YK-84RF

Thermal Gas Mass Flowmeter

The thermal gas mass flowmeter is an instrument based on the principle of heat conduction for flow measurement. It adopts the constant temperature difference method to accurately measure gas mass flow. It features a compact size, high level of digitalization, easy installation, and high measurement accuracy. The sensor consists of two reference-grade platinum resistance temperature sensors. Using a bridge circuit, one sensor measures the gas temperature, while the other maintains a constant temperature difference above the fluid temperature, enabling flow measurement under high temperature and high pressure conditions.

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technology parameter

Structure Form	Integrated, Remote Mount, Insertion Type, In-line Type	Connection Method	Compression Fitting, Screw Type, Flange Type, Insertion Type
Shell Material	Aluminum Alloy, 304	Probe Rod Material	304, 316L, Hastelloy
Sensor Material	304, 316L, Hastelloy, Titanium	Ambient Temperature	-25 ～ 60℃
Process Temperature	-20 ～ 300℃	Applicable Pressure	0 ～ 3.0 MPa (can be agreed upon)
Accuracy	±1.5%	Electrical Interface	M20×1.5 (can be agreed upon)
Output Method	4～20mA, HART Protocol, RS485	Protection Class	IP65, IP66, IP67
Certification	Intrinsic Safety, Flameproof	Power Voltage	220VAC, 24VDC

热式质量流量计原理图.png

Selection

Measurement Task
Nominal Diameter (DN)

A:DN15; B:DN20; C:DN25; D:DN32; E:DN40; F:DN65; G:DN80; H:DN100; I:DN125; J:DN150; K:DN200; L:DN250; M:DN300; N:DN350; O:DN400; P:DN450; Q:DN500; R:DN600; S:DN700; T:DN800; U:DN900; V:DN1000; W:DN1100; X:DN1200; Y:DN1300; Z:DN1400; DI:Others;
Power Supply

A:24VDC; B:220VAC; C:Non-powered;
Operating Temperature

A:≤80℃; B:≤120℃; C:≤200℃; D:≤300℃; E:≤400℃;
Pressure Rating

A:0–1.6MPa; B:0–2.5MPa; C:0–4.0MPa; D:0–6.3MPa; E:0–10MPa;
Output Signal

A:4–20mA; B:Pulse; C:Switch Signal; D:No Output;
Installation Type

A:Clamp-on; B:Flanged; C:Insertion type; D:Welded-connection;
Converter Type

A:Integral; B:Remote;
Protection Rating (IP Rating)

A:IP65; B:IP66; C:IP67; D:IP68;
Explosion-Proof Rating

A:Standard; B:Explosion-proof; C:Intrinsic Safety;
Grounding Ring or Grounding Electrode

A:Yes; B:No;
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