Geotech Marschalk 94000 Operation Manual

Text of Geotech Marschalk 94000 User Guide:

• 1 Chapter 1: System Description ................................................... 4 Function and Theory ................................................................. 4 System Components ................................................................. 5 Chapter 2: System Installation .................................................... 6 Chapter 3: System Op

• Geotech Marschalk 94000, 2 NOTE DOCUMENTATION CONVENTIONS This manual uses the following conventions to present information: An exclamation point icon indicates a WARNING of a situation or condition that could lead to personal injury or death. You should not proceed until you read and thoroughly understand the WARNING message. A raised hand icon indicates CAUTION information that relates to a situation or condition that could lead to equipment malfunction or damage. You should not proceed until you read and thoroughly understand the CAUTION message. A note icon indicates NOTE information. Notes provide additional or supplementary information about an activity or concept.

• Geotech Marschalk 94000, 3 In order to ensure that your Marschalk Compressor has a long service life and operates properly, adhere to the cautions below and read this manual before use. Read and understand the information contained in this manual and the included compressor manufacturer's manual before operating unit. This unit operates from a 12-volt DC power supply only. Do not operate in rain. Observe polarity (Black Neg. /Red Pos.). Compressed air can cause serious injury. Always direct air stream away from personnel. Wear eye protection. All compressors and engines generate h

• Geotech Marschalk 94000, 4 Chapter 1: System Description Function and Theory Congratulations on your purchase of Marschalk’s System 1 portable 12 volt D.C. oil-less compressed air system. The design of this unit has evolved over a ten-year period during which continuous field-testing and user input have provided important design criteria. The unit sets standards for quality, reliability, and portability in a compressed air package for groundwater monitoring. It is one of the very few packages available today that is designed and built specifically to meet the needs of the Low Flow sampling method. Unlike other "tire infla

• Geotech Marschalk 94000, 5 System Components The following components and equipment are provided as part of the 94000 package:  A continuous duty oil-less air compressor capable of operating at an output pressure of 90 psi, with an air delivery rate of 0.4 scfm @ 90 psi, 0.65 scfm @ 50 psi, and 1.25 scfm @ atmospheric pressure.  The air compressor package includes a 3 gallon air storage tank, with drain petcock, for smoothing out air delivery, reserve air needed to maximize bladder pump cycle times, and more efficient pumping of deeper wells. The air storage tank is provided complete

• Geotech Marschalk 94000, 6 Chapter 2: System Installation 1. Turn the red-handled operating lever located on the side of the pressure switch to the “Off” position. 2. Connect the BLACK alligator clip on the end of the power cable to the NEGATIVE terminal of the battery. 3. Connect the RED alligator clip to the POSITIVE terminal of the battery. 4. RED = POSITIVE; BLACK = NEGATIVE 5. This is a standard connection for 12 volt D.C. power, and is found on virtually every vehicle battery. 6. Close the ball valve located on the discharge side of the air storage tank (handle perpendicular to the bo

• Geotech Marschalk 94000, 7 Chapter 3: System Operation During actual operating time, the compressor uses 22 amp/hrs of current. (160 amps required to start a momentarily stopped rotor) Therefore, it is recommended that a marine deep cycle or vehicle battery be used to operate the unit. The automatic operation of the unit from the pressure switch should minimize the actual power consumed during sampling of wells. For instance, users have advised us that when performing Low Flow purging and sampling in accordance with Marschalk’s

• Geotech Marschalk 94000, 8 Low Flow Purging and Sampling The Model 94000 12 vdc compressor has been designed for Low Flow purging and sampling. The unit will operate most efficiently where long pump cycles are used. If your target flow rate is 200 mls/minute, use 2 x 30 second pump cycles per minute. Water should be discharged during the entire duration of each pump cycle. For 100 mls/minute flow rate, use 1 x 1 minute pump cycle. If Low Submergence operation of the pump controller is necessary, longer pump cycles become even more important, as the vacuum used during the enhanced fill cycle is created by compressed air from the compressor. When using Low Submergence, keep the enhanced fi

• Geotech Marschalk 94000, 9 Chapter 4: System Maintenance Although the unit requires little maintenance, there are a few things that need attention on any piece of equipment, particularly an air compressor. Keep the air storage tank drained during operation of the compressor. The higher the compressor’s duty cycle is, the more often the tank should be drained. To drain the tank, simply open drain petcock on the bottom of the air tank for a few seconds, then close the petcock. Periodically check for loose hardware and tighten as necessary. This includes all nuts and bolts used to hold the unit together. Make sure

• 10 Chapter 5: System Specifications Horse Power 1/6hp Voltage 12VDC Running Amperage 22 Amps Starting Amperage 160 Amps Storage Capacity 3 Gallons Max Pressure 100 PSI SCFM @ Atmosphere 1.25 SCFM @ 50 PSI 0.65 SCFM @ 90 PSI 0.40 Case: Height 12 in Length 24 in Width 20 in Tank: Height 8-1/2 in Length 24-1/4 in Width 8-1/2 in Compre

• Geotech Marschalk 94000, 11 Chapter 6: System Schematic Check Valve SS Hose Air Filter Handle 12vdc Motor Pressure Switch Air Out Off/Auto Air Tank Compressor Head Pressure Relief Tank Drain Gauge Valve Starter Solenoid

• Geotech Marschalk 94000, 12 Chapter 7: Replacement Parts Power Cable 11200479 Black Battery Clip 11350006 Red Battery Clip 11350007 Air Compressor w/ 12 V motor 17250017 Air Tank 17250018 Pressure Gauge 17250019 Starter Solenoid 17250020 Pressure Switch 17250021 Ball Valve 17250022 Check Valve 17250024 Rubber Feet 17250026 Stainless Steel Hose 27250003 Wellhead Hose 51150058 Air Supply Hose 51150059 Air Supply Hose Inline Filter 11150238 Hose Adapter 51150060 Carrying Case 77250012

• 13 The Warranty For a period of one (1) year from date of first sale, product is warranted to be free from defects in materials and workmanship. Geotech agrees to repair or replace, at Geotech’s option, the portion proving defective, or at our option to refund the purchase price thereof. Geotech will have no warranty obligation if the product is subjected

• Geotech Marschalk 94000, Geotech Environmental Equipment, Inc 8035 East 40 th Avenue Denver, Colorado 80207 (303) 320-4764 ● (800) 833-7958 ● FAX (303) 322-7242 email: [email protected] website: www.geotechenv.com

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