Continuity Testing; Diode Testing; Logic Testing - Promax PD-181 Manual De Instrucciones

4. The resistance in the tops of test(proof) can diminish the
precision of the lowest scale (200Ω). The mistake is generally from
0,1 to 0,2 Ω for a standard couple of tops of test(proof). Choose
always the as small as possible scale. Cortocircuite the terminals
and observe the showed value and reduce it when it(he,she) does
a measurement.

4.6 Continuity testing

1. Select the (
2. Connect the BLACK and RED test probe tips to the circuit or
device under test, making sure it is de-energized first. An audible
tone will sound if the measured value is low to 100Ω.

4.7 Diode testing

CAUTION
Measurements must only be made with the circuit power OFF.
1. Set the rotary selector switch to the (
2. Follow step 3 as for resistance measurements.
3. The RED lead should be connected to the anode and the BLACK
lead to the cathode. For a silicon diode, the typical forward voltage
should be about 0.6V.

4.8 Logic testing

1. Insert the BLACK and RED test leads into the COM and VΩ
input terminals respectively.
2. Select the logic function by rotating the selector dial to the
LOGIC position.
3. Connect the BLACK probe tip to the Common Bus of the logic
circuit to be measured.
4. Connect the RED probe tip to the point to be tested.
5. With a logic high pulse (1), the indicator will display in the LCD
and a beepng Sound will emit. UIT a logic low pulse (0), the
indicator will appear in the LCD.
10/06
) position by turning the rotary selector switch.
- 12 -
) position.
PD-181