E-42EMitutoyo reserves the right to change any or all aspects of any product specication, including prices, designs and service content, without notice.Example 1Example 2125Connector pinIndicator holderStandard Accessories• 513-401-10H (Metric)• 902053: Clamp• 601471: Indicator holder• 538616: Hexagonal-head wrench (3 mm) Note: Inspection certicate is not attached. Contact your local Mitutoyo sales ofce.Optional Accessories• 900565: Feeler• 900571: Adjustable holder• 900551: Extension holderMounting the Indicator Holder125Indicator holderConnector pinTypical application• Squareness (perpendicularity) and straightness measurements can be performed accurately and efciently by just moving a lever. Use the vertical motion handle on the rear of the main unit for operation.• Highly accurate measurement of squareness and straightness is available by calibrating a square as a master using the built-in perpendicularity adjustment mechanism. Prepare a square to be used for accuracy check/adjustment separately.• Sliding force: Approx. 2 to 5 NSquare MasterSERIES 311 — Squareness/Straightness Measuring311-215 311-225311-245SPECIFICATIONSMetricOrder No.Vertical travel (mm)Squareness (µm)Straightness (µm)Dimension (mm)Mass (kg)WidthDepthHeight311-215*1503218020042013.7311-225*25062.518020052016.2311-24545093.522022072024* Riser blocks to extend the height of Square Masters can be used. (Refer to Page E-36 for details)Unit: mm886783721654542Test indicatorFeeler122657.550ø6Front-rear ne adjustment knobRight-left adjustment knobø6200Optional accessories900565: FeelerFor probing surfaces that the contact point of a detector cannot reach.900571: Adjustable holderEnables easy adjustment of indicator position.900551: Extension holderMeasurement position can be extended by using this 200 mm length holder instead of the indicator holder.Unit: mmUnit: mm

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