LZ metal tube float flowmeter

Detail

Product overview

LZ series of metal tube float flowmeter is based on the float position measuring a variable area flow meter, adopts full metal structure, the concept of Modular design, because of its small size small pressure loss, large range than (10:1), installation, maintenance is convenient wait for a characteristic, therefore widely used in various industries are complex, bad environment, low for small flow velocity, the conditions of all kinds of harsh medium flow measurement and process control.

LZ series metal tube float meter series of products, according to different user needs in different occasions, there are a variety of measurement forms for users to choose, according to the output form is divided into local instructions far transmission type, control alarm type, according to the explosion-proof requirements classification, and can be divided into common type, essential safety type, isolation explosion-proof type three.

LZ series of metal tube float flowmeter adopted international advanced Honeywell non-contact detecting changes in the Angle of magnetic field of magnetic sensor, and matches by the Motorola microprocessor system, which can realize liquid crystal indicator, cumulative, far transmission (4 ~ 20mA), pulse output, upper and lower alarm output function, such as the type intelligent signal transmitter with and high precision and reliability, can replace imported the same type instrument, and has high cost performance, parameter calibration, power-fail protection, etc.

The design and production of LZ series metal tube float flowmeter also consider the requirements of the user process flow direction: SF10 vertical installation type, SF11 upper in and lower out installation type, SF12 side in and side out installation type, SF13 side in and side out installation type, SF14 thread connection type, SF14 sanitary clamp connection type, SF16 horizontal installation type, etc., the installation mode is optional.

Product features

Modular combination design, easy maintenance, normal use without maintenance
Uniaxial non-contact new magnetic coupling structure, more stable signal transmission
Double lines, large screen LCD display instantaneous, cumulative flow, with backlight
Intelligent with power down protection, data backup and recovery functions
All metal structure, anti - seismic, pressure - resistant, temperature - resistant, anti - corrosion
Short stroke, total height 250mm, more convenient design and installation

Structure and principle

LZ series metal tube float meter consists of two parts:

Sensors --- measuring tube and float;

Signal transmitter -- indicator;

There are four kinds of liquid contact materials for the sensor: stainless steel, hastelloy, titanium material and stainless steel PTFE lining;The user can according to the requirements of the different process stress and corrosive medium, choose different touch the liquid material, to meet the needs of the process of stress and corrosion medium, according to the requirements of the different measurement, users in the selection, can choose not indicator combination, to realize the different measurement requirements, specific indicator form see instructions ware system and its corresponding function.

LZ metal tube float flowmeter

Is the flow measurement by the indicator in the transmitter through coupling magnetic float position change to complete the flow indicator and signal remote transmission, when measured medium flowing through the measuring tube from bottom to top, float float by gravity, buoyancy and fluid flow vertically upward thrust balance, float the relatively static in a certain position, the ring size of the location with the float and cone tube, fluid velocity, the position of the float is corresponding to the size of the measured medium flow.

Technical parameters

Table 1

Measuring range	Water (2.5-10000L/h)
Measuring range	Air （0.07-3000m3/h）
Range ratio	10:1 (special type 20:1)
Precision grade	1.5 (special type 1.0)
Work pressure	DN15~DN50 PN4.0MPa（special type 25MPa）
	DN80~DN100 PN1.6MPa（special type 16MPa）
	Jacket pressure class: 1.6MPa
Medium temperature	Standard -8~+220℃
	High temperature type 300℃
	Lining PTFE type ≤ 85℃
Environment temperature	-40℃~+120℃ (electric remote transmission type ≤6℃)
Medium viscosity	DN15：≤ 5mPa.s(H15.1~H15.3) ≤ 30mPa.s(H15.4~H15.9)
Medium viscosity	DN25：≤250mPa.s DN50~DN150：≤300mPa.s
LCD	Instantaneous flow display value range 0~50000
LCD	Cumulative flow display value range: 0~99999999
Output	Standard two-wire system 4 ~ 20mA
	Minimum pulse interval is 50ms
	Alarm signal: open collector, MAX100mA@30VDC
Power supply	Standard 4VDC(10.8VDC ~ 36VDC)
	AC 220VAC(85 ~ 265VAC)
	Battery: 3.6@4AH NiMH battery
Connection method	Standard DIN2501 flange
	Special type: flange standard provided by customer
	Threaded connection type: DIN1851 or user specified
Electrical interface	M20×1.5、PG11、1/2"NPT
Overall height	Standard type: 250mm (except for other installation methods)
Protection level	IP65
Explosion-proof mark	Intrinsic Safety ExiaIICT 3 ～6
Flameproof	ExdIIBT4

Installation dimensions

1.LZ10 standard type (bottom in, top out) dimensions
LZ metal tube float flowmeter