Siafa SKY2000-M4 Manuals

www.szyuante.com Shenzhen YuanTe Technology Co., Ltd. Tel: 86-755-26722925 Fax: 86-755-85258143 Web：www.szyuante.com User Manual-SKY2000-M4 Thanks for purchasing our product. Please read the user manual carefully before using. Keys Operation: ON/OFF: long press for 3s to turn on/off the device, short press to confirm or save data. Menu: in detection mode, press this button to enter into parameter setting mode, and in parameter setting mode, press this button to move the cursor. Plus: in parameter setting mode, short press it to select items upward or add value. Long press for 3 seconds to turn on/off alarm function quickly. Minus: in parameter setting mode, short press it to select items downward or decrease value. Long press for 3 seconds to turn on/off air pump quickly. Exit: in parameter setting mode, short press it to go back to previous menu. Long press to shift the gas concentration unit quickly. (Note: The long press function only work in detection interface. When you change or reset any data, please remember to click to confirm and save the settings. Remember to turn on the pump when start the detection) Power On Press the “ON/OFF” for three seconds, the detector will be turned on and the pump will start to work. The screen displays the following interface successively: Brand and Logo, main parameter interface, initialing countdown. The countdown would be 60 seconds, which is to make sure that the sensors are fully activated. After 60 seconds, the device enter normal detection interface. Zero Calibration Zero calibration must be done in clean air. Zero calibration is needed when there is zero shift happens. Put the detector in clean air for 3-5 minutes, under the detection interface, press the “PLUS” and “MINUS” buttons at the same time for three seconds, the data of all channels will reset to zero automatically. Note: Zero calibration of oxygen detector, nitrogen detector and carbon dioxide detector (target gases are component of the air), the data will be defaults to 20.9%VOL (O2), 79.1%VOL (N2), 400ppm (CO2). Do not do the zero calibration in not clean air or when there is no zero shift happens.