Signal Processing Unit and Flow Controller IEC Ex-Certified Processing Units for Sensors and the Ex-Proof Flow Controller
EGE offers IEC Ex-certified signal processing units for the growing range IEC Ex-approved two-wire sensors. In addition to this, for flow monitoring of aqueous or oily fluids in hygienic applications, the company also provides the STD flow controller with an aseptic Varivent F process adapter.
The certification greatly facilitates exporting the intrinsically safe sensors to many countries around the world – machine manufacturers and plant engineers can now use them in applications where they were previously barred or had to be specially certified in a tedious process, mentions the firm. The type IKMb 122 Ex signal processing units connect to intrinsically safe EGE two-wire sensors for hazardous gas and dust atmospheres. They feature a space-saving, 22 mm wide DIN rail housing and are installed outside the hazardous area. Green, yellow, and red LEDs on the front side indicate the operating status and signal alarms, if the integrated cable breakage detection or the short-circuit monitoring is triggered. The output can be set as normally closed or normally open.
Ex-Proof Flow Controller with Aseptic Process Adaptation
For flow monitoring of aqueous or oily fluids in hygienic applications, EGE also provides the STD flow controller with an aseptic Varivent F process adapter. The thermal sensor is suitable for use in category 2 hazardous areas. It detects flow velocities between 1 cm/s and 10 cm/s in water and between 3 cm/s and 200 cm/s in oil. Depending on the temperature class of the explosive gas mix it is exposed to, it is suitable for ambient temperatures from -20 °C to +85 °C. The process adapter has an IP67 protection rating and withstands pressures up to 60 bar, adds the company. The flow controller is connected to the SKZ analysis device via a PUR cable.