Toshiba LF470/LF612 specifications TIC-LF470B, Communications output ：

TIC-LF470B

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.: 093BHEX

Standard Ident-No.: 9740HEX

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 one second increments)

“Field re-verification” Mag-Prover– Toshiba’s

Zero span calibration tool allows unit to be re-calibrated and verified using an internal software program. (For more information contact Toshiba International Corp.)

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 —

Provided as standard, OD of 11 to 13mm

Material Nylon 66

G (PF) 1/2 male screws

Applicable diameter —

0.433 to 0.512 inch (11 to 13mm)

Note: When PROFIBUS option is specified, cable gland size is φ 6～8mm for signal cable, φ11～13mm for power cable

Vibration resistance:

No resonance to the following levels of vibration:

•10 to 150Hz with acceleration of 9.8m/s2

•Vibration of 30Hz with 29.4 m/s2 in 4h in each direction will not cause any defect to unit.

Note: Avoid using the flowmeter in an environment with constant vibration.

Dimensions :

See Figure 5

MTBF:

Converter: 220,000 hours (25 years) at 77 °F (25 °C) based on strict military specification MIL-HDBK-217F

Detector: 350,000 hours (40 years) at 77 °F (25 °C) based on strict military specification MIL-HDBK-217F

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