OCF 6.1 Open Channel Flow & Tank Level Meter

Brand: Pulsar Measurement

The OCF 6.1 is an open channel flow meter that doubles as a tank level meter, making it a perfect solution for both non-contacting flow measurement 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. 

This non-contacting open channel flow measurement device includes a built-in 26 million point data logger and flow reporting system. 

Use the isolated 4-20 mA 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.
Features
  • Non-Contacting Ultrasonic Sensor
  • Large, Backlit LCD Display
  • 12-Digit Totalizer
  • Isolated 4-20 mA (1,000 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

Specifications

Electronics Enclosure

  • NEMA 4X (IP66) 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 Vac 50/60 Hz, 10 VA Max.

Output

  • Isolated 4-20 mA / 0-5 V, 1,000 ohms Load Max., Programmable Offset

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, 4-20 mA and AC Power Input

Data Logger

  • Built-in 26-Million Point Data Logger with a USB Output and Windows® Software

Operating Temperature

  • Sensor: -40° to 65° C (-40° to 150° F) with Automatic Temperature Compensation
  • -20° to 60° C (-5° to 140° F)

Exposed Material

  • PZ15: PVC
  • PZ32T: PVC and Teflon

Maximum Range

  • 4.57 m (15 ft) with Standard PZ15 Sensor
  • 10 m (32 ft) with Standard PZ32T Sensor

Certifications & Approvals

  • CE, cCSAus

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