TA057 25 MHz 1400 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 Issue history: Terms appearing in this manual: 1 28.8.2008. WARNING Warning statements identify conditions or practices that could result in injury or death. CAUTION Caution statements identify conditions or practices Pico Technology that could result in damage to this product or other property. James House Colmworth Business Park St. Neots Symbols appearing on the product: PE19 8YP United Kingdom www.picotech.com Danger Protective Attention High Voltage (Earth) Terminal Refer to Manual Lemo , Probus and Pico Technology are registered trademarks. Manufactured in Republic of China. 8 Copyright Pico Technology 2008 DO143-1 DO143-1 Copyright Pico Technology 2008 1 2. General safety summary 8. Derating curve Please review the following safety precautions to avoid injury and prevent damage The derating curve for absolute maximum input voltage in common mode is as to this probe or any products that are connected to it. follows: 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 10000 both the 1/20 and 1/200 settings. Must be grounded This probe is grounded with the shell of the BNC connector and an auxiliary 1000 1000 grounding terminal. 1000 700 WARNING 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 instrument, or by 150 connecting the auxiliary grounding terminal to a 100 reliable ground point. Read the next paragraph for further advice. 1.E+06 1.E+07 1.E+08 Frequency (Hz) 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 9. Test procedure computer is usually grounded. In any case, do not assume that the measurement instrument is grounded. Always verify the ground connection for yourself a. Connect the BNC output connector to the vertical input of a general-purpose before connecting the probe input leads. oscilloscope. b. To install four AA cells or connect an appropriate mains adaptor or power lead Use fused test prods if necessary to the correct line voltage. c. Set the oscilloscope input coupling to DC and 1 V/div. Center the trace on the If this probe is intended to use for measurements in circuits of INSTALLATION display. CATEGORY III, it should incorporate with fused test prods. d. Connect the inputs of the probe to power lines. e. Set the range of the probe to 1/100 or 1/200. Do not operate without covers f. A 50 Hz / 60 Hz sine-wave of 1 V amplitude will be displayed on the screen of the oscilloscope. This means the probe is working properly. To avoid electric shock or fire hazard, do not operate this probe with the covers removed. 10. Cleaning Do not operate in wet or damp conditions Use a soft cloth to clean the probe, taking care not to cause damage. To avoid electric shock, do not operate this probe in wet or damp conditions. a. Do not immerse the probe. b. Do not use abrasive cleaners. Do not operate in explosive atmosphere c. Do not use chemicals contains benzene or similar solvents. To avoid injury or fire hazard, do not operate this probe in an explosive atmosphere. Avoid exposed circuitry To avoid injury, remove jewelry such as rings, watches and other metallic objects. Do not touch exposed connections and components when power is present. 2 Copyright Pico Technology 2008 DO143-1 DO143-1 Copyright Pico Technology 2008 7 Voltage (V RMS)