Technical Features; Use - Ober ERVIT11D Instrucciones De Uso

TECHNICAL FEATURES

Table 1
Model
ERVIT11D 8301061
ERVIT22D 8301062
8301209
ERVIT33D
ERVIT44D 8301210
ERGOVIT22D 8301218
ERGOVIT33D 8301219
8301211
ERGOVIT55D
ERGOVIT77D 8301212
Air inlet 1/4 GAS - Ø inside tube min. ERVIT 6 mm; ERGOVIT 8 mm - 1/4" hexagonal connection (6.35 mm)
Noise emission levels determined by using ISO/CD 15744
Levels of vibrations at the handle determined by using ISO 8662
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 a screwdriver is between 10 and 35%.
Dally 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 a screwdriver is between 10 and 35%.
Daily exposure
level
Code Speed Power
(rpm) (watt)
130
2250
900 130
500 130
300 130
1900 220
750 220
420 220
310 220
L = L + 10 Log
eq,d eq

t
 

a a
8 ,
h h h
 8
Torque Consumption Weight
(Nm) (Nl/min.)
1,2
260
3 260
5,4 260
9,6 260
3 430
7.5 430
13,5 430
24 430
T / T
Te= c T
10 e 0
T = 8h
0
0 5 ,


t = c 8h

Clutch gr.
(Kg)
0.85
7311141
0.95 7311142
0.95 7311142
0.95 7311143
0.88 7311143
1.06 7311143
1.06 7311143
1.15 7311144
L c
eq
85 10%
0
20%
35%
a c
h
2.5 10%
20%
35%
GB
Noise Vibrations
Lp a
h
2
(dB(A)) (m/s )
76,2
< 1
76,2 < 1
76,2 < 1
76,2 < 1
80,0 < 1
80,0 < 1
80,0 < 1
80,0 < 1
1 2
L d
eq.
75.0
78.0
80.4
a
h.8h
0.8
1.1
1.5