ZRN-LW turbine flowmeter

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First, use:
ZRN-LWGY turbine flow sensor and display instrument composed of turbine flowmeter sensor with high accuracy, good repeatability, simple operation, long life and other characteristics can be widely applied to the instantaneous flow volume in petroleum, chemical, metallurgy, paper and other industries measure liquids and volume total.

Second, characteristics:
• pressure loss is small, the impeller prevent corrosion.
• has a high resistance to electromagnetic interference and vibration resistance, long operating life and reliable performance.
• The use of advanced ultra-low-power single-chip microprocessor technology, machine function, low power consumption, superior performance. Intelligent traffic with non-linear precision compensation function display
Is Fixed formula accuracy of better than ± 0.02%.
• meter factor can be the key online settings, and displayed on the LCD screen, LCD screen, intuitive and clear, high reliability.
• using EEPROM cumulative flow meter factor power-down protection. Protection longer than 10 years.

LWGY Series turbine flowmeter intelligent integration is the use of advanced low-power single-chip microprocessor technology developed turbine flow sensor and display totalizer integration of new smart meters, with double LCD live display, with a compact body, intuitive readings clear high reliability, without outside power interference, anti-lightning, obvious low cost advantage. Meter with three meter factor correction coefficient nonlinear intelligent compensation instrument, and can be corrected on-site. High-definition LCD display also shows the instantaneous flow (four significant figures) and the cumulative flow (8 significant digits, with clear function) All valid data after power for 10 years is not lost class turbine flowmeters are explosion-proof products, explosion-proof grade:.. ExdIIBT6.

Class turbine flowmeter in accordance with power supply, the availability of remote signal output can be divided into LWGY- • B-type and LWGY- • C type.

LWGY- • B type: power supply with 3.2V10AH lithium battery (continuous operation for more than 4 years); no signal output.

LWGY- • C Type: power supply with 24VDC external power supply, the output of a standard two-wire 4-20mA current signal, and depending on the site needs, increase the RS485 or HART communication.

Second, product characteristics

1. High accuracy, usually up to ± 1% R, ± 0.5% R, high-precision up to ± 0.2% R;

2. The repeatability, short-term repeatability of up to 0.05% to 0.2%, it is due to good reproducibility, such as frequent calibration or online high accuracy calibration available in the trade settlement is the preferred flow meter ;

3. Have three o'clock meter factor correction coefficient nonlinear intelligent compensation instrument, and can be corrected on-site

4. All valid data after power for 10 years is not lost;

5. The width of the range, medium and large caliber up to 1:20, small caliber 1:10;

6. Compact and lightweight construction, easy installation and maintenance, flow capacity;

7. The application of coercive measure, the meter body does not have to hole, high pressure type instrument made easily;

8. The special sensor types, can be designed for all kinds of special-type sensor according to the special needs, such as low temperature, two-way type, underground type, sand and other special type;

9. Insertion can be made suitable for large diameter measurement, pressure loss, low price, time to drying out, easy installation and maintenance.

Third, the basic parameters and technical performance

1. Technical performance: Table 1

Meter diameter and connections	46101520253240 threaded connection
Meter diameter and connections	(1520253240) 506580100125150200 flange connection
Accuracy class	±0.5%R
Turndown ratio	1: 10; 1: 15; 1: 20
Meter Materials	304, 316 (L) stainless steel
Measured medium temperature (℃)	-20~+120℃
Environmental conditions	Temperature -10 ~ + 55 ℃, relative humidity of 5% to 90%, atmospheric pressure 86 ~ 106Kpa
output signal	4-20mADC current signal (LWGY- • C type)
Power supply	LWGY- • B type: Built-in lithium battery (can be used continuously for 3 years); LWGY- • C type: + 24VDC
Signal transmission lines	2 * 0.3 (two-wire)
Transmission distance	≤1000m
Signal line interface	Internal thread M20 * 1.5 (LWGY- • C type)
Explosion levels	ExdIIBT6
Protection class	IP65

