| Shipping | Tax | Terms Shopping Cart 0 Items Request for Quote 0 Items All Categories > Flow Thermal > VA 550 Insertion Type Flowmeters > Item # 0695 0550 Download PDF Download PDF Printable Page Email This Page Save To Favorites Please wait… Item # 0695 0550, VA 550 Insertion Type Flowmeter Web Price QUOTE Flow sensor for installation in existing compressed air or gas line of 3/4" to 40"Housing rotatable, display 180º rotatable (on the head). Settings can be modified via display, flow meter can be reset larger image larger image Financing · Specifications · Advantages of Optical Keys · Special Measurement Technology Features · Special Mechanical Features · Connection to Different Bus Systems Options · Additional Information Financing Approve Payments Finance with Approve Payments Specifications Measuring Range Up to 164 ft/s, Low-Speed Version Up to 304 ft/s, Standard Version Up to 607 ft/s, Maximum Version Up to 735 ft/s, High-Speed Version Note for Measuring Range Measuring range SCFM for different pipe diameters and gasesAll measured values related to DIN 1343 standard conditions 0º and 1013 mbar ex works. Accuracy ± 0.3% of Full Scale (F.S.) ± 1.5% of Measured Value (M.V.) Accuracy on Request ± 1.0% of Measured Value (M.V.) ± 0.3% of Full Scale (F.S.) Accuracy Indications Relative to Ambient Temperature 71.6 ºF +2 ºF, System Pressure 87 psi Repeatability 0.25% of Measured Value (M.V.) in Case of Correct Mounting (Mounting Aid, Position, Inlet Section) Measuring Principle Thermal Mass Flow Sensor Response Time t 90 <3 sec Operating/Ambient Temperature Range -4 to 158 ºF Media Temperature Range -4 to 356 ºF Media Temperature Range (ATEX Version) -4 to 248 ºF Adjustment Possibilities via Display, External Hand- Held Device PI 500, PC Service Software, Remote Diagnosis Nm³/h, Nm³/min, Nl/min, l/s, ft/min, cfm, kg/h, kg/min, inner diameter, reference conditions ºC/ºF, mbar/hPa, zero point correction, leak flow volume suppression, scaling analog output 4...20 mA, pulse/alarm, error codes etc. Standard Outputs 1 x 4 to 20 mA Analog Output (Electrically Not Isolated) Pulse Output RS 485 (Modbus-RTU) Optional Outputs 2 x 4 to 20 mA Active HART M-Bus Mod- bus TCP Profibus DP Profinet Burden <500 Ω Additional Average Value Calculation For all parameters freely adjustable from 1 minute up to 1 day, e. g. 1/2 hours average value, average day value Protection Class Ingress Protection (IP 64) for ATEX II 2D Ex tb IIIC T90ºC Db Ingress Protection (IP 67) Housing Material Die-Cast Aluminum Sensor Tube Material Stainless Steel 1.4404 Screw-In Thread G 1/2 in. (International Organization for Standardization (ISO 228)) National Pipe Thread (NPT) 1/2 in. PT 1/2 in. R 1/2 in. Operating Pressure 232 psi Special Version Operating Pressure1 580 psi Direct Current (DC) Supply Voltage 18 to 36 V Power Supply 5 W Approval ATEX II 2G Ex db IIC T4 Gb ATEX II 2D Ex tb IIIC T90 ºC Db DVGW 1 With DVGW approval max. 232 psi Advantages of Optical Keys The sensor can also be configured in the ATEX area, without the housing needing to be opened. Special Measurement Technology Features 4 values on the display: Flow, total consumption, velocity, temperature. Units freely adjustableAll measured values, settings such as gas type, inner diameter, serial number and so on can be accessed via Modbus-RTUComprehensive diagnostic functions readable on the display or remote access via Modbus such as calibration cycle, error codes, serial numberNotification in case of exceeding the calibration cycleStandard version accuracy 1.5% of m.v. ± 0.3% of f.s.Precision version accuracy 1.0% of m.v. ± 0.3% of f.sMeasuring span of 1 : 1000 (0.33 ft/s up to 735 ft/s)Configuration and diagnosis via display, hand-held device PI 500, PC service software on-siteGas type (air, nitrogen, oxygen, argon and so on) freely adjustable via PC service software or external device DS 400, DS 500, PI 500Reference conditions ºF and mbar/hPa freely adjustableIn-Situ adjustment, leak flow volume suppressionPressure loss negligible Special Mechanical Features Robust impact-proof aluminum die cast housing for the outdoor area IP 67All wetted parts made from stainless steel 1.4571Suitable as an insertion version for 3/4" to 40"On request with DVGW approval for natural gas (up to 232 psi)Pressure range up to 725 psi, special version up to 1450 psiMedia temperature range up to 356 ºF (ATEX version up to 248 ºF)No moveable parts, no wearSensor tip very robust, easy to cleanEasy installation and removal under pressure via 1/2" ball valveHousing rotatable, display rotatable by 180ºSafety ring for installation and removal under pressureDepth scale for precise installation Connection to Different Bus Systems Options There are different options available for connection to modern Bus systems:Ethernet interface (Modbus-TCP) / PoEM-BUSModbus-RTUProfibus DP interface (in process)Profinet interface (in process)HART (in process) Additional Information Easy mounting/dismounting of VA 550 under pressure - without disconnection of the line - without emptying the lineIf there is no suitable measuring site with 1/2" ball valve, there are two simple possibilities to set up a measuring site:A Weld on a 1/2" screw neck and screw on a 1/2" ball valveB Mount spot drilling collar including ball valveBy means of the drilling jig, it is possible to drill under pressure through the 1/2" ball valve into the existing pipe. The drilling chips are collected in a filter.Then the probe can be mounted. DOWNLOADS Datasheet for VA 550 Insertion Type Flowmeters (PDF, 946KB) Maintain Your Air Compressor Learn more about maintaining your air compressor by downloading our eBook on air compressor maintenance. Download eBook