Operation and Performance |
Fluid Types |
Acoustically conductive gases with minimum density requirements (see Installation Requirements Table) |
Pipe Sizes |
- Most gases: 0.75 to 24 in NB (20 to 600 mm DN) and larger
- Steam: 4 to 12 in NB (100 to 300 mm DN) |
Pipe Wall Thickness |
Thicker walled pipes require higher gas density (see Installation Requirements Table) |
Pipe Materials |
Most metals and plastics. No lined pipes. |
Flow Accuracy (Velocity) |
- For pipes 6 in (150 mm) and smaller: ±2% to 5% of reading typical
- For pipes larger than 6 in (150 mm): ±1% to 2% of reading typical
Accuracy depends on pipe size and whether measurement is one-path or two-path. Accuracy to ±0.5% of reading may be achievable with process calibration.
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Repeatability |
±0.2% to 0.5% of reading |
Range (Bidirectional) |
See Installation Requirements Table |
Rangeability (Overall) |
See Installation Requirements Table |
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Specifications assume a fully developed flow profile (typically 20 diameters upstream and 10 diameters downstream of straight pipe run) and flow velocity greater than 5 ft/s (1.5 m/s). |
Measurement Parameters |
Standard and actual volumetric flow, and flow velocity |
Electronics |
Flow Measurement |
Correlation Transit-Time mode |
Enclosures |
- Standard: Epoxy-coated aluminum
Type 4X/IP66 Class I, Division 2, Groups A,B,C&D
- Optional: Stainless steel, fiberglass, explosion-proof,
flameproof II 2 G EEx d IIC T6) |
Dimensions |
Standard: Weight 11 lb (5 kg), size (h x w x d) 14.24 x 11.4 x 5.1 in (362 x 290 x 130 mm) |
Channels |
- Standard: One channel
- Optional: Two channels (for two pipes or two-path averaging) |
Display |
Two independent software-configurable 64 x 128 pixel backlit LCD graphic displays |
Keypad |
39-key, tactile-feedback membrane keypad |
Power Supplies |
- Standard: 100 to 130 VAC, 50/60 Hz or 200 to 265 VAC, 50/60 Hz
- Optional: 12 to 28 VDC, ±5% |
Power Consumption |
20 W maximum |
Operating Temperature |
-10° to 55°C (14° to 130°F) |
Storage Temperature |
-40° to 70°C (-40° to 158°F) |
Standard Inputs / Outputs |
Two 0/4 to 20 mA isolated outputs, 550 Ω maximum load |
Optional Inputs / Outputs |
There are six additional slots available for any combination of the following I/O boards:
• Analog outputs: Select up to three additional output boards, each with four isolated 0/4 to 20 mA outputs,1 kΩ maximum load
• Analog inputs: Select up to three boards of one of the following types:
- Analog input board with two isolated 4 to 20 mA inputs and 24 V loop power
- RTD input board with two isolated, three-wire, RTD inputs; span -100° to 350°C (-148° to 662°F); 100 Ω Pt
• Totalizer/frequency outputs: Select up to three totalizer/frequency output boards, each with four outputs per board, 10 kHz maximum. All boards allow software-selectable functioning in two modes:
- Totalizer mode: Pulse per defined unit of parameter (e.g., 1 pulse/ft3)
- Frequency mode: Pulse frequency proportional to magnitude of parameter (e.g., 10 Hz = 1 ft3/h)
• Alarm relays: Select up to two boards of one of the following types:
- General purpose: Relay board with three Form C relays; 120 VAC, 28 VDC maximum, 5 A maximum; DC 30 W maximum, AC 60 VA
- Hermetically sealed: Relay board with three hermetically sealed Form C relays; 120 VAC, 28 VDC maximum, 2 A maximum; DC 56 W maximum, AC 60 VA |
Digital Interfaces |
- Standard: RS232
- Optional: RS485 (multiuser)
- Optional: Modbus® RS458 or TCP protocol
- Optional: Ethernet
- Optional: OPC server
- Optional: Foundation fieldbus |
Site Parameter Programming |
Menu-driven operator interface using keypad and “soft”
function keys |
Data Logging |
Memory capacity (linear and/or circular type) to log more
than 43,000 flow data points |
Display Functions |
- Graphic display shows flow in numerical or graphic format
- Displays logged data and diagnostics |
European Compliance |
Complies with EMC Directive 89/336/EEC, 73/23/EEC LVD
(Installation Category II, Pollution Degree 2) |
Clamp-On Ultrasonic Flow Transducers |
Temperature Ranges |
- Standard: -40° to 130°C (-40° to 266°F)
- Optional (overall range): -40° to 230°C (-40° to 446°F) |
Mountings |
Anodized aluminum or stainless steel clamping fixture
with rigid rails, chain or strap |
Area Classifications |
- Standard: General purpose
- Optional: Weatherproof Type 4X/IP65
- Optional: Explosion-proof Class I, Division 1, Groups B,C,&D
- Optional: Flameproof II 2 G EEx md IIC T6-T3 |