measurement and tag marking
on scale card.
The Counter's units of measurement and tag
information are shown on a scale card which slides
into the instrument.
New Counters are supplied with a printed scale card
showing the requested units of measurement and tag
information. If this information is not supplied when
the instrument is ordered, a blank scale card will be
fitted which can easily be marked on-site with a dry
transfer or a permanent marker. Custom printed
scale cards are available from BEKA associates as an
accessory.
To remove the scale card from a Counter carefully pull
the transparent tab at the rear of the instrument
assembly away from the assembly as shown in
Fig 8a.
Fig 7a Removing scale card
To replace the scale card carefully insert it into the
slot on the right hand side of the input terminals as
shown in Fig 8b. Force should be applied evenly to
both sides of the scale card to prevent it twisting.
The card should be inserted until about 2mm of the
transparent tab remains protruding.
Fig 7b Inserting scale card into the
instrument assembly.
13

6.0 CONFIGURATION & CALIBRATION
The BA364NG Counter is configured and calibrated
via four front panel push buttons. All the
configuration functions are contained in an easy to
use intuitive menu that is shown diagrammatically in
Fig 9.
Each menu function is summarised in section 6.3 of
this manual and each summary includes a reference
to more detailed information.
The isolated pulse output, including configuration, is
described in section 7 of this manual. When factory
fitted optional alarms and the optional 4/20mA output
are included, additional functions appear in the
configuration menu which are described in section 10
of this manual.
All new BA364NG Counters are supplied calibrated
as requested at the time of ordering. If calibration is
not requested, Counters will have factory default
configuration as shown in the following table, but can
easily be re-configured on-site.
Function Display Default
Input A inP .tYPE oP .CoL
Debounce dEbounCE dEFAuLt
Input b inP .tYPE oP .CoL
Debounce dEbounCE dEFAuLt
Counting edge A CntEdG-A EdGE 1
Counting edge b CntEdG-b EdGE 1
Update uPdAtE 0.5
Count Count A:b
Upper display di5p-1 totAL
Lower display di5P-2 on
Decimal point dP Rate 00000 .0
Tot al 00000000
Total scale factor 5CALE .t 001 .00
Rate scale factor 5CALE .r 001 .00
Timebase t-bA5E tb-01
Filter FiLter 24
Counter direction uP or dn uP
Clear value clr val 00000000
Local clear loc clr
Local total reset Clr tot oFF
Local grand total reset Clr Gtot oFF
Security code CodE 0000
Note: While the instrument is being configured
counting continues so that any input pulses occurring
during this time are recorded.
6.1 Calibration structure
Fig 8 shows the calibration structure of the BA364NG
Counter. The two pulse inputs are processed by the
count function to produce a single output having the
selected arithmetic function, such as the sum of pulse
input A and pulse input b. This output is passed to
the 5cALE . R and 5CALE .T functions allowing the rate
and total displays to have different engineering units.
5CALE .tis a dividing factor that converts the output
from the Counter function into the required total
display in engineering units. e.g. if the output from
the Counter function is two pulses per pump stroke
and a total display of thousands of pump strokes is
required, 5CALE .tshould be set to 2000.
5CALE .ris a dividing factor that converts the output
from the Counter function into a rate display with
the required engineering units. e.g. if the output
from the Counter function is two pulses per pump
stroke and it is required to display the pump stroke
rate, 5CALE .rshould be set to 2.
The timebase t-bA5E is a multiplying factor that
determines if the instrument displays rate per
second, per minute or per hour.
The BA364NG uses ‘real’ decimal points. Moving
the position of a decimal point in a scale factor will
affect the instrument calibration.
Fig 8 Calibration structure
14

6.2 Accessing configuration functions
Throughout this manual the instrument front panel
push buttons are shown as &, *, (and )and
legends displayed by the instrument are shown in a
seven segment font as displayed by the Counter e.g.
FiLtEr and 5CALE .r.
