CM-1360 • CM-1560 • CMH-1000 • CMI-1000
7
Using the Features
All Models
•
Intelligent Auto Power Off (APO):
The meter automatically turns off after approximately 32 minutes
of inactivity to extend battery life. Active meter function is specified as: selector switch is rotated or
pushbuttons are pressed; readings above 8.5% of the range; non-OL readings for resistance, continuity,
or diode function; non-zero readings for Hz function; phase rotation segment moving. To wake up the
meter from APO, press the
SELECT
button momentarily and release or turn the rotary switch
OFF
and
then back on. Always turn the rotary switch to the
OFF
position when the meter is not in use.
•
:
Press the
button momentarily to toggle the LCD backlight. The backlight automatically
turns off after 32 seconds to extend battery life.
•
:
Press the
button momentarily to toggle the flashlight. The flashlight automatically turns off
after 32 seconds to extend battery life.
•
CREST:
Press for 1 second to activate. LCD will indicate when mode is active. This mode will
capture current or voltage peaks in duration of as small as 5 ms. Press
CREST
to toggle between MIN
and MAX. Add 250 digits to accuracy for changes > 5 ms.
•
HOLD:
Press momentarily to hold the present value on the display. Press again to exit this mode.
•
REC:
Press momentarily to activate MAX/MIN/AVG recording mode.
and “MAX MIN AVG” appear
on the display. The meter beeps when new maximum or minimum reading is updated. The average
reading is calculated over time. Press the button momentarily to read the MAX, MIN, and AVG readings
in sequence. Press the button for 1 second to exit MAX/MIN/AVG recording mode. APO is disabled
automatically in this mode.
•
SELECT:
Press momentarily to toggle between functions, measurement modes, or display modes. The
last used setting becomes the default when that function is selected again. To change the default, select
a new setting. The setting will be stored in nonvolatile memory.
•
Δ:
Press the
Δ
button for 1 second to toggle between zero and normal mode. In zero mode the value
on the LCD when the button is pressed becomes the offset. As the input value changes, the offset is
subtracted from the actual value. This modified value is shown on the LCD.
Note:
Δ
operation when DCA or DC + ACA functions are selected offsets any magnetic hysteresis in the
jaw. If DCA or DC + ACA reading before measuring is not zero, press the
Δ
button for 1 second. The LCD
will display “dc_0”. When this clears, the meter is ready for operation. When measuring more than 5 A,
this mode is disabled. As an indication, the meter will beep three times.
CM-1560, CMH-1000, and CMI-1000 Only
•
PEAK-RMS:
Press the
PEAK-RMS
button for 1 second to activate PEAK-RMS mode to capture inrush
current or voltage in duration as short as 80 ms.
appears on the display. Press the button for
1 second to exit PEAK-RMS mode. APO is disabled automatically in this mode.
CMH-1000 and CMI-1000 Only
•
and
: If desired, press and hold the
REC
button while turning the meter ON to enable the Beeper
feature. If the segments indicate a clockwise movement, the beeper sounds a single long beep per
segment cycle. If the segments indicate a counterclockwise movement, the beeper sounds three short
beeps per segment cycle.
•
: Ensure the motor is electrically isolated from its power source. Press the
SELECT
button
momentarily to select Motor function. Connect the meter to the motor as described in the “Settings
Table” section of this manual. From the perspective of looking down the shaft of the motor, spin it
clockwise. If the meter indicates a clockwise movement, the motor leads connected to L1, L2, and
L3 of the meter are T1, T2, and T3, respectively. If the meter indicates a counterclockwise move-
ment, swap any two connects between the meter and motor. Then retest.
•
: Press the
SELECT
button momentarily to select Phase function. Connect the meter to the
phases as described in the “Settings Table” section of this manual. If the meter indicates a
clockwise movement, the phases connected to L1, L2, and L3 of the meter are L1, L2, and L3,
respectively. If the meter indicates a counterclockwise movement, swap any two connects between
the meter and phases. Then retest.
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