Sensors & Instruments Solutions Guide - MINCO - #49

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Page 3-9 Specifications subject to change PROBES | LEAD LENGTH CASE LENGTH ISOLATION INSULATOR 0.188" (4.8 mm) DIAMETER 3.0" (76 mm) THERMOCOUPLE PROBE 10" (254 mm) Electrically Isolated Thermocouples Overview • Electrically isolated sensing tip for “hot” bearings • Accurate sensing to 260°C (500°F) • Copper alloy tip for fast time response and increased tip sensitivity Specifications Dielectric strength of isolation insulator: 1000 volts RMS at 60 Hz for 30 seconds, between case sections, 1 mA max. leakage current. Pressure rating: 30 psi (2.1 bar). Vibration: Withstands 10 to 2000 Hz at 20 G’s minimum per MIL-STD-202, Method 204, Test Condition D. Shock: Withstands 100 G’s minimum sine wave shock of 8 milliseconds duration. Temperature Range: -50 to 260°C (-58 to 500°F). Case: Stainless steel with copper alloy tip. Minimum case length: 4.0" (101.6 mm). Maximum case length: 48" (1220 mm), longer on special order. Leads: Solid thermocouple wire, AWG 20 (AWG 24 for stainless steel braid option). Specify PTFE insulation or PTFE with stainless steel armor and shrink tubing over all. Time constant: Typical value in moving water: Grounded junction: 1.5 seconds. Ungrounded junction: 7 seconds. Insulation resistance: 10 megohms min. at 100 VDC, leads to case, ungrounded junctions only. Specification and order options TC2198 Model number: TC2198 E Junction type: E = Chromel-Constantan J = Iron-Constantan K = Chromel-Alumel T = Copper-Constantan U Junction grounding: G = Grounded U = Ungrounded 225 Case length: Specify in 0.1" increments (Ex: 225 = 22.5 inches) T Covering over leadwires: T = PTFE only A = Stainless steel armor plus shrink tubing S = SS braid over PTFE (5" min. case length) 48 Lead length in inches TC2198EU225T48 = Sample part number Specify and order products at: www.minco.com/sensors_config