TIP SENSITIVE BEARING RTD PROBE Temperature Sensor Specifications Variety of Configurations Cut-To-Length Fast Response Tip Sensitive Single and Dual Elements Custom Designs Available The Tip Sensitive Bearing RTD Probe is a tubular sensor in which the sensing element is encased in a copper alloy tip. This allows for increased accuracy and sensitivity to temperature changes at the point of contact in bearings. Inserted at an opening on the bearing housing, they are used in electric motors and generators for continuous sensing of the bearing temperature. Bearing sensors can be used with a fluid sealed adjustable spring loaded holder for proper loading in any depth hole to maintain contact with the bearing surface. Features Variety Sheath Styles: Stainless Steel, Isolated Stainless Steel, Insulated Epoxy Glass Copper Tip Elements, Single and Dual: Platinum, Copper, Nickel Sheath Diameters: 0.188, 0.250, 0.215 Leadwire/Cable Options Applications Industrial Electric Motors Generators SENSOR SOLUTIONS /// TIP SENSITIVE BEARING RTD PROBE 10//2015 Page 1 TIP SENSITIVE BEARING RTD PROBE Temperature Sensor Performance Specifications Insulation Resistance: Repeatability: Single or Dual Elements: Less than .06% change in ice point resistance after 1,000 megohms 500 VDC, leads to case 10 consecutive cycles between ice point and 250C Dual Elements: 100 megohms 50 VDC between elements Long Term Stability: Less than .2% ice point resistance shift Time Constant (typical in 3 ft/sec moving water): after 1,000 hours at 250C Stainless Steel Sheath and Isolated Stainless Steel Sheath: Single Element: 2.0 seconds Self-Heating: Dual Element: 3.0 seconds 10 mW/C in water moving 3 feet/sec Insulated Epoxy Glass Sheath: 2.5 seconds Pressure Rating: Standard Stainless Steel Sheath: 100 psi (6.9 bar) Isolated Stainless Steel Sheath: 100 psi (69. bar) Insulated Epoxy Glass Sheath: 30 psi (2.1 bar) Fluid Sealed Holder: 50 psi RTD Temperature Accuracy Specifications: Standard Tolerances at 0C Element Material TCR .12% .2% .5% Platinum 0.00385 0.30C, .12 N/A 1.20C, .46 Platinum 0.00392 N/A N/A 1.20C, 0.46 Copper 0.00427 N/A 0.71C, 0.028 1.49C, .058 Nickel 0.00672 N/A N/A 0.85C, .68 Dimensions SENSOR SOLUTIONS /// TIP SENSITIVE BEARING RTD PROBE 10/2015 Page 2