The Mitutoyo 543-285B Absolute Digimatic Indicator ID-C Calculation Type has now been discontinued and replaced by the new Mitutoyo Digimatic Indicator for Calclulation Type: 543-340B. This is a direct replacement per Mitutoyo America.
The Mitutoyo 543-285B ABSOLUTE Digimatic Electronic Indicator has the following specifications:
Resolution: 0.0002 - 1mm (switchable)
Contact Point: M2.5 x 0.45 Thread Thread
Measuring Force: 1.5N or less
Length Standard: ABSOLUTE electrostatic capacitance type linear encoder
Max. Response Speed: Unlimited
Battery: SR44 (1pc.) 938882
Battery life: Approx. 12 months under normal use
A conventional Digimatic indictor simply displays a spindle displacement, but the Calculation-Type Digimatic indicator incorporates an internal calculation function in place of spindle displacement. With fixtures, measurements such as feeler, inside diameter and radius of curvature measurement can easily be obtained without the hassle of conversion tables or equivalents.
The Absolute Digimatic indicator performs internal calculations using the formula Ax + B + Cx^-1 (assuming spindle displacement as x) while the specified coefficients A, B and, C can be set with respect to the purpose of measurement or dimensions of the fixtures. The unique features allows you to read your measurements directly, without fumbling for conversions.
Origin-set/Preset, Zeroset, GO/+/-NG judgement, Counting direction switching, Power ON/OFF, data output, inch/mm conversion (on inch/metric models only)