A 4-in-1 insertion-style thermal mass flow meter measuring compressed air flow, pressure, temperature, and total consumption simultaneously. Compatible with pipe sizes from 2" to 20", making it the ideal tool for both supply-side and demand-side monitoring in oilfield instrument air and industrial gas systems.
The VPFlowScope® is the measurement tool for dry compressed air and other technical gases like nitrogen, carbon dioxide and argon. The VPFlowScope Probe measures thermal mass flow, pressure, temperature and total flow simultaneously.
The VPFlowScope Probe can be used in various pipe diameters, which makes it the perfect solution for measuring of both the supply side and demand side of compressed air systems. The flow meter shows you where, when and how much air is used in order to allocate cost and subsequently to save money and energy.
The bright blue LCD display provides real-time information and with the built-in data logger, you can record for certain periods of time. Combine this with our VPStudio software on your PC and you can use this information to process data, print reports and analyze where and how exactly you can save.
Power of combined measurement
Get the complete picture by measuring flow, pressure and temperature simultaneously. Examples are: pressure drop caused by excessive flow, flow & temperature measurement combination downstream a refrigerant dryer, investigation if a machine can use less air at a lower pressure.
Bi-directional flow measurement
Bi-directional flow occurs frequently in compressed air systems, examples are in ring networks, at receivers in case of multiple compressed rooms, overseen branches or a leaking non-return valve. Discover the actual consumption and avoid mis-readings with VPFlowScope bi-directional flow measurement option.
Proprietary safety cable
We value your safety while you install your flow meter under pressurized conditions. The safety cable prevents unintended launching of the flow meter. As an extra benefit, the flow meter remains better in its position over time.
Display Module
The VPFlowScope Probe is available in several versions: without display (with connector cap) (D2), with display module (D10), and with display module and integrated data logger (D11).
The display provides real-time information that can be recorded with the optional data logger. The display is reversible and shows all information on three lines, which are fully configurable. You can choose from SI and Imperial display units. The data logger offers 2 million data points, which makes recording as easy as taking pictures. This is enough storage to measure flow, pressure and temperature once per second for more than a week.
Highlights
- 4-in-1 sensor: flow, pressure, temperature and total flow
- Bi-directional flow measurement (optional)
- Patented Thermabridge™ technology for dry, clean gas measurements
- Standard RS485, 4..20mA and pulse output
- 3-line LCD display (optional) with real-time information and configuration keys.
- Built-in data logger with 2 million points (optional)
- 1 Year Warranty
Technical Specifications
Parameter |
Specification |
FLOW SENSOR |
|
Measuring Principle |
Thermabridge™ Thermal Mass Flow Sensor |
Flow Range |
0.5 – 150 mn/sec / 1.7 – 490 sfps |
Bi-directional |
Optional |
Accuracy |
2% of reading under calibration conditions |
Min. Recommended Pipe |
40mm (1.5") and up |
Reference Conditions |
0°C, 1013.25 mbar / 32°F, 14.65 psi (DIN 1343) |
Gases |
Compressed air, nitrogen and inert non-condensing gases, 95% non-condensing |
Gas Temperature Range |
0 – 60°C / 0 – 140°F |
PRESSURE SENSOR |
|
Range |
0 – 16 bar / 0 – 250 psi gauge (35 bar / 500 psi on request) |
Accuracy |
±1.5% FSS (0 – 60°C / 32 – 140°F), temperature compensated |
TEMPERATURE SENSOR |
|
Range |
0 – 60°C / 32 – 140°F |
Accuracy |
>10 mn/sec: ±1°C / ±1.8°F — <10 mn/sec: +5°C / +1.8°F |
