TABLE OF CONTENTS CONTENTS PAGE I. INTRODUCTION Optos Metering Pumps Principles of Operation Materials of Construction About This Manual A Guided Tour of Optos Metering Pumps Specifications Stainless Steel Pump Specifications PEEK Pump Specifications Hastelloy C-276 Specifications II. INSTALLATION What You Will Need The Unit Tools Unpacking and Location...
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Viewing the EPROM Revision Level Advanced Screens Setting the Home Position Offset Setting the Output Function Setting the High/Low Pressure Limit Shutdown Setting the Motor Stall Shutdown Setting the Error Delay Setting the Save State Setting the Save in Run Flow Rate Setting the Contact Closures during Remote Analog Mode Viewing the Stroke Length Zeroing the Pressure Transducer...
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CAUTION: The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. ATTENTION: Le point d’exclamation dans un triangle equilatéral signale à alerter l’utilisateur qu’il y a des instructions d’operation et d’entretien tres importantes dans la litérature qui accompagne l’appareil.
INTRODUCTION Laboratory and industrial procedures often require metering precise amounts of fluids in a controlled and reproducible manner. Optos pumps were developed in response to this need. These pumps are capable of delivering measured amounts of fluids against significant backpressure. Pump Features Include: Piston wash chamber for backflushing piston to extend seal life.
A Guided Tour of the Optos Metering Pumps Front Panel As you look at the front panel of your Optos Metering Pump (Figure 1.1), you will see: Component Details Local Interface: Liquid Crystal Display (LCD). Displays flow rate, pressure (with optional pulse damper), other allowed functions.
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Figure 1.1: Front View of Optos Figure 1.2: Rear View of Optos...
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An Overall Look at the Local Interface Operation of the Optos Pump is controlled from a series of menus and there is no need to remember esoteric control codes or command sequences. A detailed description of the menu sequence is given in Section III. As you look at the local interface (Figure 1.3), you will see: Component Details Status LEDs: Upper green LED indicates pump is running;...
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Menu Schematic The menu schematic indicates the general structure of the menu map. The specific screens shown may vary from your specific configuration (e.g., pressure is only displayed and high and low limit settings are only available on the Plus versions). Basic Screens MAIN Read/set flow...
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& Δ Configuration Screens: DISPLAY MENU Adjust Set piston & compressibility materials of COMPRESS: HEAD: compensation pump Set remote Send piston to control forward position REMOTE: GO HOME: HIT RUN configuration Set refill:output View EPROM ratio level REFILL: FULL OUT VERSION: X.XX Advanced Screens: Δ...
INSTALLATION What You Will Need The Unit A Optos Pump consists of the pump assembly, a fittings kit for tubing connections (except for ¼” piston stainless steel pumps, which have fittings attached to the valves), a syringe (except ¼” pumps), a power cord, this manual and warranty card.
connector; this will open the lower port of the I/O connector. Insert the wire (strip wires by between 1/8” to ¼”) and release the upper port lever. Inputs The Optos can be remotely controlled from devices which can send current loop or voltage signals. In addition, the Optos can be remotely controlled using contact closures.
trickle of helium during solvent use. Some users blanket the reservoir with helium after sparging (pressurize reservoirs to about 3 psi with helium). Solvent Filtration You must filter your solvents. We recommend you install a 10 micron sintered stainless steel filter (P/N 5776) on the inlet line.
Using the Piston Wash system The use of buffers or solutions which crystallize when exposed to air can lead to abrasion of the piston seal. Optos pumps have a built-in wash chamber. The wash system is designed to flush the back end of the primary piston seal.
OPERATION Basic Operation Optos pumps perform more reproducibly if there is some degree of backpressure (preferably at least 25 psi). In all cases, outlet resistance must exceed inlet pressure. Otherwise, the fluid will simply flow through the pump without being metered. If the system in which the pump is being used does not generate enough backpressure, we suggest you install a device, e.g., a “dummy”...
press the Δ key twice. Use the arrow key to increase or decrease the low pressure limit. To MENU DOWN return to the main screen, press the key. DISPLAY When the low pressure limit is violated, the pump stops running, the lower red LED lights and the display shows LO PRESS XXXX.
You may have occasion to wish to change the piston and/or liquid end type to change the flow rate range or material of construction. To change the liquid end type, hold the key and press the Δ DISPLAY MENU & press Δ Hold DISPLAY MENU...
To change the home position offset setting, hold the Δ key and press the key (from the main MENU DISPLAY display), or, when in the advanced screens press the Δ key to display the “home offset” screen. Use the MENU arrow key to change the home offset setting.
Setting the Error Delay When an error occurs, the red light is illuminated. If the motor stall Hold Δ & press MENU DISPLAY shutdown is set to ON, the pump will from main display, press Δ MENU stop pumping. These occur keys to set DOWN Press...
Setting the Contact Closures during Remote Analog Mode Normally, the contact closures start and stop are used in conjunction with the Hold Δ & press MENU DISPLAY local keypad. The keypad is used to set from main display, press Δ MENU keys to set the flow rate and the start and stop...
