Citrex All-In-One Gas Flow Analyser

Tests all commonly available ventilators (adult, pediatric, neonatal and high frequency etc).

  • Accurate Bi-directional flow
  • Colour OLED display with real time graphics
  • Compatible with 13 gas standards and 7 gas types
  • Battery powered and ergonomic housing
Citrex Hand-Held All-In-One Gas Flow Analyser
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Citrex Hand-Held All-In-One Gas Flow Analyser

The Citrex hand-held all-in-one gas flow analyser designed to quickly and accurately test the functionality of ventilators and anaesthetic machines. Despite it’s compact design, the Citrex is compatible with all common gas standards and gas types. The battery operated Citrex accurately measures flow, volume, oxygen, temperature, high and low pressure, differential and barometric pressure.

State of the art measuring methods allow for extremely precise, and low resistance bidirectional flow measurement able to test virtually all models of ventilators (adult, pediatric, neonatal and high frequency etc.). The Citrex is compatible with Air, Air/O2, N2O/O2, Heliox (21 % O2), He/O2, N2 and CO2 gas types

A high resolution OLED colour display gives the CITREX it’s unique appearance in the market and provides for a simple and intuitive user interface. Test data can be stored on the Citrex for download and analyses whilst additional interfaces offer control options for the Citrex via USB, RS-232, Ethernet, CAN, Analogue Out and TTL connection.

The optional O2 sensor provides fast and precise measurement of oxygen concentration, an important function when verifying and calibrating
ventilators. This option is available for new devices or can be acquired subsequently as a retrofit set. 

Citrex Hand-Held All-In-One Gas Flow Analyser

Technical Specification:

Flow and Pressure Measurements Range Accuracy
Flow ± 300 L/min ± 1.9 %* or ± 0.1 L/min**
Temperature compensated Yes  
Pressure compensated Yes  

 

Pressure    
High 0 .. 10 bar ± 1 %* or ± 10 mbar**
Differential ± 200 mbar ± 0.75 %* or ± 0.1 mbar**
Flow channel -50 .. 150 mbar ± 0.75 %* or ± 0.1 mbar**
Barometer 500 .. 1150 mbar ± 1 %* or ± 5 mbar**

 

Units    
Flow L/min, L/s, cfm, mL/min, mL/s  
Pressure bar, mbar, cmH2O, inH2O, Torr,  
  inHg, hPa, kPa, mmHg, PSI  
Other Measurements Range Accuracy
Oxygen, pressure compensated 0 .. 100 % ± 1 % O2**
Gas temperature 0 .. 50°C ± 1.75 %* or ± 0.5 °C**
Gas types Air, Air/O2, N2O/O2, Heliox
(21 % O2), He/O2, N2, CO2
 
Gas standards ATP, ATPD, ATPS, AP21, STP, STPH, BTPS, BTPD, 0/1013, 20/981, 15/1013, 25/991, 20/1013  
Ventilation Parameters Range Accuracy
Breath rate 1..1000 bpm ±1 bpm or ± 2.5 %**
Time Ti,Te 0.05 .. 60 s ± 0.02 s
Ratio

I:E

1:300 .. 300:1 ± 2.5 %*
  Ti/Ttotal 0 .. 100 % ± 5 %*
Volume VTi, Vte ± 10 L ± 2 %* or ± 20 mL**
Minute volume Vi, Ve 0 .. 300 L/min ± 2.5 %*
Peak flow Insp. / Exp. ± 300 L/min ± 1.9 %* or ± 0.1 L/min**
Pressure Ppeak, Pmean, PEEP, Pplateau 0 .. 150 mbar ± 0.75 %* or ± 0.1 mbar**
Compliance Cstat 0 .. 1000 mL/mbar ± 3 %* or ± 1 mL/mbar**
Volume trigger Adult, Pediatric, HFO flow or pressure at preset and at adjustable levels  
General Information
Color display Yes
Realtime curves Flow, pressure, volume
Interface RS-232, USB, Ethernet, CAN, Analog Out, TTL
Power 90 .. 260 VAC
Battery 4 hours
Dimension (w x d x h) 11.4 x 6 x 7 cm
Weight 0.4 kg
Calibration Annually
Memory card Yes
Approvals CE

Legend
The greater tolerance is valid:
* Tolerance related to the measured value
** Absolute tolerance

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