Introduction
In the oil, gas, and petrochemical sectors, precise temperature and moisture measurement are essential for process safety, product quality, and energy efficiency. From refining and gas compression to storage and transportation, every stage of operation relies on accurate instrumentation that performs reliably under harsh conditions, high pressure, corrosive media, and wide temperature swings.
STN Instruments provides a comprehensive portfolio of temperature probes, transmitters, and dew-point transmitters engineered to meet these critical demands with long-term stability and traceable accuracy.
Temperature Probes for Process Reliability
STN’s industrial temperature probes are built using platinum resistance (Pt100 / Pt1000) and thermocouple elements, ensuring high precision across broad temperature ranges.
- Measurement Range: -200 °C to +600 °C (application dependent)
- Accuracy: 1/10 Class B, Class A
- Configurations: threaded, flanged, sanitary, and explosion-proof
- Protection: stainless-steel sheath (316L / Inconel optional) for chemical resistance
These probes provide fast response and repeatable readings for pipelines, reactors, and process vessels enabling tighter process control and minimizing energy losses.
Temperature Transmitters for Harsh Industrial Conditions
Paired with the probes, STN’s two-wire temperature transmitters convert raw sensor signals into 4 to 20 mA or Hart Protocol with excellent noise immunity and signal integrity over long distances.
Key features include:
- High accuracy and linearization over the full measurement range
- 4000 V surge protection and EMC-compliant design for reliability in electrically noisy environments
- Rugged IP67 enclosures for field installation
- Configurable via USB or HART programmer
These transmitters are ideal for monitoring heat exchangers, compressors, and storage tanks, where stable signal transmission is critical for distributed control systems (DCS).
Dew Point Transmitters for Gas Drying and Process Safety
In natural gas and petrochemical processing, moisture control is vital to prevent corrosion, hydrate formation, and product contamination.
STN’s dew-point transmitters use advanced aluminum-oxide or polymer sensors with temperature compensation to measure moisture content with high sensitivity:
- Measurement Range: -80 °C to +20 °C Tdp
- Accuracy: ±2 °C Tdp typical
- Output: 4 to 20 mA / Modbus RTU
- Applications: gas drying units, desiccant dryers, hydrogen generation, and compressed air systems
With their fast response and long-term stability, STN dew-point transmitters provide early detection of moisture ingress, protecting valuable process equipment and ensuring product purity.
Designed for Safety, Reliability, and Compliance
All STN measurement devices are developed and tested to meet industrial and environmental standards, with options for calibration conforming to ISO/IEC 17025 calibration and custom configuration for integration into hazardous-area systems.
Their durable stainless-steel construction and field-proven electronics ensure minimum maintenance and maximum uptime, essential in 24/7 process environments.
Conclusion
From upstream gas drying to downstream refining and storage, STN’s temperature and dew-point measurement solutions provide the accuracy, durability, and traceability the oil, gas, and petrochemical industries depend on.
By combining robust sensors, intelligent transmitters, and reliable calibration support, STN Instruments helps customers maintain process integrity, safety, and operational efficiency — even under the most demanding conditions.
🌐 Learn more: www.stninstruments.com
STN Instruments – Reliable Measurement for a Trusted World.