Toshiba GF630 Manual page 4

Electromagnetic flowmeter
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GF630/LF620 GF632/LF622
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
Baud rate : 31.25kbps
Bus voltage : 9-30VDC
Consumption electric current of bus:less than 16mA
Manufacture Ident-No. : 093B
Standard Ident-No. : 9740
Slave address : 0-126 (Default address is 126)
Profile : Profile Ver.3.01 for Process Control
Devices
Function blocks : AI(Flow)×1 , Totalizer×1
•Modbus(opt.)
Physical layer : RS485
Protocol : Modbus
Mode : RTU
Baudrate : 4800, 9600, 19200bps
Data length : 8bit
Parity bit : None, Odd, Even
Stop bit : 1bit, 2bit
Error check : CRC-16
Max. station number : 32(with Master device)
Max. cable length : 1.2km (Note)
Note: This length is specification of 3 line
connection.
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, Modbus 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 one second
increments)
4
HEX
HEX
Zero and span calibration:
Built-in calibration signal source allows converter
unit check.
Conditions 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. The outputs and display will remain as
follows when power fails.
• 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 a
current signal output circuit to help protect the
meter from lightning and improve personnel
safety.
Case: Aluminum alloy (equal to IP 67)
Coating: Acrylic resin-baked coating, pearl–gray
colored
Cable connection port:
Cable glands —
LF620 and LF622 without cFMus Approval:
Provided as standard, G 1/2 male
screws.
OD of cableφ11 to 13mm
Material Nylon 66
G 1/2 male screws.
Note: When PROFIBUS or Modbus option
are specified , cable glands size is φ6~
8mm for signal cable, φ11~13mm for
power cable.
LF620F and LF622F with cFMus Approval:
Not provided, 1/2–14NPT male
screws are required.
Applicable diameter —
11 to 13mm (0.433 to 0.512 inch)
Note: When PROFIBUS option is specified, cable
gland size is φ6~8mm for signal cable, φ
11~13mm for power cable.

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