VS310 series high-temperature high-precision anemometer-Detailed Introduction

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VS310 series high-temperature high-precision fixed split insertion anemometerIt is a new type of instrument used for measuring and controlling gas wind speed and volume;The maximum temperature resistance is 250 ℃, with an instantaneous temperature of 300 ℃;High precision, directly measuring mass air volume and obtaining standard wind speed and standard volumetric air volume without temperature and pressure compensation;

Suitable for various non condensing, non flammable and explosive gases, and can be used for gas monitoring in industrial sectors such as petroleum, chemical, steel metallurgy, power, light industry, medicine, and environmental protection. It is particularly suitable for air, compressed air after drying, flue gas, various exhaust gases, dust containing gases, etc; Can replace impellers, pitot tubes, orifice plates, Venturi tubes, Annubar, vortex street and other wind speed and flow meters;

Its characteristics are high reliability, good repeatability, low pressure loss, no movable parts, wide range ratio, fast response speed, and significant advantages in measuring large pipe diameters, low flow rates, large variations in air volume range, and extremely small air volumes;

VS310 wind speed and volume meterThe structural forms are flexible and diverse, with three types: integrated insertion type, split insertion type, and pipeline type, which are very suitable for different users to choose from. Especially the insertion type structure makes the measurement of air volume (velocity) with large pipe diameter and low pressure simple and easy, such as smoke ducts and chimneys.

Product Features

Based on the principle of thermal diffusion measurement, standard wind speed, standard volumetric air volume or mass air volume can be obtained without temperature and pressure compensation, making measurement convenient and accurate.

Wide range ratio, high precision, capable of measuring wind speeds as high as 100Nm/s and as low as 0.1Nm/s; Low flow rate measurement is sensitive and can be used for gas leak detection, with negligible pressure loss;

Adopting automatic thermal balance technology, the medium temperature is self compensated, and the maximum temperature of the medium is+250 ℃, which can instantly reach+300 ℃.

The probe has been specially treated to withstand high temperatures, dust (anti adhesion, insensitive to small particles such as dust), and corrosion (customized according to specific working conditions)

Made of metal material, the sensor has no moving parts or pressure sensing components, good seismic performance, long service life, and industrial quality.

LCD dot matrix Chinese character display, intuitive and convenient, with simple and clear operation;

Intelligent microprocessor and high-precision, high-resolution analog-to-digital, digital to analog conversion chip;

Input 30 points of dynamic correction for wind speed signals, with built-in 5-point linear correction for air volume; Online dynamic correction of current/voltage output;

• proprietary algorithms that can achieve high linearity, high repeatability, and high accuracy; Realize measurement of large pipe diameter and small air volume, with the ability to measure as low as zero for the smallest air volume.

Adopting RS485 communication, supporting MODBUS-RTU protocol or HART communication, it can achieve factory automation and integration;

Two way relay alarm output, relay normally open contact capacity: DC 24V, 3A;

Easy installation and maintenance, online uninterrupted loading and unloading, convenient maintenance;

The instrument has a 24VDC power supply wiring method.

Technical Specifications:

performance	Technical Specifications
structural form	plug-in			pipeline-style
Pipe diameter range	DN80～4000mm (If applicable to smaller diameters, special customization is available)			DN15～2000mm
Flow velocity range	0.1～100 Nm/s
accuracy	± 1.5% reading ± 0.5% full range
Operating Temperature	Sensor: -20~+250 ℃ (instantaneous 300 ℃) Converter: -20~+45 ℃
work pressure	Medium pressure ≤ 1.6MPa			Medium pressure ≤ 4.0MPa
Sensor material	stainless steel			Stainless steel, carbon steel

measuring medium	Various non condensing, non flammable and non explosive gases
power supply	DC 24V
response speed	1s
output signal	4-20mA (photoelectric isolation, maximum load of 500 Ω, adjustable wind speed or volume output on site), pulse, RS-485 (photoelectric isolation), HART protocol)
call the police	2-channel relay normally open contact: 3A/24VDC
Supply type	Split structure, integrated structure
Pipe material	Carbon steel, stainless steel, plastic, etc
On site display	Four line Chinese character LCD display
Display content	Standard wind speed, instantaneous volumetric air volume under standard conditions, instantaneous mass air volume, cumulative air volume, standard time, cumulative operating time, etc
Protection level	IP65

Selection Chart

content	Code Description
	VS310	Thermal anemometer
sensor type		D	Standard plug-in type
		E	Flanged pipe section type
		F	Threaded pipe segment type
		G	Flange insertion type
Caliber (direct input, special shaped pipes need to be labeled)			Circular pipe inner diameter: 15mm-6000mm
			Square tube provides side length: 25 * 25-2000 * 2000; Unit: mm
Pressure (Mpa)				S	1.6
				M	2.5 (flange pipe section type, flange insertion type)
				T	4 (flanged pipe section type)
Temperature (℃)					II	-20~150 ℃ (can instantly reach 200 ℃)
					III	-20~200 ℃ (can instantly reach 250 ℃)
					IV	-20~250 ℃ (can instantly reach 300 ℃)
Probe (Multiple Choice)						A	Standard type (probe rod 304+probe 316 stainless steel)
Output Signal (Multiple Choice)							1	4 to 20MA;
							2	RS485 接口 (MODBUS-RTU) ；
							3	Frequency output;
							4	2-point relay normally open contact
							5	HART
Connection and display mode								F	Split type display
Cable length (for split display only)									5	5m
									10	10m
									15	15m
Special non-standard customization function code										N	Add N to the selection code and provide detailed instructions in the contract remarks.

Example of selection:

Model: VS310-D-500-S-III-A-1/2-F-10

Description: VS310 host, standard plug-in sensor, pipeline inner diameter of 500MM, maximum medium pressure of 1.6Mpa, medium temperature of -20 to 200 degrees, output signal of 4 to 20MA, with RS485 communication interface, split display, cable length of 10 meters between sensor and host.