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VR-202-Z -34 Exhibit 2 <br /> Maintenance <br /> The TLS console, including interface modules, do not require scheduled maintenance. <br /> ISD System Self-Test Monitoring algorithms are designed to verify proper selection, <br /> setup and operation of the TLS console and sensors. <br /> There is no recommended maintenance, inspection nor calibration for the Vapor Flow <br /> Meter or the Vapor Pressure Sensor. Servicing should be performed in <br /> response to warning or alarm conditions. <br /> RF Wireless Components <br /> The Veeder-Root wireless components must be installed in accordance with IOM 10: <br /> TLS RF Wireless 2 System (W2) Installation and Maintenance Guide of the CARB <br /> Approved IOM. The wireless system consists of the following devices (Figure 2-ISD- <br /> VR-10) <br /> a. RF Receiver-2 <br /> b. RF Repeater-2 <br /> C. RF Transmitter-2 <br /> d. RF Battery Pack <br /> e. TLS RF Console-2 Box <br /> These devices convert data in smart-sensor-protocol format to RF format and back to <br /> smart-sensor format for TLS such that TLS software assumes it is directly connected <br /> to the sensor. The transmitter automatically identifies the Flow Meter connected to it <br /> and polls it periodically. The collected data is converted to radio format and transmitted <br /> through air to receiver. The receiver collects the radio packet and within 200ms sends the <br /> data to the TLS RF on RS485 bus. The TLS RF provides this data to TLS on next poll by <br /> TLS. To prevent adjacent GDF with wireless equipment from interfering with each others <br /> transmissions, dip switches on the Transmitter and Receiver are used to configure a site <br /> ID. The Repeater is not required, but may be installed as needed to provide a second <br /> path for the wireless signal traveling from Transmitter to Receiver. <br />