HGST VANCOUVER III 160GB 08K1880 User Manual

Page 3 

 

version 1.0 

Temperature

5 to 55°C

1

Relative humidity 
(noncondensing)

8 to 90%RH

Maximum wet 
bulb temperature 
(noncondensing)

29.4°C

Maximum tem-
perature gradient

15°C/hour

Altitude

–300 to 3048 m

1

The system is responsible for providing 

sufficient air movement to maintain a 
surface temperature below 60°C at the 
center of the top cover of the drive. 

Non operating conditions 

Temperature

–40 to 65°C

Relative humidity 
(noncondensing)

5 to 95%RH

Maximum wet 
bulb temperature 
(noncondensing)

35°C

Altitude 

–300 to 12,000m 

 
Operating shock 
 
The drive meets the following criteria 
while operating in respective condi-
tions described in the list below.  

y

 

No error occurs with a 10 G half-
sine shock pulse of 11 ms duration 
in all models. 

y

 

No data loss occurs with a 30 G 
half-sine shock pulse of 4 ms 
duration in all models. 

y

 

No data loss occurs with a 55 G 
half-sine shock pulse of 2 ms 
duration in all models. 

The shock test consists of ten 
shocks inputs in each axis and in 
each direction for a total of 60. There 
must be a delay between shock 
pulses that is long enough to allow 
the drive to complete all of the ne-
cessary error recovery procedure. 

Nonoperating shock 
The drives will operate with no de-
gradation of performance after being 
subjected to a shock pulses with the 
following characteristics. The tests 
involved trapezoidal and sinusoidal 
shock wave. 

y

 

The approximate shape of the 
pulse is square (trapezoidal). 

y

 

Approximate rise and fall time of 
pulse = 1 ms. 

y

 

Average acceleration level = 
50 G. (Average response curve 
value during the time following 
the 1 ms rise time and before 
the 1 ms fall with a time duration 
of 11 ms) 

y

 

Minimum velocity change 
equals 4.23 m/s.

 

The shape is approximately a half-
sine pulse.  The following table 
shows the maximum acceleration 
level and duration.

 

level (G) 

(ms) 

All models 

75  

11  

 300 

2 

 350 

2 

 

No data loss is incurred with the 
following rotational shocks applied 
around the axis of the actuator pivot: 

y

 

30,000 rad/s

2 

for a duration of 1 ms 

y

 

20,000 rad/s

2

 for a duration of 2 ms 

The upper limit criteria of the octave 
sound power levels are given in Bels 
relative to one pico watt and are 
shown below.  The measurement 
method is in accordance with 
ISO7779. 

3.0

3.4

 

 

Performance 

seek mode

3.4

3.7

Quiet seek 

mode 

3.1 3.5 

2.8

3.2

 

 

Performance 

seek mode

3.4

3.7

Quiet seek 

mode 

2.9 3.3 

2.6

3.0

 

 

Performance 

seek mode

3.4

3.7

Quiet seek 

mode 

2.8 3.2 

 

ATTENTION: The drive 
must be protected 
against electrostatic 
discharge especially 
when being handled.  
The safest way to 

avoid damage is to put the drive in 
an anti-static bag before ESD wrist 
straps are removed. 

Drives must be shipped in approved 
containers.  Severe damage can be 
caused to the drive if the packaging 
does not adequately protect against 
the shock levels induced when a box 
is dropped. Consult your Hitachi 
Global Storage Technologies repre-
sentative if you do not have an 
approved shipping container.