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LF410/LF600 LF410/LF602
3
totalizer.
Fixed-value outputs — Outputs fixed-values for
current and pulse outputs.
Zero adjustment — Executes zero adjustment
(on-stream at zero flow rate).
Output signals
Current output:
4–20mAdc (load resistance 0 to 750Ω)
Note: The current output cannot be used with
the PROFIBUS-PA ccommunication.
Digital outputs — One point (std.) and one more
point is optionally available as follows.
Digital output DO1 (std.):
Output type: Transistor open collector
Number of outputs: One point
Output capacity: 30Vdc, 200mA maximum
Digital output DO2 (opt.):
Output type: Solidstate relay output (non
polarity)
Number of outputs: One point
Output capacity: 150Vdc, 150mA maximum
or 150 V ac (peak to peak), 100mA maximum
DO1 and DO2 functions — One of the following
functions can be assigned to DO1 (std.) and/or
DO2 (opt.)
• Pulse output (available only for DO1,DO2)
Pulse rate: 3.6 to 36,000,000 pulses/hr (DO1)
3.6 to 360,000 pulses/hr (DO2)
(Over 3,600,000 pulses/hr, auto-setting)
Pulse width: 0.5 to 500ms (but less than half of
the period for 100% flow rate)
Note: The same and simultaneous pulse is not
available between DO1 and DO2.)
• Multi-range selection outputs (Note 1)
• High, High high, Low, and/or Low low alarm
outputs (Note 2)
• Empty pipe alarm output
• Digital Output Active Status (DO1 and DO2)
(Note 2)
• Preset count output
• Converter failure alarm output
Note 1: Two outputs (DO1 and DO2) are needed for
4-range switching and forward/reverse
2-range switching.
Note 2: Normal Open (default set) or Normal Close
is selected for alarm outputs when
programming.
The Status when power failure is kept to
Normal Open.
Communications output ：
• HART(std.)
Digital signal is superimposed on 4–20mAdc
current signal as follows:
• Conforms to HART protocol
Load resistance: 240 to 750Ω
Load capacitance: 0.25µF maximum
Load inductance: 4mH maximum
• PROFIBUS (opt.)
Protocol : PROFIBUS-PA
Baurate : 31.25kbps
Bus voltage : 9-30Vdc
Consumption electric current of bus:less than
16mA
Manufacture Ident-No. : 093B
HEX
Standard Ident-No. : 9740
HEX
Slave address : 0-126 (Default address is 126)
Profile : Profile Ver.3.01 for Process Control
Devices
Function blocks : AI(Flow)×1 , Totalizer×1
LCD display: Full dot-matrix 128×128 dot LCD
display (back-light provided)
The data on the LCD inside the converter can
rotate to 90, 180, and 270 degrees by a software,
without rotating the indicator itself. (Combined
type only)
Parameter settings — Parameters can be set as
follows:
• IR Switches: Three key switches are provided to
set configuration parameters.
• Digital communication: The AF900 hand-held
terminal or PROFIBUS is needed to set
parameters.
•Zero adjustment: Zero point adjustment can be
started by pressing the switch in the converter.
Damping: 0.5 to 60 seconds (selectable in 1 second
increments)
Zero and span calibration: Built-in calibration
signal source allows converter unit check.
Conditions when power fails: The outputs and
display will remain as follows when power fails.
Parameter setting values are stored in non-volatile
memory and the values will be restored when the
power returns to normal condition.
• Current output: 0mAdc
• Digital output: OFF
• LCD display: No display
• PROFIBUS: No communication
Power supply: One of the following can be selected:
• 100 to 240Vac, 50/60Hz (std.)
(allowable voltage 80 to 264Vac)
• 24Vdc (allowable voltage 18 to 36Vdc)
• 110Vdc (allowable voltage 90 to 130Vdc)
Surge protection: Arresters are installed in the
power supply, and current signal output circuit.
Case: Aluminum alloy (equivalent of IP 67)
Coating: Acrylic resin-baked coating, pearl-gray
colored