EC22 O transmitter with display

Transmitter for oxygen measurement with partial pressure sensor and display

If you need to monitor oxygen in applications with high helium concentrations, that would influence other oxygen sensors' results, the EC22 O transmitter (display version) is a reliable and economical solution. It transmits measured values and status notifications via analog (0.2-1 mA or 4-20 mA) or digital (RS-485) signal, while also indicating them on the device's display. In the event of an alarm, it will warn everybody in the vicinity using its internal buzzer. In combination with GfG's reliable controllers, it can be installed in new gas detection systems or retrofitted into existing ones.

The EC22 O transmitter with display uses the electrochemical method (EC) to detect oxygen. The current measured value is displayed on the 2.2-inch display, which lights up red in the event of an alarm. The long-life partial pressure sensor measures the oxygen concentrations in a measuring range of 0 to 35 vol % with total accuracy, even in air containing helium. Its accurate measurement is made possible by the automatic temperature compensation and the linearization of the measurement signals.

Device protection
The housing is protected against the ingress of dust and water (protection class: IP54). An optional weatherproof housing provides additional protection.

Communication and service
Signal transmission is carried out via the analog industry standard (optionally 0.2-1 mA or 4-20 mA) or the digital RS-485 interface (Modbus protocol). The EC22 O uses two status LEDs to indicate its operating status. Service and adjustments can be carried out intuitively on site, using three keys directly on the device (one-man adjustment). Its multicolor backlit display shows the current measured value, status messages and the menu. Test gas for function tests can be inserted via a flow adapter.