| Sensors: | 
                        Semiconductor sensor 
                        Heat reaction sensor 
                        Thermal  conductivity sensor 
                        Chemical sensor 
                        Infrared sensor | 
                    
                    
                        | Sensors input: | 
                        1 two-wire sensor (e. g. TOX 592) or 1 three-wire sensor  (e.g. GTR 196) | 
                    
                    
                        | Sensor supply: | 
                        20 V DC / 200 mA | 
                    
                    
                        | Ranges: | 
                        Adaptable by software | 
                    
                    
                        | Accuracy: | 
                        < 2 %, f.s.d. | 
                    
                    
                        | Ambient temperature: | 
                        -10 °C to +40 °C | 
                    
                    
                        | Temperature effects: | 
                        < 2 % for a ±20 °C change | 
                    
                    
                        | Installation: | 
                        Panel mounting or wall-mounting | 
                    
                    
                        | Output signals: | 
                        Current output 4-20 mA 
                        RS 232 or RS 485  interface 
                        LON®-Interface 
                        3 Alarm relays 
                        1 Fault  relay | 
                    
                    
                        | Relay rating: | 
                        230 V, 450 VA 
                        other voltages on request | 
                    
                    
                        | Voltage supply: | 
                        230 V, 50 Hz | 
                    
                    
                        | Options: | 
                        115 V, 60 Hz  |  24 V DC  |  12 V DC 
                          | 
                    
                    
                        | Power consumption: | 
                        8 VA |