1716
e. MEASURING RESISTANCE
WARNING!
Do not attempt to make resistance measurements with
circuit energized. For best results, remove the resistor
completely from the circuit before attempting to
measure it.
NOTE:
To make accurate low ohm measurements, short the
ends of the test leads together and press the REL
pushbutton. This value will automatically be deducted
from your reading.
Instrument set-up:
FUNCTION BLACK RED MINIMUM MAXIMUM
TEST LEAD TEST LEAD READING READING
W COM VWHz 0.1W 40.00MW
Measurement Procedure:
1. Disconnect power to the circuit to be measured.
2. Plug the black test lead into the COM input jack.
3. Plug the red test lead into the V
W
Hz input jack.
4. Set the rotary switch on the EEDM504D to the W
function.
5. Connect the test leads to the circuit to be measured.
6. Read the resistance value on the EEDM504D.
Optional Functions:
d. MEASURING AC AMPS
CAUTION!
Do not attempt to make a current measurement
with the test leads connected in parallel with the
circuit to be tested. Test leads must be connected
in series with the circuit.
W
ARNING!
Do not attempt to make a current measurement of
circuits with more than 600V present. Instrument
damage and /or personal injury may result.
Instrument set-up:
FUNCTION BLACK RED MINIMUM MAXIMUM
TEST LEAD TEST LEAD READING READING
µA COM µAmA 0.1µA 4000µA
mA COM µAmA 0.01mA 400mA
10A COM A 0.001A 10.00A
Measurement Procedure:
1. Disconnect power to the circuit to be measured.
2. Plug the black test lead into the COM input jack.
3. Plug the red test lead into the µAmA or A input jack
depending on the value of current to be measured..
4. Set the rotary switch to the µA, mA or A function.
5. Press the AC/DC pushbutton to set to AC mode.
6. Connect test leads in series to circuit to be measured.
7. Reconnect power to the circuit to be measured.
8. Read the current on the EEDM504D.
Optional Functions:
RANGE
REC
REL
HOLD
Manually select the appropriate range.
Activate MIN/MAX record mode (page 22).
Scroll between Hz, Duty, and Volts.
Activate REL mode (page 22).
Freeze the reading on the LCD.
Hz/DUTY
RANGE
REC
REL
HOLD
Manually select the appropriate range.
Activate MIN/MAX record mode (page 22).
Activate REL mode (page 22).
Freeze the reading on the LCD.