Metallic Tube Rotameter from China Manufacturer - Aister Instrument (Shanghai) Co., Ltd

Introduction Features Specifications Model Selection Application Installation

Introduction

Intelligent Vertical Display Variable Area Flowmeter adopts the international advanced Honeywell without contact and no hysteresis detecting changes in the Angle of magnetic field of magnetic sensor, and with high performance MCU,which can realize LCD display:the instantaneous flow, total flow,loop current. environment temperature,damping time,small signalremoval. Optional 4~20mA tranmission(with HART communication),pulse output, high and low limit alarm output function,etc,the type of intelligent signal transmitter has high precision and reliability,which can fully replace the same type imported instrument, and it also has high price performance, parameter standardization online and power failure protection,etc features.

Features

Fully welded stainless steel body, Durable using.

Independent of medium’s physical and chemical states such as conductivity, dielectric constants, etc.

Applicable for all kinds of medium environment such as corrosive, toxic and explosive one.

Interface measurement or level measurement of 2 kinds of medium with different density.

Easy-to-read displays on all flow meter types.

Two-wire 4~20mADC signal output available.

Specifications

Performance	Technical parameter
Measuring range	Water (20℃) 16~150000 l/h. Air(0.1013MPa 20℃) 0.5~4000 m3/h.
Range ratio	10:1(Special type 20:1).
Accuracy class	2.5(Special type 1.5% or 1.0%).
Working pressure	DN15~DN50 PN16 (Special type 2.5MPa). DN80~DN150 PN10 (Special type 1.6MPa). Pressure rating of jacket 1.6MPa.
Medium temperature	Normalized type -80℃~+220℃. High-temperature type 300℃. Lined with FEP type ≤85℃.
Ambient temperature	-40℃~+120℃(Remote display without LCD≤85℃). (Remote display with LCD≤70℃).
Dielectric viscosity	1/4” NPT, 3/8” NPT 1/2” NPT≤5mPa.s 3/4” NPT,1” NPT ≤250mPa.s
Output	Standard signal: two-wire system 4 ~ 20mA (with HART communication). Standard signal: three-wire system 0 ~ 10mA. Alarm signal:1.Two-way relay output. 2.One-way or two-approach switches . Pulse signal output: 0-1KHz isolated output.
Process connection	Standard type:24VDC±20%. AC type:220VAC(85~265VAC) (optional).
Connection mode	Flange Thread Tri-clamp
Levels of protection	IP65/IP67.
Ex-mark	Intrinsically safe:ExiaIICT3~6. Exd type:ExdIICT4~6.

Model Selection

01 Measure the medium, temperature, whether there is corrosion

02 Flow range and inside diameter of user pipe

03 Classification of process

04 Whether to local display

05 Working power supply

06 Signal output, communication

07 Whether to explosion-proof

08 Installation mode

09 Precision class

Application

Industrial process

Energy measurement

Environmental protection engineering

Transportation

Biotechnology

Scientific experiment

Marine meteorology

Rivers and lakes

Installation

Installed flowmeter should guarantee the entry ≥5DN straight pipe section，export straight pipe section not less than 250mm ；if the medium containing ferromagnetic material，magnetic filter should be installed in front of the flowmeter。（see magnetic filter and straight pipe section diamension diagram ）

1. For flow meter installed，ensure the measuring pipe perpendicularity is better than 5 and should be equipped with bypass,easy to maintain and clean and does not affect production..
2. Monitoring and control system in the control valve，should be installed downstream of the flowmeter.For gas measurement，Should ensure the working pressure is not less than 5 times of pressure loss of the flowmeter, to make stable work of the flowmeter.
3. Before install the flowmeter，The pipe should be welding slag purging clean；When installation to remove locking component in the flow meter;when used after installation，Slowly open the control valve，Avoid shock damage flow meter

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