A 10 micron sintered stainless steel filter is available from Eldex (Part No. 5776) and is suitable for most applications. When you need to avoid metal, a 10 micron plastic filter is available from Eldex (Part No. 1279).
MAINTENANCE We have designed Eldex Metering Pumps to give years of trouble-free service. By following a few simple maintenance procedures, you can ensure the longevity of your pump. Cleaning Before cleaning your pump, disconnect the pump from the power supply. Cleaning can be accomplished by wiping down with a damp cloth.
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Cleanliness is very important for optimal seal and check valve operation. Note suggestion regarding seal “break-in” on page 15. NOTE: If you retain the tools supplied with Eldex Part Nos. 5911, 5941, or 5944, you can purchase just the seals and re-use the tools.
Replacing Valves Always replace valves in a clean area to prevent dust and dirt from entering the pump. Removal of Existing Valves The valves are the two hexagon-shaped components on the liquid end assembly (see Figure 4.4). Inlet valves can be distinguished from outlet valves by the groove on the hexagonal part of the valve. Remove the valves with a ½”...
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Reassemble the valve by placing the valve insert in the valve housing using the larger (3/16”) dowel pin provided (1373 and 1374 valves use a total of 3 washers, one is installed before installing the valve insert). Make sure it is oriented correctly (see Figure 4.4). Press a CTFE seal into place. Slide the valve cartridge into the valve housing making certain it is oriented correctly.
Troubleshooting Symptom: No flow (probably cause(s) shown in bold) Question Answer Solution Is the motor turning? Check electrical connections: Is instrument plugged in? Does outlet provide electricity? Is fuse blown? If so, replace. Is fluid degassed prior to use? Degass fluid prior to use: Boil.
Optos SPARE PARTS AND ACCESSORIES For 3/32” Stainless Steel Pumps Order Description Preventive Maintenance Kits Includes two PTFE piston seals, tools for installation, two valve cartridges, one retainer/wash, a sintered stainless 5918 steel filter. Piston Seals 5911 Piston seal assembly kit; includes one PTFE seal, and tools for installation. 5912 Piston seal replacement kit;...
For 1/8” Stainless Steel Pumps Order No. Description Preventive Maintenance Kits Includes two PTFE piston seals, tools for installation, two valve cartridges, one retainer/wash, a sintered stainless 5920 steel filter. Piston Seals 5941 Piston seal assembly kit; includes one PTFE seal, and tools for installation. 5942 Piston seal replacement kit;...
For 1/4” Stainless Steel Pumps Order No. Description Preventive Maintenance Kits Includes two PTFE piston seals, tools for installation, two valve cartridges, one retainer, a sintered stainless steel 5922 filter. Piston Seals 5944 Piston seal assembly kit; includes PTFE seal, and tools for installation. 5945 Piston seal replacement kit;...
For 3/32” PEEK Pumps Order No. Description Preventive Maintenance Kits Includes two uhmw polyethylene seals, tools for installation, two valve cartridges, one retainer, a sintered stainless 5923 steel filter. Piston Seals 5914 Piston seal assembly kit; includes one uhmw polyethylene seal, and tools for installation. 5915 Piston seal replacement kit;...
For 1/8” PEEK Pumps Order No. Description Preventive Maintenance Kits Includes two uhmw polyethylene seals, tools for installation, two valve cartridges, one retainer, a 10 micron plastic 5924 filter. Piston Seals 6007 Piston seal assembly kit; includes one uhmw polyethylene metal-free seal, and tools for installation. 6008 Piston seal replacement kit;...
For ¼” PEEK Pumps Order No. Description Preventive Maintenance Kits Includes two uhmw polyethylene seals, backup washers, tools for installation, two valve cartridges, one retainer, a 5925 10 micron plastic filter. Piston Seals 6010 Piston seal assembly kit; includes one uhmw polyethylene metal-free seal, backup washer, and tools for installation. 6011 Piston seal replacement kit;...
For 1/8” Hastelloy C-276 Pumps Order No. Description Piston Seals 6048 Piston seal assembly kit; includes one PTFE seal, and tools for installation. 6100 Piston seal replacement kit; includes two PTFE seals, no tools.. 6101 Piston seal replacement kit; includes five PTFE seals, no tools.. Valves 6045 Inlet valve assembly, cartridge style, 1/8"...
APPENDIX RS232 An RS232C modular jack (connector is RJ-11) is on the rear panel. It is configured for 9600 baud, 8 data bits, 1 stop bit, and no parity. Pinout is: RJ 11 Pin Function DB 9 pin 1,6 (white, purple) Ground 2 (black) DSR (Input)
Reset Command buffer Warranty Eldex products are guaranteed against manufacturing defects for one year from the date of shipment. Parts and labor are both covered under the warranty. Seals, valves, and other disposable items are not included in the warranty. The warranty does not apply when there has been obvious misuse or mistreatment by the user or when damage has been caused by attempted repairs by the user.
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