RapidStill II MODEL 65200 INSTRUCTION MANUAL Product designs are subject to change without notice © 2002, 2010, 2013 Labconco Corporation 6544100 REV. D / ECO H435 Printed in U.S.A.
TABLE OF CONTENTS Preface Introduction Components Shipped General Description Performance Component Identification Installation Location Electrical Connection Water Connection Drain Connection NaOH Pump Connection Optional Water Inlet Kit Rear View of Standard RapidStill II Rear View of RapidStill II w/Optional Water Inlet Kit Installed Safety Precautions 1 2 3 4 4 10 10 10 11 11 12 13 14 15 Normal Operation Standard Operating Procedure 16 Routine Maintenance 17 Expendables 18 Cleaning 19 Servicin
TABLE OF CONTENTS Specifications 27 Wiring Diagram 28 Troubleshooting 29 References 31 Warranty 32 Shipping Claims 33 Accessories 34 Contacting Labconco 35
INTRODUCTION Components Shipped Carefully check the contents of the carton for damage that might have occurred in transit. Do not discard the carton or packaging material until all components have been checked against the following component list and the equipment has been installed and tested.
INTRODUCTION General Description The Labconco RapidStill II is designed specifically for the determination of macro concentrations of nitrogen. The RapidStill II performs rapid steam distillation from sulfuric acid digest prepared from nitrogen-bearing materials such as food products, feeds, grains, soils, plant tissue, wastewater effluent, organic wastes, etc. Sample digestions are accomplished using Labconco’s Rapid Digestor systems, described in the Accessories section of this manual.
INTRODUCTION Performance The RapidStill II produces steam by heating a 1 liter flask (boiler) with a 1200 watt heating element. Activation of the heater, the addition of water to the boiler, and the addition of NaOH to the sample are all controlled by switches on the front control panel of the unit. An electric timer on the control panel allows the distillation time to be set from 0 to 15 minutes. Typical distillation times range from 5 to 10 minutes.
INTRODUCTION Component Identification (Figure 2) (1) Boiler Water Switch. This momentary contact switch fills the boiler with water. It is interlocked to prevent its operation during the heating of the boiler. Water should never be added to the boiler when it is hot and low on water (less than ¼ full) or dry. Allow the boiler to cool before adding water. (2) Boiler Heater Switch. The boiler heater switch activates the boiler heating element.
INTRODUCTION Component Identification Figure 2 5
INTRODUCTION Component Identification (Figure 3) (10) Condenser Extension. The condenser extension is a replaceable glassware fitting that connects the condenser and distribution head. (11) Condenser. The RapidStill II is equipped with a combined Allihn and spiral condenser for efficient recovery of the distillate. (12) Ventilation Valve. The ventilation valve prevents the distillate from being aspirated back into the condenser after the distillation is completed.
INTRODUCTION Component Identification Figure 3 7
INTRODUCTION Component Identification (Figure 4) (18) Heater Cup Assembly. The heater cup assembly consists of the heater cup to support the boiler, and the heating element itself. (19) Boiler. The 1 liter boiler contains the boiling water that is the source of steam for the distillation. (20) Water Fill Valve. The valve dispenses water into the boiler when it is energized. The inlet of the valve is equipped with a filter screen, to prevent fouling with particulate matter. (21) Plastic Check Valves.
INTRODUCTION Component Identification Figure 4 9
INSTALLATION Location The RapidStill II should be located on a level work surface, adjacent to appropriate electrical, water and drain connections. Electrical Connection The electrical outlet should be rated for 115 VAC, 60 Hz, 15 Amps, and dedicated to the RapidStill II. Water Connection The feed water should be municipal drinking water grade and of sufficient quality to prevent or minimize scaling of the boiler. The feed water should have a minimum supply volume of 1 gallon (3.
INSTALLATION Drain Connection Using the supplied molded drain hose, connect and clamp the hose to the drain outlet located at the bottom of the drain pipe. The drain hose should be routed to an appropriate drain system, rated for a minimum capacity of 2 gallons (7.6 liters) per minute. The RapidStill II’s drain pipe is designed for gravity drainage. The drain hose and all connections must be below the level of the drain pipe outlet.
INSTALLATION Optional Water Inlet Kit With the purchase and installation of the Optional Water Inlet Kit, part #65442, two separate water supplies may be used to feed the RapidStill II; ordinary tap water may be used to supply the condenser while purified water is fed to the boiler. To function properly, the purified water source must be capable of delivering 1 gallon (3.8 liters) per minute at a minimum of 5 PSI. The purified water supply pressure should not exceed 20 PSI.
INSTALLATION Rear View of Standard RapidStill II Figure 6 13
INSTALLATION Rear View of RapidStill II with Optional Water Inlet Kit Installed Figure 7 14
SAFETY PRECAUTIONS The disposal of substances used in connection with this equipment may be governed by various federal, state or local regulations. All users of this equipment are urged to become familiar with any regulations that apply in the user’s area concerning the dumping of waste materials in or upon water, land or air and to comply with such regulations.
NORMAL OPERATION Standard Procedure (1) Turn on the cooling water, allowing it to flow through the condenser. The flow rate will be regulated to 1 gallon per minute (3.8 liters per minute). (2) Depress the ‘Boiler Water’ switch. Looking through the Boiler viewing slot, fill the boiler approximately 2/3 full, or to the top line of the flask. If the boiler fills too slowly, slightly increase the flow rate of the cooling water supply.
ROUTINE MAINTENANCE Under normal operation, your RapidStill II will require little routine maintenance. The following maintenance schedule is recommended: After Every Day (1) Rinse the caustic pump, its delivery system and the distribution head as follows: (a) Install a clean empty digestion tube in place. Remove the caustic supply tubing from the caustic vessel and place it in a vessel of purified water. (b) Turn on the cooling water and fill the boiler as described on page 16.
