Global Specialties PRO-1000 - Manual User Manual

Page 12

3. OPERATION

3-1 Voltage Measurement
Voltage is the difference of electrical energy (potential) between two points. Measuring voltage allows
you to verify the following.

 Presence of voltage. The presence of voltage indicates that the circuit is delivering voltage to the

component you are testing.

 The voltage level. The voltage level indicates whether the proper voltage is arriving at each

component.

 The voltage drop. The voltage drop indicates how much voltage is being consumed by each

component.

WARNING---HIGH VOLTAGE

TO AVOID POSSIBLE ELECTRIC SHOCK AND/OR EQUIPMENT DAMAGE, DO NOT ATTEMPT
TO TAKE ANY VOLTAGE MEASUREMENTS IF THE VOLTAGE IS ABOVE 1000V DC OR 750V
AC. THE "COM" TERMINAL POTENTIAL SHOULD NOT EXCEED 500V WITH RELATION TO
GROUND.

(1) Plug the red and the black test leads into the V and the COM input terminals respectively.
(2) Set the range switch to the desired voltage range. For unknown voltages, always start from
highest range and move down to a lower range to the select scale for the best readings.
(3) Connect the probe tips in parallel with the voltage source to be measured.
(4) Read the voltage value on the display.

3-2 Current Measurement
Current is defined as amount of electrons flowing through a conductor. Amps are the value assigned
to the measurement of these electrons.

CAUTION

DO NOT ATTEMPT TO TAKE A CURRENT MEASUREMENT MORE THAN THE SPECIFIED
METER SETTING. ALWAYS START WITH THE HIGHEST RANGE CURRENTS SETTING AND
MOVE DOWN A RANGE AT A TIME FOR THE BEST READINGS. THE

“mA INPUT” TERMINAL IS

PROTECTED BY A 2000mA/250V

“F” TYPE FUSE AND THE “A INPUT” TERMINAL IS FUSED

WITH A 10A/250V

“T” TYPE FUSE.

WARNING

MAKE SURE NO POWER IS PRESENT BEFORE DISCONNECTING THE CIRCUIT. EVEN SMALL
AMOUNTS OF CURRENT CAN BE DANGEROUS. DO NOT ATTEMPT A CURRENT
MEASUREMENT WHERE VOLTAGE IS ABOVE 600 V.

(1) Plug the red test leads into the

“mA input” for inputs less than 2000 mA or into the “A input”

terminal for inputs between 2000mA and 10A.
(2) Plug the black test leads into the COM input terminal.