Special Thermal Solutions

This includes using an integrated clamp to hold the clamp sensor in place to the pipe ensuring that there is proper contact between the temperature measurement sensor and the pipe surface. The user must also setup the pipe’s diameter, material, and output via the built-in keypad. Power is supplied through a separate power supply unit that connects to pin 1 of the temperature measuring device using a range of 12-28V DC, and the output connections are made from the non-invasive temperature device to indicate which reference points will provide the most accurate readings.

The non invasive temperature sensor from Tempsens offers an accuracy of ± 2 degrees Celsius, which is achieved when thermally attaching to a metal pipe under normal operating conditions. Calibrating with one reference point or multiple reference points establishes enhanced accuracy according to the type of material being measured, the insulation characteristics of the material being measured, and the actual environment (ambient temperature) in which the measurement is being performed.

Distributed temperature sensors utilize a single piece of optical fiber to provide continuous temperature readings over the total length of the fiber and can be read at thousands of locations at once; in contrast, RTDs and thermocouples only measure temperature at a limited number of separate points. Using a single fiber-based distributed temperature sensor allows for superior area coverage without the need to install multiple sensors. Distributed temperature sensors also require less cabling to connect to an end device and provide safe operation in potentially explosive environments since there are no electrical components located in the sensing area.

The Tempsens DTSenz Distributed Temperature sensing system has a temperature range that is standard from -20°C to +120°C, with specialized cables capable of operating outside of this range as well. The accuracy of the system is ±2°C over the maximum 16 km sensing distance, with a measurement time of 5 seconds. The temperature resolution is 0.1°C, which allows for low thermal deviation. Additionally, the position accuracy of ±0.5 meter provides for a precise location of any temperature variations along the monitored asset.

Fluorescence decay time measures the exponential time constant characterizing how rapidly fluorescent emission intensity decreases after excitation pulse termination. The FluoroSenz system measures this decay time with microsecond precision using advanced signal processing and converts it to absolute temperature through pre-established calibration curves specific to the rare-earth fluorescent material, providing measurements independent of fiber bending losses or connector degradation.

The FluoroSenz fluorescence fibre optic temperature sensor system is capable of reading temperatures between -40°C to 260°C with an accuracy of ±1°C and a resolution of 0.1°C throughout its entire operating range. The PTFE (Poly Tetra Fluoro Ethylene) sheath for the three-millimetre diameter sensing cables provides reliability in temperature ranges of -20°C to 65°C with consistent performance across all operating temperatures.

Fluoroptic temperature sensors (thermometers) are designed to provide complete galvanic isolation and provide complete immunity to electromagnetic interference, magnetic fields, and high voltage (up to 500kV) due to their design; including no metallic electrical conductors between the measurement location and the instrument. This non-conductive design provides complete protection from ground loops, induced currents, transient voltages, and ignition sources while continuing to provide accurate temperature measurement when conventional RTD and thermocouple designs would not or would permit concerns to become a primary hazard in high voltage transformers, switchgear, generators, and MRI machines.

The Fiber Bragg Grating (FBG) provides accurate readings of temperature, strain (both dynamic and static), vibration, pressure, and acceleration over a wide range (-20°C – 900°C). The unique characteristic of the FBG sensor is its ability to function as a multi-parametric monitoring device from a single fiber optic network by measuring the wavelength shift.

The Bragg wavelength is the light wavelength specifically reflected back from the fiber grating. A change in temperature or strain leads to a proportional shift of the Bragg wavelength, so it forms the basis for measurement.

FBG sensors have an accuracy of ±1.0°C. They provide approximately ±2 µε of strain accuracy. Fiber optic cables have high signal-to-noise ratio and can detect even the slightest variations in ambient conditions with high levels of sensitivity.

The Fiber Bragg Grating Sensor has a price point based on its channel configuration, amount of sensing points supported, temperature range and cable length. Tempsens have a competitive price offering that ranges from cost-effective single-point solutions up to full multi-channel networks designed for maximum value for all types of monitoring needs.

A wireless temperature sensor is a modern monitoring instrument for measuring temperature, and it uses LoRa wireless technology to transmit data without wired connections and remote temperature sensing.

Tempsens high-quality wireless temperature sensors use LoRa spread spectrum modulation that allows for better signal penetration in industrial settings with longer ranges than conventional Bluetooth temperature sensors that operate on short-range communication.

You will find wireless temperature monitoring systems in manufacturing, pharmaceutical, food processing, HVAC, cold chain logistics, data centers, and process industries which serve as systems for industrial temperature sensors for precision of application.

Heat: The energy movement from warmer to cooler objects through conduction, convection, or radiation.
Flux: the flow rate of energy passing through a given surface area.
heat flux: Thermal energy transfer rate per unit area over time, expressed in W/cm², W/m², or kW/m².

Heat flow refers to total thermal energy exchange between systems, while heat flux measures energy transfer rate per unit area.

Sensor options – Gardon Gauge or Schmidt-Boelter: Choose Gardon Gauge for high heat flux range (5-5000 W/cm²). Select Schmidt-Boelter for lower heat flux ranges (1-5 W/cm²).
Cooling options: Water cooling is recommended for measurements above 5 W/cm² lasting more than 5 minutes, or when sensor body temperature may exceed 200°C.

Uncooled sensors are suitable for brief measurements or lower heat flux levels. Water-cooled versions enable continuous operation at higher heat flux levels without time limits.

Our sensors provide ±3% to ±5% accuracy depending on the model, with repeatability of 2%.

All sensors provide 10mV linear output at full scale range with infinite resolution, requiring no external power supply.

Standard sensors measure total heat flux (radiation + convection). Radiometer versions with windows measure radiation only.

It depends on usage conditions. We recommend annual calibration for critical applications or after exposure to extreme conditions.

All sensors include manufacturer calibration certificates. ISO standard calibrations are available upon request.

Fiber optic sensors are primarily used in temperature monitoring applications where traditional sensors are ineffective, particularly in environments with high electromagnetic interference, elevated voltages, or limited accessibility.

Optical sensors operate by detecting variations in the properties of light—such as wavelength shifts (in FBG sensors) or fluorescence decay time—caused by changes in surrounding physical parameters like temperature or strain.

Fiber optic sensors offer superior immunity to EMI, higher accuracy, faster response time, and long-term stability compared to conventional electrical sensors.