JS8746 Harsh Environment Temperature Sensor Ensuring a temperature-controlled environment for transportation of goods by land, sea or air is of the utmost importance to guarantee that the merchandise does not deteriorate during shipment due to temperature. In many cases, such as medical products, the shipping companies have a statutory duty to demonstrate that the product has been kept within strict temperature limits. Failure to do so can lead to the write-off and destruction of large quantities of expensive product. The marine environment is especially complex and susceptible to change container ships are subject to the extremes of artic and tropical weather systems. Sea water is highly corrosive, containing large quantities of chlorides and sulfates. Ozone, ultraviolet sunlight (UV) and cleaning detergents provide additional degradation potential to exposed materials. Although the JS8746 Harsh Environment Temperature Sensor has been designed to address all aspects of temperature measurement for HVAC control systems in the container-ship market, this sensor can also be used in a variety of other applications. Employing materials and build standards that enhance the sensors ability to withstand water ingression and degradation, the sensor meets statutory requirements for temperature measurement and performance expectations. Highly Accelerated Corrosion Test (HACT) Highly Accelerated Corrosion Test (HACT) was developed by Delta (DK) and has been accepted throughout the marine shipping market to demonstrate long-term performance of electrical equipment exposed to this environment. Each day of HACT testing equates to 1 year of marine environment exposure. The JS8746 has exceeded 14 days of testing, substantially outperforming competitor products. Features Applications HACT Exposure: +14 days Marine container ship applications Temp Tolerance Rating: 0.2C and 0.15C Compressors Temp Rating: -40C to 120C Condensing units Environmental Protection: IP68 Heat pumps Resistant to: Salt solutions, Ozone, UV and a variety of Air conditioning marine environment cleaning detergents Refrigerated truck and trailer Inert to trace levels of airborne R134a refrigerant Stainless steel hard shell, with class corrosion resistance A2 Reefer containers or better according to ISO3506 Double insulated cable, multicore copper conductors and tin-coated, conductors cross-sectional area 0.25 mm 2 (23 AWG) min, configured as 19mm x 0.14mm Crimp caps, tin-coated brass, with integral strain relief for Amphenol the conductor Advanced SensorsJS8746 Specifications Resistance at 25C: 10,000 nominal Thermal Equilibrium Temperature Tolerance: 0.2C or 0.15C (Temperature Range: 0C to 70C) B25/85: 3977K nominal Withstand Voltage: 2.5kV rms for minimum of 1 minute, where a broadly sinusoidal wave-form at 50 Hz is applied between the stainless steel housing and the conductors of the cable. A failure is recorded if the current exceeds 1mA. Temperature Range: -40C to 125C Time Constant: 20 seconds or less to register 63% of a known temperature transient Housing: Stainless steel hard shell, with class corrosion resistance A2 or better according to ISO3506 Cable: Double-insulated, multicore copper conductors and tin-coated conductors cross-sectional area 0.25 mm 2 (23 AWG) min, configured as 19mm x 0.14mm Crimp Caps: Tin-coated brass with integral strain relief for the conductor Part L / K / Tolerance Number mm mm 0-70C / C JS8746A-0.20 1000 50 0.20 JS8746B-0.20 2000 50 0.20 JS8746C-0.20 3000 50 0.20 JS8746A-0.15 1000 50 0.15 JS8746B-0.15 2000 50 0.15 JS8746C-0.15 3000 50 0.15 Thermal Equillibrium Resistance Versus Temperature Properties 2