Elcometer 456 3 Operating Instructions Manual page 50

R
17.4 SEPARATE DUAL FNF
Minimum
Probe type convex surface
diameter
FNF1 (N) 38 mm (1.50")
FNF1 (F) 4 mm (0.16")
FNF1 Right Angle 38 mm (1.50")
(N)
FNF1 Right Angle 4 mm (0.16")
(F)
a. This is the recommended maximum calibration foil value to achieve the specified accuracy under these measurement
conditions
48
Minimum
concave Headroom
surface radius
25 mm (0.98") 88 mm (3.46") 8 mm (0.32")
25 mm (0.98") 88 mm (3.46") 4 mm (0.16")
25 mm (0.98") 34 mm (1.34") 8 mm (0.32")
25 mm (0.98") 34 mm (1.34") 4 mm (0.16")
Minimum
sample
Cal foil value
diameter
250 µm (10 mil)
250 µm (10 mil)
250 µm (10 mil)
250 µm (10 mil)
a