![]() This is useful when the measured item is too large to access with a micrometer or other device. Large sheets of material such as paper, plastic, fabric and rubber can be measured with a coating thickness gage by placing the material over the zero plate. Substitute as a base for materials without a substrate Zero plates can be used to provide a substrate where none exists. Check zero, adjust to "0" if necessary, then place the shim/block on the zero plate and measure. Use with certified and non-certified plastic shims and polystyrene blocks A zero plate provides a convenient base onto which plastic shims and polystyrene blocks can be placed for verification purposes. After this adjustment is performed, the gage should measure within tolerance on the coated standards. If not, electronic gages can usually be adjusted to "0" on the zero plate. The first gage measurement is taken on the zero plate to verify that the gage measures zero correctly. Use with Certified Coated Metal Standards Coated Metal Standards for magnetic and eddy current gages usually include an uncoated zero plate. Can be placed on top of soft or tacky coating films to obtain thickness measurements without the gage probe depressing the coating film.Protects the probe from damage or premature wear when placed over hot or abrasive surfaces.For use with all Type 2, electronic coating thickness gages.Gage performance can be conveniently verified on a regular basis as required by some international test methods Simulate a coating over a particular substrate material or shape.They are not suitable for use with magnetic pull-off gages. Non-Certified Plastic Shims (foils) provide a quick operational check of the instrument and they allow the user to perform practice measurements when placed over metal.Īlternatively, they can be placed over an uncoated metal substrate. ![]() A coating thickness gage measures shim thickness when this shim is placed over a smooth metal surface ( zero plate). They have a reduced accuracy of ☒ µm (☐.08 mil). Certified and labeled in both Metric and Imperial unitsĬertified Plastic Shims (foils) provide an economical alternative to coated metal plates. ![]()
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