BEKA BA384G Externally Powered Rate Totaliser Instruction Manual
- June 9, 2024
- BEKA
Table of Contents
BEKA BA384G Externally Powered Rate Totaliser
DESCRIPTION
The BA384G is a field mounting intrinsically safe, two input Rate Totaliser which will function with a wide variety of sensors. The instrument can display rate of flow and total flow of the two inputs and their sum or difference. This abbreviated instruction sheet is intended to assist with installation, a comprehensive instruction manual describing safety certification, system design and configuration may be downloaded from the BEKA website or may be requested from the BEKA sales office. The BA384G Rate Totaliser has IECEx, ATEX, UKEX, ETL and cETL intrinsic safety certification for use in flammable gas and dust atmospheres. The certification information label, which is located on the top of the instrument assembly, shows the certification numbers and codes. Other certifications may be shown. Copies of certificates may be downloaded from the BEKA website.
INSTALLATION
The BA384G Rate Totaliser has a robust IP66 glass reinforced polyester (GRP) carbon loaded enclosure incorporating an armoured glass window & stainless steel fittings. It is suitable for exterior surface mounting in most industrial environments, or pipe mounting using an accessory kit. If the enclosure is not bolted to an earthed post or structure, the earth terminal on the cable entry bonding plate, which may be assembled on the inside or outside of the enclosure, should be connected to local earthed metalwork or to the plant’s potential equalising conductor. Terminals A1, A2, A3 and A4 are only fitted when the Rate Totaliser includes optional alarms. Similarly terminals C1, C2, C3 and C4 are only fitted when the instrument has an optional 4/20mA output. See full manual for details.
Step A
Unscrew the four captive ‘A’ screws and separate the indicator assembly and
the back-box.
Step B
Secure the enclosure back-box to a flat surface with M6 screws through the
four ‘B’ holes. Alternatively use a pipe mounting kit.
Step C
Remove the temporary hole plug and install an appropriate IP rated cable gland
or conduit fitting. Feed the field wiring through the cable entry.
Step D
Terminate field wiring on the instrument assembly. Replace the assembly on the
enclosure back-box and tighten the four ‘A’ screws.
EMC
For specified immunity all wiring should be in screened twisted pairs with
screens earthed at one point within the safe area.
Scale card
The instrument’s units of measurement and tag information are shown above the
display on a slide-in scale card. New instruments are fitted with a scale card
showing the information specified when the instrument was ordered, if this was
not provided a blank scale card will be fitted which can easily be marked on-
site. Custom printed scale cards are available from BEKA associates.
To remove the scale card carefully pull the tab perpendicularly away from the instrument assembly. See Fig 2 for the location of the scale card tab.
To replace the scale card carefully insert it into the slot shown in Fig 2. 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.
OPERATION
The BA384G is controlled and configured via four front panel push buttons. In the display mode i.e. when the instrument is displaying flow the push button functions are:
- Scrolls both displays between:
- Input A
- Input b
- Input A + b or Input A – b which is configurable
- ) + & Grand total – shows lo followed by the least significant 8 digits of a 16 grand total.
- ) + * Grand total – shows hi followed by the most significant 8 digits of a 16 digit grand total. 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.
- To reset the grand total to zero from the operating mode press the ) and buttons 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.
- ( + & Shows each for 2 seconds: Firmware and version numbers Function of instrument: 2chtotal Options fitted
- A Alarm outputs
- P Pulse output (always fitted)
- c 4/20mA output
- ( + & 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
CONFIGURATION
Rate Totalisers are supplied configured as requested at time of ordering, if not specified default configuration will be supplied but can easily be changed on-site. Fig 5 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 description of optional outputs. Access to the configuration menu is obtained by pressing the ( and ) buttons simultaneously. If the Rate Totaliser’s security code is set to default 0000 the first parameter function will be displayed. If the instrument is protected by a security code, code will be displayed. The four digit code must be entered to gain access to the menu.
The BA384G 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).
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