EXPENDABLES The following is a brief list of replacement parts: PART NO.
CLEANING Every day the caustic pump, delivery system and distribution head should be cleaned as described in the ‘ROUTINE MAINTENANCE’ section of this manual. Accumulated deposits or scale in the boiler may be removed by removing the boiler and washing it with a dilute solution of hydrochloric acid or a commercially available scale remover that is compatible with glass. USE APPROPRIATE PROTECTIVE SAFETY EQUIPMENT WHEN HANDLING CLEANING SOLUTIONS.
SERVICING THE RAPIDSTILL II Fuse Replacement (1) Unplug the unit from electrical service. (2) Using a small screwdriver or coin, turn the slotted fuse holder ¼ turn counterclockwise. (3) Pull the fuse and holder straight out. Remove the fuse from its holder by pulling the fuse straight out. Replace the fuse with a proper replacement part only. DO NOT attempt to replace the fuse with one of a higher amperage rating. (4) To reinstall the fuse, reverse the above steps.
SERVICING THE RAPIDSTILL II Heating Element Replacement (1) Unplug the RapidStill II. (2) Remove the boiler as described on page 20. (3) Remove the perforated screen surrounding the heating element by removing the three screws that secure it. (4) Disconnect the two heating element wires from the wiring harness by pulling the electrical connectors straight apart. Remove the ground wire from the bottom of the heater cup by pulling the wire straight down.
SERVICING THE RAPIDSTILL II Timer Replacement (1) Unplug the RapidStill II from electrical service. (2) Remove the four screws that secure the front panel on the base of the unit and pull the panel straight out. (3) Using an allen wrench, loosen the two set screws that secure the timer knob on its shaft. Pull the knob straight off. (4) Disconnect the electrical connections on the timer, noting the terminals’ orientation.
SERVICING THE RAPIDSTILL II Figure 8 23
REPLACEMENT PARTS ITEM QTY. 1 2 3 4 5 6 7 8 9 10 11 12 1 1 1 1 2 1 1 1 1 1 1 1 PART NO.
REPLACEMENT PARTS ITEM QTY. 13 14 15 16 17 18 19 20 21 22 23 24 2 1 1 2 1 1 1 1 1 1 1 1 PART NO.
DIMENSIONS Figure 11 26
SPECIFICATIONS Electrical Requirements: 115 VAC, 15 Amps, 60 Hz, single phase Heating Element: 1200 Watt, 115 VAC Boiler Capacity: 1 liter total volume, 750 ml operating volume Condenser Flow Rate: 1 gallon per minute (3.
WIRING DIAGRAM Figure 12 28
TROUBLESHOOTING PROBLEM CAUSES CORRECTIVE ACTION Unit will not operate at all Tripped circuit breaker Check facility’s circuit breaker Blown fuse Replace fuse Power cord not plugged in Plug in cord ‘Boiler Heater’ switch is on Turn off boiler heater before filling Cooling water off or flow rate insufficient Check flow rate of condenser cooling water Water fill valve plugged or defective Clean inlet screen of filter; replace valve ‘Boiler Water’ switch defective Replace switch Heating eleme
TROUBLESHOOTING PROBLEM CAUSES CORRECTIVE ACTION Water is noisy when flowing through the unit Excessive water flow rate Reduce the water flow rate slightly Steam drains erratically; steam valve is noisy during standby Drain hose is kinked or elevated above the drain pipe Drain hose must flow unrestricted to a drain below the drain pipe Boiling flask breaks Flask has gone dry Do not let flask go dry Water added when boiler Do not add water to the boiler is dry or low on water and when it is hot a
REFERENCES Rapid Kjeldahl Methodology for the Determination of Nitrogen in Paper Products. 1993. Labconco Corporation, Kansas City, MO. Rapid Kjeldahl Methodology for the Determination of Total Kjeldahl Nitrogen in Water. 1993. Labconco Corporation, Kansas City, MO. Methodology for the Determination of Alcohol in a Mixture by Direct Distillation. 1993. Labconco Corporation, Kansas City, MO. Methodology for the Determination of Ammonia in Water by Direct Distillation. 1993.
WARRANTY We are committed to providing our customers with quality equipment and service after the sale. Part of this objective involves keeping you informed of changes and new product additions. We, therefore, request that you take a moment to fill out the product registration card so we many know your location as well as some of the reasons that prompted you to purchase our product. Labconco provides a warranty on all parts and factory workmanship.
SHIPPING CLAIMS If shipment is received in visibly damaged condition, be certain to make a notation on the delivering carrier’s receipt and have his agent confirm the damage on your receipt. Otherwise, the damage claim may be refused. If concealed damage or pilferage is discovered, notify the carrier immediately and retain the entire shipment intact for inspection. Interstate Commerce Commission rules require that the claim be filed with the carrier within 15 days after delivery. NOTE: Do not return goods.
ACCESSORIES Accessory Part # Description 23080 Rapid Digestor - 4 Temperature control unit with indicator light, adjustable from ambient to 450°C and 4-place digestion unit designed for 250 ml digestion tubes (not included). 23012 Rapid Digestor - 25 Temperature control unit with light, adjustable from ambient to 450° and 25-place digestion unit designed for 250 ml digestion tubes (not included).
CONTACTING LABCONCO If you have any questions that are not addressed in this manual or if you need technical assistance, please contact Labconco’s Customer Service Department at 1-800-821-5525, Labconco’s Product Service Department at 1-800-522-7658 or either department at 1-816-333-8811, between the hours of 7:00 a.m. and 6:00 p.m. Central Standard Time.
