Radio Shack 22-812A, Руководство пользователя, Страница: 9 / 24

MASTER BKGRD 6-26-07
MASTER BKGRD 6-26-07
MASTER BKGRD 6-26-07
Basic Operation and Features
For the most accurate reading, the temperature should be between 65º and 83ºF
(18º and 28ºC), with a maximum of 75% relative humidity.
Testing the Display
To test the meter’s display, turn off the meter, then hold down HOLD while turning
on the meter. The meter turns on and all segments on the display appear. Release
HOLD to end the test.
Using the Stand
You can fold out the stand on the back of the meter to place it upright on a flat
surface for easier �iewing.
Connecting Test Leads
Remo�e the plastic plugs before using your test leads.
Slide up the guard on the front of the meter if necessary. plug the black test lead’s
right-angled end into
–COM
(common), then plug the red test lead’s right-angled
end into
+V.
Ω.
mA
. if you want to measure current higher than 400mA, plug the red
test lead’s right-angled end into
+10A MAX
instead of
+V.
Ω.
mA.
WARNING:
• Although the test leads are rated for 1000 �olts, the ma�imum rating of this meter is
1000 volts DC/750 volts RMS AC. Do not try to measure voltage greater than 1000
volts DC/750 volts RMS AC.
• The meter sounds a warning tone when you set it to measure anything e�cept current
and you connect a test lead to +10A MAX . This reminds you not to touch the circuit
with the test leads.
Using Power Lock
Your meter automatically turns off about 30 minutes when left unattended. press
any button to turn the meter back on. Follow these steps to set the meter so it
does not turn off automatically.
1. Turn off your meter.
2. hold down
HOLD and SELECT simultaneously, then turn on the meter. pLoc
appears until you release both buttons.
To reacti�ate the meter’s auto power off function, turn off the meter then turn it
back on.