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LWGY Series Liquid Turbine Flow Meter

1. High-definition LCD display;

2. Three-key parameter setting and debugging;

3.5-segment polyline correction function for non-linear signals ;

4. Linear current output;

5. Frequency pulse output: DC power can be used to supply power to the pulse output circuit. At this time, the meter can convert the mV pulse signal output by the turbine sensor into a standard TTL pulse,which can be used for linear signal users debugging.

Product Origin:
China
Item NO.:
LWGY -L-D-C3-10-S-S-
Shipping Port:
Huangpu port
Color:
Silver
Lead Time:
Spot
Payment:
TT
MOQ:
1
Price:
$249.5/set
Price Range:
1-5/249.5$

Product Details

Meter classification

1.According to the meter function, LWGY series turbine flowmeter can be divided into 2 categories, namely:

(1) turbine flow sensor / transmitter (2) intelligent display turbine flowmeter

2.Functional specifications

●Turbine flow sensor / transmitter

This type of turbine flow product itself does not have function of on-site display, only transmitte the flow signal far. The flow signal can be divided into pulse signal or current signal (4-20mA). The meter price is low, with high integration, and small volume,which is especially suitable for use with computer control systems such as secondary display, PLC and DCS.

According to different output signals, these products can be divided into LWGY-□ N-type and LWGY-□ A-type.

LWGY- N-type sensor: 24VDC power supply, three-wire pulse output, high level ≥8V, low level ≤0.8V; signal transmission distance is ≤1000 meters;

LWGY-□A type transmitter: 24VDC power supply, 2-wire 4-20mA output, signal transmission distance ≤1000

This type of turbine flow products are divided into basic type and explosion-proof type (Exdiict 6), and the shape is as shown in (Fig.1) (Fig.2).

Liquid turbine flowmeter classification

●Intelligent integrated turbine flowmeter

The double-row liquid crystal on-site displayc is used for the new intelligent meter integrating turbine flow sensor and display calculation using advanced ultra-low-power single-chip microcomputer technology adopts, which has the advantages of compact mechanism, intuitive and clear reading, high reliability, no external power interference, lightning strike resistance and low cost.The meter has three-point correction of the meter factor, intelligently compensates the nonlinear meter factor, and can be corrected on site. The high-definition liquid crystal display simultaneously displays instantaneous flow and cumulative flow, with clear function. All valid data is not lost after 10 years of power failure. This type of turbine flowmeter is explosion-proof， explosion-proof grade is: EXDIICT 6.

This type of turbine flowmeter can be divided into LWGY-□B type and LWGY-□C type according to the power supply mode and whether it has remote signal output.

LWGY-□B type: 3.0V/10AH lithium battery is uesd for the power supply (can run continuously for more than 4 years);no signal output function.

LWGY-□C type: 24VDC external power supply is used for the power supply, and outputs 4-20mA standard two-wire current signal, and HART communication or RS485 communication function can be increased according to different site needs.

Selection Instructions Table 1

Model								Description
LWGY—	□	/□	/□	/□	/□	/□	/□	Description
Nominal diameter	4							4mm
	6							6mm
	10							10mm
	15							15mm
	20							20mm
	25							25mm
	32							32mm
	40							40mm
	50							50mm
	65							65mm
	80							80mm
	100							100mm
	125							125mm
	150							150mm
	200							200mm
Type		N						Sensor type: +12V or +24V power supply, output three-wire pulse signal
		A						Transmitter type: +24V power supply, output 2-wire system 4~20mA
		B						Intelligent type: lithium battery power supply, field display no signal output
		C						Intelligent type: +24V power supply, field display and output 2-wire system 4~20mA
		C1						Intelligent type: +24V power supply, field display and RS485 communication protocol
		C2						Intelligent type: +24V power supply, field display and HART communication protocol
Accuracy grade			05					0.5 grade
			10					1.0 grade
			02					0.2 grade (need to negotiate orders, production cycle is longer)
Turbine type				W				Extended measurement range
Turbine type				S				Standard measurement range
Material					S			304 stainless steel
Material					L			316 (L) stainless steel
Explosion proof						N		Non-explosion proof type
Explosion proof						E		Explosion-proof tyoe，EXDIICT 6
Pressure grade							N	Normal (refer to Table 2)
Pressure grade							H(X)	High pressure (refer to Table 2)

Note: DN15~DN40 is normally threaded, if you want to use flange connection, please add "(FL)" after "nominal diameter".

For example, a flange connection type explosion-proof turbine flowmeter is used to measure diesel fuel with the pipeline of DN40. The field needs to display and transmit the current signal. The accuracy is 0.5 grade, with 304 stainless steel material, and the meter withstand pressure of 1.6MPa,and the range is standard. The product model shall be: LWGY-40(FL)/C/05/S/S/E/H16.

Installation Dimensions

Thread connection and flange connection are used for the installation of the sensor according to different specifications. The installation method is shown in Figure 4, Figure 5 and Figure 6. The installation dimensions are shown in Table 2.

Table 2

Nominal diameter（mm >	L(mm)	G	D(mm)	d(mm)	Number of holes
4	225	G1/2
6	225	G1/2
10	345	G1/2
15	75	G1	Ф65	Ф14	4
20	80	G1	Ф75	Ф14	4
25	100	G5/4	Ф85	Ф14	4
32	140	G2	Ф100	Ф14	4
40	140	G2	Ф110	Ф18	4
50	150	G5/2	Ф125	Ф18	4
65	170		Ф145	Ф18	4
80	200		Ф160	Ф18	8
100	220		Ф180	Ф18	8
125	250		Ф210	Ф18	8
150	300		Ф250	Ф22	8
200	360		Ф295	Ф22	12

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