UFT-1A-3 [ETC]
UNIVERSAL FLOW TRANSMITTER; UNIVERSAL流量变送器
| 型号： | UFT-1A-3 |
| 厂家： | 
ETC |
| 描述： | UNIVERSAL FLOW TRANSMITTER |
| 文件： | 总2页 (文件大小：69K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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).
UFT-1
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-1E-1
APPLICATION
Analog Output (rate)
DIMENSIONS
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.
in
(cm)
Pulse
Out +
Pulse Output (totalization)
Pulse
Out –
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.
mA Signal
Out
2.19
(5.56)
XDCR
Signal In
24 VDC
Power
Common
The pulse output is an optoisolated transistor switch that
can be wired to source or sink pulses to totalizer equip-
ment.
3.25
(8.25)
Note: This unit is not intended for field setup or
field calibration.
SPECIFICATIONS
Supply voltage
Operating temp
Operating humidity
Output
24 VDC @ 60 mA
Max loop resistance
4-20 mA output 750Ω @
24 VDC
40 VDC @ 200 mA
±0.5%
32° to 140°F (0° to 60°C)
5% to 95% noncondensing
4-20 mA and solid-state switch
15-150 Hz full scale
Output switch rating
Accuracy
Step response
Input
5 sec from 10% to 90%
(dry or electronic contact)
2004 KELE CATALOG • www.kele.com • USA 888-397-5353 • International 901-382-6084
223
FLOW
UNIVERSAL FLOW TRANSMITTER
MODEL UFT-1
WIRING
Pulse
Output Pulse Divider
Selection Jumper
Typical
Totalizer
Hookup
Totalize
Out +
+
Pulse
Out
Pulse
Out –
(10 or 100)
100
Power
–
mA Signal
Out
10
(red) +
Flow
Sensor
XDCR
Signal In
+
–
4-20 mA
Output
24 VDC
Power
(black)
–
XDCR
Sig In
Common
PWR
+
–
24 VDC
Transducer Power Option Jumper
(Leave on for Data Industrial flow sensors.
Remove for devices with their own power supply.)
Power Supply
INSTALLATION AND CALIBRATION
TABLE 1. FLOW FACTORS FOR DATA INDUSTRIAL
FLOW SENSORS
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.
MODEL
PIPE SIZE
in (cm)
FLOW
FACTOR JUMPER IN
10 POSITION 100 POSITION
GALLONS/PULSE
JUMPER IN
228PV-1.5 1-1/2 (3.81)
228PV-2
228B-2
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
0.3118
0.4611
0.4579
0.4731
0.05646
0.07514
0.07015
0.1280
0.1780
0.3800
0.7280
1.396
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
2 (5.08)
2 (5.08)
2 (5.08)
1/2 (1.27)
3/4 (1.91)
1 (2.54)
228C-2
250B-0.5
250B-0.75
250B-1
FLOW RATE
250B-1.25 1-1/4 (3.18)
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.
250B-1.5
220B-2.5
220B
220B
220B
220B
220B
220B
220B
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)
2.457
3.611
6.710
10.80
TOTALIZED FLOW
1.630
16.30
Totalized Gallons = (Flow Factor) x (Output Divider) x (Total
Pulses)
220B
220B
220B
1.944
19.44
2.502
25.02
3
For totalized m , multiply the above by 0.00379.
3.158
31.58
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.
Output Divider = 10 or 100 depending on jumper-selection.
Flow factors per pulse are shown in the table at the right.
All other series are sized for SCH 40 black iron pipe.
ORDERING INFORMATION
*
Pipe size and schedule and
maximum flow rate must be
specified at time of order.
MODEL DESCRIPTION
UFT-1
Universal Flow Transmitter Pulse Output Only
UFT-1A
UFT-1E
Universal Flow Transmitter with Pulse and Calibrated 4-20 mA Output*
Universal Flow Transmitter Pulse Output in NEMA 4X Enclosure
UFT-1AE Universal Flow Transmitter with Pulse and Calibrated 4-20 mA Output* in NEMA 4X Enclosure
**
When a UFT-1AE3 is ordered
DISPLAY OPTION (enclosed models only)
the UFT-1A will be in one enclosure
and the Totalizer and Rate Display
will be in a separate enclosure.
1
2
3
Flow totalization only
Flow rate only
Flow totalization and flow rate **
UFT-1
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
2004 KELE CATALOG • www.kele.com • USA 888-397-5353 • International 901-382-6084
224
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