KROHNE OPTISENS TSSX000 TSS sensors and MAC 300 analytical transmitter

With the OPTISENS TSS 3000 and 7000 and MAC 300, KROHNE adds two total suspended solids (TSS) sensors and a transmitter to its analytical portfolio.

The TSS 7000 is for hygienic applications with Tri-Clamp connection, eg, in milk separation, fruit processing and other food and beverage applications. The TSS 3000 is for wastewater applications in various industries with 1¼ NPT thread. It can be used for measurement of solids concentration in plant effluent, eg, for early detection of product loss.

Both are glass-free optical sensors with multiple path lengths for various concentration ranges. They use alternating light 4-beam technology for better measurement compared to classic 2-beam technologies, according to the company. Two NIR LEDs (880 nm) light sources and two detectors compensate for most errors caused by dirt, ageing or light source variations. By measuring directly through a PP layer, measurement errors and sealing problems typically caused by glass windows cannot occur.

Both can be operated with the MAC 300 analytical transmitter. This is a menu-driven analytical transmitter for OPTISENS TSS, pH/ORP and COND sensors. It can be operated with up to three different analytical sensors, processing their signals to the control system via up to six analog 0/4–20 mA outputs, relay outputs or optional Modbus. It features a backlit LCD display, robust housing (IP66/67, NEMA 4/4X) for wall-mount or panel-mount installation, optional live trending and data logging, and an SD card slot to save parameter sets or upload firmware.