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BB 660/25.5 is the Standard Platinum Resistance Thermometer jointly developed with National Institute of Advanced Industrial Science and Technology (AIST/NMIJ) as an interpolation device for measurements from -190℃ to approximately +660℃. Employing a sensing element with a single helix coil structure (Japan Pat. No.3380523) provides superior stability at high temperature and high resistance to vibration. It can also provide smaller self-heating temperature rise and high response.
Standard Specifications
Characteristics
Sensing Element
:
Single helix coil wound in a quarts sensing frame at noninductive winding (L ≦ 40mm)
Sensing Element
:
Platinum (4-wires connection)
Quartz Sheath
:
φ7mm x approx.570mm length
Sensing Handle
:
φ19mm x approx.100mm, Aluminum outer casing
Lead Wires
:
4 Teflon insulated copper wires jacketed with cross-linked polyethylene x 2.5m