Flow Indicator Totalizer
E L E C T R O N I C S
SYSTEMS AND DEVICES
Flow Indicator Totalizer
Process Control Instrumentation
INTRODUCTION
Flow Indicators / Controllers play an important
part in any process industry. Quick and accurate
measurement / control of flow improves the final
product quality, reliability and reduce rejection.
Flow indication and totalisation is therefore one of
the prime considerations in any process industry.
The FIT 72 series is microcontroller based
programmable flow indicator/totalizer designed
for fast and accurate measurement/control. The
instrument is designed using highly reliable
electronic components. The process parameter is
displayed in digits, which gives better resolution
compared to analog indicator. The FIT 72 series
accepts 4 - 20 mA as input. The instrument is
immune to mechanical vibrations. Even the
mounting position will not affect the
measurement accuracy. The alfa numeric LCD
display allows better messaging and can also
PRINCIPLE OF OPERATION
APPLICATION
Field
Transducer
&
Transmitter
Signal
Conditioner
Amplifier
Display
Control
through
Contactor
Keyboard
Microcontroller
display unit of measurement. Use of highly reliable
electronic components with lowest temperature
coefficient ensure long and trouble free service. The
instrument is tested for its performance under various
climatic conditions. Wide ranges of measurements are
available depending on the sensor used.
The FIT 92 series flow controllers can be used in
monitoring and controlling continuous as well as batch
flow processes in almost any industry.
Relay
Field
FEATURES
Linear or Square root extractor type input
The FIT 92 series is based on the principle of a
high input impedance amplifier feeding a
microcontroller followed by a relay and an inbuilt
ADC. The signal from the transducer is fed to a
signal conditioning amplifier, output of which is
given to the 13 bit analog to digital convertor
which is inbuilt the microcontroller. This
microcontroller then switches the relay ON or
OFF depending upon the process value with
respect to the setpoint. Linearisation of the
transducer signal is done by software. The
microcontroller also drives the LCD display,
indicating the actual flow.
10 digit totaliser
Setpoint on flow or totaliser
LCD display with yellow back LED
Proven trouble-free field performance
Highly compact
Dust and vermin proof enclosure with epoxy
powder coating
Fast response time
Highly accurate
Maximum MTBF and minimum MTTR
Feather touch push button
Wide supply variation and environmental band
User friendly programming
A Reliable Source of Temperature Measurement and Control
SPECIFICATIONS
Model
: FIT 7223
Range
: Programmable from 0 to 9999
Decimal Position
: Selectable
Input
: 4 - 20 mA / 0 - 5 V DC
Input type
: Linear / Square root selectable
Indication
: 16 x 2 Alfa numeric LCD display
Back LED
: Yellow
Character size
: 3 (W) x 4.4 (H) mm
Indication acuracy
: +/- 0.1 % of fullscale +/- 1 digit
Totalizer display
: 10 digit
Flow Unit
: Selectable bet'n gram,litre, kilog,
galon, cubic feet, cubic mtr, ton
Time base
: Selectable bet'n secs, mins and hour
Power supply
: 230 V AC, +/- 10 % , 50 Hz
Relative Humidity
: 90 % Non Condensing
Power consumption : 6 VA
Setpoints
: Two (Configurable on flow or totaliser)
Control action
: ON / OFF
Set point Adjust
: Thr’ Flat Membrane key pads
On / Off differential
: From 0.1 to 9.9
Relay Output
: One set of potential free Relay contact
changeover contact rated 5 Amp
resistive at 230V AC.
Supply for Transmitter : 24 V DC +/- 1V, @30mA
Relay logic
: User selectable High or Low
Relay ON indication : By Red LED
Mounting
: Flush mounting
Enclosure
: IP 55 mild steel with power coating
Termination
: PBT
Dimensions (mm)
: 96 x 96 x 120 (D)
Ambient Temperature
: 0 to 55 oC
Accuracy deviation due to
o
Output (Optional)
: Isolated 4- 20 mA for retransmission
Maximum load for current output : 500 ohms
Interface (Optional) : RS 232 / RS 485
Protocol
: Modbus RTU
o
a) Temperature change : +/- 0.002 % / C , ref at 25 C
b) Supply Variation
: +/- 0.005 % / V
Recalibration
(if reqd)
: Thr’ front keypads
INSTALLATION
E L E C T R O N I C S
SYSTEMS AND DEVICES
Flow: 400.0 kg/hr
Totl: 3454545302
RL - 1
RL - 2
NC P NO NC P NO
13 14 15 16 17 18
96
92
F
1
2
3 4
5
1
E
N
P
Tx Rx G
+ -
+ -
2
230 V AC
RS 232
24 V DC
4-20 mA
Input
OUTPUT
FIT 7223
6
7
8
9 10 11 12
FLOW INDICATOR TOTALISER
92
96
ORDERING INFORMATION
Setpoints
ALSO SELECET
ESD ...
2 - Two
X2
X3
Panel
Cutout
3 - 92 x 92
X5
X4
X6
Input
Relay Output
Power Supply
Optional O/p
1 - 4 to 20 mA
2 - 0 to 5V DC
3 - Other
1- 1 C/O 5 Amp
2 - Other
1 - 230 V AC
2 - 110 V AC
3 - 24 V AC
4 - 24 V DC
5 - Other
1 - NIL
2 - RS 232
3 - RS 485
4 - 4 - 20mA
Retransmission
5 - Other
BACKEND
Flow Totaliser with Data Logging
Profile Controllers
Thermocouples
(2)
(3)
(1)
(1)
(1)
(1)
FRONT END
SAME RANGE
Pt - 100
Ordering eg. FIT 7223 - 1111
FIT 92
Setpoint
- Two
Panel cutout - 92 x 92 mm
Input
- 4- 20 mA
Relay output - 1 C/O 5 Amp
Power Supply - 230 V AC
Optional O/p - NIL
Alarm Annunciators
Automation Panels
Thermowells
Compensating Cables
E L E C T R O N I C S
SYSTEMS AND DEVICES
Process Control Instrumentation
ESD HOUSE,
55, Hadapsar Indl. Estate,
Pune - 411013 (INDIA).
Phone : (020) 26819611 to 15
Fax
: (020) 26871951
e-mail : sales@esd-india.com
Web : www.esd-india.com
An ISO 9001 : 2008 Organisation
Unspecified dimensions are in mm.
Photos not to the scale.
Due to continuous development above details are likely to change.
ESD / FIT /7223
FIT 72 X1
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