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1 be provided to allow for the manual collection of a sample, along with controls to allow for <br /> 2 the manual operation of the sampler's pump. <br /> 3 <br /> ' a C. In operation, the sampler's electronics shall continuously run diagnostic routines to check <br /> 5 the internal RAM and PROM memories. Any errors detected shall be indicated on the <br /> 6 display. The sampler shall also have manually initiated diagnostic routines to further <br /> ' 7 evaluate the operational status of the sampler. <br /> 8 <br /> s D. All of the sampler's electronic and mechanical components shall be contained within a <br /> 10 totally sealed controller. The controller shall be made of 1/4 inch thick structural foam <br /> 11 NoryITM plastic. It shall conform to NEMA 4X standards for watertight, dust-tight and <br /> 12 corrosion resistant operation. The components inside the controller shall also be protected <br /> 13 from accidental submersion under 6 feet of still water for 30 minutes (NEMA 6 self certified). <br /> 14 The controls, indicators, and display shall be readily accessible to the user through a totally <br /> 15 sealed touch-pad controller label. No additional cover for the controller shall be required <br /> 16 for sealing. The controller shall internally contain 4 ounces of desiccant to control case <br /> ' 17 humidity. The controller will be provided with an internal case humidity indicator to indicate <br /> 18 the presence of moisture inside the controller. All of the sampler rs logic circuitry shall be <br /> 19 contained in a single, easily replaceable circuit board assembly. <br /> 20 <br /> ' 21 E. The sampler shall operate on 120 volt AC, 60 Hz line power and shall require a single <br /> 22 power cord. <br /> 23 <br /> 24 F. The sampler shall contain an internal lithium battery which provides the sampler with <br /> 25 continuous memory. This battery shall have a minimum typical life of 5 years and shall <br /> 26 maintain the sampler rs program settings when the sampler is turned off, or in the event <br /> 27 of any external power interruption. <br /> 28 <br /> 29 2.05 ENCLOSURE <br /> 30 <br /> 31 A. Provide a 32' x 32' x 48' high standard weather proof enclosure constructed from molded <br /> 32 fiberglass reinforced polyester resins 1/8-inch laminate. <br /> 33 <br /> ' 34 B. The exterior shall be coated with ultraviolet resistant gel coat, and the interior shall be <br /> 35 fiberglass. <br /> 36 <br /> 37 C. Access shall be through a top and front hinged hatch and door. <br /> 38 <br /> 39 D. Hinges and louvers shall be 304 SS. Chrome plated swivel hasps will be provided for a <br /> 40 padlock. <br /> ' 41 <br /> 42 E. Two rainproof louvers shall be mounted on top hatch. <br /> 43 <br /> 44 2.06 MANUFACTURER <br /> 45 <br /> 46 A. Sampler shall be ISCO Model 2910R, or equal. <br /> 47 <br /> ' 48 B. Enclosure shall be COSYSCO, Inc., Model 5320, or equal. <br /> 49 <br /> 50 <br /> 51 <br /> EFFLUENT SAMPLER <br /> 081294 11701-3 <br />