RC100

User's Guide R/C SMD Tweezers Model RC100 Introduction Congratulations on your purchase of the Extech RC100 SMD Tweezers. This device offers rapid and accurate capacitance and resistance measurements of chip components. This meter is shipped fully tested and calibrated and, with proper use, will provide years of reliable service. Precautions and Safety measures When using this meter, the user must observe all normal safety rules • Allow a 30 seconds warm-up before use. • If the meter is used near noise generating equipment the display may become unstable or indicate large errors. • Do not use the meter if it appears damaged. • Use the meter only as specified in this manual; otherwise, the protection provided by the meter may be impaired. • Do not operate the meter near explosive gas, vapor, or dust. • To avoid damages to the instrument, do not exceed the maximum limits of the input values. • Caution: Don't use this device if working voltage is above 50V DC or 36 V AC rms. Such voltages pose a shock hazard and damage the meter • When using this meter, keep your fingers away from the metal of the meter. • Before changing functions, disconnect the test clip from the circuit under test. • symbol Replace the battery when the appears. With a low battery, the meter might produce false readings. Symbols: Symbols used in this manual and on the meter: Caution: refer to the instruction manual. Incorrect use may result in damage to the device or its components. Conforms to IEC1010 Product Description 1 2 3 4 5 6 Cathode “-“ input (negative) Anode “+” input (positive) POWER and MODE key This key is used to power the meter and to select the measurement function. Press the key for >4 seconds to turn power off. REL key Press this key once to enter into the Relative mode, press again to return to the normal mode. LCD display Battery cover (on rear) LCD Display Operation Resistance To avoid electrical shock or damage to the meter, disconnect circuit power and discharge all high-voltage capacitors before measuring resistance. 1. 2. Press the MODE key to select the mode. Connect the test tips to the object being tested and read the measured value on the display. a. When measuring the high-resistance (> 1MΩ), it may take a few seconds for the reading to stabilize, this is normal. b. When the input is not connected, i.e. an open circuit, the "OL" (overange) icon will be displayed. NOTE: Capacitance To avoid electrical shock or damages to the meter under test, disconnect circuit power and discharge all high-voltage capacitors before measuring capacitance. 1. 2. Press the MODE key to select the mode. Connect the test clips to the capacitor being tested and read measured value on the display. a. When measuring large valued capacitors (200uF range), it may take up to 30 seconds for the reading to stabilize, this is normal. b. To improve the accuracy of measurements less than 4nF, subtract the residual capacitance of the meter and tips by pressing the REL key with the tips open circuited. NOTE: Diode measurement To avoid electrical shock or damage to the meter, disconnect circuit power and discharge all high-voltage capacitors before testing diodes. 1. 2. 3. Press the MODE key to select the mode. Connect the + tip to the anode and the - tip to the cathode of the diode under test. The meter will show the approx. forward voltage of the diode. If the lead connection is reversed "OL" displayed. Specifications General specifications MAX. Voltage Sample Rate: Display Over Range Low battery Auto power off Power source Altitude Operating temp Operating RH Storage temp Storage RH 50V MAX between terminals and earth ground 3 times/sec for digital data 4000 count (3 3/4 digits) LCD display "OL" indication indication 15 minutes if there are no key presses (2) AG13 button cell or equivalent < 2000 m 32 to 104°F (0~40 °C)