O2 PROBE – SUPPLY VOLTAGE: 115/230 VAC 15% – POWER CONSUMPTION: 65VA – SUPPLY FREQUENCY: 50/60 HZ 5% – OPERATING TEMPERATURE RANGE: 0 TO 60ºC – CONTROL UNIT PROTECTION CATEGORY: IP20 OR IP65 – CONTROL UNIT DIMENSIONS – IP20: 196 X 287.67 MM – CONTROL UNIT DIMENSIONS – IP65: 200 X 280 MM – CONTROL UNIT WEIGHT: 3 KG – DISPLAY TYPE (OPTIONAL): DOT MATRIX OF 40 CHARACTERS – MAXIMUM NUMBER OF FUELS: 2 – AUXILIARY ANALOG INPUTS: 0 – 5V (1MA MAX.) / 4 – 20MA (SWITCH SELECTED) – MODULATION INPUT: 0 – 5V (1MA MAX.) / 4 – 20MA (SWITCH SELECTED) – BURNER ON/OFF AND FUEL SELECTION INPUTS: 115/230VAC 1.5MA MAX. – ALARM OUTPUTS: 2 X MONOPOLAR SWITCHING – CONTACT RATING: 2A @ 250VAC RMS. – NUMBER OF 4-20MA CURRENT OUTPUTS: 4 (ISOLATED) – MAXIMUM LOOP RESISTANCE: 750 OHMS – ISOLATION VOLTAGE: 50V – RS485: 2 – WIRE (INSULATED) WITH GROUND, TERMINATION RESISTOR SELECTED USING A LINK. SPECIFIC PROTOCOL ETC. SEE HA221471 (ETC SERIAL COMMUNICATION PROTOCOL MANUALS) FOR DETAILS – INSULATION VOLTAGE: 50V – INTERFACE FOR OXYGEN PROBE: ETC SPECIFIC – INPUT TEMPERATURE INPUT: 2 WIRES R.T.D. STACK TEMPERATURE INPUT: TYPE K THERMOCOUPLE – TEST GAS SOLENOID OUTPUT: 150MA (MAX) 50V MAXIMUM SUPPLY VOLTAGE – CALIBRATION GAS SOLENOID OUTPUT: 150MA (MAX) @ 30VAC – MAXIMUM DISTANCE BETWEEN PROBE AND O CONTROL UNIT