Test Products International 293 - Manual (Page 14)

15 14
2. Step by Step Procedures:
a. Measuring DC Volts
WARNING!
Do not attempt to make a voltage measurement of
more than 600V or of a voltage level that is unknown.
Instrument set-up:
FUNC. BLACK RED MIN MAXI
TEST LEAD TEST LEAD READING READING
V COM V/ Ω 0.01V 600V
Measurement Procedure:
1. Disconnect power to circuit to be measured.
2. Plug black test lead into the COM input jack.
3 Plug red test lead into the V/ Ω Ω input jack.
4. Set rotary switch to the V range.
5. Push FUNC button so AC does not show on LCD.
6. Connect test leads to circuit to be measured.
7. Reconnect power to circuit to be measured.
8. Read the voltage on the 293.
Optional Modes
•
TRIM: Push TRIM button to stabilize
reading.
• HOLD: Freezes the reading on the LCD.
• RANGE: Manually ranges the instrument.
Application Notes
When measuring DC Voltage of a bat-
tery, the most accurate reading can be
attained by testing the battery under
load. To accomplish this, follow steps
1 through 4 shown on page 15 and
the following (with the battery in
holder and device turned on):
• Connect the red test lead from the
meter to the positive (+) terminal
of the battery.
• Connect the black test lead to the
negative (-) terminal of the battery.
• Reconnect power to the circuit and
read the voltage on the 293.
!