Alpha VS/R Wet-Gas Flowmeter Specifications
| Operating Specifications |
| Supply voltage |
11 to 30 VDC |
| Power requirement |
< 30 W |
| Communications interface |
RS485 Modbus® |
| Process temperature |
-4 to 185°F (-20 to 85°C) |
| Communications |
| Host port |
RS485 serial port will support Modbus protocol only |
| Local display |
6 in. (15.24 cm) color touch screen |
| Mechanical |
| Material options* |
316/316L stainless steel |
| |
Duplex |
| Nominal pipe sizes |
3, 4, 6, 8 or 10 inch |
| Flange style |
ANSI 600, 900 and 1500 |
| Pressure rating |
Up to 3000 psi (206.84 bar) |
| Electronics temperature rating |
-40 to 158°F (-40 to 70°C) flowmeter
14 to 140°F (-10 to 60°C) flow computer |
| Options |
| Water-cut meter |
Red Eye® multiphase water-cut meter |
| Environmental |
| Hazard rating (flowmeter) |
Class I, Division 1 |
| Material |
NACE MR0175/ISO 15156 Compliance |
*For other materials, contact factory
Two-Phase VS Performance
Liquid loading/approx
GVF @ 100 bar |
Type I Wet Gas |
Type II Wet Gas |
Multiphase |
0.02 > XLM > 0.00
99 to 100% GVF |
0.40 > XLM > 0.02
90 to 99% GVF |
XLM > 1.00
0 to 80% GVF |
| Gas rate accuracy |
±5% (rel.) |
±5% (rel.) |
±20% (rel.) |
| Liquid rate accuracy |
±150 bpd (1 m3/hr) |
±20% (rel.) |
±10% (rel.) |
Red Eye Multiphase Performance
| |
95.0 to 99.5% GVF |
20 to 95.0% GVF |
0 to 20% GVF |
| WLR accuracy |
±10% |
±5% |
±2% |
Ordering Variables
| Position |
Choice |
Code |
Description |
| A |
Optional Red Eye1
multiphase water-cut
meter |
|
No Red Eye multiphase water-cut meter |
| R |
Red Eye multiphase water-cut meter included |
| B |
Process line size |
3 |
3 in. |
| 4 |
4 in. |
| 6 |
6 in. |
| 8 |
8 in. |
| 10 |
10 in. |
| C |
Pressure rating |
P6 |
ANSI 600# equivalent,
1200 psi (82.74 bar) cold working pressure (CWP) |
| P9 |
ANSI 900# equivalent, 1800 psi (124.11 bar) CWP |
| P15 |
ANSI 1500# equivalent, 3000 psi (206.84 bar) CWP |
| D |
Flange type |
PRF |
Raised face |
| RTJ |
Ring type joint |
| E |
Wetted material |
316 |
316/316L stainless steel (SS) |
| DUP |
Duplex |
| F |
Differential pressure |
1 |
2 to 200 in. H2O |
| 2 |
10 to 840 in. H2O |
| G |
Static pressure |
1 |
30 to 1500 psia (2.07 to 103.42 bara) |
| 2 |
60 to 3000 psia (4.14 to 206.84 bara) |
| H |
Power |
1 |
11 to 30 VDC |
| 2 |
115 to 230 VAC |
| 1 |
Pressure Taps |
1 |
Open |
| 2 |
Sealed |
1Refer to Red Eye multiphase water-cut meter brochure for configuration options.
The model number for the Alpha is built as follows: Alpha VS/A-B-C-D-E-F-G-H-I
Example: Alpha VS/R-3-P6-RF-316-2-1-1-1 would be described as having an integrated spool Red Eye multiphase water-cut meter, a 3” line, 1200 psi (82.74 bar) CWP, raised face flange, 316/316L stainless steel, 10 to 840 in. H2O differential pressure, 30 to 1500 psia (2.07 to 103.42 bar) static pressure with 11 to 30 VDC supply power and open pressure tap lines.
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