5
Technical data
HOMMEL TESTER 500
Surface roughness parameters: ......................... R a , R z -DIN, R max in accordance
Memory: .............................................................. Max. 125 measurements
Tolerance displays for Ra, Rz, Rmax Cut-off L
Traverse lengths Lt in accordance
with DIN 4777 and ISO 4287: ............................. L t (mm)
Traverse lengths Lm in accordance
with DIN 4777 and ISO 4287: ............................. L m (mm)
Traverse speed v t : .............................................. v t (mm/s)
The cut-offs 0.25 mm and 0.8 mm can be preassigned to every traverse length. A
traverse length may consist of 1, 2, 3, 4 or 5 cut-off lengths (in case of ISO evalua-
tion):
Digital filter: ......................................................... M 1 in accordance with DIN 4777
Measuring range:
Accuracy class: ................................................... Class 1, in accordance with
Minimum display value: ...................................... 0.01 µm
Pick-up position display: .................................... analog measuring bar and
numeric
Units of measurement: ....................................... µm and µinch
Interface: ............................................................. Standard V-24 (RS-232), serial
T500
5 Technical data
with DIN 4777
R a , R z -ISO, R max in accordance
with ISO 4287
R a , R z -JIS in accordance with
Japanese standard JIS B601
: L c (mm)
0.25
c
1.5
1.25
0.15
L m
=1L c =2L c =3L c =4L c =5L c
0,25 0,5
0,75 1,0
1,25
0,8
1,6
2,4
3,2
4,0
2,5
5,0
7,5
10,0 12,5
M B Measuring stroke Resolution
1
+20/–20 µm
+20/–60 µm
2
+40/–40 µm
+40/–120 µm
DIN 4772
value
0.8
2.5
4.8
15.0
4.0
12.5
0.5
1.0
10 nm
20 nm
20 nm
40 nm
35