Installation, use debugging methods: 1. to carry out the following checks before installing, do not meet the requirements, do not allow the use of 1.1 safety signs and safety signs have numbers, there is proof mark and Certificate of Conformity. 1.2 All fasteners by tight, spring washers without loss, the various components of the flameproof enclosure is connected properly. 1.3 All flameproof parts free of cracks and other defects affecting performance explosion. 2 wiring in strict accordance with the requirements of 2.1 to 7.1 in accordance with the choice of cable and wiring drawings. According to the control box current size and condition, the correct selection of the cable. See the applicable minimum outer cable end face seal mark, the minimum cable diameter seals see Fig. 2.2 Check all connections with a multimeter and megger to ensure that no wrong, no short circuit to ground. 2.3 above checks before work is completed correctly plugged in. 3 Commissioning 3.1 phase sequence confirmed: the first use of an electric device to be phase sequence confirmation, the manual valve to the middle position and brought the main power supply to run in the opening direction by "open valve" button, valves, such as contrast, swap any two UVW phase. 3.2 travel stop and adjust the degree of opening: After the phase sequence confirmation, the electric device can adjust the travel limit and opening instructions, see Instruction Manual electrical devices. 3.3 4-20mA output signal adjustment: adjust travel stop in place and can operate reliably after the 4-20mA output signal can be adjusted. 3.3.1 electric valve is fully closed in place, according to the requirements of the electrical device manual potentiometer hang the multimeter to the 2V DC voltage profile, measuring between 11 and 12 on the control module with the open terminal voltage of the absolute value of the valve increases, off valve is reduced, otherwise it will lead to the module swap between terminals 11 and 13. Electric will be adjusted again after the valve is fully closed low-end adjustment potentiometer control module, the control box output exactly 4mA. 3.3.2 electric valve fully open place, adjust the potentiometer to adjust the high-end control module, the control box output exactly 20mA. 3.4 Digital Calibration: After more than commissioning is complete, turn off electric devices in place, then the output current of 4mA, digital press calibration button behind the "RESET", then "0%" button to make the calibration memory, then the screen display "L" flashes; the electric device to open in place, then the output current of 20mA, digital press calibration button behind the "RESET", then "100%" button to make the calibration memory, appears on the display at this time. " H "flashes. 3.5 Remote Control: local / remote switch play to the remote end can be remotely controlled. Within 3.5.1 for DC24V, shown in Figure 6, the remote end only provide passive contact, as shown to the implementation of remote on and off control (Note: The remote access point is not to keep inching opening and closing valve control). 3.5.2 External supply DC24V, DC24V remote side to provide power supply 24V- public terminal connected to the terminal "DC24V- output" side, power supply 24V + are access "Remote Open", "Remote Close", "Remote Hold" to achieve opening and closing valve control (Note: The remote access point is not to keep inching opening and closing valve control). 

keywords: Control box, Jiangsu Lan valves, installation and commissioning,