6 380973 Ver. 1.01 8 /99
5.11 Diode Measurements
Warning:
Before attempting any in-circuit measurements remove power from the circuit
under test and discharge any capacitors.
1. Set the Rotary Selector switch to the diode/continuity function (diode symbol).
2. Connect the black test lead to the COM terminal and red test lead to the V/
Ω
/uF
terminal.
3. Connect the red test lead to the anode side of the diode, and the black test lead to the
cathode side of the diode under test.
4. Read the forward voltage value on the LCD.
5. If the test leads are connected in reverse of step 3 above, the meter should read open
circuit voltage if the diode is in working condition.
5.12 Peak Hold / Data Hold Modes
1. Peak Hold allows the meter to capture fast voltage or current peaks.
2. Data Hold freezes the reading on the display when the Data Hold key is pressed.
3. Set the Rotary Selector switch to the AC Voltage or Current function position for Peak
Hold measurements. For Data Hold, set the switch to any function position.
4. Set the clamp meter to the Peak Hold or Data Hold mode by pressing the Peak Hold or
Data Hold key once.
5. The display will now indicate “P” for Peak Hold or ‘H’ for Data Hold.
6. For Peak Hold, the display will show the maximum peak of a measured signal surge. For
example, in-rush current during a motor start-up can be easily detected using Peak Hold
mode. For Data Hold, the LCD reading is frozen.
7. To return to normal operation press the Peak or Data Hold key again.
6. MAINTENANCE
6.1 Battery Replacement
Warning:
To prevent electrical shock or hazard, remove power to the meter and remove
the test leads before removing back cover.
1. The meter displays ‘BT’ when the battery voltage falls critically low. Replace battery as
soon as possible when this icon appears on the meter LCD.
2. Set the rotary switch to the OFF position and remove all test leads.
3. Unscrew the three back cover screws to access the battery compartment. Note that the
screw nearest the meter jaw is a shorter machined screw. Be sure to install the same
screws in the same screw holes after replacing battery.
4. Replace battery and reinstall back cover.
6.2 Cleaning
Warning:
To avoid electrical shock or damage to the meter, do not allow water or other
liquids to enter the meter case. Remember to remove power and test leads before
opening meter case.
Periodically wipe the case with a damp cloth and mild detergent. Do not use abrasives or
solvents.
