| Operation and performance |
| Fluid types |
Acoustically conductive fluids, including most clean liquids, and many liquids with entrained solids or gas bubbles. Maximum void fraction depends on transducer, interrogation carrier frequency, path length and pipe configurations |
| Pipe sizes |
Clamp-on transducers: 12.7 mm to 7.6m (0.5 to 300 in.) and larger
Wetted transducers: 25.4 mm to 5 m (1 in to 200 in) and larger |
| Pipe-wall thickness |
Up to 76.2 mm (3 in) |
| Pipe materials |
All metals and most plastics. Consult RS Hydro for concrete, composite materials, and highly corroded or lined pipes. |
| Flow accuracy (velocity) |
0.5% of reading (achievable with process calibration) |
| Typical clamp-on flow accuracy (velocity) |
Pipe ID >150 mm (6 in): ±1% to 2% of reading
Pipe ID <150 mm (6 in): ±2% to 5% of reading |
| Typical wetted flow accuracy (velocity) |
±1% of reading
Accuracy depends on pipe size and installation and whether measurement is one-path or two path. |
| Repeatability |
±0.1% to 0.3% of reading |
| Range (bidirectional) |
-12.2 to 12.2 m/s (-40 to 40 ft/s) |
| Rangeability (overall) |
400:1 |
| |
Specifications assume a fully developed flow profile (typically 10 diameters upstream and 5 diameters downstream of straight pipe run) and flow velocity greater than 0.3 m/s (1 ft/s). |
| Measurement parameters |
Volumetric flow, totalized flow and flow velocity |
| Electronics |
| Flow measurement |
Patented correlation transit-time mode |
| Enclosures |
Epoxy-coated aluminum weatherproof type 4X/IP66 |
| Dimensions |
Standard: Weight 0.9 kg (2 lb), size (h x w x d) 184 mm x 150 mm x 89 mm (7.25 in x 5.9 in x 3.5 in) |
| Channels |
Two channels (for two pipes or two-path averaging) |
| Display |
2-line x 16 character backlit LCD display, configurable to display up to four measurement parameters in sequence |
| Keypad |
Six-button internal keypad |
| Power supplies |
Standard: 85 to 265 VAC, 50/60 Hz
Optional: 12 to 28 VDC, ± 5% |
| Power consumption |
20 W maximum |
| Operating tempe°rature |
-10°C to 55°C (14°F to 131°F) |
| Storage temperature |
-40°C to 70°C (-40°F to 158°F) |
| Standard inputs/outputs |
One 0/4 to 20 mA isolated output per channel, 600 Ω maximum load
One frequency/pulse rate/totalizer output per channel, optically isolated, 3A maximum, 100 VDC maximum, 1W maximum, from 0.1 to 10 kHz
Namur NE043 compliant |
| Digital interfaces |
Standard: RS232
Optional: RS485 (multiuser) |
| European compliance |
System complies with EMC Directive 89/336/EEC, 73/23/ EEC LVD (Installation Category II, Pollution Degree 2) and transducers comply with PED 97/23/EC for DN<25 |
| Clamp-on ultrasonic flow transducers |
| Temperature ranges |
Standard: -40°C to 150°C (-40°F to 302°F)
Optional: -200°C to 400°C (-328°F to 752°F)
See specific transducer for exact temperature range. |
| Mountings |
Stainless steel chain or strap, welded or magnetic clamping fixtures |
| Area classifications |
Standard: general purpose
Optional: weatherproof type 4/IP65
Optional: submersible IP67/68 |
| Additional options |
| PanaView™ PC-interface software |
The AquaTrans AT868 communicates with a PC through a serial interface and Windows® operating systems.
Consult the manual for details on sites, logs, and other operations with a PC. |
