Toshiba LF410, LF600, LF602 User Manual

Field Intelligent Device Series

Electromagnetic Flowmeter

Introduction

The electromagnetic flowmeter uses Faraday’s Law of electromagnetic induction to measure the process flow. The device consists of two units: a detector, through which the fluid to be measured flows and in which low-level signals proportional to flow rates are obtained; and a converter, which supplies excitation current to the detector, and amplifies the signals from the detector and then processes and converts the signals into the 4–20mAdc current signal or communication signal. Thanks to the unique patented magnetic field distribution technology, the meter is highly immune for upstream flow disturbances. Combined with multi-functional converter LF600 (combined type) or LF602 (separate type) equipped with its original noise-suppression circuit and arithmetic operation capability, LF410 has high tolerance to noise, giving stable output even for slurry fluid measurement. IR (Infrared) switches enable parameter setting of the converter without removing the cover. Flow direction can be set in either way, and its 128 x 128 dot matrix LCD display allows the LCD rotated to 90, 180 and 270 degrees with a software.

The AF900 hand-held terminal (HART* communicator) can be used to communicate with the flowmeter from a remote place. PROFIBUS-PA* interface is available as option.

*1: HART protocol (Highway Addressable Remote

Transducer) is a communication protocol for industrial sensors recommended by the HCF Communication Foundation).

*2: PROFIBUS is the communication protocol for the

factory automation and process automation that PROFIBUS Organization recommends. Instead of analog control with a conventional analog signal (4-20mA), it is one kind of the fieldbus which digitized all signals. Flowmeters support PROFIBUS-PA.

I/O

Power supply

Detector

Combined type

LF410/LF600 LF414/LF600

Converter

Signal cable

Terminal box

Figure1. Configuration

(HART

Detector

Separate type LF410/LF602 LF414/LF602

Power supply

I/O

LF410/LF600 LF410 LF602 LF414/LF600 LF414

Figure2. LF410 series Flowmeters

Specifications

 Overall Specifications

Measurement range in terms of flow velocity:

– 0.3 m/s to 0 –10 m/s (0 –1.0 ft/s to 0 – 32.8 ft/s).

0 0 – 0.1 m/s to 0 – 0.3 m/s (0 – 0.3 ft/s to 0 – 1.0 ft/s) range is available optionally.

Accuracy: See the following graph.

Pulse output:

Vs > 0.5 m/s (1.64 ft/s): +/ Vs < 0.5 m/s (1.64 ft/s): +/

1 mm/s (0.039 inch/s). Current output: plus +/ span)

Note: Span = Range in the magmeters.

Error

(% of rate)

5.0

4.0

3.0

2.0

1.0

0.0

0 1 2 10

0123

Note: The accuracy above is measured under standard

operating conditions using the weighing method at Toshiba's flow calibration facility.

*3: CE mark is under application.

LF410 /LF600 LF410 /LF602

15 to 200 mm (1/2" to 8")

Certification number

Z01207

0.5 % of rate.

0.3% of rate

8 uA (0.05 % of

Absolute figure

Flow Ve losity (m /s)

Accuracy

No. EJL-114B

LF410/LF600 LF410/LF602

Fluid conductivity: 5µS/cm minimum

Fluid temperature:

–10 to +180°C : Ceramic type (14 to 356 °F)

Note : 120°C (248°F) above is separate type

–10 to +120°C : tefolon PFA

(14 to 248°F)

Ambient temperature:

Without cFMus Approval:

20 to + 60 °C (-4 to 140 °F)

With cFMus Approval:

-10 to +45°C (14 to 113 °F)

Structure: NEMA 4X (IP 67) Watertight

Power consumption:

17W(27VA) or less

19W(29VA) or less (with PROFIBUS)

Conformance to European Community Directives:

EMC directive 89/336/EEC The low voltage 93/68/EEC PED 97/23/EC (Note 1)

Note : See table 2 for detail.

Approved hazardous location certifications:

Model: LF414/LF600 and LF414/LF602

cFMus explosion proof: FM Class I, Division 2, Groups A,B,C, and D. FM Class II, Division 2, Groups E, F and G. FM Class III.

Detector and converter combination:

LF410/LF600: Combined type for standard

specification.

LF410/LF602: Separate type for standard

specification.

LF414/LF600: Combined type with Ex approval

of Class I, Division 2 (cFMus).

LF414/LF602: Separate type with Ex approval

of Class I, Division 2 (cFMus).

 Model LF410 and LF414 Detectors

Mounting style: Wafer type

Fluid pressure:

0.1 to 2.0MPa

(-15 to 300psi, or -1.0 to 20 bar)

Note: The test pressure before shipping from the factory

is equal to twice the nominal pressure rating of the customer specified flange connection during 15 minutes.

