11
10
1. Controls and Functions: (cont.)
Input Jacks
COM
Black test lead connection for
ACV, DCV,
Ω
, Continuity Buzzer
and Diode Test functions.
V/
Ω
Ω
Red test lead connection for all
ACV, DCV,
Ω
, Continuity Buzzer
and Diode Test functions.
D. MEASUREMENT TECHNIQUES
1. Controls and Functions:
Push Buttons
PEAK
Activates the Peak Hold function
(ACA only.)
HOLD
Holds the reading on the display
until the button is pushed a
second time.
Rotary Switch
OFF
Turns the 291 completely off.
V
Used to measure DC volts.
V
Used to measure AC volts.
Ω
Ω
Used to measure resistance and
use the continuity buzzer.
A
Used to measure AC amps.
