Product data sheet EGQ 220, 222: Room transducer, CO2, surface-mounted How energy efficiency is improved Measuring the CO2 concentration for energy-efficient control of the room climate Features • Selective measurement of the CO2 concentration for demand-controlled ventilation of rooms (e.g. meeting rooms, conference rooms, offices, classrooms, etc.) • Available in 2 versions: with and without temperature measurement • CO2 measurement with NDIR1} Dual-beam technology, therefore stable in the long term and largely resistant to external influences • Suitable for 24-hour operation • Calibrated ex works and ready to use immediately • Very fast response to changes in the CO2 concentration in rooms • Temperature-compensated calibration for the standard air pressure of 1013 mbar • The sensors have been developed according to the DIN EN 13779, DIN EN 15251, VDI 6038 and 6040 directives Technical data Power supply Power consumption Max. 3 W (24 V=) | 6 VA (24 V~) Peak inrush current 10 A, 2 ms Parameters Time characteristic In room (0.1 m/s) 2 minutes 21 °C) Pressure dependence Typ.0.135% of the measured value Gradual drift2) < 5% FS or < 10% per year Measuring accuracy ±1% of measuring range (typ. at Ambient conditions Admissible ambient humidity Max. 85% rh non-condensing Construction Connection terminals Screw terminal, max. 1.5 mm2 Cable inlet From behind, top bottom Housing Pure white Housing material ASA Type of protection IP30 according to EN 60529 EMC Directive 2004/108/EC EN 60730-1. Mode of operation 1. Residential premises RoHS Directive 2011/65/EU EN 50581 1 NDIR: Non-dispersive infrared sensor 2) Air flow speed 0,15 m/s, air flow direction, laminar from below upwards. ^ SAUTER Right of amendment reserved © 2015 Fr. Sauter AG

Product data sheet Description Readiness for operation Output signal ^ SAUTER Right of amendment reserved © 2015 Fr. Sauter AG

Product data sheet Note Too much dust in the air can impair the air circulation in the CO2 sensor and cause measurement errors. Heat caused by dissipated electric power Temperature sensors with electronic components are always subject to a certain amount of power loss, which affects the temperature measurement of the ambient air. In active temperature sensors, the higher the operating voltage, the greater the power loss. This power loss must be taken into account in the temperature measurement. At a fixed operating voltage (±0.2 V), this is normally done by adding or subtracting a constant offset...

Product data sheet Power supply Voltage drop Voltage drop Fr. Sauter AG Im Surinam 55 CH-4016 Basel Tel. +41 61 - 695 55 55 www.sauter-controls.com ^ SAUTER Right of amendment reserved © 2015 Fr. Sauter AG