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Pulseless, reproducible flows from 0.01
µL/min. |
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Modular design, suitable for applications
including capillary HPLC, bio-separations, LC-MS, FIA, process control. |
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Integrated design for minimized system
volumes. |
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The MicroPro achieves precise,
pulseless fluid delivery at flow rates as low as 0.01 microliters per minute (gradient
flow rates as low as 1 microliter per minute). By taking a system wide approach to
developing the MicroPro, we have been able to produce a fully integrated system,
incorporating aspects critical to low flow rate work such as temperature control and
minimized system volume.
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The
MicroPro pump system has been designed with maximum modularity, making it possible to
configure to your specific needs with minimal impact to your budget.
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A
single MicroPro pump can control up to three other MicroPro pumps, whether for purposes of
running gradients, for operating the pumps in multi-independent mode, or for operating the
pumps in reciprocating mode.
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Pulseless
Flow |
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One of the key
advantages of the MicroPro pump's syringe-based design is the ability to deliver flow
without pulsation. Consequently, detector sensitivity can be increased for
trace-level detection.
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The optimized
syringe sizes and micro-stepping stepper motor (each micro-step is equivalent to 0.1
nanoliters) result in unmatched flow reproducibility.
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Advanced
Pre-pressurization, versatile flow programming |
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MicroPro pumps
utilizes advanced software, which automatically and rapidly ramps to the operating
pressure at the entered flow rate.
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The MicroPro pump
can be programmed for both positive and negative flow rates. In addition, ramping
flows is as simple as entering two end points. The MicroPro can also be programmed
to run the the constant pressure mode instead of the constant flow mode, or even
programmed to ramp pressure or to generate pressure gradients.
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Syringe,
Valve, and Pressure Transducer Options |
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Two syringe sizes
are available, 2mL and 10mL, each tailored to specific flow requirements.
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Several valve
options are available for the MicroPro pump system to meet your application's specific
requirements. For applications requiring the greatest precision, high pressure
active valves are available, while for less demanding applications, mechanical passive
valves are available at a lower cost.
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The pressure
transducer provides the ability to set pressure limits, operate in constant pressure mode,
and enable the pre-pressurization software. These advanced features add to the
flexibility and safety of the MicroPro system and there are several pressure transducer
ranges available to meet your specific control requirements.
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Temperature
Control |
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At extremely low
flow rates, small variations in temperature can dramatically affect flow stability.
For this reason, the MicroPro pump has optional temperature control of the syringe which
is strongly recommended when the highest level of precision is required.
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ensures accurate and reproducible gradients. The design of conventional pumping
systems limits their ability to generate gradients at very low flow rates. The
MicroPro is designed specifically for low flow rates, utilizing optimized syringe sizes
and dynamic mixing chambers, resulting in thoroughly mixed, precise gradients.
Specially designed
micro-mixers with volumes as low as 15 µL provide dynamic mixing throughout the range of
gradient flow rates. The interchangeable mixer cartridges, providing up to three
stage mixing, are ideally suited for thorough mixing of a wide range of solvents.
For applications with gradient flow rates below 5 µL/min., multi-stage static mixers are
available (mixer volume of 5 µL). |
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Independent
or Reciprocating Operation |
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You can use your
MicroPro pump to control the flow rates of up to four pumps, operate them at different
flow rates and feed their output to a common stream. Of course, you can program each
pump to change flow rates at different times, run at negative flow rates, or ramp flow
rates; in short, the MicroPro provides full featured control of additional syringes.
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You can achieve the
advantages of continuous output as well as pulseless delivery by purchasing the
reciprocating version of the MicroPro. While one syringe is delivering fluid, the
other is refilling. Advanced software minimizes the transition between syringe
outputs.
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Continuous
flow gradient systems |
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The need to refill syringes is
sometimes a disadvantage in gradient chromatography. Our patented,
innovative TLD (Transitional Liquid Delivery) syringe can be added to a
gradient MicroPro system, producing a system with continuous flow.
The TLD will deliver to the system while the gradient syringes are
refilling. Adding the TLD syringe can decrease turnaround time
between runs and increase sample throughput.
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Specifications: |
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System Features:
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No. of
syringes controlled: 4 |
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Modes of
operation: single
syringe, reciprocating, constant pressure, gradient. |
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Wetted
Parts: 316 stainless steel, uhmw polyethylene,
PEEK. |
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Syringe
Sizes: 2 mL or 10 mL. |
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Position
Sensors: 2. |
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Pump
Features:
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Flow
Rate: 2 mL
syringe: 0.01 - 2,000 µL/min.;
10 mL
syringe: 0.05 - 10,000 µL/min. |
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Flow
Reproducibility: ±.5%
typically. |
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Set
increment: 0.01
µL |
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Refill
Time: Minimum:
30 seconds, rate and time programmable. |
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Maximum
Pressure: 2 mL
syringe: 10,000 psi (or to limit of valves); 10 mL
syringe: 5,000 psi (or to limit of valves). |
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Gradient
Flow Rate: 2 mL
syringe: 1 µL/min;
10 mL
syringe: 5 µL/min. |
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Gradient
Resolution: 1%. |
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Gradient
Reproducibility: ±.5%
typically. |
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Program
Features:
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No. of
steps: 200 (20 per
file).
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No. of
files:
10 |
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No. of
cycles: 999 |
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General
Features:
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Dimensions
(DxWxH): Single:
36 cm x 16 cm x 44 cm (14.2 in x 6.3 in x 17.3 in); Dual:
36 cm x 34 cm x 44 cm (14.2 in x 13.4 x 17.3 in). |
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Weight:
Single:
16 kg (35.27 lbs); Dual:
30 kg (66.14 lbs).
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Electrical:
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Voltage/Frequency:
100/120/230VAC/50-60Hz. |
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VA rating: 200.
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Fuse: 2.5 A (100-120VAC); 1.25 A (230VAC).
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Remote:
Start,
stop, hold, 6 contact closures, RS232. |
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Back
to Top |
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| Eldex |
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Eldex
Laboratories, Inc. |
Telephone: |
(707)
224-8800 |
|
30 Executive
Court |
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(800)
969-3533 |
|
Napa, CA
94558-6278 |
Fax: |
(707)
224-0688 |
|
USA |
email: |
sales@eldex.com |
|
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©Eldex Laboratories,
Inc. |
