The actual prolongation of the APTT is also influenced by low protein S levels (reduction of APC-SR) and by reduced levels of factors V, VIII and IX (increase of APC-SR). The effect of sample handling can be reduced by calculating the APC-Sensitivity Ratio (APC-SR). At a fixed concentration of APC the prolongation of the APTT is dependent on the activator, the CaCl2 concentration, the citrate concentration in the sample, and on sample handling. Listed for velocities between 100-4000 ft.The APC-resistance test consists of two APTT's, one in the presence and one in the absence of a fixed amount of Activated Protein C (APC), and is a simple and reliable method to detect a reduced sensitivity to the anticoagulant action of APC (APC-resistance).The SL-2000-P Photoelectric Conventional Duct Detector is the latest innovation for early detection of smoke and products of combustion present in air moving through HVAC ducts in Commercial, Industrial, and Residential Applications. Output terminals are provided for a wide range of remote accessories such as horns, strobes, remote status indicators, and test/reset key switches or push buttons. The SL-2000 is designed and built to meet all local code requirements, as well as the NFPA and ICC standards regarding HVAC supply and return duct smoke detectors. Complete systems may be shut down in the event of smoke detection. The unit is designed to prevent the recirculation or spread of smoke by air handling systems, fans and blowers. The Key Features below detail many of the customer-driven innovations incorporated in the SL-2000. Innovative product combined with unsurpassed customer service equals the right combination for all of your projects. Our attention to detail has yielded a host of “No-Tools Required” features, as well as a multi-Application performance level as yet unmatched in the industry. This philosophy provides a new level of efficiency in after-purchase value to both the installer/servicer and end-user. Our traditional installer/servicer-friendly approach has been closely followed and expanded throughout the SL-2000.

The SL-2000 includes many features that represent true innovations from current generation duct smoke detectors. The SL-2000 Conventional Duct Detector is the latest innovation for early detection of smoke and products of combustion present in air moving through HVAC ducts in Commercial, Industrial, and Residential Applications. Installation Guide: Conventional Duct Smoke Detector Data Sheet: Conventional Duct Smoke Detector

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