Metal Tube Variable Area Flow Meter For Water/Gas/Liquid

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$713.96

Ex Tax: $713.96

Stock: In Stock
Model: RDDLZ-FLOW-MT
Weight: 1.00
SKU: RDDLZ-FLOW-MT

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LCD Display

Communication Output

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Metal tube variable area flow meter for sale, 4-20MA output, RS485, HART communication output optional. The flow meters can be used to detect the flow of liquids, gases and steam and are particularly suitable for flow measurement of low flow and small flow media.

Specification

Model	RDDLZ-LZ-20
Measuring Range	Water (20°C) (01-200000) L/h Air 20°C.0.1013MPa): (0.5~2000)m3/h
Range Ratio	Standard type 10:1 special type 20:1
Accuracy Class	Standard type 1.5 class, special type 1 class, gas type 1.5 class
Pressure Level	Standard type: DN15~DN50≤4.0MPa DN65~DN200≤ 1.6MPa
High Pressure Type	Temperature range: -80°C~200°C, DN15~DN100≤10MPa
Connection Method	Flange type,sanitary clamp type,common thread type,sanitary thread type
Medium Temperature	Standard type -20°C~120°C PTFE 0°C~80°C, high temperature type 120°C~450*C low temperature type -80°C-20°C
Ambient Temperature	Remote type: -40°C~+70°C (LCD will not be damaged) LCD normal operation at -20°C~+70°C, local pointer type, local alarm type: -40°C~+80°C
Power Supply	Standard type: 24VDC 2-wire (4 20) mA (12VDC ~32VDC)
Alarm Type	24VDC multi-wire (4 20)mA (12VDC~32VDC)
AC Type	(100~240) VAC 50Hz -60Hz
Battery Type	3.6V@9AH lithium battery, can last for three years
Load Characteristics	RLmax: 600 Intrinsically safe: 5000
Alarm Output	Upper and lower limit instantaneous flow alarm, optocoupler signal isolation Darlington tube output (internal 24VDC power supply maximum current 8mA. External power supply 250mA@36VDC)
	Local alarm type: upper limit, lower limit or upper and lower limit instantaneous flow alarm Reed switch switch alarm (contact capacity 1A@30VDC) optional normally open and normally closed
	The upper limit and lower limit alarm hold range is up to 60% of the range, and the minimum interval between the upper and lower limit alarms is 10% of the range
Pulse Output	The cumulative pulse output is an optocoupler signal isolated Darlington tube output (internal 24VDC power supply, maximum current 8mA)
Protection Class	IP65
Intrinsically Safe Parameters	Ui≤28V li≤100mA Pi≤0.7W Ci≤0.021 μF Li≈0mH

Dimension (unit:mm)

Line Size	A	B	Weight
DN15	133	139	3.6kg
DN25	121	139	5.5kg
DN32	121	139	6.1kg
DN40	121	139	6.6kg
DN50	106	158	9.6kg
DN80	93	158	13.35kg
DN100	83.5	179	16.9kg
DN150	64.5	234	23.4kg
DN200	29	234	48.6kg

Details

Installation Method

Horizontal installation

Parallel installation

Applications

Tips: What is the working principle of a metal tube variable area flow meter?

The metal tube variable area flow meter float is in the measuring tube. With the change of flow, the float moves upward, and the buoyancy of the float and the gravity of the float reach a balance at a certain position. At this time, the flow annulus area between the float and the orifice plate (or cone tube) remains constant. The area of the annular gap is proportional to the rising height of the float, that is, the rising position of the float in the measuring tube represents the flow rate, and the position of the changing float is transmitted by the internal magnet to the external indicator so that the indicator can correctly indicate the flow value at this time. . This makes the indicator housing, not in direct contact with the measuring tube, so even if limit switches or transmitters are installed, the instrument can be used under high temperature and high pressure working conditions.

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