Magnetic Probe Extensometer
Model: SJ-1900

│ DESCRIPTION │
Model SJ-1900 magnetic probe extensometer is designed to measure settlement or heave through movement of probe in PVC access pipe. Ring magnet and Spider magnets and magnet plate are installed at PVC access pipe and borehole. Probe sense magnetic position. If probe reach spider magnet, LED lamp is "ON" and buzzer rings. When signal is "On", operator measure milimeter grduation in tape.

│ COMPOSITION │

• Probe
• PVC aceess pipe
• Ring magnet
• Magnet indicator
• Spider magnets
• Telescopic section
• Magnet plate

│ CHARACTERISTIC │
Ring magnet at the bottom of access pipe and immovable layer and insert spider magents at plaining depths. Reed switch is installed in probe and, if probe sense magnet filed during probe is lifted dowm, reed switch close and buzzer and LED lamp is operated automatically.

│ SPECIFICATION │

※ The product spec is subject to change without prior notice in order to enhance the product’s quality.