B-42BMitutoyo 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.These marks indicate that a product has successfully passed IP65-level testing, which is carried out by the independent German certication organization TÜV Rheinland.Spline Micrometers SERIES 331, 111, 131• The anvil and spindle are of small diameter for measuring splined shafts, slots, and keyways. • IP65 water/dust protection (series 331).• Measuring faces: Carbide • Equipped with Ratchet Stop for constant measuring force.111-115Inch/MetricOrder No.RangeResolutionAccuracy*RemarksDigimatic (LCD)331-351-300 - 1".00005"/0.001mm±.0001"Type A331-352-301" - 2"331-353-302" - 3"331-354-303" - 4"±.00015"331-361-300 - 1"±.0001"Type B331-362-301" - 2"331-363-302" - 3"331-364-303" - 4"±.00015"* Excluding quantizing errorInchOrder No.RangeGraduationAccuracyRemarksAnalog111-1660 - 1".0001"±.00015"Type ASPECIFICATIONSMetricOrder No.RangeResolutionAccuracy*RemarksDigimatic (LCD)331-251-30 0 - 25mm0.001mm±2µmType A331-252-3025 - 50mm331-253-3050 - 75mm331-254-30 75 - 100mm±3µm331-261-30 0 - 25mm±2µmType B331-262-3025 - 50mm331-263-3050 - 75mm331-264-30 75 - 100mm±3µm* Excluding quantizing errorMetricOrder No.RangeGraduationAccuracyRemarksAnalog111-215 0 - 25mm0.01mm±3µmType B111-115 0 - 25mmType A111-11625 - 50mm111-11750 - 75mm111-118 75 - 100mm±4µm111-119100 - 125mm111-120125 - 150mm111-121150 - 175mm±5µm111-122175 - 200mm111-123200 - 225mm111-124225 - 250mm±6µm111-125250 - 275mm111-126270 - 300mmMechanical counter model131-1150 - 25mm±3µmType AIP Codes (series 331)Level 6:Dust-proof.No ingress of dust allowed. Level 5:Protected against water jets.Water projected in jets against the enclosure from any direction shall have no harmful effects. Technical DataFlatness: 0.3μm/ .000012” Parallelism: (2+R/100)μm, R = max. range (mm) [.00008” + .00004(R/4)]” R = max range (inch) fraction rounded downOptional accessories Connecting cables for series 331 1m: 05CZA662 2m: 05CZA663USB Input Tool Direct USB-ITN-B (2m): 06ADV380BConnecting cables for U-WAVE-T 02AZD790B 160mm For foot switch: 02AZE140B Refer to page B-68 for details.101055ø3ø2Type A ø3mmType B ø2mmUnit: mmUnit: mmBattery for series 331SR44 (1 pc), 938882, for initial operational checks (standard accessory)Battery life:Approx. 2.4 years under normal use (for series 331)Length standard: Electromagnetic rotary sensor(for series 331)Standard accessories: Reference bar, 1 pc(except for measuring range 0-25mm (0-1") models)Spanner (301336), 1 pc 0000040191(Refer to page X for details.)331-251-30


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