User manual VICTOR VC99 7 DMM

[. . . ] Please read the following before operation. 1-1. Check the connection and insulation of test leads to avoid electric shock. 1-2. Do not input a limited voltage higher than DC 1000V or AC 750V when measuring ranges. 1-3. When measuring voltage higher than DC 60V, AC 40V, please be careful. [. . . ] 2. Function key: 2-1. HOLD keypress it, the presently measured value is held on LCD and HOLD symbol displays. Press it again, HOLD symbol disappears, and the meter is exited the holding mode. REL key press it reading clear into relative value measurement states turn "REL"symbol displays, Press it again, "REL" symbol disappears, and the meter is exited the relative mode. VALUE 400 ±(0. 8%+4) 400 ±(1. 5%+15) 750 ±(0. 8%+5) 750 ±(1. 5%+15) RESOLUTION 1 TESTING CONDITION Forward DCA is approx. 0. 5mA, the backward voltage is approx 1. 5V Open circuit voltage is approx. VoltageCurrentresistancefrequency and GND COM. See picture 1 4-2. DCV measuring 1. Select the knob to range. 600mA) or to "20A"(the Max. 20A); 2. Select the knob to a proper DCA range, press "DC/AC" key to select the measurement mode, then connect the leads crossly to the electric circuit under test; LCD displays polarity and current under test connected by the red test lead. Firstly users should select the knob to the highest range, if users had no idea about the range of current under test, and then select the proper range based on displaying value . If the LCD displays "OL" means the current is over range. Now you need to select the it knob to the higher. 2. Insert the black test lead to "COM" terminal and the red one to "V//Hz" terminal. 3. Auto range is the original states, it will display "AUTO" symbolpress "RANGE" key change to manual range mode600mV6V60V600V1000V range is selective; 4. Connect the leads crossly to the electric circuit under test; LCD displays polarity and voltage under test connected by the red test lead. Firstly users should select the knob to the highest range, if users had no idea about the range of voltage under test, and then select the proper range based on displaying value. If LCD displays "OL", it means meter is over the max. Value of this range, thus should select the knob to a higher range. Do not input a voltage over DC 1000V. 3. Max. input current is 600mA or 20Asubject to where the red test lead insert to, too large current will damage the fuse. 4-5. ACA measuring 1. Insert the black test lead to "COM" terminal and the red one to "mA" terminal (the Max. 600mA) or to "20A"(the Max. 20A); 2. Select the knob to a proper ACA range, press "DC/AC" key to select the measurement mode , and connect the leads crossly to the electric circuit under test. Note 1 Firstly users should select the knob to the highest range, if users had no idea about the range of current under test, and then select the proper range based on displaying value . 2. If the LCD displays "OL"it means the current is over range. [. . . ] Wipe the case with a damp cloth and detergent; do not use abrasives and alcohol. If do not operate for a long time, should take out the battery to avoid leakage. When" " symbol displays, should replace the battery following the steps: reason of special usage. E-VC99/V1. 0 9-1. 9-2. Unlock the button and remove the battery case; 9-3. [. . . ]