VA500 Thermal Mass Flow Meter

NegotiableUpdate on 05/15

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

The housing of VA500 thermal mass flowmeter adopts IP67 protection level, which is corrosion-resistant and can measure dirty gases with high impurity content. It has passed explosion-proof certification and can measure explosive gases. Basically, any mixed gas can be measured. In modern factories, instruments need to provide communication interfaces for the factory automation system. The VA500 thermal mass flowmeter not only supports traditional 4-20mA output and pulse output, but also supports various fieldbus interfaces. The instrument is designed modularly, so it is also very easy to use other field buses, and the VA500 can also support Bluetooth communication.

Product Details

VA 500 flow and consumption meter

VA 500 is a new preferred plug in flow meter for measuring compressed air and industrial gas flow in 1/2 "to 12" pipelines. Flow sensors are based on the principle of calorimetric measurement and do not require additional pressure and temperature measurements. The newly developed evaluation electronic device records all measurement values digitally. In the case of a large measurement range of 1:1000, this also leads to better accuracy.

The flow sensor has three measurement ranges - standard (92.7 m/s), * large. (185 meters/second) and high-speed (224 meters/second) versions. You can order devices with or without integrated displays. The version with a display screen shows real-time volumetric flow rate, speed, temperature, and total consumption. The diameter and consumption counter can be reset through the keyboard.

Product features

RS 485 接口（Modbus-RTU）
Integrated display of m3/h and m3
Available from 1/2 "to 12" (DN 300)
Easy installation under pressure
4 . .. 20 mA analog output, for m3/h orCubic meter per minute
Pulse output of m3
The inner diameter can be adjusted through the keyboard
Consumer counters can be reset
Adjustable through the buttons on the display screen: gas type, reference conditions, ° C and mbar, 4... 20 mA ratio, pulse weight

Touch button

Reset counter reading
Select measurement unit
Select OG gas type
Zero point adjustment, leakage flow suppression

4 displayed values

flow
eliminateFei
flow velocity
temperature

Value added indication

Real time, * small, * large, and average values

Easy setup through sensor keyboard

Flow unit selection
The diameter of the inner tube can be adjusted through the keyboard

Technical data

parameter	In the case of compressed air, m3/h, l/min (1000mbar, 20 ℃).In the case of gas, Nm3/h, Nl/min (1013mbar, 0 ℃)
The unit can be adjusted through the buttons on the display screen	m3 / h，m3 / min，l / min，l / s，ft / min，cfm，m / s，kg / h，kg / min
Adjustable through keyboard	Counter can be reset
MEAS。principle	Calorimetry measurement
sensor	Thermal mass flow sensor
MEAS。medium	Compressed air, gas
The gas type can be adjusted through the buttons on the display screen	Compressed air, nitrogen, argon, nitrous oxide, carbon dioxide, oxygen, natural gas
MEAS。scope	See the table below
Accuracy:	± 1.5% of measured value, ± 0.3% of full scale
L1 * level (mv: measured value) (fs: full scale)	± 1.0% of measured value ± 0.3% of full scale (as required)
Operating Temperature	-30 . .. 110 ° C probe tube -30 . .. 80 ° C shell
Operational pressure	Up to 50 bar
digital output	RS 458 接口， Modbus RTU
analog output	4 . .. 20 mA, m3/h are respectivelyLiters per minute; Request: SCS ling for cfm，m3 / min，l / min，l / s，ft / min，m / s
pulse output	1 pulse per m3.Each electroplating separation
power supply	24 VDC
burden	<500 ohms
housing	Polyca bonate
Probe tube	Stainless steel 1.4301, installation length 220 mm, Ø 10mm
install thread	G 1/2“
Ø Housing	65 millimeters

Flow measurement range for compressed air VA 500 （ISO 1217：1000 mbar，20°C）
inner diameter of pipe			standard （92.7 m / s）	*Big. (185.0 meters per second)	high-speed （224.0 m / s）
inch	millimeter	DN	m³/ h	Cubic meter per hour	Cubic meter per hour
1/2'	16.1	DN 15	2.5 . 760 liters per minute	3.5 . 1516 liters per minute	6.0 . 1836 liters per minute
3/4“	21.7	DN 20	0.3 . .. 89	0.4 . .. 178	0.7 . .. . .. 215
1“	27.3	DN 25	0.5 . .. 148	0.6 . .. . .. 295	1.1 . .. . .. 357
1 1/4“	36	DN 32	0.9 . .. . .. 280	1.2 . .. . .. 531	2.5 . .. . .. 644
1 1/2“	41.9	DN 40	1.2 . .. . .. 366	1.5 . .. . .. 732	3.0 . .. . .. 886
2“	53.1	DN 50	2 . .. 600	2.5 . .. 1198	4.6 . .. 1450
2 1/2“	71.1	DN 65	3.5 . .. 1096	5 . .. 2187	7 . .. 2648
3“	84.9	DN 80	5 . .. 1570	7 . .. 3133	12 . .. 3794
4“	110	DN 100	9 . .. 2645	12 . .. 5279	16 . .. 6391
5“	133.7	DN 125	13 . .. 3912	18 . .. 7808	24 . .. 9453
6“	159.3	DN 150	18 . .. 5560	25 . .. 11097	43 . .. 13436
8“	200	DN 200	26 . .. 8786	33 . .. 17533	50 . .. 21230
10“	250	DN 250	40 . .. 13744	52 . .. 27429	80 . .. 33211
12“	300	DN 300	60 . .. 19815	80 . .. 39544	100 . .. 47881