Placing The Probe; Particularities When Placing Nfe Micro Probes - KARL DEUTSCH LEPTOSKOP 2042 Instruction Manual

8.5 Placing the probe

In order to exclude systematical and environmental or instrument
caused errors with high probability, we recommend, before starting
and regularly during a measurements series to perform verification
measurements with known coating thickness and known substrates.
Place the ball tip of the probe onto the coating to be measured and hold the
measuring probe as perpendicular as possible to the material surface.
With the straight single pole probe the integrated guide sleeve helps:
Fig. 5: Placing the one-pole probe with the aid of the guiding sleeve
8.5.1

Particularities when placing NFe micro probes

Due to its geometry the micro probe is particularly sensitive to tilting,
i.e. when using the micro probe for measurement you need to ensure
that the probe is kept perpendicular to the substrate.
Thus, in order to gain a high repetitive measurement accuracy we recom-
mend the use of a
Positioning device (e.g. KARL DEUTSCH art. no. 2820.002) or a
Positioning aid (e.g. KARL DEUTSCH art. no. 2998.001 – micro probes 0°,
2998.002 – micro probes 45°, 2998.003 – micro probes 90°),
when measurement is executed by means of the probes
NFe micro probe 2420.201 (straight)
NFe micro probe 2420.202 (angled for 45 º)
NFe micro probe 2420.203 (angled for 90 º)
Instruction Manual LEPTOSKOP 2042
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Art. No. 7423.421