Dc Voltage Measurement; Ac Voltage Measurement; Dc Measurements - USAG 075 F Manual De Instrucciones

DC voltage measurements
• Position the rotary switch in the V position, by selecting, always in the manual
measurement mode, the highest capacity, in the event that the voltage value
to be measured is unknown.
• Connect the black lead to the "COM" bushing.
• Connect the red lead to the "INPUT" bushing.
• Press the "FUNC" push-button to select V DC.
• Press the "RANGE" push-button to select the auto-range or manual
measurement mode
• Take the measurement according to the diagram in figure page 69
Note: a) if the "OL" message appears on the display, the value being measured is
greater than the maximum expected capacity.
b) The " – " sign indicates the negative polarity of the signal with respect
to the position of insertion of the leads.
c) With the switch positioned on low capacities and with leads connected
to the instrument, any values other than 0 may appear on the display.
This is due to the considerable input impedance of the instrument,
which, together with non-anchored conductors, picks up disturb signals
in the room. This phenomenon disappears when the leads touch the
circuit, without affecting the measurement value.
N.B.: do not take measurements above 600V DC
Alternating current measurements (AC)
• Position the rotary switch in the V position, by selecting, always in the manual
measurement mode, the highest capacity, in the event that the voltage value
to be measured is unknown.
• Connect the black lead to the "COM" bushing.
• Connect the red lead to the "INPUT" bushing.
• Press the "FUNC" push-button to select V AC.
• Press the "RANGE" push-button to select the auto-range or manual
measurement mode.
• Take the measurement according to the diagram in figure page 70.
Note: a) if the "OL" message appears on the display, the value being measured is
greater than the maximum expected capacity.
b) With the switch positioned on low capacities and with leads connected
to the instrument, any values other than 0 may appear on the display.
This is due to the considerable input impedance of the instrument,
which, together with non-anchored conductors, picks up disturb signals
in the room. This phenomenon disappears when the leads touch the
circuit, without affecting the measurement value.
N.B.: do not take measurements above 600V AC RMS
Direct current measurements (DC) max. 10A
• Position the rotary switch in the A position, by selecting, always in the manual
measurement mode, the highest capacity, in the event that the current value
to be measured is unknown.
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