Kofloc Catalog - Kofloc - (Version JPG) - Page n° 2 - PDF Catalogue | Technical Documentation

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Flow-meter, Thermal mass flow controller, Mass flow controller, Flow control valve, Nitrogen generator

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Small Karman Vortex Flow Meter for Liquids

FM0101/0102/0103/0105 series

KOFLOC's Karman Vortex Flow Meter FM Series provides an ideal tool for measuring and monitoring liquid flows, including cooling water and cleaning water. Since PPS resin is used for body material, all models of the series offer superior reliability and durability.

Features

• Simple design that minimizes a dead space

• Measurements of very small flows available (up to 0.5 L/min)

• Use of PPS resin has achieved a small, lightweight and rigid.

• The sensor can be used for pure water or deionyzed water and chemicals (the sensor is acid-/alkali-resistant).

• These models are in the process of application for CE Marking.

Standard Specifications


Model	FM0101	FM0102	FM0103	FM0105
Dimension (a)	17.8	17.5	17.5	32.5
Dimension (L)	80.6	80.0	80.0	110.0
Connection (X)	R3/8	R1/2	R1/2	25A
Flow range	0.5-4 L/min	2-16 L/min	4-40 L/min	10-150 L/min

Dimensions

FM0101-S-S-P

Without indicator

Fluids for measurement

Cooling water, cleaning water, etc.

Measuring accuracy

Within ±3.0% F.S


Repeatability	Within ±0.5% F.S	12.5
Outputs	S Type: 4-20mA
	P Type: Pulse (Open collector) (For w/o indicator only)
	D Type: With indicator
Supply voltage	12-24VDC
Liquid temperature range	0-70°c unim	^>
Proof pressure	1MPa HI	^>
Amb. temperature range	0-50°C p*	45
Amb. temperature range	0-50°C p*	L
Amb. humidity range	5-90%RH

FM0105-S-S-P

Without indicator

X (Connection)

2-Tr56.1x2.5

Applicable cleanliness/ waterproofing standards

IP64 (Splashproof construction per JIS C 0920)


				r
		-			-

	—			10		=
a			45			a
			L

Material for wetted part

PPS with 30% glass mixture

PPS w/o glass mixture

CAUTION:

DO NOT load excessive clamping torque on the sensor unit and setscrews as they are made of plastics.

W/o indicator: 2 meters long; terminated/pretinned (presoldered)

Cable length

With indicator: 3 meters long; terminated/pretinned (presoldered)

W/o indicator: 85 g (Sensor unit)

165 g (Sensor unit)

Weight

With indicator: 100 g (Sensor unit)

205 g (Sensor unit)

Note:

Tolerances for unspecified outside dimensions: ±0.8 Tolerances for other unspecified dimensions: ±0.4

Principle of Measurement

When a columnar object (object that generates vortices) is placed in the flow path of a fluid, regular channels of vortices, called Karman vortex channels, are generated at the back of the object. Since the frequency of a vortex generated is linearly proportional to the flow velocity within a given range, the flow amount can be measured by counting the number of vortices. These series models make use of this principle. When the frequency of each vortex generated is detected by the incorporated vortex detector (piezoelectric device), the signal processing circuit outputs a signal which is linearly proportional to volume flow.

Ordering

Flow range \—{~

Output^ P|N I /K

MODEL01 (PPS)

~01~

S=4-20mADC

P = Pulse

03 05

D = 4-20 mADC + Indicator

Columnar object (that generates vortices)

Refer to "Ordering" and "Illustrative Example" when placing an order or requesting a quotation. Fill in the blanks in the "Order/Quotation Request Card" at the end of the catalog, and send the card by fax.

Vortex detector

Karman vortices

Piezoelectric device

32 Bkgfldc

Kofloc Catalog - Kofloc - #2

Flow-meter, Thermal mass flow controller, Mass flow controller, Flow control valve, Nitrogen generator