Iek Master MAS830L TMD-3L-830 3669447 [18/22] Страница 18

Содержание

Upon completion the work set the rotary switch in the OFF position A ATTENTION If the measured resistance is found in the circuit before the measurements turn the power off and discharge all the containers in the circuit Note If the measured resistance value is greater than the maximum value of the selected measure limit the display will show the digit 1 in the higher order Check of circuit continuity sound continuity test Insert the connector of black test probe in COM jack and insert the connector of red test the probe into VtlmA jack Turn the rotary switch to position Connect the test probes to two points of the circuit to be checked If the resistance is less than 1 5 kOhm you hear a sound signal Upon completion the work set the rotary switch in the OFF position Diode check Insert the connector of black test probe in COM jack and insert the connector of red test the probe into VOmA jack The polarity of the red probe is considered positive Set the function switch to M position Connect the red probe to the anode of the diode and the black probe to the cathode Read on the display the approx forward voltage drop of the diode when the flow of direct current through it If the polarity of the diode is reversed then the display will show the digit 1 in the left order Upon completion the work set the rotary switch in the OFF position Transistor test Set the switch in hFE position Determine the type of transistor as NPN or PNP and determine the outlets of emitter base and collector Correctly insert the transistor connector into the corresponding jacks on the front panel E emitter B base C collector of the transistor On the display read the approximate hFE value at the current of the base of 10 pA and Vee voltage of 3 V Upon completion the work set the rotary switch in the OFF position NOTE Before the transistor testing remove the probes from the multimeter jacks 18

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