CL 602 Pigging Indicator

   Overview   

Pigging is part of the routine operations for many offshore and onshore facilities. Operators need a reliable method to confirm that the pig has left the pig launcher or to verify its arrival at the receiver. The CL 602 series pigging indicator is based on our patented ultrasonic intelligent sensor technology platform, featuring a compact structure and ease of use. Its quick and simple installation principle is unmatched by other pigging indicators. Furthermore, it can accurately and reliably detect all types of pigs without any inserts.

   Principle   

The Coolight pigging indicator uses passive acoustic (ultrasonic) technology to sense the pig traveling through the pipeline, utilizing a built-in Lock Frequency Digital Signal Processor (LPDSP). When the pig passes the detector's position, it detects and analyzes signal level changes at multiple frequencies. The indication of the pig's passage can be displayed on a local light on the instrument or through signals output to the control system or indicator panel. The signal output indicates "Pig Passed" (e.g.,relay contacts) or raw pig passage data for further analysis. By using a computer equipped with Coolight's proprietary software or by inputting data into the main control system, users can obtain graphical displays of the signals received from the detector. The output is 4-20mA analog or RS485 digital signal.

   Advantages   

- Real-time measurement

- Non-intrusive

- Easy to install

- Modify without showdown

- local or remote indication

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