Instruction Manual

1. DESCRIPTION
The BA354E is a eld mounting, intrinsically safe, 4/20mA
rate totaliser primarily intended for use with owmeters. It
simultaneously displays the rate of ow (4/20mA current) and
the total ow in engineering units on separate displays. It is
loop powered but only introduces a 1.2V drop into the loop.
This abbreviated instruction sheet is intended to assist with
installation and commissioning, a comprehensive instruction
manual describing safety certication, system design and
conguration is available from the BEKA sales o󰀩ce or may be
downloaded from our website.
The BA354E has IECEx, ATEX and UKEX intrinsic safety
certication for use in ammable gas atmospheres. The
certication label, which is located on the top of the instrument
enclosure shows the certicate numbers and the certication
codes. Copies of certicates may be downloaded from our
website.
Gas certication label
CAUTION
Special conditions apply for installation in Zone0.
See certicates of full instruction manual
Dust certication is available as a factory option, which must be
requested when the instrument is ordered. The dust and gas
certication label is shown below.
Dust and gas certication label
For installations in the USA and Canada, versions with FM
and cFM approval are available.
2. INSTALLATION
The BA354E rate totaliser has a robust IP66 glass reinforced
polyester (GRP) enclosures incorporating an armoured glass
window and stainless steel ttings. It is suitable for exterior
mounting in most industrial environments.
It is surface mounting, but may be pipe mounted using one of
the accessory kits.
B
D
D
B
D
D
Step 3 and 4
Remove the temporary hole plug
and install appropriate IP rated
cable gland or conduit fitting and
terminate field wiring. Replace
the terminal cover and tighten the
two 'A' screws.
Step 2
Secure the instrument to a flat
surface with M6 screws through
the two 'B' holes. Alternatively
use a pipe mounting kit.
Step 1
Remove the terminal cover by
unscrewing the two 'A' screws
B
D
D
B
D
D
C
A
C
A
DISPLAY
DISPLAY
DISPLAY
A
A
C
C
Fig 1 shows the installation procedure.
The rate totaliser’s earth terminal is connected to the carbon
loaded GRP enclosure. If this enclosure is not bolted to
an earthed post or structure, the earth terminal should be
connected to the plant potential equalising conductor.
A bonding plate is provided to ensure electrical continuity
between the three conduit / cable entries.
Terminals 8, 9, 10 & 11 are only ttted when the rate totaliser
includes optional alarms. See full manual for details.
Terminals 12, 13 & 14 are only tted when the rate totaliser
includes an optional backlight. See full manual for details.
DISPLAY
91
141
212
Separate terminal
compartment
117
72
Two M6 clearance holes
for surface mounting
ATEX version: M20 x 1.5 tapped.
Supplied with two IP66 stopping
plugs & one temporary hole plug.
FM version: 22.25 Ø plain holes.
Terminals 2 & 4
internally linked
for joining return
4/20mA wire.
Terminials 5 & 6
internally linked
for joining cable
screens
Control
Cover
1110914 81312
4321
65E
++--+
+ -
Terminals for
optional alarm,
see full manual
Terminals for optional
backlight, see full manual
Separately
powered
Loop powered
Common
4/20mA input
RS2 RS1
RS2
Reset
RS1
Fig 2 Dimensions and terminal connections
EMC
For specied immunity all wiring should be in screened
twisted pairs, with the screens earthed in the safe area.
2 channel Zener barrier
28V; 93mA; 300Ω
diode return
Safe areaHazardous area
Load
Instrument
power
supply
+
0
Ex n
transmitter
4/20mA
3
RS1 RS2
Reset
4 2 1
6 5
DISPLAY
Fig 3 Typical measurement loop
Units of measurement & tag number
The BA354E has an escutcheon around the liquid crystal
display which can be supplied printed with any units of
measurement and tag information specied when the
instrument was ordered. If no information was supplied a
blank escutcheon will be tted but legends may be added
on-site via an embossed strip, dry transfer or a permanent
marker. Custom printed escutcheons are available from
BEKA as an accessory which should be tted on top of the
blank escutcheon. Do not remove the blank escutcheon.
To gain access to the escutcheon remove the terminal cover by
unscrewing the two ‘A’ screws which will reveal two concealed
‘D’ screws. If the instrument is tted with an external keypad,
also unscrew the two ‘C’ screws securing the keypad and
un-plug the ve way connector. Finally unscrew all four ‘D’
screws and carefully lift o󰀨 the front of the instrument. Add
the required legend to the escutcheon, or stick a new printed
self-adhesive escutcheon on top of the existing escutcheon.
3. OPERATION
The BA354E is controlled and congured via four push
buttons located behind the instrument control cover, or via an
optional keypad on the outside of the control cover. In the
display mode i.e. when the instrument is totalising, these push
buttons have the following functions:
P Displays input current in mA or as a percentage of
span. (congurable function)
Modied when optional alarms are tted.
▼ Shows rate display calibration at 4mA input
▲ Shows rate display calibration at 20mA input
E Shows time since instrument was powered or total
display was reset.
E+▼ Grand total
displays least signicant 8 digits
E+▲ Grand total
displays most signicant 8 digits
▼+▲ Resets total display
(congurable function)
P+▼ Shows rmware version
P+▲ Optional alarm setpoint access
P+E Access to conguration menu
Abbreviated Instructions for
BA354E intrinsically safe eld
mounting loop powered rate totaliser
Issue 4
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
E
P
TAG NUMBER
SCALE