EFT10 Electromagnetic Flow Transmitter

EFT10 Electromagnetic Flow Transmitter
Description
Spirax Sarco’s EFT10 Electromagnetic Flow Transmitter produces a clean and powerful bidirec­tional flow signal with unsurpassed fast response and uniquely high signal
strength.
By using an innovative and patented Pulsed Hy­brid method of coil excitation the EFT10
creates an ultra stable flow signal to media noise ratio up to 50 times higher than other
magmeter technologies.
The EFT10 is a versatile and advanced magmeter transmitter with a user-friendly keypad
for programming, a 10-year memory, batch control, RS485 Modbus interface, HART, two
4 -20mA outputs and a scalable pulse frequency output.
Features
• High excitation current (to 5.5 A base to peak) and high exciter frequency (40Hz to
33Hz) for all size full pipe sensors.
• 4 lines of 20 character alpha numeric, backlit display with sealed tactile feedback and
vandal resistant keyboard
• Suitable for problem media (mining, slurries, and low conductivity media)
• HART, Modbus RTU over RS-485, and two 4-20mA outputs
• Bi-directional flow measurement; accurately eliminates back flow from net totals
• Virtually immune to common noise effects, including eddy currents, radio frequency,
and variable frequency drives
• Reference coils to compensate for media temperature
Dimensions
Local regulation may restrict the use of this product below the conditions quoted. Limiting conditions refer to standard connections only.
In the interests of development and improvement of the product, we reserve the right to change the specification.
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EFT10 Electromagnetic Flow Transmitter
EFT10 Specifications
Enclosure
Wall mounted, UV resistant fiberglass with stainless steel screws
Front Panel Keypad
Tactile feedback, waterproof, vandal resistant
Environmental Protection
NEMA 4X (IP56)
Ambient Temperature
-4 to 140 °F (-20 to 60 °C)
Supply Voltage
120VAC 60Hz, 120VAC 50Hz, 230VAC 50Hz, 230VAC 60Hz
Power Consumption
EFT10 Transmitter 6 watts typical
Max for Sensors 65 watts typical
Diagnostics
All necessary diagnostics, readings and system status are available via the front panel keypad with­out
opening the door. A user security password is programmable, allowing revalidation of the magmeter’s
NIST traceable Calibration Certificates. A separate calibration box is not necessary
Windows Interface Program
Computer interface via RS-232 serial connection, enabling programming of setup, and downloading
diagnostics and status.
Magnetizing Current
Up to 5.5 A base to peak, depending on sensor size
Exciter Frequency
40Hz (with 60Hz supply) or 33.3Hz (with 50Hz supply)
Time Constant (T)
Minimum of 30 milliseconds
Signal Averaging (ST)
0 to 300 seconds
Optional Batch Control
For batch control, the total set amount is entered via the keypad and displayed. Keypad activation of
batch flow via a EFT10 relay initiates flow, counting from zero to the total set point amount.
Frequency Mode
0 - 1,000Hz, 0 - 2,000Hz, 0 - 5,000Hz, 0 - 10,000Hz
Analog Outputs
Two, 4-20mA outputs from separate terminals are available for bi-directional flow. Either may be
configured as an internally powered 2-wire output or an externally powered 2-wire output
Pulsed Outputs
An externally powered, 2 wired scaled output (for totalizing flow), or frequency output (for rate of flow)
Relay Outputs
Two user configurable form C (changeover) relays with contact rate 125VAC, 1A, 30VA
Contact Inputs
Two user configurable inputs, rated 12volts DC, 10 mA. These inputs require a contact closure or
transistor switch between the terminals.
Modbus Output
Modbus RS-485 ( RTU)
HART Output
Supports HART 7 protocol; HART registration pending
Input Impedance
1012 Ohms
Pre-Amp Supply
A pre-amp is supplied standard on all products, for use on media with conductivity > 0.8μS/cm
Maximum Cable Length
Max cable length for fluids with conductivity < 5 μS/cm, 50 feet
Max cable length for fluids with conductivity > 5μS/cm , 300 feet
UniMag products supported
Full pipe meters only. UniMag M, DT, DM, DL, Delta Kit, DeltaMass
Flow Range
0.6 to 32 feet/second (0.2 to 9.7 m/sec)
System Accuracy (with flow
tube)
UniMag M, DT, DM, and DL velocities +/- 0.5% of rate for flows to >8.0 fps; +/- 0.048 fps for flows <8.0
fps.
DeltaKit and DeltaMass +/- 1.0% of rate for flows to >8.0 fps ; +/-0.096 fps for flows to <8.0 fps
Approvals
UL pending
Part Numbers
DescriptionPart Number
EFT10
EFT10
EFT10
EFT10
with
with
with
with
120VAC,
120VAC,
230VAC,
230VAC,
60Hz
50Hz
50Hz
60Hz
power
power
power
power
EC007102
EC007100
EC007101
EC007103
Notes
2
The EFT10 Flow Transmitter must be operated in a safe area.
Currently the EFT10 is NOT PED approved for sales into European Union countries.
Spirax Sarco Inc. • 2150 Miller Drive • Longmont, CO 80501 • Telephone: (303) 682-7060 • Fax: (303) 682-7069
© Spirax Sarco, Inc. 2014
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