[. . . ] Remove the wall plate from the wall, drill two holes for M4 screws in the wall as marked, and insert dowel into the holes. Position the wall plate over the holes and pull the wires through the wiring opening. Loosely insert the mounting screws into the holes and tighten them (see Fig. Bend the wires to the top to allow wiring connections to the terminals. [. . . ] Configuration jumpers for AQS51/61 Function Jumper top position provides a 0 Vdc or 0 mA start point for OUT1 and OUT2 (0. . . 20 mA or 0. . . 10 V). OUT4 has a 0 V output start point when jumper OUT4 is in the "voltage" position (0. . . 10 V). Jumper bottom position provides a 2 Vdc or 4 mA start point for OUT1 and OUT2 (4. . . 20 mA or 2. . . 10 V). OUT4 has a 0 V output start point when jumper OUT4 is in the "voltage" position (0. . . 10 V). Connection in the "current" position provides a 0/4. . . 20 mA output range for OUT1. Connection in the "voltage" position provides a 0/2. . . 10 Vdc output range for OUT1. Connection in the "current" position provides a 0/4. . . 20 mA output range for OUT2. Connection in the "voltage" position provides a 0/2. . . 10 Vdc output range for OUT2. Connection in the "open collector" position provides an open collector output. Connection in the "voltage" position provides a 0. . . 10 Vdc output range for OUT4. Push Button Operation for AQS61 This sensor has two push buttons, MENU and ESC, located on the front panel behind the flip-down lid. The push button MENU is available for selection of display value or maintenance commands, whereas ESC is available to escape back from a selected level. centration and temperature (alternating), error code, CO2, temperature, output 1, output 2, or output 4. After the device is powered up, the display will always return to the default display mode Display Modes In the DISPLAY MODE, the push button MENU is used to select the value to be indicated on the display: CO2 con- EN1B-0189GE51 R0102 4 AQS 51/61 CO2 / TEMPERATURE SENSOR WITH BUILT-IN CONTROLLER Maintenance Level A number of execution options are available from the MAINTENANCE MENU (see Table 4). This level is accessed only from the display mode in the OUT1 % selection. Simultaneously pressing two push buttons restricts access, intended for competent trained service personnel only (see Fig. The ENTER command is issued by simultaneously pressing MENU and ESC. Always use the ESC button to return to the MENU selection block in the left-hand portion of Fig. Several pushes of the ESC button may be needed to return to the DEFAULT mode. The ENTER command (press MENU and ESC simultaneously) may result in the execution of functions with temporary or permanent changes to parameters affecting sensor/controller outputs and system operation. Table 4. Maintenance functions available on the AQS61 Function line Display Time limit 1 Functional description For checking/adjusting connected auxiliary equipment. Provides access to a sub-menu in which output selection XX = 1. . . 4 is done by pressing 2 MENU. For XX=1, 2 LO always provides 2 V /4 mA regardless of the position of the start point selection jumper, but voltage or current according to the position of the jumper. OFF/ON is true for the relay and open collector outputs. 1 FOUt no FO 1, 2 LO: selected output is fixed to 2V / 4 mA FO 3 LO: relay contact is open FO 4 LO: OUT4 is 0V/open state FOXX HI: selected output is fixed to 10V/20mA/closed state CO2-sensor calibration with fresh air. [. . . ] The warranty period of the product against defects in workmanship and material is one year from date of purchase by the original owner. If the product should become defective within this warranty period, the customer owns the right for repair or exchange the product free of charge. The retailer is not responsible for any consequential loss or damages, which may occur by reason of purchase and use of this product. The warranty is, in any event, strictly limited to the replacement/repair of the product. [. . . ]