VPFlowScope M Thermal Mass Flow Meter

The VPFlowScope^® M is a four-in-one flow meter for compressed air and technical gases. It measures bi-directional flow, pressure, temperature and totalized flow, simultaneously. Unlike traditional flow meters, the VPFlowScope M does not require traditional recalibration, where you have to ship the unit back. Instead, the VPFlowScope M consists of a transmitter and the patented VPSensorCartridge^® which reduces recalibration to a simple exchange.

 

Features and benefits

• Four sensors in one instrument
• For compressed air and technical gases
• Patented VPSensorCartridge^®: no more recalibration required
• Ethernet interface: Industry 4.0/IOT ready
• Ultra-compact size and low weight
• Ethernet (Modbus/ TCP)
• RS485 (Modbus RTU)
• 4 … 20 mA linearized, pulse mode or alarm output
• USB interface for configuration and downloading of data log files
• Optional TFT color display
• Optional data logger with up to 365 days @ 1 second interval + cyclic recording
• Optional Wi-Fi interface (Web server for configuration, Modbus / TCP)
• Optional: Bi-directional

Applications

• Compressed air audits
• Nitrogen and technical gas flow measurements
• Cost allocation
• Leak detection
• Pipe network optimization
• Permanent monitoring

Specification

Measuring principle	Thermabridge™ Thermal Mass Flow sensor
Flow range	0 (0.5) … 150 mn/sec | 0 … 500 sfps
Bi-directional flow	Model VPM.R150.351.PN10 only
Accuracy	2% of reading under calibration conditions; Please refer to the user manual for details. Recommended pipe diameter: 25 mm (1″) and up.
Reference conditions	0 °C, 1013.25 mbar | 32 °F, 14.65 psi
Gases	Gases Compressed air, Nitrogen and inert, non condensing gases
Gas temperature range	0 … +60 °C | 0 … +140 °F
Pressure sensor range	0 … 10 bar | 0 … 145 psi gage
Accuracy	+/- 1% FSS (total error band) Temperature compensated
Temperature sensor range	0 … +60 °C | 32 … +140 °F
Accuracy	> 10 m/sec: +/- 1 °C | 1.8 °F < 10 m/sec: + 5 °C | 9 °F
Probe lengths	340 mm | 13.4″
Weight	200 grams | 7.05 ounces
Process connection	Compression fitting, 1/2″ NPT, Tapered
Pressure rating	PN10
Protection grade	IP65 | NEMA 4 when mated to transmitter
Ambient temperature range	0 … +60 °C | 32 … 140 °F. Avoid direct sunlight or radiant heat
Wetted materials	Anodized Aluminum, Stainless steel 316, Glass, Epoxy
Corrosion resistance	Highly corrosive or acid environments should be avoided
Connection type	VPSensorCartridge® proprietary
Power consumption	1 Watt (no flow) 3.5 Watt (full flow) +/- 10% Varies per VPSensorCartridge® type and transmitter type
CE	EN 60950-1, EN 61326-1, EN 61000-3-2, EN 61000-3-3, EN 61326-1
UL	UL 508

Download Datasheet: VPFlowScope M