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Products－Industrial temperature sensor－MI metal sheathed thermocouples－Inspection standards
Inspection Standard
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Dimensional
Inspection
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Sheath OD
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Φ0.5～Φ4.8 mm ±0.05 mm
Φ6.0～Φ8.0 mm ±0.10 mm
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Length of Sheath
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<150 mm ±2.0 mm
≥150 mm ±1.5%
Spring type ±3.0 mm
The Maximum length is 1 meter．The longer lengths than 1 meter tobe discussed later．
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Nipple length
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±3 mm
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Compensating cable length
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<1000 mm ±15 mm
≥1000 mm ±1.5%
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E.M.F. Test
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T Thermocouple
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100℃ Boiling point of water
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N, K, E, J Thermocouple
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300℃ Comparison with Reference
Thermocouple unsing 300℃ Niter Bath
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Insulation
Resistance
Test
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The resistance between the wire and the sheath is measured at room temperature. (However this test is not performed for the grounded junction type.)
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Sheath OD (mm)
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Characteristics
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Φ0.15 ≤ OD < Φ0.25
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5 MΩ / 25 V DC
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Φ0.25 ≤ OD < Φ0.5
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5 MΩ / 50 V DC
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Φ0.5 ≤ OD < Φ2.0
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20 MΩ / 100 V DC
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OD > Φ2.0
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100 MΩ / 500 V DC
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Inspection Table Inspection Certificate is attached to the product．Whenever the inspection results are especially required，please so advise．
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