Webber EMI SHED systems use dedicated, self-contained HVAC systems as standard equipment. Each system is sized according to the SHED systems enclosure and the customer’s temperature requirements. In the case of VV/VT SHED systems, the HVAC systems are capable of moving the SHED air temperature between 65 and 105 °F in approximately 1 hour. Custom systems are available to produce and maintain SHED air temperatures below 40 and above 140 °F. In all cases, Webber EMI SHEDs are capable of maintaining temperatures required for diurnal emission and hot soak testing as described in CFR 40-86.117.96 and CFR 40 part 86 subpart B, respectively.
All Webber EMI SHED systems utilize a Windows-based, proprietary SHED data acquisition and control system. This system is versatile, powerful and very user-friendly. It contains a menu of all pertinent U.S. EPA and California ARB SHED test procedures, ready for immediate use. It also provides the ability to easily develop and save custom test procedures for internal product development. This control system is capable of being used with a variety of HC analyzers. In addition to the PC-based controller, Webber EMI SHED systems include a local control panel, which allows for full manual operation of the SHED and various sub-systems.