Operation; Settings Table - Greenlee CM-450 Instruction Manual

Operation

1. Set the Selector switch according to the Settings Table. Momentarily press the
SELECT button to select mode.
2. Refer to "Typical Measurements" for specific measurement instructions.
3. Test the unit on a known functioning circuit or component.
• If the unit does not function as expected on a known functioning circuit,
replace the battery.
• If the unit still does not function as expected, call Greenlee for technical
assistance at 800-435-0786.
4. Take the reading from the circuit or component to be tested.

Settings Table

To measure
this value ...
AC Current*
(600 A max.)
Frequency of a
current
(600 A max.)
Voltage
(600 V max.)
Frequency of a
voltage signal
Resistance
Continuity**
Diode
* AC current measurements are made using the jaw.
** Tone indicates continuity. The threshold is between 5 Ω and 120 Ω.
Electric shock hazard:
Contact with live circuits could result in severe injury or
death.
Set the Selector
switch to this
symbol ...
and press Hz
or
and press Hz
and press SELECT
and press SELECT
2 times
This icon
Connect
will appear
red lead
on the
display ...
and A
Hz
and V
and V
Hz
MΩ
Ω
and V
CM-450
Connect
black
lead
to ...
to ...
N/A N/A
N/A N/A
+ COM
+ COM
+ COM
+ COM
+ COM