DATA OUTPUTS |
|
Digital |
RS485, Modbus RTU |
Analog |
4 – 20 mA single analog / pulse output, selectable via VPStudio |
DISPLAY / DATA LOGGER |
|
Technology |
LCD |
Backlight |
Blue, auto power save |
Data Logger (option) |
2 million points |
MECHANICAL & ENVIRONMENTAL |
|
Probe Length |
400mm / 15" standard (300mm or 600mm on request) |
Process Connection |
Compression fitting, 0.5" NPT thread |
Pressure Rating |
PN16 (PN35 on request) |
IP Rating |
IP52 / NEMA 12 (with display module) — IP63 / NEMA 4 (with connector cap) |
Ambient Temperature |
0 – 60°C / 32 – 140°F. Avoid direct sunlight or radiant heat |
Wetted Materials |
Anodized aluminum, stainless steel 316, glass and epoxy |
ELECTRICAL |
|
Connection |
M12, 5-pin connector (female) |
Power Supply |
12 – 24 VDC ±10%, Class 2 (UL) |
Power Consumption |
3.6W (no flow) / 4.8W (full flow) — 150mA / 200mA @ 24VDC |
Certifications |
UL/CUL 14 AZ Industrial Control Equipment, CE EN61325-1(2006) Class A, EN61000-6-1(2007) |
FLOW RANGE TABLE — Schedule 40 Standard Seamless Carbon Steel Pipe
Size (in) |
DN |
ID (in) |
ID (mm) |
Min (SCFM) |
Max (SCFM) |
Min (m³n/hr) |
Max (m³n/hr) |
2 |
50 |
2.1 |
52.5 |
2.3 |
688 |
3.9 |
1,169 |
3 |
80 |
3.1 |
77.9 |
5.1 |
1,516 |
9 |
2,576 |
4 |
100 |
4.0 |
102.3 |
8.7 |
2,610 |
15 |
4,435 |
6 |
150 |
6.1 |
154.1 |
20 |
5,924 |
34 |
10,065 |
8 |
200 |
8.0 |
202.7 |
34 |
10,259 |
58 |
17,429 |
10 |
250 |
10.2 |
259.1 |
56 |
16,756 |
95 |
28,468 |
12 |
300 |
11.9 |
303.2 |
77 |
22,953 |
130 |
38,995 |
16 |
400 |
15.0 |
381.0 |
121 |
36,237 |
205 |
61,565 |
20 |
500 |
18.8 |
477.8 |
190 |
56,996 |
323 |
96,832 |
Flow Range Table — Schedule 10 Standard Seamless Carbon Steel Pipe
ID (in) |
ID (mm) |
Min (SCFM) |
Max (SCFM) |
Min (m³n/hr) |
Max (m³n/hr) |
2.2 |
54.8 |
2.5 |
749 |
4.2 |
1,273 |
3.3 |
82.8 |
5.7 |
1,712 |
10 |
2,908 |
4.3 |
108.2 |
9.7 |
2,923 |
17 |
4,966 |
6.4 |
161.5 |
22 |
6,508 |
37 |
11,057 |
8.3 |
211.6 |
37 |
11,173 |
63 |
18,982 |
10.4 |
264.7 |
58 |
17,487 |
99 |
29,709 |
12.4 |
314.7 |
82 |
24,724 |
140 |
42,004 |
15.6 |
396.8 |
131 |
39,315 |
223 |
66,794 |
19.6 |
496.9 |
205 |
61,643 |
349 |
104,729 |
Ranges apply to compressed air and nitrogen only. Contact us for other gases.
Ordering Information
Order Code |
Description |
VPS.R150.P400.BOX |
VPFlowScope Probe start kit |
VPS.R150.P400.KIT |
VPFlowScope Probe start kit in explorer case |
VPS.R150.P400.VPT.KIT |
VPFlowScope Probe start kit with VPFlowTerminal |
VPS.R150.P400.D0 |
VPFlowScope Probe sensor module (spare part) |
VPS.R150.P400.D2 |
VPFlowScope Probe with connector cap |
VPS.R150.P400.D10 |
VPFlowScope Probe with display, no datalogger |
VPS.R150.P400.D11 |
VPFlowScope Probe with display and datalogger |
All models include calibration report and compression fitting with safety cable. Standard probe length 400mm / 15.4". 300mm and 600mm available on request.
OPTIONS
Order Code |
Description |
VPA.5000.911 |
Bi-directional flow option |
VPA.0001.092 |
Pressure upgrade to 35 bar / 500 psi |
VPA.0001.921 |
Helium gas calibration — includes calibration report |
VPA.0001.951 |
Special gas calibration (Argon, CO₂, Nitrogen) — includes calibration report |
ACCESSORIES
Order Code |
Description |
VPS.D110.000 |
VPFlowScope display module with datalogger |
VPS.D100.000 |
VPFlowScope display module, no datalogger |
VPA.5001.900 |
Connector cap with 5-pin M12 |
VPA.5000.005 |
Cable 5m / 16.4ft — M12 5-pin, permanent install |
VPA.5000.010 |
Cable 10m / 32.8ft — M12 5-pin, permanent install |
VPA.5001.205 |
JB5 Interface Kit — interface box, 5m cable, 12V PSU, RS485-USB cable |
VPA.0000.200 |
Power supply adapter with 5-pin connector — for air audits |
"VPInstruments tools give us easy insight into ways to correct the derivatives, found both in terms of production and use of compressed air."
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