2. Measuring range and working pressure: Table 2

Meter diameter (mm)	Normal flow range (m³/h)	Extended flow range (m³/h)	Conventional withstand pressure (MPa)	Special voltage level (MPa) (flange connection)
DN 4	0.04~0.25	0.04~0.4	6.3	121625
DN 6	0.1~0.6	0.06~0.6	6.3	121625
DN 10	0.2~1.2	0.15~1.5	6.3	121625
DN 15	0.6~6	0.4~8	6.32.5 (flange)	4.06.3121625
DN 20	0.8~8	0.45~9	6.32.5 (flange)	4.06.3121625
DN 25	1~10	0.5~10	6.32.5 (flange)	4.06.3121625
DN 32	1.5~15	0.8~15	6.32.5 (flange)	4.06.3121625
DN 40	2~20	1~20	6.32.5 (flange)	4.06.3121625
DN 50	4~40	2~40	2.5	4.06.3121625
DN 65	7~70	4~70	2.5	4.06.3121625
DN 80	10~100	5~100	2.5	4.06.3121625
DN 100	20~200	10~200	2.5	4.06.3121625
DN 125	25~250	13~250	1.6	2.54.0
DN 150	30~300	15~300	1.6	2.54.0
DN 200	80~800	40~800	1.6	2.54.0

Third, the main technical parameters:
• The flowmeter specifications, basic parameters and performance indicators
(Table II)
• Accuracy: 0.5, 1.0;
• Conditions of Use:
1, ambient temperature -20 ℃ ~ 50 ℃;
2, relative humidity: 5% to 95%;
3. measured medium temperature: -20 ℃ ~ 120 ℃;
4, atmospheric pressure: 86Kpa ~ 106Kpa;
5, explosion-proof grade: ibⅡBT4.
• Signal transmission distance: a sensor to monitor distances up to 1000m.

Fourth, the electrical characteristics:
1, the display mode:
(1) LWGY Remote Display: Pulse output (with indicator);
(2) LWY site Display: 7 LCD display cumulative flow units (m3)
7 LCD display instantaneous flow units (m3 / h)
(3) LWGB turbine flow transmitter: (with indicator).
2, the output function:
(1) LWGY pulse output, pp value is determined by the power supply;
(2) LWY available with pulse output or 4 ~ 20mA two-wire current output;
(3) LWGB 4 ~ 20mA two-wire current output.
3, Power supply:
(1) LWGY: DC5 ~ 24V;
(2) LWY: 3V lithium batteries installed in the inside of the instrument can be used continuously for more than eight years;
(3) LWGB: DC24V.
V. Selection Table

	ZRN-LWGY •	• ••	•	•	•	Description
class type	ZRN-LWGYA					Flow sensor pulse output three-wire, + 12V power supply;
	ZRN-LWGYB					Site display type 3V battery-powered;
	ZRN-LWGYC					Site display with 4 ~ 20mA or pulse output, + 24V power supply;
	ZRN-LWGYD					Flow Transmitter 4 ~ 20mA output, + 24V power supply;
public Say through path		4				Normal flow range m³/h	0.04~0.25	Extended flow range m³/h	0.04~0.4
		6					0.1~0.6		0.06~0.6
		10					0.2~1.2		0.15~1.5
		15					0.6~6		0.4~8
		20					0.8~8		0.45~9
		25					1~10		0.5~10
		32					1.5~15		0.75~15
		40					2~20		1~20
		50					4~40		2~40
		65					7~70		3.5~70
		80					10~100		5~100
		100					20~200		10~200
		125					25~250		12.5~250
		150					30~300		15~300
		200					80~800		40~800
Anti burst						Without marking, non-explosion-proof
Anti burst			B			Explosion-proof
Accuracy grade				A		Accuracy 0.2
				B		Accuracy 0.5
				C		Accuracy 1.0
turbine Types of					A	Normal flow range
turbine Types of					B	Extended flow range
Explanation: DN4 ~ DN10 diameter threaded or welded, equipped with front straight pipe and filters, a maximum pressure of 6.3MPa. DN15 ~ DN40 diameter sensor is threaded connection, the pressure is 2.5MPa. DN50 ~ DN200 diameter sensor flange connection, pressure is 1.6Mpa. DN15 ~ DN40 diameter Optional Front and rear with a straight pipe or union, carbon steel and stainless steel materials. For DN15 ~ DN40 diameter flange connections, when ordering. • high pressure type and special requirements when ordering.