Toshiba LF410/LF602, LF410/LF600 specifications Overall Specifications

Field Intelligent Device Series	LF410 /LF600
	LF410 /LF602
Electromagnetic Flowmeter
	15 to 200 mm (1/2" to 8")

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.

LF410/LF600	LF410	LF602
LF414/LF600	LF414

Figure2. LF410 series Flowmeters

*3

Certification number

Z01207

Specifications

Overall Specifications

The AF900 hand-held terminal (HART*1 communicator) can be used to communicate with the flowmeter from a remote place. PROFIBUS-PA*2interface is available as option.

*1: HART protocol (Highway Addressable Remote Transducer) is a communication protocol for industrial sensors recommended by the HCF (HART 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.

Measurement range in terms of flow velocity:

0 – 0.3 m/s to 0 –10 m/s (0 –1.0 ft/s to 0 – 32.8 ft/s). 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): +/-0.5 % of rate.

Vs < 0.5 m/s (1.64 ft/s): +/-0.3% of rate +/- 1 mm/s (0.039 inch/s).

Current output: plus +/-8 uA (0.05 % of span)

Note: Span = Range in the magmeters.

Converter	Converter
I/O
	Signal cable	Power
		supply
	Terminal box
Power
supply		I/O
Detector		Detector

Error	Absolute figure
(% of rate)

5.0
4.0
3.0
2.0
1.0
0.0 0	1	2	10

Flow Velosity (m/s)

Accuracy

Combined type	Separate type	Note: The accuracy above is measured under standard
LF410/LF600	LF410/LF602	operating conditions using the weighing method
LF414/LF600	LF414/LF602	at Toshiba's flow calibration facility.

Figure1. Configuration	*3: CE mark is under application.
	No. EJL-114B