System function mode, press SET button for 3 seconds to enter the system setup elettrotec pressure switch, then press the SET button in order to display the following function mode. After all the function mode setting is completed, press (ON / OFF) key to setting run automatically stored in a computer chip. Technical parameters Measuring range: -100Kpa ~ 200MPa; supply voltage: 12 ~ 35V DC (24V DC calibration voltage) / AC power supply output relay 220vAC capacity: 380V 3A, 220V 5A, 24V DC 5A equal precision: better than 0.0.5% FS , 1% FS and other settings range: full scale segment can set the sampling rate: 10 times / sec (speed can be customized according to customer requirements). Connection thread: M20 * 1.5, G1 / 4, G1 / 2,1 / 4NPT (can be customized according to customer needs) and processing pressure switch, tour grace (certified), a pressure switch is provided by Beijing Tour TU Technology Limited. Beijing Tour En Technology Co., Ltd. (www.bjyouen.com) (www.bjyouen.com) is the Beijing Haidian District, chemical instrumentation leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum meet customer needs. Well leader in travel with the staff warmly welcome all inquiries negotiations to create a better future tour grace.