mV
mV
)LJXUH'&0LOOLYROWDJH0HDVXUHPHQW
C. Measuring DC Millivoltage
Warning
To avoid harms to you or damages to the Meter
from electric shock, please do not attempt to
measure voltages higher than 400mV, although
readings may be obtained.
7RPHDVXUH'&0LOOLYROWDJH0HDVXUHPHQWVHWXSWKH
0HWHUDV)LJXUHDQGGRWKHIROORZLQJ
,QVHUWWKHUHGWHVWOHDGLQWRWKH
V
WHUPLQDODQGWKH
EODFNWHVWOHDGLQWRWKH
COM
WHUPLQDO
6HWWKHURWDU\VZLWFKWR
3UHVVWKH
SELECT
EXWWRQF\FOHVDPRQJIUHTXHQF\DQGGXW\
F\FOH
&RQQHFWWKHWHVWOHDGVDFURVVZLWKWKHREMHFWEHLQJ
PHDVXUHG
7KHPHDVXUHGYDOXHVKRZVRQWKHGLVSOD\
,WGLVSOD\VWKH506
:KHQPHDVXULQJ'&0LOOLYROWDJHWKH0HWHUDFWV
DURXQGD*
Ω
LQSXWLPSHGDQFHLQSDUDOOHOZLWK
WKHFLUFXLW
6SHFLDOFDUHVKRXOGEHWDNHQZKHQPHDVXULQJKLJK
YROWDJH
:KHQYROWDJHPHDVXUHPHQWKDVEHHQFRPSOHWHG
GLVFRQQHFWWKHFRQQHFWLRQEHWZHHQWKHWHVWLQJOHDGV
DQGWKHFLUFXLWXQGHUWHVWDQGUHPRYHWHVWLQJOHDGV
DZD\IURPWKHLQSXWWHUPLQDOVRIWKH0HWHU
z
z
z
Note
Model DM-442B: OPERATING MANUAL
www.calcert.com
1.800.544.2843
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