The CITREX H4 is in all-in-one test device ideal for biomedical engineers, independent service providers, and anesthesia and respiratory equipment manufacturers. It is designed to support various daily applications. It provides accuracy and reliability for testing multiple medical devices, including respiratory and anesthesia devices, oxygen flow meters, pressure gauges, and suction devices.
| Flow and pressure measurements | ||
| Flow | High Flow |
±300 L/min*** ±1.9 %* or ±0.1 L/min** |
| Measuring bidirectional | yes | |
| Temperature compensated | automatic | |
| Pressure compensated | automatic | |
| Humidity compensated | manually | |
| Pressure | ||
| High | PHigh |
0–10 bar ±1 %* or ±10 mbar** |
| Differential | PDiff |
±200 mbar ±0.75 %* or ±0.1 mbar** |
| Flow channel | PChannel |
-50–150 mbar ±0.75 %* or ±0.1 mbar** |
| Atmospheric pressure | PAtmo |
500–1150 mbar ±1 %* oder ±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 | ||
|
Oxygen (pressure comp. ≤ 150 mbar) |
O2 |
0–100 % ±1 % O2** |
| Gas temperature | Temp. |
0–50°C ±1.75 %* or ±0.5 °C** |
| Gas types | Air, Air/O2, O2, N2O, N2O/O2, CO2, N2, He/O2 | |
| Gas standards | ATP, ATPD, ATPS, AP21, STP, STPH, BTPS, BTPS-A, BTPD, BTPD-A, 0/1013, 20/981, 15/1013, 25/991, 20/1013, NTPD, NTPS | |
| Ventilation parameter | ||
| Breath rate | 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/Tcyc |
0–100 % ±5 %* |
|
| Breath volume | V | ±2 %* or ±0.20 mL (>6 L/min)** |
| Tidal volume | Vti, Vte |
±10 L ±2 %* or ±0.20 mL (>6 L/min)** |
| Minute volume | Vi, Ve |
0–300 L/min ±2.5 %* |
| Peak flow | PFInsp, PFExp |
± 300 L/min ±1.9 %* or ±0.1 L/min** |
| Pressure | PPeak, PMean, PEEP, PPlateau, IPAP |
0–150 mbar ±0.75 %* or ±0.1 mbar** |
| Compliance | CStat |
0–1000 mL/mbar ±3 %* or ±1 mL/mbar** |
| General information | ||
| Realtime curves | yes | |
| Display | 1.7'' with touch control elements (color) | |
| Interface | RS-232, USB, Ethernet, CAN, Analog Out, TTL, TSI4000 Protocol | |
| Data storage | microSD Card | |
| Power | 100–240 VAC, 50–60 Hz | |
| Dimension (w x d x h) | 11.4 x 7 x 6 cm | |
| Weight | 0.4 kg | |
| Battery | 4 hours | |
| Approvals | CE, BC (Energy Efficiency for Battery Charging Systems), CSA (North America), IEC 61010-1:2010, IEC 61326-2:2012 | |
|
The greater tolerance is valid: |
||
Software for FlowAnalyser and CITREX.
Monitor and save your ventilation parameters of flow, pressure, and volume measurements comfortably on your PC. FlowLab graphically displays your measured values numerically or as real-time curves. Trending reports are generated with up to 100 hours of data to check the long-term functionality of your device. Simplify the verification process of your ventilation equipment by creating your own individual test reports that can be stored electronically or printed.
The FlowLab software is available in 15 languages.
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Create test sequences for any medical device that produces pressure or flow such as a ventilator or anesthesia machine. A powerful editor allows you to design your test sequence by inserting components such as text, graphics, images, measured values and more. Very efficiently reproduce a test sequence specified by the medical device manufacturer. Run tests and generate PDF test reports with an electronic signature and your company’s logo. Test sequences can be saved for reuse, sharing, and standardization across your organization.
With a few clicks, measurement values can be saved directly from FlowLab into a report and printed out. Freely definable content allows you to design test reports according to your needs. Thus, in addition to the measured values, all the data of the test object is documented for a clear overview.
