# 8. Cautions 1\. Do not swallow coupling grease. Please wash hands after using it. 2\. SAFETY: General Power Safety Observe the following guidelines when connecting your equipment to a power source: ● Check the voltage rating before you connect the equipment to an electrical outlet to ensure that the required voltage and frequency match the available power source. ● Also, ensure that your devices are electrically rated to operate with the AC power available in your location. ● Do not plug the equipment power cables into an electrical outlet if the power cable is damaged. ● To prevent electric shock, plug the equipment power cables into properly grounded electrical outlets. If the equipment is provided with a 3-prong power cable, do not use adapter plugs that bypass the grounding feature, or remove the grounding feature from the plug or adapter. ● If you use an extension power cable, ensure that the total ampere rating of the products plugged in to the extension power cable does not exceed the ampere rating of the extension cable. ● If you must use an extension cable or power strip, ensure the extension cable or power strip is connected to a wall power outlet and not to another extension cable or power strip. The extension cable or power strip must be designed for grounded plugs and plugged into a grounded wall outlet. ● If you are using a multiple-outlet power strip, use caution when plugging the power cable into the power strip. Some power strips may allow you to insert a plug incorrectly. Incorrect insertion of the power plug could result in permanent damage to your equipment, as well as risk of electric shock and/or fire. Ensure that the ground prong of the power plug is inserted into the mating ground contact of the power strip. ● Be sure to grasp the plug, not the cable, when disconnecting equipment from an electric socket. 3.If your equipment uses an AC adapter: ● Use only the LORRIC provided AC adapter approved for use with this device. Use of another AC adapter may cause a fire or explosion. NOTE: Refer to your system rating label for information on the proper adapter model approved for use with your device. ● Place the AC adapter in a ventilated area when you use it. ● Do not cover the AC adapter with papers or other items that will reduce cooling. ● The AC adapter may become hot during normal operation. Use care when handling the adapter during or immediately after operation. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.lorric.com/qr/fu-tx310-ultrasonic-flowmeter-manual-en-v3/8-cautions.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.