Advisor A90 - BEKA associates Ltd

Advisor A90
1 2 3.9 0
123.90
1 2 3.9 0
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User definab
Universal process
panel meter with
multicolour display
u Multicolour display Power supply
10-36V dc or 115/230V ac
V
visible in all lighting conditions.
Optional dual alarms
I
Input
Optional isolated 4/20mA
output & 24V supply
u5 digit 11mm and
31 segment bargraph
display.
RTD
The A90 is a universal input panel meter
that can display current or voltage process
signals in engineering units and temperature
directly from a resistance thermometer.
The display, which can be configured to be
any colour with adjustable brightness, has a
high contrast allowing the meter to be read
in all lighting conditions from bright sunlight
to total darkness.
This second generation instrument has
been designed and built using the same
high quality techniques developed for our
industry standard hazardous area products.
The A90 is a tough instrument supported by
a three year guarantee.
The main application of the A90 is to
display a process variable or temperature in
meaningful engineering units within a
process area. The zero and span of the
display are independently adjustable
allowing the meter to be calibrated to
display any linear variable represented by
the input voltage or current. Maximum and
minimum display values can be shown and
a root extractor enables flow measurements
to be displayed in linear engineering units.
For weighing applications the A90
incorporates a tare function, including a
front panel tare annunciator.
A two or three wire resistance thermometer
may be directly connected to an A90 which
can display temperature in a variety of units
including °C and °F. The differential output
from two resistance thermometers can also
be displayed.
fitted with alarms the display colour can be
linked to the alarm status. For example, a
green display could indicate normal
operation, the display changing to red when
a high alarm occurs and to blue for a low
alarm. The display intensity is fully
adjustable preventing dazzle and preserving
operators night vision.
IP66 front panel protection and a
neoprene gasket to seal the joint between
the panel meter and the instrument panel,
make the instrument suitable for use in
areas that will be cleaned with a hose. To
simplify installation and maintenance, the
A90 meter has removable terminal blocks
allowing panel wiring to be completed
before the A90 meter is installed.
Units of measurement are shown on the
slide-in scale card which can be changed
on-site without removing the meter from the
instrument panel. Meters can be supplied
with a printed customer specified scale card
for no additional charge.
Optional alarms provide two channels,
each with a change over relay output which
may be independently configured as a high
or low alarm. The alarm set points may be
adjusted from within the configuration
menu, or from the meter display mode via a
separate optional security code. In addition
to changing the display colour when an
alarm is activated, display annunciators
show the status of both alarms.
The A90 meter is configured via four front
panel push buttons using a simple intuitive
menu structure. An optional security code
prevents accidental adjustment. Display
calibration may be performed using the
meter’s internal references or external
standards.
An isolated 4/20mA output is available as
a factory fitted option. The output comprises
a 4/20mA current sink and a 24V isolated
power supply. The output may be wired as
a current sink or as a current source and
may be configured to represent any part of
the meter display. When used as a current
sink, the isolated 24V supply may be used
to power a remote transmitter.
The colourful 11mm five digit display
and 31 segment bargraph employ a novel
technique that allows the display digits to be
in any colour on a black background. When
Other models in this range include the
A90-SS which has the same specification
but is housed in an impact resistant IP66
stainless steel panel mounting enclosure.
u dc and mains powered
models.
u Current, voltage or RTD input.
uOptional alarms,
isolated 4/20mA output
and transmitter power
supply.
u Easy on-site scale card installation.
u Max and min display
u96 x 48mm DIN
enclosure with IP66
front.
u 3 year guarantee
www.beka.co.uk/a90
BEKA associates Ltd. Old Charlton Rd.
Hitchin, Hertfordshire, SG5 2DA, U.K.
Tel. (01462) 438301 Fax (01462) 453971
e-mail sales@beka.co.uk www.beka.co.uk
DIMENSIONS (mm)
Display
Type
Span
Zero
Decimal point
Polarity
Zero blanking
Direction
Reading rate
Overrange
Negative liquid crystal with multicolour
backlight.
5 digits 11mm high and 31 segment
bargraph.
