The Introtek DDSI is a non-invasive optical drip detect sensor engineered to provide real-time monitoring of oil drip rates in sight glasses or drip chambers. It is specifically designed for critical lubrication applications such as vertical turbine irrigation well pumps, compressors, and gearboxes where consistent oil flow is essential to prevent equipment damage.

Technology & Features

The DDSI utilizes advanced optical sensing technology to detect the presence and rate of oil droplets passing through a transparent sight glass. The sensor is mounted externally, with no contact with the oil, ensuring zero contamination risk and easy installation. When the drip rate falls below a user‑configurable threshold, the sensor triggers an output signal, which can be used to shut down the pump, activate an alarm, or initiate other corrective actions.

• Non‑invasive design: No cutting of lines or contact with fluids.
• Real‑time monitoring: Immediate detection of flow rate changes.
• Low power consumption: Suitable for battery‑powered or remote installations.
• Maintenance‑free: No moving parts, no fouling.
• Customizable: Can be adapted to various sight glass sizes and shapes.

Key Applications

• Oil‑lubricated vertical turbine irrigation well pumps.
• Industrial compressors and vacuum pumps.
• Gearboxes and bearing lubrication systems.
• Any application where monitoring of low‑flow oil drip rates is critical.

Installation & Operation

The DDSI sensor is easily installed by clamping or adhering it to the outside of a clear sight glass or drip chamber. No special tools or plumbing modifications are required. Once powered, the sensor continuously monitors the drip rate. The output can be configured as normally open or normally closed, and the threshold level can be adjusted (depending on the model). An LED indicator provides local status indication.