ABOUT
Introduction
A non-invasive clamp sensor is designed to measure process media temperature without pipe penetration. This helps in resolving the major issues caused by the conventional sensors like thermocouples and RTDs with thermowell leading to high installation time, contamination, and leakage due to drilling. Unlike surface-mounted sensors which only measure the pipe surface temperature suffering poor from accuracy due to heat loss, noninvasive sensors provide clamp-on technology to measure internal pipe temperature without drilling or welding the pipe. Manufactured by Tempsens, it consists of a 4 LCD display with an integrated keypad delivering reliable process integrity and safety.

About Non - Invasive Clamp Sensor
Specification of Linear Heat Detection Cable
| Temperature Range* | 0°C – 100°C |
| Ambient Temperature | 0°C – 50°C |
| Accuracy for metal Pipes* | ±2°C |
| Response time | 7 sec. |
| Standard pipe size* | 1, 2 inches (others on request) |
| Pipe Material | Stainless Steel, Copper, Aluminum and other metals |
| Components | Sensor head, Clamp and electronic box |
| Analog Output | 0 – 20mA, 4 – 20mA, 0 – 10V |
| Digital Output | USB 2.0, RS-232 / RS-485 interface card (Optional) |
| Relay Output | Relay Output with hysteresis 60V DC / 42V AC RMS, 0.4A |
| Adjustable Parameters and Features via Keypad | Pipe diameter, Pipe material, user defined thermal resistance, Analog Output, Unit of temperature etc. |
| Power Supply | 12V DC to 28V DC with reverse polarity protection. |
| Operating Humidity | 10-95%, non-condensing conditions |
| Weight & Dimensions | 600 Grams. |
Features Of Non Invasive Clamp Sensor
- Clamp-on feature eliminates drilling, welding or cutting requirements
- Measure temperature range from 0°C to 100°C with ambient upto 50°C
- ±2°C accuracy for metal pipes, with enhanced precision through single or multi-point calibration
- Fast response time of 7 seconds for real-time process monitoring
- 4-digit LCD display with built-in keypad enables on-site parameter configuration
- Analog output of 0 – 20mA, 4 – 20mA, 0 – 10V, USB2.0 digital output, and relay output with hysteresis
- Operates on 12V DC to 28 V DC with reverse polarity protection
- Durable construction design with long service life and minimal maintenance requirements
Application Of Non Invasive Clamp Sensor
- Ensures hygienic non-invasive temperature measurement without contamination risks in dairy, brewing, and food production lines
- Maintains sterile conditions while monitoring critical process temperatures in drug formulation and storage systems in pharmaceutical manufacturing
- Monitors corrosive and hazardous media temperatures without pipe penetration or material compatibility concerns in chemical processes
- Enables flexible temperature monitoring during pilot plant operations and process development trials in R&D
- Validates the accuracy of existing invasive sensors for quality assurance and calibration purposes
Check Catalogue: Link
Why Choose Tempsens for Non-Invasive Clamp Sensors?
- Accurate thermal simulations using advanced technology provide information about non-invasive methods by using appropriate calibration methods.
- Sensors can be installed or moved without having to stop producing, modify piping, or obtain hot work permits.
- Multiple analog and digital output channels ensure easy integration into current control systems/data acquisition systems.
- A variety of custom clamps is available to meet the needs of unusual pipe diameters and/or unique application requirements.
- Data from industries that have used these devices for long periods proves that they are dependable in harsh industrial conditions and require little maintenance for a long time.
FAQ
Frequently Asked Questions
Find answers to frequently asked questions related to Non - Invasive Clamp Sensor.
The non invasive clamp sensor will be mounted externally on a pipe’s outer surface (with no penetration through the wall of the pipe) thus eliminating the need for drilling and welding when installing, while an Invasive sensor directly contacts the process (media) by means of a Thermowell. The noninvasive sensors calculates internal temperature using patented Thermal Algorithms that compensate for material type & thickness of the pipe, ambient temperature, and many other factors, where contaminants are not included in the measurement; Installation of non invasive clamp sensor will also be faster.
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.
