⎝⎛星力捕鱼⎞⎠

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technical article
Plastic pipe float flow meter Vertical installation angle between the center line of the flow meter and the plumb line
2012-3-13 14:04:49


的使用〔1〕仪表使用时,应先缓慢开启上游阀门至全开,然后用流量计下游的调节阀调节流量。 Use of plastic tube float flowmeter [1] When using the meter, the upstream valve should be slowly opened to full open, and then the flow rate should be adjusted with the regulating valve downstream of the flowmeter. When the meter is out of use, close the upstream valve slowly, and then close the flow regulating valve downstream of the meter. [2] The indication value of the meter is seen in the middle of the score line, and the indication value is read from the scale of the float according to the height of the float. 〔3〕 When the cone and float are contaminated, they should be cleaned in time. [4] Regularly check the flowmeter for errors. Once it exceeds the specified error, the float and cone should be replaced or recalibrated to obtain better accuracy. [5] When the measured fluid is inconsistent with the calibration medium of the flowmeter, the displayed value must be corrected.
安装 LZS plastic tube float flowmeter installation
(1) Before installation, the smooth support in the instrument should be gently taken out with tool nose pliers, and then reinstalled. During installation, pay attention to whether the rubber ring is installed in the groove of the pipe to prevent it. Leaking.
(2) The interface of the flowmeter can be matched with ABS plastic pipe or PVC plastic pipe with special dewatering adhesive connection. It can also be connected by plastic method and then connected with metal flange.
(3) The flowmeter must be installed vertically without obvious tilt. The installation height should be convenient for reading the float. When reading, the line of sight and the float should be horizontal. (General standard: The optimal flow rate required is 50% to 70% of the maximum flow rate of the flowmeter. Try not to use the highest number.)
(4) There should be a straight pipe section with 5 times the meter diameter at the inlet and outlet of the instrument.
(5) The pressure of the measured fluid must be stable. If the fluid pressure is unstable, it will cause the float to fluctuate and cannot be measured correctly. A buffer or a setter should be set upstream of the flow meter.

,小流量流量计,厂家价格型号规,KL-LZ系列金属管浮子流量计具有结构简单、工作可靠、适用范围广、测量准确、安装方便等特点,具有耐高温、耐高压、KL-LZ系列金属转子流量计有普通型和防腐蚀型.如果金属转子流量计测量的介质中含有铁磁性颗粒,就应在流量计入口处安装磁过滤器。 Plastic tube float flow meter , small flow meter, factory price model specifications, KL-LZ series metal tube float flow meter has the characteristics of simple structure, reliable operation, wide application range, accurate measurement, convenient installation, etc. KL-LZ series metal rotor flowmeters are of ordinary type and anti-corrosion type. If the medium measured by the metal rotor flowmeter contains ferromagnetic particles, a magnetic filter should be installed at the inlet of the flowmeter. Its material should be the same as the corresponding flow meter. 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 require high straight pipe sections; wide 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 dangerous 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.
Technical Parameters
Measuring range: water (20 ℃) 1-200000 l / h
Air (20 ° C, 0.113MPa) 0.03-4000m3 / h
See flow chart, 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 rating: 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 selection and order
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 thread specified by the user
Cable interface: 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 ms
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