VA 520 - Thermal mass flow meter for flow measurement
for Compressed air / gases. New Digital electronics - improved Accuracy.
Details
- All wetted parts are made of stainless steel, especially for applications with high demands on purity and surface quality
- Rough industrial applications can be realised thanks to robust aluminium housing
- Recommended for flammable gases such as natural gas, hydrogen, biogas, etc. thanks to ATEX + IECEx or DVGW approval
- Measurement of the mass flow, direct output of the standard volume flow
- Highly accurate for both small and large flow rates
- Pressure and temperature-compensated thanks to the thermal mass flow principle
- Quick and easy installation via a standard ½'' ball valve
- No moving parts, therefore low maintenance
- Disappearingly low pressure loss, as the blockage of the diameter is negligible
- 04...20 mA, pulse and a Modbus RTU (RS 485) interface as standard, optional interfaces such as Modbus TCP (Ethernet), PoE, M-Bus
- Pressure range up to 50 bar, special version up to 100 bar
- Media temperature range up to 180 °C (ATEX + IECEx version up to 120 °C)
- Protection class IP 67 (IP 65 for ATEX + IECEx II 2D Ex tb IIIC T90°C Db)
- Integrated display to show the measured values
- Suitable as insertion version for 3/4" to DN 1000
- Simple installation under pressure
- Settings can be adjusted using the buttons on the display
- Main counter reading can be reset via the display
- For speeds up to 224 Nm/s
- Highly accurate with an accuracy of ± 1.5% or ± 1% of the measured value - as well as ± 0.3 % of the final value
V.05
Product configurator
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Related products
VA 500 - Flow meter for compressed air and gases
RS 485 Modbus interface, 4...20 mA Analogue output, Pulse output integrated as standard.
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ATEX + IECEx approval for Ex zones and DVGW approval for use in natural gas.
PI 500 for e.g. portable flow measurement
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Accessories
Hot tapping saddles
If there is no measuring point with 1/2 ball valve on existing pipes, a measuring point can be set up quickly and inexpensively using hot tapping saddles.
Drilling jig for set up a measuring site
This Drilling jig can be used to set up a measuring site after welding on a 1/2" threaded socket and then installing a 1/2" Ball valve.
High-pressure protection
This accessory is designed to enable the VA 5xx/VD 5xx series CS sensors to be fitted under pressure and securely fastened in place.
Thickness meter CS 0495
enables quick, easy and accurate measuring of the wall thickness of pipes.