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• • . -M- M& <br /> O, P <br /> - Provisions must be made to access the reservoir For ease of installation insert the sensor in the tank <br /> for brine filling and the removal of air from the cavity before installing the monitoring riser pipe to <br /> annular space at each end of the tank. i grade. Use a minimum 4" riser to grade for removal <br /> - Contact Tank Technical Support for instructions. iand replacement of sensor. <br /> I • CSB recommends a permanent pull cable be installed <br /> • The standard monitoring fluid is a non-toxic brine and accessible at grade to facilitate periodic sensor <br /> solution of 30%calcium chloride in water with a inspections. <br /> biodegradable green tint. <br /> • Add brine to the reservoir until the reservoir fluid level For dry monitored double-wall tanks, annular space <br /> matches the following table values in Table 0-2: does not need to be vented. <br /> DRY ANNULAR SPACE VACUUM OR <br /> TABLE 0-2 AIR PRESSURE MONITORING <br /> Tank Diameter Reservoir Fluid Level Measurement <br /> Consult monitoring equipment manufacturer for proper <br /> &Capacityinstallation. <br /> Tank is Empty Tank is Half Full Tank is Full <br /> ° Maximum vacuum for continuous monitoring is 5 psig. <br /> 4'(1M and less) 5" 7„ 9„ <br /> 4'(over 1M) 4'/a' 4%" 51, ° Maximum pressure for continuous air pressure <br /> monitoring is 3 psig. <br /> 6'(6M and less) 3g/<" 4$/<" 5%z' <br /> 6'(over 6M) 3%2" 4%" 6" <br /> 8'(6M and less) 4%4" 4%" 5%4" <br /> 8'(over 6M) 4%4" 5" 6" , <br /> 10'(12M and less) 4'/2" 5'/2" 6'/2" <br /> 10'(13M thru 20M) 5" 6Y2' 8%a' <br /> 10'(21 M thru 30M) 3%" 6'/2" 9%" <br /> 10'(31M thru 40M) 4%° s° 7%" j In freezing conditions,protect collar from water <br /> accumulation.Freezing water may cause damage. <br /> 10'(over 40M) 4" 6" 8'. <br /> • If the reservoir sensor indicates a high or low level <br /> alarm, it is necessary to first determine that the alarm <br /> is not the result of an incorrect initial fluid level setting. Secondary containment collar must be continuously <br /> - Remove the sensor. monitored for potential spills or leaks. <br /> I <br /> - Test the sensor for proper operation. CSI single and double-wall containment collars are <br /> - Check that the float sensor is positioned on the factory installed to the tank top to provide a means of <br /> tank top.The bottom float should be within 2" secondarily containing leaks from pumps and piping. <br /> of the bottom and floats are spaced a minimum <br /> of 10"apart. Figure P-1 <br /> - Reset the fluid level in the reservoir by adding or Manhole Sump UdWatertht Reinforced Concrete <br /> removing fluid as indicated in Table 0-2. <br /> - Reinstall the sensor. ° <br /> Note: If a second alarm occurs,additional instructions 2"min. <br /> for setting the brine level are available from Rigid Board <br /> Containment Solutions Field Service. (5'x 5'x 3/4") Enclosure Top <br /> Optional Round <br /> DRY ANNULAR SPACE MONITORING Sxteumn�onp Body <br /> E <br /> • Consult monitoring equipment manufacturer for <br /> proper installation. Polygon or Round <br /> • When liquid or vapor sensors are used,the tank may CIA <br /> Sump Body <br /> be sloped at time of installation. ( Adhesive Channel <br /> • If tank is sloped, place tank so that the lowest Electronic Containment Collar <br /> elevation is at monitoring end. Leaksensor <br /> • Calibration charts are designed for level tank <br /> installation. Sloped tanks will affect the tank CSI tank sumps are designed to provide a watertight <br /> calibration chart accuracy. connection to the tank collar utilizing an adhesive joint. <br /> • Use a wire puller to position sensor at the tank <br /> bottom. <br /> 24 <br />