D-55Mitutoyo reserves the right to change any or all aspects of any product specication, including prices, designs and service content, without notice.DQM-HeightSERIES 518 —High-Performance Height GageHeight GageA standard measuring tool of industryAn inspection certicate is supplied as standard. Refer to page U-9 for details.Standard Accessories• 05HZA148 ø5 mm stepped probe • 12AAA715 Probe diameter calibration block• Alkaline batteries×4 (AA/LR6)Measurement exampleOrder No.Metric 518-240518-242518-244518-246Inch/Metric 518-241518-243518-245518-247Measuring range (stroke)0 to 465 mm(350 mm/14 in)0 to 715 mm(600 mm/24 in)0 to 465 mm(350 mm/14 in)0 to 715 mm(600 mm/24 in)ResolutionMetric0.001 mm/0.005 mmInch/Metric0.001/0.005 mm0.00005/0.0001/0.0002 inAccuracy at 20 ˚CIndication accuracy*1± (2.4 + 2.1L/600) µmRepeatability*12 ≤ 1.8 µmPerpendicularity*2 (20 ˚C)7 µm12 µm7 µm12 µmGuiding methodRoller bearingDrive methodManual (wheel)Measurement principleElectromagnetic induction absolute encoderMeasuring force1.5±0.5 NData output portsDigimatic/USB*3Air-suspension featureNot includedIncluded (for positioning only)*4Power supplyAlkaline AA/LR6 batteries×4 (standard accessories)/AC adapter (optional accessory)*5/Supports NiMH (HR6) rechargeable batteries×4Battery life guidelines*6Approx. 1,200 hours (without using the air-suspension feature )Approx. 90 hours (when using the air-suspension feature )Mass25 kg29 kg26 kg30 kgDimensions (W×D×H)Stroke 350 mm type: 280×273×784 mmStroke 600 mm type: 280×273×1016 mmOperating temperature range (recommended)0 to 40 ˚C (10 to 30 ˚C)Operating humidity range20 to 80% RH (non-condensing)Storage temperature range-10 to 50 ˚CStorage humidity range5 to 90% RH (non-condensing)*1 The indication accuracy and repeatability represent the values obtained from the height measurement of a flat surface using the standard holder with ø5 ball contact point. In the case of diameter, minimum (maximum) value, circle pitch or difference measurement, measuring errors may be larger than the accuracy ratings listed in the table due to variations in measuring force during a scanning measurement, which differs from height measurement.*2 Indicates the value obtained from the measurement of a straight surface placed perpendicular to the the base reference surface using the Lever Head (519-521) and Mu-checker (519-551).*3 Requires special communication driver. Consult your local Mitutoyo Sales Office for details. These can be downloaded from the Mitutoyo web site.*4 When using a model with the air-suspension feature, it is advisable to use a JIS 1 class, or higher, surface plate. Using on surfaces with scratches or unevenness may prevent the system operating to the specified performance.*5 The AC adapter cannot be used to recharge rechargeable batteries.*6 Battery life depends on the operating conditions. In particular, it is more economical to use the optional AC adapter to power the instrument if the application requires prolonged use of the air-suspension feature.SPECIFICATIONSProducts equipped with the measurement data output function can be connected to the measurement data network system MeasurLink® (refer to page A-25 for details).• Best-in-class accuracy ±(2.4 + 2.1L/600) μm• Built-in air-suspension feature mechanism enables smooth movement over a surface plate. (Lower-cost version AX type without air suspension also available.)• Easy-to-view, simple control panel enables most measurements to be made with a single keystroke.• Eco-friendly product, operable for approximately 1,200 hours with four AA alkaline batteries.(Four commercially available nickel hydride batteries can also be used.)• By installing the U-WAVE-T measurement data wireless communication system or USB communication driver in your PC, the optional functions that enhance operability, including output of measurement data to your PC, become available. The USB communication driver can be downloaded from the Mitutoyo website. (Communication software is separately required.)• Height measurementHeight• ID measurementID• Runout measurement Min. valueMax. valueRunout (MAX - MIN) Hold

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