The DSES-UW detector is designed to detect and record the passing of Pipeline Inspection Gauge (hereinafter referred to as the PIG). The DSES detects PIG passages by processing signals from 3 different sensor channels and transmitting data to the automatic process control system.
According to the principle of operation, DSES is a contact device and intended for installation directly on the surface of the oil and gas pipeline. The detector is non-intrusively mounted on a straight pipe section with a mounting clamp.
The detector has 3 measuring channels:
• Acoustic channel output from a piezoelectric sensor. Acoustic noise in the frequency range of 100-250 kHz created by a moving PIG is captured using a metal hub pressed against the surface of the pipe and a piezoelectric sensor rigidly mounted on the inner side of the hub.
• 22Hz electromagnetic channel based on an oscillatory circuit; The electromagnetic signal of a low-frequency transmitter, optionally mounted on PIGs, with a frequency of 22 Hz is received by an antenna built into the detector.
• Magnetic channel based on a Hall sensor or inductor. Fluctuations of a constant magnetic field caused by the movement of permanent magnets, also optionally mounted on PIGs, are detected by the same built-in antenna as a signal with frequencies from fractions to units of Hz.
A PIG passage indication occurs when thresholds are exceeded by at least two channels – acoustic (permanent) and electromagnetic OR magnetic. The device can also be configured to activate PIG passage when one channel threshold is exceeded. The levels of threshold values are set by setting a number of parameters for each channel separately using factory configuration software.
Input Voltage: +24VDC (Nominal) +18 to 32 VDC)
Power Consumption: ≤ 2 W
Electronics Configuration: Single
CAN open CiA 443 (SIIS level 2)
Digital RS-485 Modbus RTU
Communication Bid Rate:
Modbus 1200-19200 bps
Canbus 50 or 125 kbps
Principle of Operation: Passive acoustic, electromagnetic, magnetic
Flow Regime: Oil, gas, water, multiphase
Pipe Thickness: 2-25 mm
Pipe Diameter: 300 – 2500 mm
Pipe Material: All types of steel alloys
PIG detection velocity range: 0.1 – 10 m/s
PIG Detection Direction: Bidirectional
Depth: 4,500 m (14,760 ft)
Operating Temperature: -20C to +80C ( -76F to 185F)
Pipe Surface Temperature: -100C to +290C ( -148F to 554F)
Storage Temperature: -50C to +50C ( -58F to 122F)
Design Life: 30 Years
Dimensions: 20” x Ø 5” (500 mm x Ø 130 mm)
Enclosure Material: Titanium Grade 2/ UNS S31803/2205 Duplex SS
13 lbs ( 6 kg) – Titanium
22 lbs (10 kg) – UNS S31803/2205 Duplex SS
11 lbs (5 kg) – Titanium
18 lbs (8 kg) – UNS S31803/2205 Duplex SS
ROV Handle Type :
D-Handle as standard.
(T-handle, Fishtail handle, O-handle available by request)
Xylan 1070, F4210 yellow (detector),
Xylan 1070, F1677 orange (ROV handle)
Hose Type Siemens MKII M25
Connector Type Siemens Aquatron 50 or per specification
Sealing Type: EB welding and O-rings
Funnel Dimensions: 15” x Ø 9” (370 mm x Ø 233 mm)
Enclosure Material: UNS S31803/2205 Duplex SS
Weight in Air: 44 lbs (20 kg)
Weight in Water: 40 lbs (18 kg)
Coating: Xylan 1424 F4210 yellow
Pipe Diameter: > 3 ”