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The NEW range of ferrous and non-ferrous MINIATURE probes from Elcometer are ideal for taking measurements in hard to reach places or on small surface areas, which are not easily accessible using the normal Standard, Right Angle and Telescopic probes, simply because they are too large.
Ferrous and non-ferrous miniature probes are available with a measuring range of 0 - 500µm (0-20mils/thou) and two probe lengths options, 45mm or 150mm. The range consists of Straight, 45 Degree and 90 Degree angle probes making them ideal for accessing awkward areas such as:
Inner diameters
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Thin diameter tubing
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Narrow edges
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Small curves
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Applications at the bottom of small, deep bores.
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Choosing the Correct Probe Type
Ferrous Probes use the Electromagnetic Induction Principle to measure non-magnetic coatings on a magnetic metal base. This includes paint, electroplating, galvanising, hard chrome, sprayed metal, powder coating, plastic, epoxy, rubber, ceramic, etc. on substrates such as steel, cast iron and ferritic and duplex stainless steel.
The Eddy Current Principle is used for all Non Ferrous Probes and can measure non-conductive coatings on non-ferrous metals including paint, anodising, vitreous enamel, plastic, epoxy, varnish power coating, glass fibre, rubber etc. on aluminum, copper, brass, austentitic (non-magnetic) stainless steel and other similar materials. |
Miniature Probe Specifications
Measuring Range |
0 - 500µm |
Accuracy 2 |
±1-3% or ±2.5µm |
Operating Temperature |
Ferrous : Up to 150°C 1 ; Non Ferrous & FNF : Up to 80°C |
Storage Temperature |
-10 to 60°C |
Resolution |
Below 100µm: 0.1µm, 100 - 500µm: 1µm |
Minimum Substrate Thickness |
Ferrous : 0.3 mm; Non Ferrous : 0.1 mm |
1 45mm Ferrous Straight Probe with sleeve fitted : Up to 80 °C
2 Accuracy ±1% when calibrated close to the required thickness, ±3% across the range
The accuracy quoted has been defined using a 100 micron foil, with the miniature probe held in a Probe Placement Jig. |
NON-FERROUS MINIATURE PROBES |
Straight Miniature Probe, 45mm |
T456NM3---A |
3mm |
25mm |
4mm |
6mm |
150mm * |
Straight Miniature Probe, 150mm |
T456NM3---C |
3mm |
25mm |
4mm |
6mm |
260mm * |
45 Degree Miniature Probe, 45mm |
T456NM3R45A |
3mm |
25mm |
4mm |
18mm |
7mm |
145mm |
45 Degree Miniature Probe, 150mm |
T456NM3R45C |
3mm |
25mm |
4mm |
18mm |
7mm |
250mm |
90 Degree Miniature Probe, 45mm |
T456NM3R90A |
3mm |
25mm |
4mm |
16mm |
7mm |
140mm |
90 Degree Miniature Probe, 150mm |
T456NM3R90C |
3mm |
25mm |
4mm |
16mm |
7mm |
245mm |
* The above capabilities have been determined using a calibration foil of 100 microns and the probe held in a probe placement jig. |
