ACCURA Installation site requirements
12
Environmental conditions
The operator must ensure that the required environmental conditions are maintained in the measuring lab and docu-
ment them during the entire operating time (measuring operations, idle times and downtimes).
NOTE
The environmental conditions must be maintained to ensure that the accuracy specifications are
met. These include:
Avoid direct heat (e.g. controller cabinets of machine tools, heaters, lighting, sun).
The flow of air must ensure that any heat emitted from existing heat sources (e.g. electronic de-
vices or operators) is never directed towards the CMM.
Avoid cold air and drafts (e.g. outside walls, windows, doors).
Additional information can be found in VDI/VDE 2627.
Environmental conditions for operational readiness
The following conditions must be met to ensure proper operation of the coordinate measuring machine.
Relative humidity (without condensation)
Note:
Humidity values that exceed the permissible range require an additional air conditioner on the con-
troller cabinet.
40-70%
Ambient temperature
10-35°C
Height above mean sea level:
100-125 V
3000 m
220-240 V
2000 m
Sound pressure level at the installation site
<90 dBA
Sound pressure level on the probe
Discrete frequencies (50-2000 Hz)
75 dBA
Mixed frequencies (50-2000 Hz)
80 dBA
Environmental conditions for measuring operations
To comply with the accuracy values, the following measures must be implemented:
–
Enter the expansion coefficients of the workpiece in the measuring software.
–
Comply with the temperature conditions. See table.
Note:
Maintain the reference temperature for at least 48 hours before starting the measurements.
Measuring ranges:
16/24/15 to 20/42/15
Reference temperature selectable from
18-22°C
Temperature fluctuation
per day (K/d)
2.0
per hour (K/h)
1.0
spatial (K/m)
1.0
NOTE
If the reference temperature is not maintained, the accuracy values listed in the specifications are
not guaranteed.
Please see the separate specifications brochure for information about permissible temperature varia-
tions.
