PROOX 110     (view literature)

silver-dot_1.gif

proOx 110Compact Oxygen Controller

Upgrade any Incubator or Chamber

  • Fit and control Oxygen in any
       semi-sealable chamber
  • Controls Hypoxia / Hyperoxia
  • For in vivo and in vitro applications

 

A VERSATILE OXYGEN TOOL
The ProOx P110 is a versatile and compact oxygen controller for O2 sensitive work. It fits any size chamber and will efficiently control O2 in any semi-sealable enclosure. Add a C-Chamber to control and validate oxygen inside the host chamber without disturbing your cells. With the feedback control system oxygen is quickly taken to setpoint and held there indefinitely. Disturbances are instantly detected and immediately corrected.

FULL RANGE PRECISE CONTROL
Control setpoint can be anywhere from 0.1-99.9% oxygen. The ProOx P110 senses oxygen inside the chamber and infuses either nitrogen to lower the concentration or oxygen to raise it.

WORKS IN ANY CHAMBER
The ProOx P110 fits and controls oxygen in any semi-sealable enclosure. Large, small, square, round, flexible, rigid, leaky, tight, manufactured or custom made. Most chambers can be fitted in minutes.

 

Handle any Oxygen Sensitive Research Protocol:

...where ambient air oxygen (21%) is too high or too low, the ProOx P110 can provide any other level you need.


...where ambient atmosphere is not air, the ProOx P110 can restore and maintain air-equivalent oxygen.


...where oxygen consumptive or generative processes need to be countered, the ProOx P110 can hold oxygen stable against destabilizing loads.

 

 

CONTROL IS EFFICIENT
Feedback from sensor tells the ProOx P110 exactly when and exactly how much gas to infuse. No gas is ever wasted!

OPERATION IS SIMPLE
Oxygen is quickly taken to desired setpoint and held there indefinitely. Any disturbances are immediately detected and corrected. Check calibration once in a while and don't run out of gas. Otherwise it's all automatic! It can work continuously year round or on occasion as needed. No other oxygen tool offers so much value!

It's not expensive and it's available now. Get More Information...

proOx2
Because no cell in the body sees 21% oxygen

 

 

 

 

OPERATION

OPERATION

PROVIDE GAS EFFICIENT O2 CONTROL
From outside the host chamber, the ProOx P110 works by remotely sensing the oxygen concentration inside the chamber and infusing either nitrogen to lower it or oxygen to raise it.

Installation is easy! Simply insert sensor and nozzle of infusion tube into chamber through any convenient passageway. Doors, windows, sample ports, access ports, holes (built-in or custom-drilled) all work.

 

Front Panel Interface

2proox
Precise, full-range (0.1-99.9%) oxygen control

All operators are conveniently located on the front panel, all connections are on the back panel and out of the way. Oxygen concentration at sensor continuously displays in bright green digits that can easily be read from across the room. Manual switch for gas provides convenient shut off. It saves gas when the chamber door is open. Just don’t forget to turn it back on! The alarm buzzer also has a manual switch.

Gas Usage

USE ANY GAS SUPPLY
ProOx P110 conveniently utilizes gas from any source. The best supply depends on consumption. Compressed gas is best in low consumptive applications. Generators are best in high consumptive applications. Liquids are best in between.

Typical Configuration

proOx schematics

INSTALLATION 

  1. Set ProOx P110 on or near host chamber and plug it in.
  2. Hook up sensor and gas infusion tube and insert both into chamber.
  3. Hook up gas supply.

Calibration

For easy calibration check, just pull the sensor out of the chamber and check it against room air (21%).

Double check it against the control gas (0% or 100%) with the handy bleed valve on the front panel if necessary. No third party oxygen analyzers needed.

proOxc CompactSize
       Compact design takes up little lab space

SAVE GAS - SAVE MONEY
Chamber gas consumption varies widely, but in every case the ProOx P110 always and absolutely minimizes consumption. That’s the nature of feedback control, it’s maximally efficient!

Gas costs are reduced to an absolute minimum.

PERFORMANCE

PERFORMANCE 

NORMOBARIC OXYGEN FEEDBACK CONTROL
ProOx P110 works in semi-sealable chambers. It controls chamber oxygen by forced displacement of gas inside chamber via dilution with either oxygen-rich or oxygen-poor control gas. Pressure inside the chamber stays the same as pressure outside.

Dilution is a logarithmic process. The further away from ambient, the slower it goes. Closed-loop control is efficient. By constantly monitoring chamber oxygen, it promptly gets to setpoint. It responds immediately to correct any disturbance. It automatically adjusts to different loads. In the process it uses the least amount of gas possible!

Day in and day out. Year after year!

 

Hypoxia Graph  

CONTROL GAS IS NITROGEN
Setpoints are 0.1-20.7% oxygen. The lower the set point: (1) the more time it takes to reach setpoint, (2) the more nitrogen it takes to reach setpoint, (3) the more nitrogen it takes to hold setpoint.

 Hyperoxia graph

SETPOINTS ARE 20.9-99.9% OXYGEN
The higher the setpoint: (1) the more time it takes to reach setpoint, (2) the more oxygen it takes to reach set-point, (3) the more oxygen it takes to hold setpoint.

 Power Graph

POWER IS A FUNCTION OF INFUSION RATE OF CONTROL GAS
The higher the infusion rate, the faster to setpoint. Above: infusion rate #4> #3> #2> #1. Infusion rate is a function of control gas supply pressure. The higher the pressure, the higher the infusion rate. Maximum 25 PSIG provides 35 SCFH.

 

 5 Control Scenario Graph

TIGHT EFFICIENT CONTROL DISPLAYED BY THE PROOX IN A REAL WORLD SCENARIO
  1. No control yet. Chamber oxygen is ambient air oxygen (21%).
  2. Control starts. Control gas is nitrogen. Infusion immediately starts to push oxygen down.
  3. Oxygen is taken to setpoint. How fast depends on infusion rate. Infusion rate is adjustable. The higher the infusion rate, the faster to setpoint (see graph above). Gas consumption in this phase is mostly a function of chamber size. The larger the chamber, the more gas it takes.
  4. Steady-state control at setpoint is established. Infusion of control gas exactly matches chamber leakage to hold oxygen level constant. Gas consumption here is mostly a function of chamber leakage. The leakier the chamber, the more gas it takes.
  1. Door of chamber is suddenly opened and closed. Steady-state is disrupted. In-rush of air is immediately detected and chamber oxygen is promptly returned to setpoint. Gas consumption depends on how wide and how long the door was opened. The more it’s disrupted, the more gas it takes to get back to setpoint.
  2. Door suddenly unlatches. Leakage goes up but ProOx P110 compensates and immediately re-establishes steady-state at setpoint. Gas consumption goes up dramatically, but oxygen is kept at setpoint. Consumption increases in proportion to leakage.
  3. Door gets shut tight. Leakage goes back down to normal. ProOx P110 compensates in opposite direction and re-establishes steady-state at setpoint. Gas consumption goes back down to normal levels, while oxygen stays put.

 

Read More >