GAS DETECTION SYSTEMS

Operating Principle
Fluid entering the meter first passes through an inlet flow straightener that reduces its turbulent flow pattern. Fluid then passes through the turbine, causing the turbine to rotate at a speed proportional to fluid velocity. As each turbine blade passes through the magnetic field generated by the meter's magnetic pickup, an AC voltage pulse is generated. These pulses provide an output frequency that is proportional to volumetric flow.
Technical Data
Output: Pulse/4-20mA;
Accuracy:±1.0 of Rate/±0.5% of Rate;
Operating Temp.:-20...+60°C;
Fluid Temp.: -20...+150°C;
Housing Material: SS304/SS316;
Rotor Material: 2Cr13/CD4MCu;
Bearing Material: Tungsten Carbide.
Flow Range

Diameter （mm）	Standard Range （m³/h）	Extended Range （m³/h）
4	0.04～0.25	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	0.8～15
40	2～20	1～20
50	4～40	2～40
65	7～70	4～70
80	10～100	5～100
100	20～200	10～200
125	25～250	13～250
150	30～300	15～300
200	80～800	40～800

Model Selection

Model	LWGY									Description
Diameter	XXX									DN4-DN200
Converter Type		N1								24V DC; Pulse output; No display
		N2								24V DC; Pulse output;No display; Ex
		A								24V DC; 4-20 mA output; Nodisplay; Ex
		E1								Battery power supply; No output; Ex; Digital Display
		E2								24V DC; 2-wire 4-20mA output;Ex; Digital Display
		E3								24V DC; Pulse output; Ex;Display
		E4								24V DC; 0-20mA output; EX; Digital display
		E5								24V DC; 3-wire 4-20mA / Pulse output; EX; Digital display
		M								220Vac; 4-20mA output; EX; Digital display
		FE								FE:Fluidwell E series converter
		FF								FF:Fluidwell F series converter
		Notice:								1)Modbus RS485 is optional for E2,E3,E4,E5 and M type
		Notice:								*2)Dual Power(24VDC+Battery) is optional for E2,E3,E4,E5,M*
Accuracy			10							±1.0% of Rate
			05							±0.5% of Rate
			02							±0.2% of Rate
Flow Range				S						Standard Range
Flow Range				E						Extended Range
Body Material					S4					SS304
					S6					SS316
					PL					Plastic (DN15-DN50)
Rotor Material						Cr				2Cr13
Rotor Material						CD				CD4MCu
Explosion Proof							BT			Exd II BT6
Explosion Proof							NA			No explosion proof
Connection								THM		Male thread; Available from DN4 … DN50
								THF		Female thread; Available from DN4 … DN50
								WAF		Wafer connection
								DXX		D16: DIN PN16 flange;D25: DIN PN25…
								AXX		A15: ANSI 150# flange;A30: ANSI 300#...
								JXX		J10: JIS 10K flange;J20: JIS 20K…
Temperature									T1	-20...+80 °C
									T2	-20...+120 °C
									T3	-20...+150 °C

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