BEKA BA307E Intrinsically Safe Loop Powered Indicator Instruction Manual
- June 9, 2024
- BEKA
Table of Contents
BEKA BA307E Intrinsically Safe Loop Powered Indicator
DESCRIPTION
The BA307E, BA308E, BA327E and BA328E are panel mounting, intrinsically safe digital indicators that display the current flowing in a 4/20mA loop in engineering units. They are loop powered but only introduce a 1.2V drop.
The four models are electrically similar, but have different size displays and enclosures.
Model
- BA307E
- BA327E
- BA308E
- BA328E
Displays
- 4 digits 15mm high
- 5 digits 11mm high and bargraph.
- 4 digits 34mm high
- 5 digits 29mm high and bargraph.
Bezel size
- 96 x 48mm
- 96 x 48mm
- 144 x 72mm
- 144 x 72mm
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 the BEKA sales office or may be downloaded from the BEKA website.
All the models have IECEx ATEX and UKEX intrinsic safety certification for use in flammable gas & dust atmospheres. FM and cFM approval also permits installation in the USA and Canada. 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 down- loaded from our website.
Typical certification information label
Special conditions for safe use
The IECEx, ATEX and UKEX certificates have an ‘X’ suffix 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.
Special conditions also apply for use in IIIC conductive dusts – please see
full manual.
INSTALLATION
All the 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.
Cut-out dimensions
Recommended for all installations. Mandatory to achieve an IP66 seal between
the instrument & the panel
BA307E & BA327E
90 +0.5/-0.0 x 43.5 +0.5/-0.0
BA308E & BA328E
136 +0.5/-0.0 x 66.2 +0.5/-0.0
Abbreviated Instruction for
BA307E, BA327E, BA308E & BA328E intrinsically safe panel mounting loop powered
indicators
Issue 6 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
- Align foot and body of panel mounting clamp by turning screw anticlockwise
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.
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.
Align the self-adhesive printed scale card onto the flexible strip and insert the strip into the indicator as shown above.
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:
-
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.
-
No function in the display mode unless the tare function is being used.
-
Indicator displays firmware number followed by version.
-
When alarms are fitted provides direct access to the alarm setpoints if the ‘ACSP’ access setpoints in display mode function has been enabled.
-
Provides access to the configuration menu via optional security code.
Only the BA327E & BA328E have 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.
The BA307E, BA327E, BA308E and BA28E 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).
QR SCAN
Manuals, certificates and data-sheets can be downloaded from http://www.beka.co.uk/lpi2/