Subsea Temperature Monitoring STM

The STM subsea temperature monitoring system combines a submersible platinum resistance temperature sensor with a long cable on a portable storage reel, for temperature measurement under water. The STM-PT100 sensor works on the resistance principle: the electrical resistance of platinum changes at a fixed rate with temperature, and platinum is chosen for its stable resistance change, interchangeability and high temperature coefficient. The sensor is sealed to IP68 with 316 stainless steel wetted parts, and is offered with millivolt, voltage and current output models for industrial and marine applications.

Features

• Temperature range −200 … 350 °C, other ranges on request
• Platinum resistance element, Class A to former JIS C1604-1981
• Submersible sensor with IP68 enclosure
• Stainless steel 316 wetted parts, pressure ratings of 16, 40 or 64 bar
• Millivolt, voltage and current output models
• 0.5 ms response time
• Rated for 70 g sinusoidal vibration (5 … 2000 Hz) and 20 g, 11 ms shock
• Portable storage reels, manual or automatic with motor

How it works

• The platinum element's resistance rises at a fixed rate as temperature rises
• The resistance bulb converts this change into a temperature reading
• The sensor cable is stored on a manual or motorised reel

Options

• Sensor types in the ordering code: PT100 (−200 … 350 °C) and thermocouple types J, K, T, E, N, R and B
• Reel: M (manual) or AT (auto with motor)
• Cable length: 100, 200, 300, 400 or 500 m, or other lengths
• Standard model: STM-PT100-M-100M

Applications

• Subsea temperature monitoring
• Marine applications
• Industrial applications that need a submersible IP68 temperature sensor

LKS supplies the STM subsea temperature monitoring system in Malaysia, with installation, calibration and after-sales support. Contact our engineers to choose the sensor, reel and cable length.