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W V <br /> • p, 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. grade. Use a minimum 4"riser to grade for removal <br /> Contact Tank Technical Support for instructions. and replacement of sensor. <br /> • The standard monitoring fluid is a non-toxic brine • CSI recommends a permanent pull cable be installed <br /> solution of 30%calcium chloride in water with a and accessible at grade to facilitate periodic sensor <br /> biodegradable green tint. inspections. <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: <br /> does not need to be vented. <br /> DRY ANNULAR SPACE VACUUM OR <br /> TABLE 0-2 AIR PRESSURE MONITORING <br /> Tank Diameter <br /> Reservoir Fluid Level Measurement Consult monitoring equipment manufacturer for proper <br /> installation. <br /> &Capacity Tank is Empty Tank is Half Full Tank is Full <br /> 4'(1M and less) 5" 7" 91. • Maximum vacuum for continuous monitoring is 5 psig. <br /> 4'(over 1M) 4%" 43/" 5" - Maximum pressure for continuous air pressure <br /> monitoring is 3 psig. <br /> 6'(6M and less) 3'/a" 4'/a" 5'i4" <br /> 6'(over 6M) 3Y" 4°/," 6" • For tanks shipped under vacuum,refer to Supplemental <br /> Documents-Section R <br /> 8'(6M and less) 4%;' 4'/." 5%;' <br /> 8'(over 6M) 4%" 5" 6" <br /> 10'(12M and less) 4Y2" 5%s" 6%" <br /> P. CONTAINMENT COLLARS, <br /> 10'(13M thru 20M) 5" 6%z" 8%a" TANK SUMPS AND TANK RISERS <br /> 10'(21 M thru 30M) 3%" 6%" 9W <br /> 10'(31M thru 40M) 4%" 6" 7'/:" <br /> 10'(over 40M) 4" 6" 6" In freezing conditions, protect collar from water <br /> �v accumulation. Freezing water may cause damage. <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. <br /> - Remove the sensor. Secondary containment collar must be continuously <br /> - Test the sensor for proper operation. monitored for potential spills or leaks. <br /> - Check that the float sensor is positioned on the CSI single and double-wall containment collars are <br /> tank top.The bottom float should be within 2" factory installed to the tank top to provide a means of <br /> of the bottom and floats are spaced a minimum secondarily containing leaks from pumps and piping. <br /> of 10"apart. <br /> - Reset the fluid level in the reservoir by adding or Figure P-1 <br /> removing fluid as indicated in Table 0-2. watertiQM <br /> Manhole RdMoreed Concrete <br /> - Reinstall the sensor. rSumpUd <br /> Note:If a second alarm occurs,additional instructions <br /> for setting the brine level are available from <br /> Containment Solutions Field Service. 2"ein' <br /> Riyld Board <br /> DRY ANNULAR SPACE MONITORING (5•x5'x3/4") Encloaure Top <br /> oplional Round <br /> • Consult monitoring equipment manufacturer for s�pBo <br /> proper installation. <br /> • When liquid or vapor sensors are used,the tank may <br /> be sloped at time of installation. Polygon y O0"d <br /> • If tank is sloped, place tank so that the lowest <br /> elevation is at monitoring end. Adtxz,ivechannd <br /> • Calibration charts are designed for level tank censor containmentColler <br /> installation. Sloped tanks will affect the tank <br /> calibration chart accuracy. <br /> • Use a wire puller to position sensor at the tank CSI tank sumps are designed to provide a watertight <br /> bottom. connection to the tank collar utilizing an adhesive joint. <br /> 24 <br />