Connection flange standards: ANSI 150, ANSI

300, BS10 and 16, DIN PN10 and PN16, JIS10K, JIS16K and JIS20K

Principal materials:

Case — 25 to 100mm (1” to 4”): stainless steel 15,

150, and 200mm (1/2”, 6”, and 8”): carbon steel

Linings — 15 to 100mm (1/2” to 4”): Ceramic

tube (std.) & teflon PFA (opt.)

150 and 200mm (6” to 8”): teflon PFA Electrodes — 316L stainless steel (std.) Grounding rings — 316 stainless steel (std.)

Note: See Table 3 for optional materials and other

related information.

Measuring tube material — 304 stainless steel

(in case of Teflon PFA lining)

Coating — 25 to 100mm (1” to 4”): no coating

(stainless steel body). 15, 150, and 200mm (1/2”, 6”, and 8”): phthalic acid resin coating with pearl-gray colored.

Heat shock resistance : for a ceramic tube detector

Heating: ΔT ≤ 150

Cooling: ΔT ≤ 100

Note: The above means that the ceramic tube detector

withstands the shock of sudden heating (temperature difference 150°C or less per

0.5seconds) and sudden cooling (temperature difference 100°C or less per 0.5seconds).

°C/0.5sec (302°F/0.5sec)

°C/0.5sec (212°F/0.5sec)

Dimensions and weights: See Figures 3 to 8.

Cable connection port: for separate type detectors.

Cable glands —

LF410: without cFMus approval

Provided as standard R(PT) 1/2 male screws.

LF414: with cFMus approval

Not provided 3/4-14NPT male screws are required.

Applicable diameter — 11 to 13mm

(0.433 to 0.512 inch)

 Model LF600 and LF602 converters

Input signals

Analog signal — the voltage signal from detector,

proportional to process flow rate (for LF602 separate type converter).

Digital input DI (opt.)

Signal type: 20 to 30Vdc voltage signal Input resistance: 2.7kΩ Number of inputs: one point

DI function — One of the following functions can

be assigned to the optional DI signal.

Range switching — Selects either the higher or

lower range in the unidirectional or bidirectional 2-range setting.

Totalizer control — Starts and stops the built-in

LF410/LF600 LF410/LF602

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 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

LF410/LF600 LF410/LF602

Cable connection ports:

Cable glands —

LF600 and LF602 without cFMus Approval:

Provided as standard OD of cableφ11~13mm Material Nylon 66 G (PF) 1/2 male screws.

Note: When PROFIBUS option is specified ,

cable grands size is φ6~8mm for signal cable, φ11~13mm for power cable.

LF600 and LF602 with cFMus Approval:

Not provided, 1/2-14NPT male screws are required.

Applicable diameter — 11 to 13mm

(0.433 to 0.512 inch)

Vibration resistance:

No resonance to the following levels of vibration:

• 10 to 150Hz with acceleration of 9.8m/s No defect in putting vibration to each

direction of 30Hz with 29.4 m/s2in 4h.

Note: Avoid using the flowmeter in an

environment with constant vibration.

Converter LF602 dimensions and weights:

See Figure 9 (for Separate type)

MTBF:220,000 hours at 25 deg.C (77 deg.F) based

on MIL-HDBK-217F

LF410/LF600 LF410/LF602

Installation

 Dimensions

Unit : mm

225

131

(35)

(L2)

143

ΦD1

BS16, DIN PN16 and JIS 10K dimensions:

Meter size

(mm)

15 70 252 49 approx. 5

Note: 1 inch = 25.4mm

(mm)

Weight

(kg)

ANSI class 150 and class 300 dimensions:

Meter size

(inch)

1/2 2.76 9.92 1.93 approx. 11

(inch)

Weight

(lb)

Figure 3. LF410/LF600 and LF414/LF600

flowmeters

Meter size 15mm (1/2")

The dimension of L1 is changed when the material of grounding ring is chosen Pt-Ir or Ta.

Meter size L1

15mm (1/2”) 77mm (3.03 inch)

25mm (1”) 95mm (3.74 inch)

40mm (1 1/2”) 115mm (4.53 inch)

50mm (2”) 126mm (4.96 inch)

80mm (3”) 126mm (4.96 inch) 100mm (4”) 136mm (5.35 inch) 150mm (6”) 242mm (9.53 inch) 200mm (8”) 312mm (12.28 inch)

Unit : mm

BS16, DIN PN16 and JIS 10K dimensions:

Meter size

(mm)

25 80 241 66 approx. 5

Note: 1 inch = 25.4mm

ANSI class 150 and class 300 dimensions:

Meter size

(inch)

1 3.15 9.48 2.60 approx. 11

Figure 4. LF410/LF600 and LF414/LF600

225

131

(L2)

(mm)

(inch)

(mm)

(inch)

flowmeters

Meter size 25mm (1")

ΦD1

(mm)

(inch)

133(35)

Weight

(kg)

Weight

(lb)

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