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Model EG-1 Econo Gradient Monitor

This conductivity monitor is essential for optimizing protein purification methods and confirming the efficiency of chromatographic separations. It includes an external flow cell and is capable of real-time monitoring of conductivity in Siemens units and custom-scaled monitoring of gradient progression.

Model EM-1 Econo UV Monitor
Econo UV Monitor (Model EM-1)

The model EM-1 Econo UV monitor is a single-wavelength coldroom compatible detector for flowthrough monitoring of effluents from chromatographic columns, centrifugation gradients, and the like. The optics module includes both 254 and 280 nm filters and a 2 mm pathlength flow cell.

Model 2110 Fraction Collector
Model 2110 Fraction Collector

The Model 2110 fraction collector is a carousel-type fraction collector capable of collecting from 1 drop (~50 µL) to 9 mL fractions in 80 test tubes or microtubes. Collection can be in time, drop or volume mode when connected to the Model EP-1 Econo pump, BioLogic LP system or BioLogic DuoFlow system. Small chromatography columns can be mounted to drop forming arm to minimize dead volume. It is coldroom compatible.

Model EP-1 Econo Pump
Model EP-1 Econo Pump

The pump is a two-channel, bidirectional, variable speed peristaltic pump for low pressure chromatography or for pumping liquids in general laboratory procedures. It is capable of flow rates ranging from 0.01–20 mL/min (depending on tube diameter) and a maximum backpressure of 30 psi (2 bar, 0.2 MPa). The system can be hooked up to the Model 2110 or BioFrac Fraction Collectors and is coldroom compatible.

Bio-Rad's extensive line of chromatography products includes the Econo gradient pump and Model EP-1 Econo pump for protein preparative applications.

Econo Gradient Pump
The unique Econo gradient pump is suited for any low-pressure protein purification system. It is the only stand-alone peristaltic pump capable of isocratic and gradient elution applications. The Econo gradient pump is a two-channel bidirectional pump that is ideal for preparative applications and for scaling up the purification of recombinant proteins. The Econo gradient pump works seamlessly with other peripherals such as chart recorders, Model 2110 and BioFrac fraction collectors, Model EM-1 Econo UV monitor, and Model EG-1 Econo gradient monitor. Configure the system according to your needs and budget using the Econo gradient pump combinations as a starting point. Flow rates of 0.002–40 ml/min per channel (up to 20 ml/min per channel and two channels per pump) and ≥2 μl/min are achievable with the optional splitter valve kit.

Key features:

  • Control of a gradient mixer for binary gradient formation
  • Simple setup and programming, including gradient programming in either time or volume mode
  • Stop/start control of fraction collectors; hold and pause available with certain collector types
  • Stop/start, pen up/down control of chart recorders
  • Automated calibration procedures for a variety of tubing sizes
  • Luer fittings for inexpensive, simple, and fast tubing connections
  • User-adjustable LCD screen contrast, revolution counter to determine tubing wear, and keypress confirmation beep
  • Integrated, space-saving rack
  • Compatability with BioLogic DuoFlow chromatography systems

Model EP-1 Econo Pump
The patented Model EP-1 Econo pump is a two-channel, bidirectional, variable-speed peristaltic pump for low-pressure chromatography or for pumping liquids in general laboratory procedures. It offers a full range of features as a stand-alone peristaltic pump and is fully compatible with the BioLogic DuoFlow system.

Key features:

  • Flow rate display (in ml/min) and time or volume control of programs
  • Preset calibration for common tubing sizes (0.8, 1.6, and 3.2 mm ID)
  • Manual calibration for nonstandard-size tubing or when improved flow rate accuracy is desired
  • Control of Model 2110, BioFrac, or other fraction collectors
  • Control of run length with programmable total run volume
  • Control of SV-3 solenoid diverter valve to divert eluent to fraction collector or waste
Econo™ Gradient Pump  
Flow range 0.1–40 ml/min
Maximum counterpressure 30 psi (2 bar)
Gradient formation Solenoid-activated proportioning valve
Detection Performance  
UV Single channel, 280/254 nm with auto zero
Conductivity Detection range: 0.5–500 mS/cm FS
Temperature range 4–40° C
Sample loading Manual loop fill
Technical Specifications:
Econo Gradient Pump Kits
 
Flow rate limit 20 ml/min per channel; dual-channel peristaltic pump
Pressure limit 30 psi (0.2 MPa)
UV detection Optional Model EM-1 Econo UV monitor; 254 and 280 nm filters
Conductivity Optional Model EG-1 Econo gradient monitor
Buffer selection/large sample loading Optional SV3-2 valve
Sample injection Optional MV-6 valve
General fraction collection BioFrac™ or Model 2110 fraction collector
Large-volume fraction collection BioFrac fraction collector with optional prep adaptor
Small-volume fraction collection BioFrac or Model 2110 fraction collector
Solvent compatibility All commonly used chromatographic solvents
Operating temperature 4–40° C
Dimensions (W x D x H)  14 x 20 x 20 cm (5.5 x 7.9 x 7.9")
Weight 3.5 kg (7.7 lb)
Model EP-1 Econo Pump  
Number of channels 2
Flow rate range (per channel) 0.01–20 ml/min (depending on tubing)
Tubing diameter 0.8–3.2 mm ID
Maximum backpressure 30 psi (2 bar)
Output signal TTL compatible (~0–5 V active low)
Operating temperature 4–40°C; coldroom compatible
Material of construction  Polypropylene and other solvent-resistant plastics 
Safety Meets IEC 61010 and CSA 22.2 certification
Dimensions  14 x 20 x 22 cm (5.5 x 7.9 x 8.7") with pumphead 
Model EP-1 Econo Pump

731-8140EDU
100/120 V, stand-alone peristaltic pump for low-pressure chromatography or pumping liquids, compatible with BioLogic DuoFlow system; education use only

List Price:   $2,349.00
EDU Price:   $1,879.20   What is this?
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(Discontinued) Model EP-1 Econo Pump

731-8142EDU
220/240 V, stand-alone peristaltic pump for low-pressure chromatography, compatible with BioLogic DuoFlow system; education use only

This product is no longer available. Please contact technical support for more information on replacement product.
Econo Gradient Pump Kit

731-9001EDU
120 V, two-channel bidirectional pump, for use in any low-pressure protein purification system, includes tubing and fittings kits; education use only

List Price:   $3,825.00
EDU Price:   $3,060.00   What is this?
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Econo Gradient Pump

731-9002EDU
220 V, two-channel bidirectional pump, for use in any low-pressure protein purification system, includes tubing and fittings kits; education use only

List Price:   $3,825.00
EDU Price:   $3,060.00   What is this?
Quantity:   Add to cart
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Number Description Options
M7318140 Instruction Manual, Model EP-1 Econo Pump, Rev J Click to download
4006161 Instruction Manual, Econo Gradient Pump, Rev B Click to download
4006175 Instruction Manual, Econo Gradient Pump Quick Reference Guide, Rev A Click to download
2438 Econo Gradient Pump Brochure, Rev A Click to download