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Ideally, the respiratory and metabolic variables (tv, rr, ve, vo2, vco2) generated by simulators should be no different from those produced by humans. The simulators produce and control these variables very precisely. Therefore, any intro-respiratory or hybrid metabolic measurement system can be tested with high precision and complete confidence。
Metabolite calibration uses mass preservation principles to generate known vo2 and vco2. The quality maintenance principle provides that the selected co2 and o2 quality flows remain unchanged regardless of the degree of aerobic dilution (i. E., the minute ventilation that is transported to the system at school)。
This top-level metabolic calibration gas drop-down device consists of a mass flow controller capable of providing any fixed point flow (~21% co2,79% n2) of the gas within 0 - 20 litres/minute stpd and a set point module (spm) capable of selecting the required mass flow。
The four vo2 settings selected by the switch are vo2 and vco2 per minute for 1, 2, 3 and 4 litres. The exact value (model 17057) will depend on physical parameters such as air pressure, air temperature and relative humidity. The available o2cal. Xls spreadsheet software allows accurate determination of the metabolic rate selected and the percentage error of the calibrated metabolic measurement system。
The remaining two positions of the rotation switch correspond to any required mass flow selection from zero to 4 l/min (model 17057 to 5 and 6 l/min) in a zero flow setting and in a series of 10 loops of electrometers。
Metabolite calibration accuracy is +/-1% vo2 and vco2。
Most flow sensors are usually calibrated using a fixed-capacity manual syringe, but very little is known about the performance of the flow sensor throughout the physiology。
The equipment includes a mass flow controller to produce accurate metabolic calibration gas mixtures to verify vo2 and vco2. It provides the highest accuracy and easy to adjust characteristics。
So, when you calibrate flow sensors at unknown manual impulse speeds, and then use them for low-flow paediatric or static measurements or high-flow vo2max measurements, how does this affect the accuracy of your air flow measurements (which ultimately are vo2)
Wek - 17056 respiratory metabolism simulator, wek - 17056 metabolism simulator application:
Generate accurate simulations of vo2 and vco2 to verify the overall accuracy of metabolic measurement systems and their software。
Check the accuracy of any flow/volume measurement equipment. Simulate breathing at 6 to 80 breaths per minute。
Examination of the effects of gas mixtures on flow sensors
Simulate breathing at 6 to 80 breaths per minute。
Examination of the effects of gas mixtures on flow sensors
Wek-17056 metabolic simulator product specifications:
17056 process volume accuracy: +/- 2%
Type 17057 alluvial volume accuracy between 600cc and 5000cc = +/- 1/2%
Between 300cc and 600cc = +/-1 to 2%
Not recommended less than 300cc
Electric speed varies from about 6 to 80 paces per minute。
Number: breaths per minute
Calibrating gas quality and volume flow
Air pressure
Temperature
Process volume (preset slot) for model 17056
0. 5, 1. 0, 1. 5, 2. 0, 2. 5 and 3. 0 litres
17056-4l flushing
1. 0, 1. 5, 2. 0, 2. 5, 3. 0, 3. 0, 4. 0 litres
Type 17057 per flush output
1. 0, 2. 0, 3. 0, 4. 0, 5. 0 litres
(other volume settings may be provided under special orders)
#17056 dimension: 12 inches (31 cm) wide x 16 inches (41 cm) high x 29 inches (74 cm) long
Electricity: 110 / 220 vac (specify)
Weight: approximately 40 pounds (18 kg)
A metabolic calibration gas containing 20. 9% co2 is required with a balance of n2。
Includes an excel file that allows you to automatically perform the required btps/stpd correction and print the calibration report。
Other possible uses of the equipment:
This motor-driven calibration syringe will check the accuracy and repetitivity of any flow sensors in the range 3 to 240 l/min ve。
Any mixture of two gases, andChanges the mixture immediately。
(the diluted mixer can be obtained from vacumed)
Generate custom low o2 mix objects
Simulation of highland training。
Quality control of flow/volume sensor equipment