TA041 25 MHz 700 V Differential Probe Users Manual This probe complies with IEC-1010.1, IEC-1010.2-031 CAT III, Pollution Degree 2. 1. Safety terms and symbols Terms appearing in this manual: WARNING Warning statements identify conditions or practices that could result in injury or death. CAUTION Caution statements identify conditions or practices that could result in damage to this product or other property. Symbols appearing on the product: Danger Protective Attention High Voltage (Earth) Terminal Refer to Manual DO141-4 TA041 Users Manual Pico Technology 2. General safety summary Please review the following safety precautions to avoid injury and prevent damage to this probe or any products that are connected to it. Observe maximum working voltage To avoid any injury, do not use the probe above 1000 V RMS CAT III between each input lead and earth or between the two input leads. This voltage rating applies to both the 1:10 and the 1:100 settings. Ground the probe This probe is grounded with the shell of the BNC connector and an auxiliary grounding terminal. Before making connections to the input leads of this probe, ensure that its output lead is grounded. You may do this either by connecting the BNC shell to a grounded measurement WARNING instrument, or by connecting the auxiliary grounding terminal to a reliable ground point. Read the next paragraph for further advice. You must verify that the probe is securely grounded before connecting the probe input leads. Some types of measuring instrument, such as a USB oscilloscope connected to a laptop, are unlikely to be grounded even if the laptop is powered from the mains. Bench-top oscilloscopes are usually grounded, but in some cases may have been isolated from ground. A USB oscilloscope connected to a desktop computer is usually grounded. In any case, do not assume that the measurement instrument is grounded. Always verify the ground connection for yourself before connecting the probe input leads. Use fused test prods if necessary If this probe is intended to use for measurements in circuits of INSTALLATION CATEGORY III, it should incorporate with fused test prods. Do not operate without covers To avoid electric shock or fire hazard, do not operate this probe with the covers removed. Do not operate in wet or damp conditions To avoid electric shock, do not operate this probe in wet or damp conditions. Do not operate in explosive atmosphere To avoid injury or fire hazard, do not operate this probe in an explosive atmosphere. 2 Copyright Pico Technology 20082012 DO141-4