BEKA BA307NE Loop Powered Indicator User Manual
- June 9, 2024
- BEKA
Table of Contents
BEKA BA307NE Loop Powered Indicator User Manual
DESCRIPTION
The BA307NE and BA327NE are rugged certified Ex nA & Ex tc digital indicators housed in stainless steel panel mounting enclosures. They are loop powered by the 4/20mA input current which they can display in almost any engineering units.
The two models are electrically similar, but have different size displays.
Model
- BA307NE
- BA327NE
Display
- 4 digits 15mm high
- 5 digits 11mm high and bargraph.
This abbreviated instruction sheet is intended to assist with installation and commissioning, a comprehensive instruction manual describing safety certification, system design and calibration is available from BEKA sales office or may be downloaded from the BEKA website www.beka.co.uk
Typical certification information label
Special conditions for safe use
The IECEx, ATEX and UKEX certificates have an ‘X’ suffix indicating that special conditions apply
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a. The indicator must be installed in a panel that maintains at least one of the following types of protection:
Ex nA IIC Gc
Ex e IIC Gc
Ex p IIC Gc
Ex tc IIIC Dc -
b. When installed in an Ex e panel enclosure the indicator must be powered from a limited energy circuit.
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c. When installed in an Ex p panel enclosure the indicator must be powered from a limited energy circuit with a rated prospective current of less than 10kA and the four vents at the rear of the instrument must be unobstructed.
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d. When installed in an Ex tc panel enclosure the indicator must be powered from a limited energy circuit.
Please refer to the certificate or the full instruction manual for detailed certification information.
Compliance with UKCA requirements is based on the indicators ATEX certification.
INSTALLATION
Both models have IP66 front of panel protection but they should be shielded from direct sunlight and severe weather conditions. The rear of each indicator has IP20 protection.
Abbreviated instructions for
BA307NE & BA327NE rugged Ex nA & Ex tc panel mounting loop powered indicators
Issue 5
24th November 2022
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
EMC
For specified immunity all wiring should be in screened twisted pairs, with the screens earthed at one point within the safe area.
Scale card
The indicator’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 flexible strip that is inserted into a slot at
the rear of the instrument as shown below.
Inserting flexible strip carrying scale card into slot at the rear of indicator.
Thus the scale card can easily be changed without removing the indicator from the panel or opening the instrument enclosure.
New indicators are supplied with a printed scale card showing the requested units of measurement, if this information is not supplied when the indicator is ordered a blank card will be fitted.
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 flexible strip by
gently pushing it upwards and pulling it out of the enclosure. Peel the
existing scale card from the flexible strip and replace it with a new printed
card, which should be aligned as shown below.
Do not fit a new scale card on top of an existing card.
OPERATION
The indicators are controlled via four front panel push buttons. In the display mode i.e. when the indicator is displaying a process variable, these push buttons have the following functions:
P: While this button is pushed the indicator will display the input current in mA, or as a percentage of the instrument span depending upon how the indicator has been conditioned. When the button is released the normal display in engineering units will return. The function of this push button is modified when optional alarms are fitted to the indicator.
▼ While this button is pushed the indicator will display the numerical value and analogue bargraph* the indicator has been calibrated to display with 4mA input. When released the normal display in engineering units will return.
▲ While this button is pushed the indicator will display the numerical value and analogue bargraph* the indicator has been calibrated to display with 20mA input. When released the normal display in engineering units will return.
E: No function in the display mode unless the tare function is being used.
P + ▼: Indicator displays firmware number followed by version.
P + ▲: When optional alarms are fitted provides direct access to the alarm setpoints if the ‘ACSP’ access setpoints in display mode function has been enabled.
P + E: Provides access to the configuration menu via optional security code.
- Only the BA327NE has a bargraph
CONFIGURATION
Indicators are supplied calibrated as requested when ordered, if not specified default configuration will be supplied but can easily be changed on-site.
Fig 6 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 indicator security code is set to the default ‘0000’ the first parameter ‘FunC’ will be displayed. If the indicator is protected by a security code, ‘CodE’ will be displayed and the code must be entered to obtain access to the menu.
Manuals, certificates and datasheets can be downloaded from
http://www.beka.co.uk/lpi8/
The BA307NE and BA327NE are CE marked to show compliance with the European Explosive Atmospheres Directive 2014/34/EU and the European EMC Directive\ 2014/30/EU.
They are 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).