Metal Tube Variable-Area Flowmeter
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Metal Tube Variable-Area Flowmeter

The MG9800 Variable-Area Flowmeter is a compact industrial instrument offering a broad measurement range for liquids, gases, and vapors, with particular strength in low-flow applications. Equipped with an intelligent module, it provides local display and remote transmission via 4–20 mA analog and HART digital outputs. Trusted across petroleum, chemical, power, food, pharmaceutical, and water treatment sectors, it delivers reliable performance at a competitive cost.
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  • MG9800 Series

Product Features

●Modular combination design, convenient maintenance, and maintenance free for normal use

●Single axis, non-contact new magnetic coupling structure for more stable signal transmission

●Dual row, large screen LCD display for instantaneous and cumulative flow, with backlight capability

●Intelligent type with power-off protection, data backup and recovery functions

●All metal structure, earthquake resistant, pressure resistant, temperature resistant, and anti-corrosion

●Short stroke, total height of 250mm, designed for more convenient installation


Technical Specifications

General
Product

MG9800-D Bottom In and Top Out Type Variable-Area Flowmeter

MG9800-T Top In and Bottom Out Type Variable-Area Flowmeter 

MG9800-S Side In and Side Out Type Variable-Area Flowmeter 

MG9800-B Bottom In and Side Out Type Variable-Area Flowmeter 

MG9800-R Left In and Right Out Type Variable-Area Flowmeter

MediumGas, liquid
Housing MaterialHigh pressure cast aluminum or stainless steel
Viscosity

DN15: ≤5mPa.s (F15.0~F15.4), ≤30mPa.s (F15.5~F15.9)

DN25: ≤250mPa.s, DN50~DN200: ≤300mPa.s

Cable EntryM20×1.5, PG11, 1/2"NPT
Wetted Part Material316LSST, 304SST, 316SST, Lining PTFE, Alloy steel, Other material consult factory for avaliable
Electric
Power supply10.8VDC~36VDC (Direct-Current Type), 85~265VAC (Alternating-Current Type), 3.6@4AH Nickel hydrogen battery (battery type)
Output Signal

2-wire 4~20mADC

Alarm signal, open collector, MAX100Ma@30VDC Internal impedance 100 Ω

Process Display

Instantaneous flow display value range: 0-50000,

cumulative flow display value range: 0-99999999

Lightning Protection DeviceMeet the requirements of EN61000-4-4 (GB/T17626.4) severity level 4 and EN61000-4-5 (GB/T17626.2) severity level 4
Environment
Process Temperature-112~284℉ (-80~180℃), lining PTFE ≤170℉ (85℃), High temperature type: Max.350 ℃
Ambient Temperature-22~185℉ (-30~85℃)
Storage Temperature-22~185℉ (-30~85℃)
Humidity0~100% Relative Humidity
Pressure
Process Pressure

DN15~DN50  PN4.0MPa  (Customized Type can withstand 42MPa)

DN80~DN200 PN1.6MPa (Customized Type can withstand 10MPa)

Measurement Performance
Accuracy

1.5 (Customized Type 1.0)

Range Down Ratio10:1 (Customized Type 20:1)
Hazardous Locations Certifications
FMFactory Mutual (FM) Approvals
CEXExplosion Proof
CEIIntrinsic Safety
CSACanadian Standards Association Certification
IEIIS International Electromechanical Committee
GRGOST Certification
Mechanical
Total Hight250mm (standard type) with exceptions for other installation methods
Ingress Protection


IP65/IP68
SealingFactory Sealing


Product Application

The following are the application scenarios of MG9800 variable-area flowmeter:

●  Chemical and Petroleum Industry

●  Petroleum and Natural Gas Industry

●  Pulp and Paper Industry

●  Pharmaceutical Industry

●  Food and Beverage Industry

●  Water Treatment and Sewage Treatment

●  Electric Power Industry

●  Machinery and Metallurgy Industry


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+86-183-8100-2380
chunhua.zhang@mega-tek.cn
hemin@mega-tek.cn
No.618, Kelin West Road, Wenjiang District,
Chengdu, Sichuan Province, China

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