I. Brief Introduction:

This series introducesSide-entry, side-exit metal tube float flow meterThe fluid inlet and outlet directions are side entry and side exit. The standard sensor material is 304 stainless steel (optional 316 or 316L). The indicator in the photo is powered by 24VDC, with an output of 4-20mA, explosion-proof type with an explosion-proof rating. HART protocol options are available. The indicator can be selected in various other types to meet site requirements.

II. Detailed Description:

Overview:

    Metal tube float flow meterThe metal tube rotameter is a commonly used variable area flow measurement instrument in industrial automation process control. It features a compact size, wide detection range, and ease of use. It can be used to measure the flow of liquids, gases, and steam, particularly suitable for low flow rate and low volume measurements. Over the years, the metal tube float rotameter has been widely applied in industries such as petrochemicals, steel, electricity, metallurgy, light industry, food, pharmaceuticals, and water treatment, thanks to its excellent performance, reliability, and favorable performance-to-cost ratio.

Flowmeter Type:

The TF series metal tube float flowmeter consists of a measuring tube (sensor) and an indicator (electronic converter). By selecting different types of measuring tubes and indicators, various complete units can be assembled to meet on-site requirements.

The TF series metal tube float flowmeters are divided into 5 types based on the direction of the fluid's inlet and outlet: vertical type, horizontal type (further divided into horizontal T-type and horizontal spring type), bottom inlet-side outlet type, side inlet-side outlet type, and side inlet-top outlet type. Each type also includes standard models, high-temperature models, jacketed models, and so on.

Horizontal Mount TypeFlow MeterFor diameters less than or equal to DN50, choose T-type structures; for diameters greater than DN50, choose spring-loaded structures.

Flowmeter Connection Specifications: The TF series metal tube float flowmeter standard model adopts the GB/T9119-2000 flange standard, and flange standards can be customized according to customer requirements; both threaded and clamp connection methods are also available.

Indicator Selection:

Users can choose from on-site display, battery-powered, wired remote, intrinsically safe, explosion-proof, or HART-protocol-compatible models based on actual site requirements. Detailed functional descriptions of various indicators are provided in the table below.

Indicator Type

Instrumentation Function Description

M1 Model

Local pointer indicates flow rate; no power required, no 4~20mA remote transmission; optional flow alarm unit; scale dial can be set to instantaneous flow rate or percentage scale value.

M3 model

Local digital display, battery-powered, no 4~20mA remote transmission, non-explosion-proof. LCD shows instantaneous and accumulated flow rates; on-site buttons are used to view and modify related parameters. Battery can last for 6 months; replace the battery when the T character appears on the display (Battery model: ER26500, 3.6V, 7.5AH, -55℃~85℃).

M4 Model

Electrical remote transmission, intrinsic safety design, explosion-proof mark ExdⅡCT6, optional HART protocol function. Powered by DC24V, on-site pointer indicates instantaneous flow rate and digital display for both instantaneous and accumulated flow rates. Two-wire system with 4~20mA output. The panel features 4 buttons for viewing and modifying internal parameters. Detailed usage instructions on page 18.

M5 model

Electrical remote transmission, explosion-proof design with ExdⅡCT6 marking, optional HART protocol functionality. Powered by DC24V,现场indicating instantaneous flow rate and digital display of instantaneous and accumulated flow rates. Two-wire 4~20mA output, equipped with a panel featuring 4 buttons for viewing and modifying internal parameters.

Feature Highlights:

◆　Ideal for low-flow and small-diameter medium flow measurement ◆　Reliable operation, minimal maintenance, long lifespan

◆ Not stringent requirements for straight pipe sections ◆ Wide range ratio of 10:1

◆ Dual-line LCD display, real-time/accumulative flow rate shown on-site ◆ The indicator features a keypad for easy operation and settings

◆ Full metal structure, suitable for high temperatures, high pressures, and strong corrosive media ◆ Non-contact magnetic coupling transmission

◆ Suitable for flammable, explosive and hazardous environments ◆ Available in DC power or battery-powered options

◆ Data recovery, data backup, and power failure protection features ◆ Multi-parameter calibration function

Technical Specifications:

◆ Flowmeter sizes: DN15, DN25, DN50, DN80, DN100, DN150 (other sizes upon manufacturer's consultation)

Flow Range: Liquid: 1.0～150,000 liters/hour; Gas: 0.05～3,000 cubic meters/hour (see page 11 for detailed flow chart)

Range ratio: 10:1, 20:1 (special)

Accuracy 1.5 grade, 1.0 grade (special)

◆ Pressure Grades: DN15, DN25, DN50: 4.0MPa (max. 20MPa)

DN80, DN100, DN150: 1.6 MPa (Max: DN80: 10 MPa; DN100: 6.4 MPa; DN150: 4.0 MPa)

Medium Temperature Standard: -30℃ to +120℃, High Temperature: 120℃ to 350℃

24VDC (12-36VDC) power supply

Output Signal: 4-20mA DC (two-wire system), HART protocol optional

Output Load 500Ω (when powered by 24V)

◆ Environmental Temperature: Field Type: -40℃ to 120℃; Remote Type: -30℃ to 60℃

Storage Conditions: Temperature: -40℃ to 85℃; Humidity: ≤85%

◆ Connection Type: Flange connection, Flange Standard: GB/T9119-2000, Users may (other connection types can be negotiated with the manufacturer)

Cable Interface M20×1.5

◆ Enclosure Protection IP65

◆ Explosion-proof Mark: Intrinsically Safe Type: ExiaIICT6, Flameproof Type: ExdIICT6

◆ Pressure Loss, see flow chart

◆ Medium Viscosity: DN15: η<5 mPa.s, DN25: η<250 mPa.s, DN50~DN150: η<300 mPa.s

◆ R1 Material for receiving liquid: 304, 1Cr18Ni9Ti; Ro: 316, 0Cr18Ni12Mo2Ti.

RL: 316L, 00Cr17Ni14Mo2Ti; Ti: Titanium alloy; Rp: Polytetrafluoroethylene lining.

Magnetic Filter:

If ferromagnetic particles are present in the medium, a magnetic filter should be installed before the flow meter's inlet.