Knick’s Stratos Pro transmitter, available from Gas Alarm Systems , measures pH, redox potential (ORP), conductivity, toroidal conductivity and oxygen concentration values. It's widescreen display indicates operating modes in six different colours.
The standard measuring mode has a white backlight, while displays in the information mode are displayed in green. The diagnosis menu, maintenance requirements and the hold mode are also indicated by specific colours.
The alarm status has been assigned a deep shade of red and invalid input and wrong pass numbers are signalised through a flashing red display. Additionally, concise and self-explanatory pictograms also facilitate operation.
Equipped with universal connection options, the new product family also ensures flexibility in measuring electrochemical parameters. Stratos Pro units support standard analogue sensors as well as digital ISM and digital contact-free InduCon or Memosens sensors.
The Stratos Pro unit enables operation with virtually all standard sensors. The robust, UV-resistant IP67 plastic housing allows for operation in very rugged environments. The display window consists of hardened 3mm safety glass.
The Stratos Pro series includes intrinsically safe two-wire models for use in hazardous areas (zone 1 / Class 1 Division 1) with the sensor installed in zone 0 as well as two-wire models for safe areas. These transmitters feature an analogue current input which allows users to loop through temperature or pressure signals.
Moreover, they are equipped with a second current output for a second measured value. Knick also supply mains-operated four-wire models suitable for use in zone 2 / Class 1 Division 2. These units come with a VariPower wide range power supply unit which can be used with several devices. It allows users to employ the same device with the same order number and with mains supplies at 20 to 253 V AC/DC as well as 45 to 65 Hz. All devices support HART communication and are certified for standard asset management systems.