Metal tube rotameter
variable area flowmeter is a kind of measuring meter which has local indication type and LCD displaying instantaneous/ accumulated flow rate, upper-limit and lower-limit alarm output, accumulative pulse output, batch control, standard two-wire 4-20mA current output, HART communi-cation, ect. Our product is good replacement of Krohne H250, rotameter and widely used in the process control of industrial automation.
High Accuracy Metal Tube Variable Area Rotameter
Series LZ50 variable-area flow-meter by float position and according to fluid dynamics and magnetic coupling system. Adopts rugged、all-metal construction and HART communication and especially foe indicatory the instantaneous flow value of liquids 、gases and vapor. So many wetted materials and the liquid is most select. The intrinsically flow-meter can be used in hazardous areas and install types are operating on the difference required .Others consumers through the LZ01 card what accordance with HRAT communication built into indicator can make the configuration、adjustment and monitor of progresses flow value by the PC phone or HART handle deal .Different installs type flow-meter have the local display indication、output、limit switch and accumulating function. The best accuracy and reliable suitable for difficult application and environment conditions like the petroleum、chemical、industry、fertilizer and so on.
The series LZ50 flow-meter consisted essentially of metering tube and indicator. Tapered tube and vertical float or orifice place built into measuring tube .The float will be state a position when liquid take from the tube and float stand the force of running. And then the annular-area by float and tapered tube or orifice id flow-value required. This is a dynamic balance which a stated flow –value will be match a stated annular-area that is a only position of float. The flow-value display by the magnetic where install in float and indicator built into magnetic coupling. Also can display the flow-rate through flow-meter card what accordance with HART communication built into indicator of the Output、alarm control and accumulate function.
Product Paramenters
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Measurement range
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Water (20℃): 16～150,000 l/h; Air(0.1013MPa,20℃): 0.5～4,000 m3 /h
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Accuracy
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Standard: ±1.5% FS; Special: ±1.0% FS
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Range rate
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10 : 1
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Nominal pressure
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Standard: DN15～DN50 PN4.0MPa；DN80～DN150 PN 1.6MPa
Special: DN15～DN50 PN25MPa；DN80～DN150 PN 16MPa
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Medium temperature
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Standard: -80℃～+300℃
PTFE Material: -25℃～+80℃
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Viscosity
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DN15: ＜30mPa·s; DN25: ＜180mPa·s; DN50～DN80: ＜220mPa·s
DN100～DN150: ＜300mPa·s
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Ambient temperature
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Local display: -40℃～+120℃; Remote transmit and accumulate: -40℃～+80℃
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Connect Flange
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Standard: DIN2501: DN15～DN50/PN4.0MPa RF; DN80～DN150/PN1.6MPa RF
ANSI B16.5: 1/2″～6″150 lbs or 300 lbs/RF
Special: as consumer，like HG、HGJ、GB、JB、SH standard
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Hearting jacket
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Pressure class: PN 1.6MPa
Connection flange: DN15/ PN 4.0
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Power supply
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24VDC or 3.6 supper lithium battery
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Explosive-proof
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Ex i a II CT6 or d II CT6
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Output
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4～20mA DC，with HART digital communication
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Electrical connection
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M20×1.5 or 1/2″NPT
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Heights size
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250mm (Vertical connection)
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Pressure loss
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2.0～25kPa (as flow table)
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Protection class
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IP65/IP67
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