XDI-XDI-win/30J Semiconductor Sensor

WIN versions of the sensor have an LCD display which shows the Gas and range together with the sensor address and a display of the number of seconds until an autozero will occur. Also incorporated are 3 reed switches which can be activated using external magnets through the glass window of the flameproof XDIwin enclosure. These magnets do not act instantly and have to be in close proximity to L, M and R on the front display for a few seconds to activate a software setup function.The right magnet allows the CAN address of the sensor to be changed. When the address menu is displayed with a prompt to remove the magnet, and then the display shows the address and that the right magnet will decreases it whilst the left magnet will increase it. This is then stored in internal non-volatile memory and the display will automatically revert to normal operation. The centre magnet is used to inhibit the sensor. As with the left and right magnet functions the display requests that you remove the magnet and then the state of inhibit appears on the LCD. The left magnet then puts the sensor into inhibit whilst the right magnet removes it. The amber LED on the front panel under the LCD flashes when the sensor is inhibited. When all magnets are removed, the display will revert to normal operation. The direction of the alarms is displayed as ^ for rising and v for falling but these can be changed using left and right magnets together. The left and right magnets together allow the calibration menu to be used. Removing both magnets as instructed on the LCD presents the first part of this multi menu which is ZERO. With no gas present the display shows the PPM value but also typically [0.02] This number between the square brackets shows how close the autozero has achieved. [0.00] is definite zero and the PCB led D1 will be flickering orange.