Subsea PIG Detector
PIG detection made easy and reliable.
The Non-intrusive ClampOn DSP PIG Detector detects and monitors when the PIG is passing the point of installation. Providing reliable information about the passage of the PIG increases pipeline integrity and produces cost savings.
The ClampOn subsea sensors are designed to meet these requirements:
- Designed for a service life of more than 25 years
- Independent redundant electronics
- Independent high and atmosphere pressure chambers
- Electron beam (EB) welding of the chamber against external pressure (no rubber or mechanical seals)
- Glass-metal penetrator as a barrier between high and atmosphere pressure chambers
- Outstanding sensitivity, repeatability, accuracy and signal/noise ratio thanks to Digital Signal Processing (DSP)
The ClampOn DSP Pig Detector, available in topside and subsea versions, is a more compact and user-friendly unit than other instruments on the market. It is easier to install in the field and easier to move to other locations.
DSP involves complete digitalization of the system and the elimination of analogue filters. This technology is increasingly used in a wide range of “smart electronic devices” as it provides sufficient capacity to perform advanced signal-processing tasks in real time. Such devices include medical diagnostic instruments, radar and sonar systems and mobile phones. ClampOn is the only manufacturer of pig detection systems to use DSP, which enables the sensor to operate in several frequency ranges simultaneously, eliminating the danger of the detector being triggered by noise sources other than pigs.
All our instruments are equipped with both digital and analogue interface, and comply with all common protocols. Our instruments can easily be integrated into any existing or new control system. A computer with our software is often used in-between our instruments and the control system. The computer will be used for sand calculation by using the RAW data from our sand detectors and flow data from third party systems, then output calculated sand rate to the control system. All recorded data will also be stored for analyzing and calibration purposes. We always recommend using the digital interface due to following benefits:
- Two way communication enabling instrument software update and configuration
- Full signal range resolution
- All sensor data can be transmitted
- No signal loss
| Principle of operation | Passive acoustics and/or magnetic gate |
| Type of Pig | All types |
| Minimum Pig Speed | 0.3 meter per second |
| Method of installation | Clamped to pipe surface, non-intrusive |
| Sensor electronics | Intelligent DSP electronics with signal processing |
| Interface options | All sensors can be supplied with: Digital RS485 (ASCII, binary, ModBus RTU), Relay, reset |
| Options for subsea: CANBus | |
| Other functions available: Vibration monitoring, sensor selftest | |
| Two-way communication | Yes |
| Software upgrading | Yes |
| Operating Temperature | -40 °C to +150 °C (-40 °F to +302 °F) |
| High temperature fixture | 500 °C (932 °F) |
| Flow regimes | Oil, gas, water, multiphase |
| Diagnostic features | Self test, vibration, 0.25Hz – 1000Hz ±5G |
| Minimum hardware | Pentium III (or equivalent) with 512 MB RAM |
| Software requirements (for Clampon Software) | Windows 2000/2003/XP/Vista |
| Input | Serial, Modbus, ethernet, OPC |
| Signal output | Serial, Modbus, ethernet, Relay, Client Server |
| Power Input | 12 VDC to 30 VDC |
| Power consumption | Typical 1.5 W @24 VDC |
| Water depth | 3000m |
| Max. operating pressure barA | 300 (4351psi) |
| Max. test pressure bar | 345 bar (5000 psi) |
| Housing material | Titanium, grade 2/5 |
| Dimensions excl. handle | ø84 mm x 321 mm (ø3.3 in x 12.6 in) |
| Dry weight, kg (lbs) | 5.2 (11.5) |
| Hose/jumper interface | Siemens Anguila/Aquatron or ODI |
| Independent redundant electronics / single electronic | Yes |
| Gasket/sealing | No |
| EB welding | Yes |
| Glass-metal penetrator | Yes |
| Low pressure / high pressure chamber | Yes |
| ROV installation/retrieval | Yes |
| Retrofit clamp/funnel | Yes |
| Power Supply | 12-30VDC |
| Current draw | Approx. 70mA @ 24VDC |
| MTBF Calculation | >30 years @+60 °C (+140 °F) |
| >80 years @+30 °C (+86 °F) |