Optical DO sensor added to GF Piping range

A optical sensor to measure dissolved oxygen (DO) with high reliability and reduced maintenance and energy costs has been added to instrumentation available from GF Piping Systems.

Traditionally, dissolved oxygen has been measured utilizing galvanic or polarimetric measurement technologies that require membranes and reference solutions. GF Piping‘s optical DO technology eliminates the need for replacement of membrane and reference solutions associated with these types of technologies, thereby reducing maintenance costs.

The Signet 2610 Optical DO Sensor incorporates an optical sensor cap that is factory calibrated and requires no field calibration. The cap features a one‑year lifetime compared with membrane life, which is typically 3‑6 months. Long service‑life is further enhanced through the optical technology’s resistance to abrasion and bleaching.

The 2610 was designed primarily for wastewater treatment applications. By using the new sensor to monitor the DO levels in a wastewater system, operators can reduce the energy demand for the system.

Key features to the new sensor include rugged materials of construction that can withstand the harsh environments of both fresh and saltwater applications. Built-in Modbus RS485 and 4-20 mA current loop outputs provide ease of interface to existing control systems.

Combining the sensor with the new 9900 transmitter provides a cost‑effective DO monitoring system. Operating capabilities include a measurement range of 0-20 mg/L, 0-200% saturation, and accuracies of: ±0.1 mg/L for 0-8 mg/L and ±0.2 mg/L for 8-20 mg/L. The new sensor is CE and FCC approved and available with two week lead-time.