BEKA BA507E User manual

1. DESCRIPTION
The BA507E, BA508E, BA527E and BA528E are panel
mounting, general purpose 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 Display Bezel size
BA507E 4 digits 15mm high 96 x 48mm
BA527E 5 digits 12.7mm high 96 x 48mm
and bargraph.
BA508E 4 digits 34mm high 144 x 72mm
BA528E 5 digits 29mm high 144 x 72mm
and bargraph.
This abbreviated instruction sheet is intended to assist with
installation and commissioning, a comprehensive ins-
truction manual describing system design and calibration is
available from the BEKA sales office or may be down-
loaded from the BEKA website.
2. INSTALLATION
All the models have IP66 front of panel protection but
should be shielded from direct sunlight and severe weather
conditions. The rear of each indicator has IP20 protection.
Cut-out di ensions
Recommended for all installations. Mandatory to achieve
an IP66 seal between the instrument & the panel
BA507E & BA527E
90 +0.5 -0.0 x 43.5 +0.5 -0.0
BA508E & BA528E
136 +0.5 -0.0 x 66.2 +0.5 -0.0
Fig 1 cut out dimensions & terminals
Fig 2 Installation procedure
EMC
For specified immunity all wiring should be in screened
twisted pairs, with the screens earthed at one point
Fig 3 Typical measurement loop
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.
Fig 4 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.
Align the self-adhesive
printed scale card onto
the flexible strip and
insert the strip into the
indicator as shown
above.
Fig 5 Fitting scale card to flexible strip
3. 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:
PWhile 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.
tWhile 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.
sWhile 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.
ENo function in the display mode unless the tare
function is being used.
P + tIndicator displays firmware number followed by
version.
P + sWhen 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 BA527E & BA528E have a bargraph
Issue 3
16th February 2023
BEKA associates Ltd. Old Charlton Rd, Hitchin,
Hertfordshire, SG5 2DA, UK Tel: [phone]
e-mail: [e-mail] web: www.beka.co.uk
Abbreviated Instruction for
BA507E, BA527E, BA508E & BA528E
general purpose, panel ounting loop
powered indicators
The BA507E, BA508E, BA527E & BA528E are CE
marked to show compliance with the European EMC
Directive 2004 108 EC
4. Insert panel clamp into recess
and gently pull it onto the dovetail.
Engage screw & turn clockwise
to tighten the clamp, fit the other
clamp(s). Recommended tightening
torque cNm (1.95lbf.in) Equivalent
to finger tight plus one half turn.
DO NOT OVERTIGHTEN
BA508E & BA5 8E require 4 clamps
for IP66 front panel sealing
2. Position
gasket
behind
instrument
bezel
3. Insert
instrument
into the panel
from the front
1. Align foot and body of panel
mounting clamp by turning
screw anticlockwise