Our specialists have successfully completed the development of the new DN-02 upper roller tension sensor. The sensor is designed to measure logging cable tension, convert the registered output signal into a digital code, and transmit it for recording at the logging station and storage in built-in memory.

The sensor consists of a measuring device with autonomous power supply mounted on the upper roller attachment unit, and a receiver unit connected to the logging station. Communication between the tension gauge and receiver is established via radio channel.

Main technical specifications:

• Logging cable tension measurement range: 0 to 100 kN
• Measuring unit output: Digital radio channel 433.5 MHz
• Guaranteed range (line-of-sight conditions): 100 m
• Receiver unit outputs: Digital: RS485, Analog: 0...5V
• Basic measurement error: ±5%
• Maximum allowable load: 270 kN
• Operating temperature range: -40 to +70°C
• Gauge power supply: 4x 1.25V AA size
• Continuous operation time (at full battery charge): 200 hours

The DN-02 tension sensor has successfully passed field tests and demonstrated high reliability and measurement accuracy.