Turbine flow meter YFT

Turbine flow meter YFT
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Turbine flow meter YFT

Product catalog summary
General Information
This document provides comprehensive instructions for the installation, use, and maintenance of YUN YI series turbine flow meters, emphasizing safety precautions, especially with hazardous or flammable liquids. It advises against removing the cover plate in explosive environments and stresses using compatible fluids with the turbine's materials.
Specifications
The turbine flow meters are designed for high accuracy and repeatability, featuring a protection level of IP65 and explosion-proof options. They operate within a fluid temperature range of -20°C to +110°C and require a +24V DC power supply. A table details the measurable flow rate ranges and pressure ratings for various nominal diameters.
Installation Guidelines
Proper installation is crucial for accurate measurements. The document specifies the need for straight pipe lengths upstream and downstream of the meter, guidelines for mounting positions and orientations, and instructions for thread and flange connections.
Model Selection and Configuration
The document outlines the model selection process, including options for connection types, power supply configurations, and accuracy ranges. It explains the model number definition and available customization options.
Warnings and Cautions
Highlighted warnings include electrical hazards and the importance of not over-tightening flange bolts. The document warns against cavitation, providing a formula to calculate necessary back pressure to prevent it.
Electrical Interface and Terminal Configuration
Detailed information on the electrical interface, terminal symbols, and configurations for different output types, including pulse and 4-20mA outputs, is provided. It describes the use of DIP switches and terminal functions.
Operation and Maintenance
Regular calibration is recommended for optimal performance. The document advises careful handling of the rotor to avoid damage and provides instructions for cleaning minor spills during turbine removal.
Flow Unit Specifications
The document outlines various flow units and their corresponding total flow units, such as cubic meters per hour (M3/h), liters per hour (L/h), and gallons per minute (US Gal/min).
Input Parameters
Specified input parameters for user configuration include maximum and minimum flow rates, maximum frequency output, and density. Details on pulse output options and communication settings, including baud rate and verification methods, are provided.
Flow Curve Linearization
The document describes flow curve linearization through multiple points (P1 to P9), involving corrected frequency and coefficient error values.
Troubleshooting
Common issues like inaccurate measurements and LCD display abnormalities are addressed with probable causes and solutions, such as increasing flow rate, cleaning turbines, and checking power supply connections.
Warranty Information
A limited one-year warranty is provided against defects in materials and workmanship. The warranty process involves obtaining a Returned Material Authorization (RMA) number and returning the product for inspection. Conditions under which the warranty does not apply are specified.
Non-Warranty Repairs
Instructions for non-warranty repairs or calibrations require a purchase order number, product model and serial number, and specific repair instructions.
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Catalog excerpts

Turbine flow meter YFT-1

XI'AN SHELOK INSTRUMENT COMPANY LIMITED 1.Pressure Transmi�er 4.Dead Weight Tester 7.Temperature Transmi�er 2.Pressure Gauge 5. Level Transmi�er 8.Density Meter

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Turbine flow meter YFT-2

Liquid Turbine Flow Meter User Manual ' Warning When the flow meter is installed at explosion hazard field, DON'T remove the COVERPLATE when the meter is powered. Please make parameter settng at safe filed prior to installation. > Special Notices Pictures & Descriptions are for your information only, please refer to the actual product. Parameters are subjected to changes without notice. GENERAL INFORMATION This manual will assist you in installing, using and maintaining your turbine flow meter. It is your responsibility to make that all operators have access to adequate instructions about safe...

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Turbine flow meter YFT-3

Shelok SPECIFICATIONSPerformance Measurable Flow Rate Range and Pres Level: (See table 1) Table 1. Measurable Flow Rage Range and Pressure Rating Standard - 304 Stainless Steel Optional - 316 Stainless Steel Tungsten Carbide Standard - 2Cr13 Stainless Steel (Optional Alloy CD4Mcu) 316 Stainless Steel Power Supply: Sensor: Transmitter: Field Display Type B: Field Display Type C: Accuracy: Standard: ±1% of reading; Housing: Bearings and Shaft: Rotor: Retaining Rings: Output Signal: (Where applicable) Sensor: Pulse signal (Low Level: <0.8V; High Level: >8V) Transmitter: 4 to 20 mA DC current signal...

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Turbine flow meter YFT-4

CAUTIONS FOR INSTALLATION Mounting Positions Turbine flow meters should be installed at the place in compliance with the requirements below: •Easy maintenance •No vibration •No electromagnetic interface •Away from heat source Mounting Orientation All turbine flow meters are designed to measure flow in only one direction. The direction is indicated by the arrow on the body. Required Lengths of Straight Runs Flow altering device such as elbows, valves and reducers can affect accuracy. See diagram 1 for typical flow meter system installation. Diagram 1. Typical Flow Meter System Installation The...

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Turbine flow meter YFT-5

See diagram 2 for straight pipe length requirement when there is altering device. Diagram 2. Number of Pipe Diameter (D=Diameter) Warning:Precaution for direct sunshine and rain when the meter is installed outside. Cavitation can be caused by entrained air, and it can seriously damage the rotor on a turbine flow meter. An amount higher than about 100 mg/l of entrained air or gas can produce error. In addition, cavitations can be caused by too little back pres on the flow meter. For turbine flow meters, you should provide a back pres (downstream pres) of at least 1.25 times the vapor pres, plus...

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Turbine flow meter YFT-6

Notice: The straight section is included for DN4-DN10, but not DN15-DN Flange connection Wafer Connection

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Turbine flow meter YFT-7

Sanitary Connection

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Turbine flow meter YFT-8

Main Power Description of the symbols: + Default Function O Optional • 2. Pulse with Explosion Proof: Notice: l.The pulse means the signal which is in direct proportion to the impeller speed. 2.The scaled Pulse means the signal when the flow rate reach ONE unit volume( m3, L, 0.01L...) 3.The batter model is ER34615 4.The battery model is ER26500 Notice: (1) High level amplitude >22V (2)Low level amplitude<0.8V (3)Load capacity>1100Q (4)Pulse frequency<3000Hz •3. 4-20mA Output with Explosion Proof Type Notice: Load resistor is <

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Turbine flow meter YFT-9

Pulse / Scaled Pulse output

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Turbine flow meter YFT-10

Pulse / Scaled Pulse output

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Turbine flow meter YFT-11

Parameter set There are four keys: "Enter", "^", "t", "Esc". Description of Password Grade

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Turbine flow meter YFT-12

Parameter set METER CONSTRUCTION Symptom Measurement is not accurate Probable Cause Solution 1. Turbine operated below minimum rate. Increase flow rate. Refer to Section 3.0 Operation Conditions Materials of Housing Stainless Steel 304 • Others available on request) Magnetic Pickup End Fittings: For hazardous areas, pickup colls supplied with explosion proof boss. Carbide Steel (Others available on request) 2. Turbine partially clogged with dried liquid Remove turbine. Clean carefully. Make rotor spins freely. 3. Installed too close to fiffings. Install correctly. Refer to Section 5.0 Cautions...

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Turbine flow meter YFT-13

METER CONSTRUCTION Hereby provides a limited warranty against defects in materials and workmanship. This product includes a one-year warranty. The warranty period shall begin on the date of the original new equipment purchase. Warrantor's obligation hereunder shall be limited to repairing defective workmanship or replacing or repairing any defective parts. In the event Purchaser believes the product is defective, the product must be returned to, transportation prepaid by Purchaser, within the appropriate warranty period relative to the product. If 's inspection determines the workmanship or materials...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.