E-43EMitutoyo operates a policy of continuous improvement that aims to provide the customer with the benet of the latest technological advances.Therefore the company reserves the right to change any or all aspects of any product specication without notice.• Squareness (perpendicularity) and straightness measurements can be performed accurately and efciently by just moving a lever.• High accuracy perpendicularity and straightness measurement can be performed by prior setting to a master square using the built-in instrument squareness adjustment mechanism. • Sliding force: Approx. 2 to 5NSquare MasterSERIES 311 — Squareness / Straightness Measuring311-215 311-225311-245Example 1Example 2Unit: mm125Connector pinIndicator holder125Indicator holderConnector pin886783721654542Test indicatorFeeler122657.550ø6Front-rear ne adjustment knobRight-left adjustment knobø6200Reference GagesLength Standards Brought to You by MitutoyoStandard Accessories513-405: Test indicator (Metric)513-403: Test indicator (Inch)902053: Clamp601471: Indicator holder538616: Allen wrench (3mm) Note: Inspection certicate is not attached. Contact your local Mitutoyo sales ofce.Optional accessory900571: Adjustable holder900551: Extension holder900565: FeelerMounting the indicator holderSPECIFICATIONSMetricOrder No.Vertical travelSquarenessStraightnessDimension(W×D×T)Mass311-215*150mm3µm2µm180×200×420mm13.7Kg311-225*250mm6µm2.5µm180×200×520mm16.2Kg311-245450mm9µm3.5µm220×220×720mm24Kg* Riser blocks to extend the height of Square Masters can be used.Optional accessory900565: FeelerFor probing surfaces that the contact point of a detector cannot reach.No.900571: Adjustable holderEnables easy adjustment of indicator position.No.900551: Extension holderMeasurement position can be extended by using this 200mm length holder instead of the indicator holder.Unit: mmUnit: mm


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