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- Greyline - Model OCF 6.1 - Open Channel ...
Greyline - Model OCF 6.1 -Open Channel Flow Meter
The Greyline OCF 6.1 is an open channel flow meter that doubles as a tank level meter, making it a perfect solution for non-contacting flow and level measurement. The non-contacting open channel flow meter is able to continuously monitor, display, totalize, and data log flow through any flume or weir. The ultrasonic sensor supplied with the OCF 6.1 mounts just 203.2 mm (8 in) above the flowing water giving +/- 0.25% accuracy. The non-contacting open channel flow meter includes a built-in 26 million point data logger and flow reporting system. Use the isolated 4-20mA to transmit flow to remote chart recorders or displays, and the control relays are programmable for level / flow alarm and flow proportionate pulse (for samplers, chlorinators, or remote totalizers).
Use the OCF 6.1 in open channel flow mode for non-invasive flow, irrigation flow monitoring, industrial flow monitoring, and influent and effluent flow.
For tank level measurement, simply mount the ultrasonic sensor at the top of the tank and the separate, watertight electronics / display enclosure is mounted at a convenient nearby location within 152.4 m (500 ft) of the sensor. An intrinsic safety barrier is optional for sensor and cable installations in hazardous rated locations. Get accurate and reliable tank level measurement, stock control, and silo measurement without having to interrupt or shut down the process.
- Non-Contacting Ultrasonic Sensor
- Large, Backlit LCD Display
- 12-Digit Totalizer
- Isolated 4-20mA (1000 ohm)
- 2 Programmable Control Relays
- Automatic Sensitivity Adjustment
- Built-in 5-Key Calibrator
- Optional 26 million point data logger with USB output to flash memory
Spec Name: Description:
- Electronics Enclosure: NEMA4X (IP 66) polycarbonate with clear, shatterproof cover
- Accuracy: ±0.25% of Range or 2 mm (0.8 in) whichever is greater.
- Repeatability & Linearity: ±0.1%
- Display: White, backlit matrix - displays flow rate, totalizer, relay status, operating mode, and calibration menu
- Programming: Built-in 5-key calibrator with English, French, or Spanish language selection
- Power Input: 100-240 V AC 50/60 Hz, see Options. 10 VA max depending on options
- Output: Isolated 4-20mA / 0-5 V, 1000 ohms load maximum
- Control Relays: 2 Relays, form `C` dry contacts rated 5 amp SPDT; programmable level alarm, pump control, pump alternation, failsafe/echo-loss, air temperature alarm
- Electrical Surge Protection: Sensor, 4-20mA and, AC power input
- Data Logger: Built-in 26 million point data logger with a USB output and Windows software
- Operating Temperature (Electronics): -20 °C to 60 °C (-5 °F to 140 °F)
- Approximate Shipping Weight: 4.5 kg (10 lbs)
Sensor Specifications
Spec Name: Description:
- Maximum Range:
- 4.57 m (15 ft) with standard PZ15 sensor
- 10 m (32 ft) with standard PZ32T sensor
- Deadband (Blanking): Programmable, Minimum 203.2 mm (8 in)
- Beam Angle: 8°
- Operating Frequency: PZ15: 92 kHz
- PZ32T: 42 kHz
- Exposed Materials:
- PZ15: PVC
- PZ32T: PVC and Teflon
- Operating Temperature:-40 °C to 65 °C (-40 °F to 150 °F) with automatic temperature compensation
- Submersion Rating: Protected for accidental submersion to 3 m (10 ft) maximum
- Sensor Cables: RG62AU coaxial, 7.6 m (25 ft) standard length, see Options
Options: Description:
- Industrial Automation Protocols: Modbus RTU via RS485
- Sensor Cable: 15 m (50 ft) continuous or 30 m (100 ft) continuous RG62AU coaxial from Sensor, or splice up to 150 m (500 ft) with Junction Box
- Intrinsic Safety Barriers: For sensor mounting in Class I, II, III, Div. 1, 2, Groups C, D, E, F, G hazardous locations
- Power Input: 9 V DC to 32 V DC, 10 W max
- Control Relays: 4 additional (6 total), rated 5 A SPDT
- Enclosure Heater: Thermostatically controlled; recommended for temperatures below 0 °C (32 °F)
- Sunscreen: Sensor sunscreen and enclosure sunscreen for outdoor installations
- Sensor Mounting Stand: Adjustable, includes galvanized steel pipe, flanges, fittings, and hardware