Technical Features - Ober ERVIT22SA Mode D'emploi

TECHNICAL FEATURES

Table 1
Model Code
ERVIT22SA 8302271
ERVIT33SA 8302272
ERVIT44SA 8302273
ERGOVIT22SA 8302274
ERGOVIT25SA 8302270
ERGOVIT33SA 8302275
ERGOVIT55SA 8302276
ERGOVIT77SA 8302277
Air inlet 1/4 GAS - Ø inside tube min. 8 mm - 1/4" hexagonal connection (6.35 mm)
Note: make sure that the performance features required correspond to those described above, otherwise it will be
necessary to choose a different model from the broad range offered by OBER.
TOOL NOISE
The table of technical specifications indicates the noise level- where the noise level exceeds 85 dB (A) the noise power is
also indicated. Ear protectors must be worn where the noise level exceeds 85 dB (A) at the operator position. We
recommend that you also wear ear protectors below this noise level.
Noise risk and hearing damage are related to the intensity of the noise source and the length of exposure. Noise risk
must be assessed on a case by case basis taking into account these two factors. Measures should be taken to protect
the user against hearing damage in accordance with current Health and Safety regulations.
The formula and table can be used to calculate the daily exposure level for a tool using the use coefficient c. The use
coefficient c for screwdrivers is between 10 and 35%.
Daily exposure
level
TOOL VIBRATION
The table of technical specifications indicates the vibration level for the tool; the vibration level is calculated as the
squared weighted value of the acceleration frequency, Vibration risk is related to the intensity of the vibration source and
the length of exposure. Vibration risk must be assessed an a case by case basis taking into account these two factors.
Measures should be taken to protect the user against vibration injury in accordance with current Health and Safety
Regulations.
The formula and table can be used to calculate the daily exposure level for a tool using the use coefficient c. The use
coefficient c for screwdrivers is between 10 and 35%.
Daily exposure
level
Speed Power Torque
(rpm) (watt) (Nm)
1100 130 3,6
640 130 6,5
360 130 11,5
1800 220 3,5
1000 220 6.3
670 220 8,8
380 220 15,7
210 220 28
L = L + 10 Log T
eq,d eq 10 e
 
t
 
 
a a
8 ,
h h h
 8 
Consumption
(Nl/min.)
420
420
420
680
680
680
680
680
/ T
Te= c T
0
0
T = 8h
0
0 5 ,
a
h
t = c 8h
2,5
Weight Lenght Noise
L Lp
(Kg) (mm) (dB(A))
0,85 145 76,5
0,85 145 76,5
0,85 145 76,5
0,75 125 74,5
0,9 150 74,5
0,9 150 74,5
0,9 150 74,5
0,9 150 74,5
L c
eq
85 10%
20%
35%
c a
h,8h
10% 0,8
20% 1,1
35% 1,5
GB
Vibrations
a
h
2
(m/s )
<2,5
<2,5
<2,5
<2,5
<2,5
<2,5
<2,5
<2,5
L d
eq,
75,0
78,0
80,4
5