7
en
Emission values for sound
(Two-figure – specifications as per ISO 4871)
Extension cable.
If the use of an extension cord
is required, its length and con-
ductor cross-section must be adequate for the
application in order to prevent a voltage drop
in the extension cord, power loss and over-
heating of the power tool.
Otherwise, the
extension cable and power tool are prone to
electrical danger, and the working efficiency is
decreased.
Sound emission
JMU 137 QW (**)
JMU 137 MQW (**)
JMU 137-2 QW (**)
A-weighted emission
pressure power level mea-
sured at the workplace
L
pA
(re 20 μPa), in deci-
bels
86.7
86.7
85.6
Measuring uncertainty
K
pA
, in decibels
3
3
3
Measured A-weighted
sound power level
L
wA
(re 1 pW), in decibels
97.7
97.7
96.6
Measuring uncertainty
K
wA
, in decibels
3
3
3
C-weighted peak sound
pressure level measured at
the workplace
L
pCpeak
, in
decibels
101.2
101.2
98.9
Measuring uncertainty
K
pCpeak
, in decibels
3
3
3
Mean vibrational value
(core drilling)
–
m/s
2
–
ft/s
2
< 2.5
8.3
< 2.5
8.3
< 2.5
8.3
Measuring uncertainty
K,
in
–
m/s
2
–
ft/s
2
1.5
4.9
1.5
4.9
1.5
4.9
REMARK: The sum of the measured emission value and respective measuring inaccuracy
represents the upper limit of the values that can occur during measuring.
Wear hearing protection!
Measured values determined in accordance with the corresponding product standard.
WARNING
OBJ_BUCH-0000000261-003.book Page 7 Thursday, January 11, 2018 5:30 PM
