Applications
Non-destructive coating thickness measurement of:
non-magnetic coatings, e.g. paint, enamel, chrome on steel
insulating coatings, e.g. paint and anodizing coatings on non-ferrous metals
Performance features
High precision coating thickness measurement up to 15 mm / 600 mils
Increased accuracy and reproducibility achieved by sensor integrated digital signal processing (SIDSP)
Universal probe with automatic substrate detection allows fast measurement on steel and non ferrous metals
Wear resistant probes of practically unlimited lifetime
Optimized temperature compensation
| |
Minitest 720 |
Minitest 730 |
Minitest 740 |
| Sensor model |
built-in |
external |
changeable from built-in to external |
| Number of data memories |
10 |
10 |
100 |
| Number of storable readings |
max. 10,000 readings in total |
max. 10,000 readings in total |
max. 100,000 readings in total |
| Statistics |
Number of readings, minimum, maximum, average, standard deviation, coefficient of variation, block statistics (norm-conforming/free configurable) |
Calibration procedures according to
international norms and standards |
ISO, SSPC, „Swedish“, „Australian“ |
| Calibration modes |
Factory calibration, Zero calibration, 2-point and 3-point calibration, user adjustable offset value |
| Monitoring of limits |
Visual and audible alarm to indicate limit deviations |
| Measuring units |
μm, mm, cm; mils, inch, thou |
| Operating temperature |
– 10°C…60°C; 14°F…140°F |
| Storing temperature |
– 20°C…70°C; – 4 °F…158 |
| Data port |
IrDA 1.0 (infrared) |
| Power supply |
2 Mignon/AA batteries |
| Norms and standards |
DIN EN ISO 1461, 2064, 2178, 2360, 2808, 3882, 19840, ASTM B244, B499, D7091, E376, AS 3894.3, SS 1841 60, SSPC-PA 2 |
| Dimensions |
157 mm x 75.5 mm x 49 mm; 6.2” x 2.97” x 1.93” |
| Weight built-in/external |
approx. 175 g; 6.2 oz |
approx. 210 g; 7.4 oz |
approx. 175 g/230 g; 6.2 oz/8.1 oz |
|
F 1.5, N0.7, FN 1.5 |
F2 |
F5, N2.5, FN5 |
F15 |
|
F |
N |
F |
F |
N |
F |
Measuring Range
|
0 - 1.5mm
60mils
|
0 - 0.7mm
27mils |
0 - 2mm
80mils
|
0 - 5 mm
200mils
|
0 - 2.5mm
100mils
|
0 - 15mm
590mils
|
| Typical Field of application |
small samples, thin coatings, use with measuring stand |
rough surfaces |
standard sensors for a wide field of
applications |
thick coatings |
| Measuring principle |
magnetic induction |
eddy currents |
magnetic induction |
magnetic induction |
eddy currents |
magnetic induction |
| Accuracy |
± (1 μm + 0.75% of reading)
± (.04 mils + 0.75% of reading) |
± (1,5 μm + 0.75% of reading)
± (.06 mils + 0.75% of reading) |
± (5 μm + 0.75% of reading)
± (.20 mils + 0.75% of reading) |
| Repeatability |
± (0,5 μm + 0.5% of reading)
± (.02 mils + 0.5% of reading) |
± (0,8 μm + 0.5% of reading)
± (.03 mils + 0.75% of reading) |
± (2,5 μm + 0.5% of reading)
± (.10 mils + 0.75% of reading) |
| Low range resolution |
0.05 μm; .002 mils |
0,1 μm; .005 mils |
1 μm; .05 mils |
| Minimum curvature radius convex |
1,0 mm; .040” |
1,5 mm; .060” |
5 mm; .20” |
Minimum curvature radius concave
(external sensor without prism) |
7.5 mm; .30” |
10 mm; .40” |
25 mm; 1.0” |
Minimum curvature radius concave
(built-in sensor) |
30 mm; 1.20” |
30 mm; 1.20” |
30 mm; 1.20” |
| Minimum measuring area |
Ø 5 mm; .20” |
Ø 10 mm; .40” |
Ø 25 mm; 1.0” |
| Minimum substrate thickness |
0.3 mm; .012” |
40 μm; .0016” |
0.5 mm; .020” |
0.5 mm; .020” |
40 μm; .0016” |
1 mm; .040” |
| Measuring rate in continuous mode |
20 readings per second |
Max. measuring rate in single
readings mode |
70 readings per minute |
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