TESTO 830-T4 Mode D'emploi page 15

11.3 Measurement spot, Distance
A specific spot is determined depending on the distance from the
measuring instrument to the object being measured.
Measurement optics (Ratio Distance : Measurement spot)
testo 830-T4
Ø 16 mm
12. Information on contact measurement
Observe minimum penetration depth in immersion/penetration
probes: 10 x probe diameter
Avoid applications in corrosive acids or bases.
Do not use spring-loaded surface probes on sharp edges.
Ø 36 mm
Ø 24 mm
Ø 18 mm
500 mm
700 mm
1000 mm
1500 mm
Ø 68 mm
Laser
Laser
2000 mm
15
Ø 100 mm