Instruction Manual

1. DESCRIPTION
The BA337E and BA338E are panel mounting, intrinsically safe,
one input rate totalisers, primarily intended for use with pulse
output owmeters.
The two models are electrically similar, but have di󰀨erent size
displays and enclosures.
Model Displays Bezel size
BA337E 8 digits 9mm high 96 x 48mm
5 digits 6mm high
BA338E 8 digits 18mm high 144 x 72mm
5 digits 12mm high
This abbreviated instruction sheet is intended to assist with
installation, a comprehensive instruction manual describing safety
certication, system design and conguration may be downloaded
from the BEKA website or may be requested from the BEKA sales
o󰀩ce.
Both models have IECEx, ATEX and UKEX intrinsic safety
certication for use in ammable gas atmospheres. ETL and
cETL approval permits installation in the USA and Canada. The
certication information label, which is located on the top of the
instrument enclosure, shows the certication number and codes.
Other certications may be shown. Copies of certicates may be
down loaded from the BEKA website.
Typical certication information label
Special conditions for safe use
The IECEx, ATEX and UKEX certicates have an ‘X’ su󰀩x
indicating that special conditions apply for safe use.
WARNING
To avoid an electrostatic charge being generated instrument
enclosure should only be cleaned with a damp cloth.
2. INSTALLATION
Both models have IP66 front of panel protection but they should be
shielded from direct sunlight and severe weather conditions. The
rear of both models have IP20 protection.
Cut-out dimensions
Recommended for all installations. Mandatory to achieve IP66
seal between instrument and panel.
BA337E BA338E
90 +0.5/-0.0 x 43.5 +0.5/-0.0 136 +0.5/-0.0 x 66.2 +0.5/-0.0
657.548 / 72
96 / 144
+
A1 A2 A3 A4 P1 P2
+
Alarm 1
Alarm 2
Terminals for
optional dual alarms
Pulse output.
Optional on
BA337E
Terminals
for optional
4/20mA output
+
C1 C2 C3 C4
DISPLAY
Reset Add link
to energise
pulse
input
Pulse
input
Power
supply
10 to 28V dc
RS1 RS2 3 4
+
5 6
1 2
+
+
Support panel wiring to prevent vibration damage
Fig 1 Cut-out dimensions and terminals
4. Insert panel clamp into recess
and gently pull it onto the dovetail.
Engage screw & turn clockwise
to tighten the clamp, fit the other
clamp(s). Recommended tightening
torque 22cNm (1.95lbf.in) Equivalent
to finger tight plus one half turn.
DO NOT OVERTIGHTEN
BA338E requires 4 clamps
for IP66 front panel sealing
2. Position
gasket
behind
instrument
bezel
3. Insert
instrument
into the panel
from the front
1. Align foot and body of panel
mounting clamp by turning
screw anticlockwise
Fig 2 Installation procedure
EMC
For specied immunity all wiring should be in screened twisted
pairs with screens earthed at one point within the safe area.
DISPLAY
Single channel positive polarity
28V: 93mA Zener Barrier
Remote reset
in safe area
2 16 5
+
+
4 3
+
RS2 RS1
Voltage pulse
Magnetic pick-off
Proximity detector
Switch contact/
open collector
OR
N
S
Power
supply
External
reset
Single channel positive polarity
28V: 93mA Zener Barrier
6 5
No
link
4 3
Safe areaHazardous area
BA337E or BA338E
+
++
Fig 3 Use with Zener barriers
Scale card
The Rate Totaliser’s units of measurement are shown on a printed
scale card visible through a window at the right hand side of
the display. The scale card is mounted on a exible strip that is
inserted into a slot at the rear of the instrument as shown below
I
n
s
e
r
t
Unlock
Lock
Fig 4 Inserting exible strip carrying scale
card into slot at the rear of Rate Totaliser.
Thus the scale card can easily be changed without removing the
Rate Totaliser from the panel or opening the instrument enclosure.
New Rate Totalisers 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 tted.
A pack of self-adhesive scale cards printed with common units of
measurement is available as an accessory from BEKA associates.
Custom printed scale cards can also be supplied.
To change a scale card, unclip the protruding end of the exible
strip by gently pushing it upwards and pulling it out of the enclosure.
Peel the existing scale card from the exible strip and replace it with
a new printed card, which should be aligned as shown below. Do
not t a new scale card on top of an existing card.
Align the self-adhesive
printed scale card onto
the exible strip and
insert the strip into the
Rate Totaliser as shown.
Fig 5 Fitting scale card to exible strip
3. OPERATION
The Rate Totalisers are controlled by four front panel push buttons.
When in operating mode they have the following functions:
) + & Grand total - shows Lo followed by least signicant 8
digits of the 16 digit grand total.
) + * Grand total - shows Hi followed by the most signicant
8 digits of the 16 digit grand total.
& + * If Local Total Reset CLr tot in the conguration menu
has been activated, operating the & + * buttons for
three seconds will reset the total display to zero and
clear any pulses stored in the optional pulse output.
The Grand Total is not reset.
( + & Shows in succession, rmware version number,
instrument function totali5e and any output
accessories that are tted:
- A Dual Alarm Outputs
- P Pulse output tted to all BA338E
- C 4/20mA output.
( + * When optional alarms are tted provides direct access
to the alarm setpoints if A5CP (access setpoints) has
been enabled in the conguration menu.
( + ) Access to conguration menu.
Align on
these
edges
Scale
card
Align on
these
edges
Scale
card
BA338EBA337E
Abbreviated instructions for
BA337E and BA338E One input
intrinsically safe pulse input Rate Totalisers
Issue 3
24th November 2022
BEKA associates Ltd. Old Charlton Rd, Hitchin, Hertfordshire,
SG5 2DA, UK Tel: [phone] e-mail: [e-mail]
web: www.beka.co.uk
BA338E
BA337E