BEKA BA354E Loop Powered Rate Totaliser Instruction Manual
- June 9, 2024
- BEKA
Table of Contents
BEKA BA354E Loop Powered Rate Totaliser
DESCRIPTION
The BA354E is a field mounting, intrinsically safe, 4/20mA rate totaliser
primarily intended for use with flowmeters. It simultaneously displays the
rate of flow (4/20mA current) and the total flow 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
certification, system design and configuration is available from the BEKA
sales office or may be downloaded from our website.
The BA354E has IECEx, ATEX and UKEX intrinsic safety certification for use in
flammable gas atmospheres. The certification label, which is located on the
top of the instrument enclosure shows the certificate numbers and the
certification codes. Copies of certificates may be downloaded from our
website.
- Gas certification label
CAUTION
Special conditions apply for installation in Zone0. See certificates of full
instruction manual
Dust certification is available as a factory option, which must be requested
when the instrument is ordered. The dust and gas certification label is shown
below.
- Dust and gas certification label
INSTALLATION
The BA354E rate totaliser has a robust IP66 glass reinforced polyester (GRP)
enclosures incorporating an armoured glass window and stainless steel
fittings. 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.
-
Step 1 Remove the terminal cover by unscrewing 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 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.
Dimensions
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 fittted when the rate totaliser includes
optional alarms. See full manual for details.
Terminals 12, 13 & 14 are only fitted when the rate totaliser includes an
optional backlight. See full manual for details.
- Dimensions and terminal connections
EMC
For specified immunity all wiring should be in screened twisted pairs, with
the screens earthed in the safe area.
- 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 specified
when the instrument was ordered. If no information was supplied a blank
escutcheon will be fitted 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 fitted 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 fitted with an external keypad, also unscrew the two ‘C’ screws securing
the keypad and un-plug the five way connector. Finally unscrew all four ‘D’
screws and carefully lift off 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.
OPERATION
The BA354E is controlled and configured 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. (configurable
function)
Modified when optional alarms are fitted.
---|---
| 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.
| Grand total displays least significant 8 digits
| Grand total displays most significant 8 digits
| Resets total display (configurable function)
| Shows firmware version
| Optional alarm setpoint access
P+E
| Grand total displays most significant 8 digits
CONFIGURATION
Totalisers are supplied calibrated as requested when ordered, if not specified
default configuration will be supplied but can easily be changed on-site.
Fig4 shows the location of each function within the configuration menu
with a brief summary of the function. Please refer to the full instruction
manual for detailed configuration information and for a description of the
lineariser and the optional dual alarms.
Access to the configuration menu is obtained by pressing the P and E buttons
simultaneously. If the totaliser security code is set to the default ‘0000’
the first parameter ‘FunC’ will be displayed. If the totaliser is protected by
a security code, ‘CodE’ will be displayed and the code must be entered to
obtain access to the menu.
Full manual, certificates, and datasheet can be downloaded from http://www.beka.co.uk/lprt1/
The BA354E is CE marked to show compliance with the European Explosive Atmospheres Directive 2014/34/EU and the European EMC Directive 2014/30/EU. It is also UKCA marked to show compliance with UK statutory requirements Equipment and Protective Systems Intended for Use in Potentially Explosive Atmospheres Regulations UKSI 2016:1107 (as amended) and with the Electromagnetic Compatibility Regulations UKSI 2016:1091 (as amended)
Customer Support
BEKA associates Ltd. Old Charlton Rd, Hitchin, Hertfordshire,
SG5 2DA, UK Tel: +44(0)1462 438301 e-mail:
[email protected]
web: www.beka.co.uk