Access to the configuration menu is obtained by
operating the (and )push buttons
simultaneously. If the instrument is not protected by
a security code the first parameter inPut-A 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 inPut-A 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 display mode.
All configuration functions and prompts are shown on
the upper eight digit display.
Once within the configuration menu the required
function can be selected by scrolling through the
menu using the &and *push buttons. The
configuration menu is shown diagrammatically in
Fig 9.
When returning to the display mode following
reconfiguration, the BA364NG Counter will display
dAtA followed by 5AVE while the new information is
stored in permanent memory.
If after accessing the configuration menu the interval
between operating any front panel push button
exceeds one minute, the BA364NG will automatically
return to the display mode and any configuration
changes will not be stored in permanent memory.
When making changes to multiple configuration
functions, it is therefore sensible to occasionally
return to the display mode to save the changes that
have already been made.
6.3 Summary of configuration functions
This section summarises all the configuration
functions. When read in conjunction with Fig 9 it
provides a quick aid for configuring the Counter. If
more detail is required, each summary contains a
reference to a full description of the function.
Display Summary of function
inPut-A Contains sub-menu with two
functions:
inP .tYPE Select Input type
dEbounCE Set debounce
See section 6.4
inP .tYPE [for Input-A]
Configures input-A 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 *
*Link terminals 3 & 4
See section 6.5
dEbounCE [[[for Input-A]
Defines level of input debounce
applied to the pulse input A to
prevent false counting:
dEFAuLt
HEAVY
LiGHt
See section 6.6
inPut-b Contains sub-menu with two
functions:
inP .tYPE Select Input type
dEbounCE Set debounce
See section 6.7
inP .tYPE [for Input-b]
Configures input-b 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 *
*Link terminals 7 & 8
See section 6.8
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Display Summary of function
dEbounCE [for Input-b]
Defines level of input debounce
applied to the pulse input b to prevent
false counting:
dEFAuLt
HEAVY
LiGHt
See section 6.9
CntEdG-A Input A pulse counting edge
Defines whether the Counter is
incremented/decremented on the
leading or trailing edge of a pulse on
input A.
See section 6.10
CntEdG-b Input b pulse counting edge
Defines whether the Counter is
incremented/decremented on the
leading or trailing edge of a pulse on
input b.
See section 6.11
updAtE Display update interval
Defines the interval between display
updates between 0.5 and 5 seconds.
See section 6.12
Count Counting function
Defines the arithmetic relationship of
the two pulse inputs. The total
display can be derived from:
A:b Input A + Input b
A:-b Input A - Input b
A con b Input A controlled by
Input b.
a rel b Quadrature input
(for position display)
See section 6.13
di5P-1 Upper display
Defines whether rAtE or totAL is
shown on the upper display. The
other variable will be shown on the
lower display, providing the lower
display is on in function dI5P-2.
See section 6.14
Display Summary of function
di5P-2 Lower display
Turns the lower display, which
normally shows rate, on or oFF.
See section 6.15
dP Position of decimal points
Defines the position of the decimal
point in both the total and rate
displays.
See section 6.16
5CALE .tTotal Scale Factor
5CALE .tis a dividing factor that
converts the pulse output from
arithmetic Count function into the
required total display in
engineering units. 5CALE .tmay
be adjusted between. 0.0001 and
99999. e.g. if one pulse
represents 1 centimetre of
dispensed cable and the total
display is required in metres,
5CALE .tshould be set to 100.0
which is the number of centimetres
in a metre.
The total display is independent of
the rate display.
See section 6.17
5CALE .rRate scale factor
5CALE .ris a dividing factor that
converts the pulse output from the
arithmetic Count function into the
required rate display in
engineering units. 5CALE .rmay
be adjusted between 0.0001 and
99999. e.g. if one pulse
represents 2 pump strokes and the
rate display is required in pump
strokes, 5CALE .rshould be set to
0.5.
The rate display is independent of
the total display.
