TA042 100 MHz x100/x1000 Differential Probe Users Manual This probe complies with IEC-1010.1, IEC-1010.2031 CAT III, Pollution Degree 2. 1. Safety terms and symbols Issue history: Terms appearing in this manual: 1 8.8.2008. 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 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 DO137-1 DO137-1 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 is as follows: 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 1/100 and the 1/1000 settings. 10000 Must be grounded 1000 1000 1000 This probe is grounded with the shell of the BNC connector and an auxiliary grounding terminal. WARNING Before making connections to the input leads of this 100 probe, ensure that its output lead is grounded. You may do this either by connecting the BNC shell to a 20 grounded measurement instrument, or by connecting the auxiliary grounding terminal to a 10 reliable ground point. Read the next paragraph for 1.0E+05 1.0E+06 1.0E+07 1.0E+08 further advice. 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 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. 9. Overrange indicator The overrange indicator lights up red if the voltage of the input signal exceeds the Use fused test prods if necessary linear operating range of the probe. When this happens, the signal on the probe output may not accurately represent the signal on the probe input. If this probe is intended to use for measurements in circuits of INSTALLATION CATEGORY III, it should incorporate with fused test prods. 10. Test procedure Do not operate without covers a. Connect the BNC output connector to the vertical input of a general-purpose oscilloscope. To avoid electric shock or fire hazard, do not operate this probe with the covers b. Install four AA cells or connect an appropriate mains adaptor to this probe. removed. c. Set the oscilloscope input coupling to DC and 1 V/div. Center the trace on the display. Do not operate in wet or damp conditions d. Connect the sprung hooks of the probe to power lines. To avoid electric shock, do not operate this probe in wet or damp conditions. e. Set the range of the probe to 1/1000. f. A 50 Hz / 60 Hz sine-wave of proper amplitude will be displayed on the screen of the oscilloscope. This means the probe is working properly. Do not operate in explosive atmosphere 11. Cleaning To avoid injury or fire hazard, do not operate this probe in an explosive atmosphere. Use a soft cloth to clean the probe, taking care not to cause damage. Avoid exposed circuitry a. Do not immerse the probe. To avoid injury, remove jewelry such as rings, watches and other metallic objects. b. Do not use abrasive cleaners. Do not touch exposed connections and components when power is present. c. Do not use chemicals contains benzene or similar solvents. 2 Copyright Pico Technology 2008 DO137-1 DO137-1 Copyright Pico Technology 2008 7 Voltage (V rms)