Calculated Industries 4087 User Manual

Explains the function of basic and specialized keys on the calculator.

Details the on/off, arithmetic, number entry, and memory keys.

Describes keys for entering and converting millimeters, centimeters, meters, and feet/inches.

Covers keys for tons, pounds, kilograms, grams, and weight per volume.

Explains keys for sine, cosine, tangent, and their inverse functions.

Details functions like D:M:S conversion, percentage, square root, reciprocal, and pi.

Introduces specialized functions for machining calculations like Cutting Speed and RPM.

Guide to permanently changing the fractional display precision.

How to temporarily change fractional display precision for a single calculation.

Customizes calculator display and calculation formats for units and operations.

Instructions for inputting linear measurements like feet, inches, and millimeters.

How to enter square and cubic measurements.

Convert linear measurements between feet, inches, meters, etc.

Convert square and cubic measurements between units.

Convert weights between tons, pounds, and kilograms.

Convert weight per volume and volume measurements.

Adds and subtracts measurements, including mixed units.

Multiplies dimensional values.

Divides dimensional values.

Computes percentages and works with add-on/discount calculations.

Adds displayed values to the accumulative memory.

Stores and recalls single values in nine independent memory registers.

Calculates rotational speed of the spindle in revolutions per minute.

Determines the cutting tool's movement speed relative to the workpiece.

Measures workpiece surface speed relative to the cutting tool.

Measures material thickness removed per cutting surface.

Optimizes chip load for milling operations with shallow cuts.

Measures workpiece advancement per spindle revolution.

Selects and displays drill sizes in various formats.

Calculates drill point cut depth based on drill size and angle.

Finds thread characteristics like pitch diameter and tap drill sizes.

Tools for measuring threads using wires.

Designs bolt patterns, calculating hole spacing and coordinates.

Solves right triangle problems by inputting two variables.

Computes circle circumference, area, and radius.

Demonstrates D:M:S and basic trigonometry calculations.

Explains display capacity, calculation precision, and error codes.

Describes the automatic power-off feature.

Information on battery type, replacement, and disposal.

Instructions on how to perform a total reset of the calculator.