RND lab 355-00011, Руководство пользователя

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MODE button
To select AC or DC measurement when in Voltages, Amps,
HOLD /BLCTR button
HOLD/BLCTR key is the reading hold/backlight control key that acts with trigger . The func-
tion is to hold the display of reading/backlight control . To press the key ,the display value
will be locked and keep unchanged .To press the key again, the locked status will be erased
and enter the normal measurement status. When press and hold the key over 2 seconds,
the backlight will be on. In the backlight on status,press the key over 2 seconds , the back-
light will be off.
RANGE button
When the meter is fi rst turned on, it automatically goes into AutoRanging. This automatically
selects the best range for the measurements being made and is generally the best mode for
most measurements. For measurement situations requiring that a range be manually select-
ed, perform the following:
1. Press the RANGE button. The “Auto Range” display indicator will turn off, The
“Manual Range” display indicator will turn on
2. Press the RANGE button to step through the available ranges until you select the
range you want.
3. Press and hold the RANGE button for 2 seconds to exit the ManualRanging mode
and return to AutoRanging.
REL button
Rel Key is the relative value measurement key that acts with trigger. Except Hz/Duty, Diode
and continuity,other functions can do the relative value measurement.
HZ/Duty button
HZ/Duty is the Frequency/Duty Cycel select key that acts with trigger. IN frequency meas-
urement mode, press the key can select frequency or duty cycel measurement mode; inAC/
DC Voltage or AC/DC Current mode,press the key can proceed to Voltage/Frequency/Duty
Cycel or Current/Frenquency/Duty cycel measurement mode select.
HZ/Duty button
DC/DC VOLTAGE MEASUREMENT
1. Sert the black test lead into the negative COM terminal and the red test lead into the
positive V terminal.
2. Set the function switch to the VAC or VDC position.
3. Use the MODE button to select AC or DC Voltage
4. Connect the test leads in parallel to the circuit under test.
5. Read the voltage measurement on the LCD display
DC CURRENT MEASUREMENT
1. Insert the black test lead banana plug into the negative (COM) jack.
2. For current measurements up to 4000uA DC, set the
function switch to the uA position and insert the red test lead banana plug into
the (uA) jack.
3. For current measurements up to 400mA DC, set the
function switch to the mA range and insert the red test lead banana plug into the
(mA) jack.
4. For current measurements up to 10A DC, set the function switch to the A position
and insert the red test lead banana plug into the 10A jack.
5. Press the AC/DC button until “DC” appears in the display.
6. Remove power from the circuit under test, then open up the circuit at the point
where you wish to measure current.
7. Touch the black test probe tip to the negative side of the circuit. Touch the red test
probe tip to the positive side of the circuit.
8. Apply power to the circuit.
9. Read the current in the display. The display will indicate the proper decimal point,
value and symbol.
AC CURRENT MEASUREMENT
1. Insert the black test lead plug into the negative (COM) socket.
2. For current measurements up to 10A, set the function switch to the A position and
insert the red test lead plug into the (10A) jack.
3. For current measurements up to 400mA, set the function switch to the mA range
and insert the red test lead banana plug into the (mA) jack.
4. For current measurements up to 10A AC, set the function switch to the A position
and insert the red test lead banana plug into the 10A jack.
5. Press the MODE button. The measurement mode will change between AC or DC
as required.
6. Remove power from the circuit under test, then open up the circuit at the point
where you wish to measure current.
7. Touch the black test probe tip to the negative side of the circuit. And touch the red
test probe tip to the positive side of the circuit.
8. Apply power to the circuit.
9. Read the current in the display. The display will indicate the proper decimal point,
value and symbol.