Handling Precautions for This Product Installation Precautions WARNING .......... ........................ ........ .............. ................ ........ .............. ...................... torque for connections to the process and to the exhaust. Gas leakage is dangerous because process gas and calibration gas are flammable. Please refer to the leak check instructions in this manual and verify that there is no gas leakage. Do not use the product except at the rated pressure, specified ................................................................................................................................- cumstances might cause damage that leads to a serious accident. For wiring work in an explosion-proof area, follow the work method stated in the explosion-proof policy. Both the process gas and calibration gas (pure methane) are flammable, and if mixedwith air and ignited, they may explode. For safety, do the following before beginning to work. .................................................................................................................... .................. ...... ........ .......... ............ ........................ ...... ........................ ................ recommend the continued use of the gas detector during work. CAUTION After installation, do not step or stand on this unit. Doing so may damage the device or cause injury. Bumping the glass of the display with a tool may cause damage or injury. Be careful. Install the device correctly. Incorrect or incomplete installation will cause output errors and violation of regulations. This product is quite heavy. Protect your feet with safety shoes when working. Do not subject the product to shock or impact. The outlet of the GasCVD should be connected to ventilation tube with an inner diameter lange enough not to be affected by backpressure. It should open to the air in a place not affected by wind, rain or snow. Natural gas and methane are discharged directly from the vent, so the vent should be located where human beings will not be harmed. .......... .................. ........ .............. ...... ........ .......... ...... ................ .......... ............ inert gas, to protect the device, do not blow gas into GasCVD. Wiring Precautions WARNING Do not do wiring work with wet hands or while electricity is being supplied to the product. There is a danger of electric shock. .......................................................................................................................... power. CAUTION .......................................................................................................................... to wire correctly. Incorrect wiring can cause device damage or malfunction. Supply electric power correctly according to the specifications. Supplying power that differs from the specifications can damage the device. ...................................................................................................... Never open the case cover while the GasCVD is ON in a hazardous location. Handle the GasCVD with care. It may lose its explosion-proof performance due to corrosion. Explosion-proof performance is not guaranteed unless the case is LOCKED. Always tighten the case cover completely and lock it. Maintenance Precautions WARNING ......................................................................................................................- sidual pressure or residual process gas. Leakage of process gas is dangerous. .......................................................................................................................... do not come into contact with vented gas. There is a danger of burns or other physical harm. .......................................................................................................................... not open the cover. Opening the cover may cause an explosion. CAUTION This product was kept under carefully controlled conditions until it was shipped. Never try to modify this device. Doing so could damage it. Precautions for Using Communication Devices .......... ............ .... ............................ .............. .......... ...... .... .......................... .......... .............. ........ phone, or pager near this device, observe the precautions below. Otherwise, depending on the transmission frequency, this device may not function properly. Determine beforehand the minimum distance at which the communication device will not affect the operation of this device, and maintain a separation greater than that distance. Make sure the cover of its transmitter section of this device is closed before using the communication device. Precautions for Communication If transmitter output is reduced to 3.2 mA or less because of burnout, etc., communication with a HART communicator may not be possible. Try turning off the power, rebooting, and restarting communication. Hazardous Area Certifications GasCVD complies with the types of protection that are based on the standards listed below. 4