Test Products International 291 - Manual (Page 11)

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.