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technical article
Metal tube float flowmeter is suitable for small diameter and low flow medium flow measurement
2012-3-26 22:18:54

又称金属浮子流量计、金属管转子流量计和金属转子流量计。 SKLZ series metal tube float flowmeter is also called metal float flowmeter, metal tube rotor flowmeter and metal rotor flowmeter. It adopts the variable area measurement principle and is suitable for measuring liquids and gases. All metal structure, including pointer type, electric remote transmission type, corrosion resistance type, high voltage type, jacket type, explosion-proof type. With 0 ~ 10mA, 4 ~ 20mA standard analog signal output and on-site instructions, accumulation, digital communication, on-site modification of measurement parameters, different power supply functions, with magnetic filters and special specifications. Widely used in: petroleum, chemical, power generation, pharmaceutical, food, water treatment, etc. Complex, harsh environmental conditions, and various media conditions during flow measurement.
Metal tube float flowmeter is suitable for small-diameter and low-velocity medium flow measurement; reliable operation, low maintenance and long life; metal tube float flowmeter does not have high requirements for straight pipe sections; wider flow ratio is 10: 1; double line is large Liquid crystal display, optional on-site instantaneous / accumulated flow display, and single-axis sensitive indication with backlight; non-contact magnetic coupling transmission; metal tube float flowmeter full metal structure, suitable for high temperature, high pressure and strong corrosive media; can be used for flammable Explosive and hazardous occasions; optional two-wire system, battery, AC power supply mode; multi-parameter calibration function; metal tube float flow meter with data recovery, data backup and power failure protection functions.
principle:
The float is in the measuring tube. As the flow rate changes, the float is moved upward at a certain position. The buoyancy received by the float and the gravity of the float reach a balance. At this time, the area of the circulation annulus between the float and the orifice plate (or cone tube) is maintained to a certain degree. The area of the annulus is proportional to the height of the float. That is, the position of the float rising in the measuring tube represents the amount of flow. The magnet is transmitted to an external indicator, so that the indicator correctly indicates the flow value at this time. This makes the indicator housing not in direct contact with the measuring tube, so even if a limit switch or transmitter is installed, the instrument can be used under high temperature and high pressure working conditions.
Features:
1.Rugged all-metal structure design float meter
2.Measuring tube indicator designed with independent mnodular concept
3.Select stainless steel, Hastelloy, titanium, PTFE material measurement system
4.Low pressure loss design
5.Short stroke, small structure design, total instrument height 250
6.Magnetic coupling structure ensures data transmission and more stable signal
7, insulation or heat tracing jacket
8. Vertical, horizontal, and various installation methods are more suitable for different occasions. Technical parameter Measurement range: water (20 ℃) 1-200000 l / h
Air (20 ° C, 0.113MPa) 0.03-4000m3 / h
Refer to flow meter, special flow can be customized range ratio: standard type 10: 1 special type 20: 1
Accuracy: Standard type 1.5 Special type 1.0 Pressure level: Standard type: DN15-DN50 4.0MPa DN80-DN200 1.6MPa
Special type: DN15-DN50 25MPa DN80-DN200 16MPa
Jacket pressure rating is 1.6MPa
Special models should be negotiated with the factory before selecting and ordering pressure loss: 7kPa-70kPa
Medium temperature: standard type: -80 ℃-+ 200 ℃: PTFE: 0 ℃ -85 ℃
High temperature type: up to 400 ℃
Medium viscosity: DN15: <5mPa.s (F15.1-F15.3)
<30mPa.s (F15.4-F15.8)
DN25: <250mPFa.s
DN50-DN150: <300mPa.s
Ambient temperature: LCD type -30 ℃ - + 85 ℃
Pointer -40 ℃ - + 120 ℃
Connection form: standard type: DIN2501 standard flange special type: any standard flange or threaded cable interface specified by the user: M20 * 1.5
Power supply: standard 24VDC two-wire system 4-20mA (10.8VDC-36VDC)
AC type: 85-265VAC 50HZ
Battery type: 3. 6V @ 4AH Ni-MH battery alarm output: upper or lower limit instantaneous flow alarm standard type: open collector output (maximum 100mA @ 30VDC internal impedance 100 ohms)
Special type: relay output (contact capacity up to 5A @ 250VAC )
Pulse output: cumulative pulse output, minimum interval 50 milliseconds LCD display: instantaneous flow rate display value range: 0-50000
Accumulated flow display value range: 0-99999999
Protection level: IP65
Explosion-proof mark: intrinsically safe iaⅡCT6 flameproof dⅡCT6

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