TPI 270, Instruction Manual

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1. Controls and Functions: (cont.)
Rotary Switch
OFF Turns the 270 completely off.
V Used to measure DC volts.
V Used to measure AC volts.
W Used to measure resistance.
Used to measure continuity.
Selects diode test function.
Selects capacitance test function.
Hz Selects frequency test function.
m A Selects DC microamp function.
Used to measure AC amperage.
TEMP Selects the temperature function.
Input Jacks
COM Black test lead connection for all
tests except temperature, non-con-
tact voltage and AC Amps.
V/ W / m A Red test lead connection for all
tests except temperature, non-con-
tact voltage and AC Amps.
D. MEASUREMENT TECHNIQUES
1. Controls and Functions:
Push Buttons
REL Activates Relative mode. Press
and hold for 2 seconds to deacti-
vate.
D-H Holds the reading on the display
until the button is pushed a
second time.
R-H Activates manual ranging. Press
and hold for 2 seconds to return
to auto ranging.
MAX MIN
Activates record mode. Press to
cycle between maximum and min-
imum recorded reading. Press and
hold for 2 seconds to return to
normal mode.
P-H Activates peak hold mode. Used to
capture in-rush current.
NCV Activates the non-contact voltage
detection feature. Press and hold
while holding the jaw close to
electrical wires.