FLOW
UNIVERSAL FLOW TRANSMITTER
MODEL UFT-1
DESCRIPTION
The
Model UFT-1 Universal Flow Transmitter
is a
solid-state, digital signal converter designed to operate
with Data Industrial 200 Series flow sensors. Both ana-
log (4-20 mA) and pulse outputs are available. The
Model UFT-1
may be mounted in an optional NEMA 4X
enclosure or with digital display of gpm or totalized flow
(in a non-watertight enclosure).
FEATURES
•
•
•
•
•
•
Analog and pulse outputs
Optional watertight (NEMA 4X) enclosure
Optional displays for flow rate and totalization
Low cost
Excitation voltage for flow sensors
LED indication of pulse activity
UFT-1
UFT-1E-1
APPLICATION
Analog Output (rate)
The
Model UFT-1
analog transmitter converts a Data
Industrial digital flow signal into a precalibrated 4-20 mA
signal. It must be calibrated for each Data Industrial flow
sensor installation. The pipe type, size, and maximum
flow rate must be specified at the time of order if 4-20
mA output is to be used.
Pulse Output (totalization)
The
Model UFT-1
pulse output divides the Data
Industrial digital flow signal by a jumper-selectable 10 or
100 position to provide a more usable digital pulse. The
pulse output is normally used where flow totalization is
required. A simple conversion formula, using the flow
factors for Data Industrial flow sensors on the next page,
can convert the digital pulses to totalized gallons.
The pulse output is an optoisolated transistor switch that
can be wired to source or sink pulses to totalizer equip-
ment.
Note: This unit is not intended for field setup or
field calibration.
3.25
(8.25)
in
(cm)
Pulse
Out +
Pulse
Out –
mA Signal
Out
XDCR
Signal In
24 VDC
Power
Common
2.19
(5.56)
SPECIFICATIONS
Supply voltage
Operating temp
Operating humidity
Output
Input
24 VDC @ 60 mA
32° to 140°F (0° to 60°C)
5% to 95% noncondensing
4-20 mA and solid-state switch
15-150 Hz full scale
(dry or electronic contact)
Max loop resistance
Output switch rating
Accuracy
Step response
4-20 mA output 750Ω @
24 VDC
40 VDC @ 200 mA
±0.5%
5 sec from 10% to 90%
2004 KELE CATALOG • www.kele.com • USA 888-397-5353 • International 901-382-6084
223
FLOW
DIMENSIONS
FLOW
UNIVERSAL FLOW TRANSMITTER
MODEL UFT-1
WIRING
Output Pulse Divider
Selection Jumper
Pulse
(10 or 100)
100
Out
10
Pulse
Out +
Pulse
Out –
mA Signal
Out
XDCR
Signal In
24 VDC
Power
XDCR
Sig In
PWR Common
Totalize
+
–
Power
Typical
Totalizer
Hookup
(red)
+
Flow
Sensor
(black)
–
+
4-20 mA
–
Output
Transducer Power Option Jumper
(Leave on for Data Industrial flow sensors.
Remove for devices with their own power supply.)
+
–
24 VDC
Power Supply
INSTALLATION AND CALIBRATION
The
UFT-1
transmitter can be mounted in any position. The
optional watertight enclosure provides a watertight seal
against contaminants. While field calibration is not required
with the
UFT-1,
flow conversion must be accomplished at the
monitoring computer. The information below is provided for
making the conversion calculations.
TABLE 1. FLOW FACTORS FOR DATA INDUSTRIAL
FLOW SENSORS
MODEL
PIPE
SIZE
in (cm)
FLOW
FACTOR
GALLONS/PULSE
JUMPER IN
JUMPER IN
10 POSITION 100 POSITION
FLOW RATE
Flow (gpm)
= (mA measured - 4 mA) x Maximum gpm
16
Maximum gpm is the flow rate at 20 mA output on the trans-
mitter and must be specified at the time the
UFT-1
is ordered
for proper calibration.
TOTALIZED FLOW
Totalized Gallons
= (Flow Factor) x (Output Divider) x (Total
Pulses)
For totalized m3, multiply the above by 0.00379.
Output Divider = 10 or 100 depending on jumper-selection.
Flow factors per pulse are shown in the table at the right.
228PV-1.5
228PV-2
228B-2
228C-2
250B-0.5
250B-0.75
250B-1
250B-1.25
250B-1.5
220B-2.5
220B
220B
220B
220B
220B
220B
220B
220B
220B
220B
1-1/2 (3.81)
2 (5.08)
2 (5.08)
2 (5.08)
1/2 (1.27)
3/4
(1.91)
1 (2.54)
1-1/4 (3.18)
1-1/2 (3.81)
2-1/2 (6.35)
3
(7.62)
4 (10.16)
5 (12.7)
6 (15.24)
8 (20.32)
10 (25.40)
12 (30.48)
14 (35.56)
16 (40.64)
18 (45.72)
0.03118
0.04611
0.04579
0.04731
0.005646
0.007514
0.007015
0.01280
0.01780
0.03800
0.07280
0.1396
0.2457
0.3611
0.6710
1.080
1.630
1.944
2.502
3.158
0.3118
0.4611
0.4579
0.4731
0.05646
0.07514
0.07015
0.1280
0.1780
0.3800
0.7280
1.396
2.457
3.611
6.710
10.80
16.30
19.44
25.02
31.58
3.118
4.611
4.579
4.731
0.5646
0.7514
0.7015
1.280
1.780
3.800
7.280
13.96
24.57
36.11
67.10
108.0
163.0
194.4
250.2
315.8
FLOW
Notes
1. Flow factors for
a
Model 225
and
226
are
the
same as
Model 220.
*2.
Flow factor for
Model 228S
is the
same as
228C.
3.
PV
Series
is
sized
for SCH 80 PVC pipe.
All other
series are sized
for SCH 40
black
iron pipe.
ORDERING INFORMATION
MODEL
UFT-1
UFT-1A
UFT-1E
UFT-1AE
DESCRIPTION
Universal Flow Transmitter Pulse Output Only
Universal Flow Transmitter with Pulse and Calibrated 4-20 mA Output*
Universal Flow Transmitter Pulse Output in NEMA 4X Enclosure
Universal Flow Transmitter with Pulse and Calibrated 4-20 mA Output* in NEMA 4X Enclosure
DISPLAY OPTION (enclosed models only)
1
Flow totalization only
2
Flow rate only
3
Flow totalization and flow rate **
1
Example:
UFT-1A-E-2
Basic transmitter with calibrated 4-20 mA flow rate
output (4 mA = no flow 20 mA = max flow), enclosed with LCD
flow rate indication
*
Pipe size and schedule and
maximum flow rate must be
specified at time of order.
**
When a UFT-1AE3 is ordered
the UFT-1A will be in one enclosure
and the Totalizer and Rate Display
will be in a separate enclosure.
UFT-1
224
2004 KELE CATALOG • www.kele.com • USA 888-397-5353 • International 901-382-6084
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