Adjustable between 0 and ±99999
Adjustable between 0 and ±99999
1 of 4 fixed positions, absent or automatic
Automatic minus sign
Blanked apart from 0 in front of decimal point
Display may increase or decrease with
increasing input.
4 per second
99999 or -99999 with all decimal points
and bargraph flashing.
Input
Current
Voltage
RTD
(Selectable on-site)
4 - 20mA or 0 - 50mA
0 - 100mV; 0 - 1V or 0 - 10V
Pt100 2-wire, 3-wire or differential,
includes configurable fault detection.
Push buttons
&
*
(
)
(Function in display mode)
Shows minimum diplay - other functions
configurable.
Shows maximum diplay - other functions
configurable.
Displays analogue input or a % of span,
has a modified function when optional
alarms are fitted.
Tare function - when enabled
Accuracy
At 20°C
Linearity
Root extracting (current
input only).
Temperature effect on:
Zero
Span
Current & voltage ±0.02% of span ±1 digit
2 wire & 3 wire RTD ±0.05% of span ±1 digit
Differential RTD ±0.1% of span ±1 digit
96
Advisor A90
8.8.8.8.8
E
Terminals for optional
alarms and 4/20mA
output are shown in
outline
TERMINAL CONNECTIONS
Type of input can be selected on-site
Current input
RTD input
Voltage input
Terminals for optional
4/20mA output
10 11 12 13 14 OR 10 11 12 13 14 OR 10 11 12 13 14
4-20mA
0-50mA
18 19 20 21
+
+
100mV
+ 1V
10V 0V
4/20mA
current sink
24V dc
Output
OR
Environmental
Operating temp
-40 to +55°C
Storage temp
-40 to +85°C
Humidity
to 95% at 40°C non condensing
Vibration
Report available
Enclosure
Front IP66, rear IP20
EMC Complies with 2014/30/EU
LVDComplies with 2014/35/EU
Isolation
ac supply
3kV rms
dc supply
1.5kV
Alarm contact
4kV rms
All other ciruits 500V rms
18 19 20 21
4/20mA
current source
1 2 3 4 5 6
7 8
NO NC NO NC
+
10-36V dc
OR
7 8
L N
Alarm 1 Alarm 2
Mechanical
Terminals
Power & alarms
Others
Weight
Removable with screw clamp
0.5 to 2.5mm² cable
0.5 to 1.5mm² cable
0.25kg
Accessories
Alarms
Output
Contact rating
Two alarm output relays each of which
may be independently configured as a high
or low, latching or non-latching alarms.
Single pole change over contact
250V 5A ac, 30V 5A dc
4/20mA output including
24V transmitter supply.
Isolated 4/20mA current sink. Can be
wired in series with 24V supply to produce
current source. When current source is
not required, 24V supply may be used to
power remote transmitter.
Scale card
Blank card fitted to each meter can
be supplied printed with specified
units of measurement for no
additional charge.
Tag legend Specified tag number or application
printed onto rear of the meter.
Provides impact and IP66 protection for
rear of instrument. #
BA495 rear cover
and sealing kit
Scale
card
P
±16µA at input ±1 digit
Less than 50ppm of span/°C
Less than 100ppm of span/°C
Recommended panel cut-out
90 +0.5 / -0.0 x 43.5 +0.5 / -0.0
Panel cut-out
65
10 to 36V dc
90 to 264V ac 47 - 63Hz
7.5
Supply Voltage
dc model
ac model
48
SPECIFICATION
# See accessory datasheet for details
Terminals for
optional alarms
Power supply
dc model
Power supply
115/230V ac model
HOW TO ORDER
Model number
Supply
Display mode
Input
Display at:
Zero
Span
Colour
Please specify
A90 panel meter
24V dc or 115/230V ac
Linear or root extracting *
Required input range
Accessories
Dual alarms
4/20mA output including
24V transmitter supply.
Scale card
Tag
Rear cover and sealing kit
Please specify if required
Alarms
]
XXXXX Include position of decimal
XXXXX
point & sign if negative. *
Required colour*
4/20mA output with Tx supply
Legend required
Legend required
BA495
* Will be set to display in green 0.00 at 4mA and 100.00 at 20mA with linear
input if calibration information is not supplied. Can easily be reconfigured
on-site.
3
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