Description
Overview
GAOTek ultrasonic open channel flow meter is used to the measurement of flow within open, partially-filled and free flow channels and the open channel flow meter must be used with the measuring weirs and is mainly used to measure sewage flow within the channel under open, partially filled and free flow conditions.
Technical Specification
| Cumulative flow | 4000000000 m3 |
| Dead band | 0.35 m |
| Pressure | Below 3 barometric pressure / 2000 m below sea level |
| Meter display | Displays instantaneous flow and cumulative flow, liquid level, echo waveforms and historical curves |
| Measuring range | 0.1L/s to 120000 m3/s (Instant Flow), 0.35 m to 3.000 m (Level) |
| Measuring accuracy | Triangular weir 1% to 5%/rectangular weir 3% to 5% / Parshall flume 2% to 3% (Flow), +-0.3% FS (standard condition) (Level) |
| Power supply | DC18 V to 36 V / 100 mA or AC 85 V to 265 V / 3 W |
| Flow recorder | Can query the cumulative flow of any time during the last 8 years |
| Waterproof Level | IP 67, IP 65 |
| Explosion protection class | EX d[ia]iaâ…¡BT4, N/A |
| Materials | Aluminum alloy, ABS (Transmitter), ABS / ETFE / PTFE (probe) |
| Interface | M 0.78 in × 0.05 in (20 mm x 1.5 mm), PG 11 waterproof connector (Electric), G 2 in (Process) |
| Temperature | -4 °F to 140 °F (-20 ℃ to 60 ℃) (Environment), -4 °F to 194 °F (-20 ℃ to 90 ℃) (specify in order where a temperature of over 140 °F (60 ℃) is a necessity) (Process) |
| Output | 12 bit, with load of less than 500 Ohm (Analog current), RS 485 / ModBus agreement (Digital signal), Switching values of 2 to 4 circuits (Switching value) |