See section 6.18
t-bA5E Timebase
Selectable multiplier allowing rate
to be displayed in units per
second, per minute or per hour.
Select:
tb-01 for rate / second
tb-60 for rate / minute
tb-3600 for rate / hour
See section 6.19
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Display Summary of function
FiLtEr Display filter
Is an adjustable digital filter to reduce
the noise on the rate display. The
filter has two parameters each
represented by a digit adjustable
between 0 and 9. The first digit
defines the amount of filtering applied
to the display, the second digit the
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 6.20
up or dn Direction of count
Determines whether pulses at inputs
A and b increment or decrement the
total display.
See section 6.21
CLr VAL Reset value
Defines a preset number to which the
total display will be set when the
BA364NG Counter is locally or
remotely reset. Enables the
instrument to count down from a
preset number.
See section 6.22
LoC CLr Local reset
Contains sub-menu with two
functions enabling the total and the
grand total to be reset via the front
panel push buttons while the Counter
is in the display mode.
See section 6.23
Clr tot Local total reset
When on is selected total display is
reset when &and *buttons are
operated simultaneously for more
than 3 seconds in the display mode.
See section 6.24
Clr Gtot Local grand total reset
When on is selected the grand total
may be reset when )and *
buttons are operated simultaneously
for more than 10 seconds in the
display mode - see section 2.2 for
details.
Note: Once reset, the grand total can
not be restored.
See section 6.25
Display Summary of function
Clr Gtot Resets grand total to zero from
within configuration menu.
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 6.26
CodE Access 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.
See section 6.27
r5Et dEF Reset configuration to factory
defaults.
Returns the BA364NG Counter to
the factory defaults shown in
section 6.0 To prevent accidental
use the request must be confirmed
by entering 5urE before the reset
will be executed.
See section 6.28
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6.4 Input A: inPut-A
The Input A function contains two sub-functions
inP .tYPE and dEbounCE that define the type of input
and the amount of input noise rejection.
6.5 Input A type: inP.tYPE
inP .tYPE is a sub-menu in the inPut-A function which
defines the type of input sensor or input pulse that the
instrument will count at Input-A. To check or change
the type of input, select inPut-A in the configuration
menu and press (which will reveal the inP.tYPE
prompt, pressing (again will show the existing
Input-A setting. 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 of input may be selected:
Switching
thresholds
Low High
oP .CoL Open collector 22 10k
VoLt5L Voltage pulse low 113V
VoLt5H Voltage pulse high1310V
CoiL Magnetic pick-off 0 40mV
Pr .dEt Proximity detector 21.2 2.1mA
ContACt Switch contact 2100 1000
Notes:
1. Maximum voltage input +30V.
2. For sensors connected to Input-A that require
energising i.e. proximity detectors, switch
contacts or open collector sensors, terminals 3
& 4 of the BA364NG 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 6.6 for typical maximum counting
frequency.
6.6 Input A debounce: dEbouncE
dEbouncE is an adjustable sub-menu which
prevents the input miscounting when the input
pulse has noisy edges, such as those resulting
from a mechanical contact closing and bouncing.
The debounce function only applies to the input in
which the function is located.
Three levels of protection may be independently
selected for each input. The amount of debounce
applied depends upon the type of Counter input
that has been selected for the input in the
associated inP .tYPE function.
Select inPut-A 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 configuration menu.
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 Counter processes the input pulse. Input
switching thresholds are shown in section 6.5.
debounce
level
Min input pulse width
Type of Input
Contact All others
Default 1600µs 40µs
Heavy 3200µs 350µs
Light 400µs 5µs
The maximum counting frequency of the BA364NG
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 included for guidance. The maximum 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
debounce
level
Max counting frequency
Type of input
Contact All others
Default 250Hz 12kHz
Heavy 120Hz 2kHz
Light 1000Hz 100kHz
The minimum counting frequency is 0.01Hz. Below
this frequency the rate display will be forced to
zero.
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