The generated control numbers help you keep an overview of your test reports and assign the correct document to the corresponding test object, even after a long time. You can also easily insert your company logo, so that each report can be visually recognized as a company document.
FlowLab helps you automatically create clear documents and saves you the trouble of creating test reports in word processing programs.
For precise analysis of measured values, up to six time-dependent curves can be displayed in FlowLab. The adjustable cursors allow measurement curves of all ventilation parameters to be measured. In the curve trigger settings, you can, among other things, set trigger types or triggering thresholds so that only the desired measuring ranges of the curves are displayed.
To obtain an overview, all curve fields can be color-matched or labeled individually.
With just one click, all curve fields can be saved as an image or printed out.
The trending function of FlowLab allows you to trend measurements for up to 100 hours. It is very easy to select up to 10 measured values and define settings such as recording time, recording rate and time axis. The recorded values can then be exported to an Excel spreadsheet, giving you the possibility to carry out individual evaluations in a calculation program outside of FlowLab.
FlowLab’ s trending capability is the right function when it comes to performing troubleshooting.
In the numeric display in FlowLab, up to 20 measured values can be displayed and sorted simultaneously. In addition, statistical variables such as mean, minimum and maximum values are displayed in real time and can be compared with predetermined set points and tolerances if desired. This makes it easy to see if a certain measured value is within the specified tolerances of the measurement object. Everything at a glance, freely configurable and clearly presented. The optimal display to compare measured values and carry out tests quickly.
The CITREX H4 measurement method offers highly accurate bi-directional flow, volume, and pressure measurements with minimal flow resistance.
Up to 25 relevant respiratory parameters based on volume, flow, and pressure are continuously measured and calculated.
These parameters can be displayed on the color screen in real time.
The CITREX H4 can measure up to eight gas types.
Seventeen supported gas standards enable testing on a wide range of medical devices.
The CITREX H4 comes with an oxygen measurement sensor, allowing for quick and accurate oxygen concentration measurement from 0% to 100%. This is essential for verifying and calibrating respiratory devices, ventilators, and other medical equipment. The oxygen concentration is measured directly in the flow channel, eliminating the need for additional modules.
Creating profiles with CITREX H4 allows individual ventilation devices and application-type setups. This ensures that you always have the correct settings for your measurements and calibrations, guaranteeing quality, increasing efficiency, and ensuring safety throughout your company.
CITREX Webserver is the easiest way to analyze and create reports from CITREX measurements. The software offers real-time curves, trending, cursors and reporting capabilities viewable on your browser and exportable in Excel format.
The CITREX H4 Biomedical test set comes with comprehensive accessories suitable for calibrating and verifying mechanical ventilators and anesthesia machines.
CITREX H4 Test Set «Mobile»
The FlowLab software for your PC offers real-time monitoring of flow, pressure, and volume parameters through visual curves. It enables the creation of automated test sequences, allowing devices to operate more efficiently and save time during testing.
You can also generate customized test reports in PDF format and record parameters for over 100 hours for detailed analysis and documentation. A license for FlowLab is included with every CITREX H4 Test Set.
Please ensure optimal use of your CITREX H4.
Familiarity with your instruments is essential for accurately calibrating and verifying flow and pressure-generating devices. We provide the necessary expertise to assist you with this. Additionally, we offer personal training and instructional videos on our YouTube channel covering various flow and pressure measurement topics. Visit our channel to take advantage of this resource.
Our application notes provide detailed procedures for testing or calibrating specific devices. These notes will help you understand how to set up your CITREX to test ventilators.
Annual calibration of your CITREX H4 is crucial to ensure precise measurements. Take advantage of our hassle-free EasyCal calibration service to arrange pick-up, generate shipment and customs papers online, and preserve the accuracy of your gas flow and pressure measuring device.
EasyCal provides annual maintenance, software updates, and sensor adjustments to guarantee long-term precision. It is the easiest and most reliable way to keep your device in top condition.
