Description
The most precise gas flow and pressure test instrument for mobile use.
The test tool of choice for healthcare quality and safety professionals.
CITREX H4 is designed for easy mobile use while still meeting all the requirements of day-to-day field operations. Its capabilities allows it to analyze the performance of a wide variety of medical devices. Examples of gas flow or pressure producing devices are respiratory ventilators, endoscopic insufflators, anesthetic machines, oxygen flow meters, pressure gauges and suction devices.
Biomedical test set CITREX H4
The CITREX mobile test set is a certified, high precision measuring system with an extensive array of accessories.
EasyCal Calibration Service
The convenient, simple calibration service for the annual calibration of your CITREX H4.
EasyCal offers swift maintenance and calibration of your pressure and flow measuring device from IMT Analytics. Alongside checking and calibrating your CITREX H4, the firmware will also be updated.
You can determine the pick-up time for your device on our online platform and automatically generate shipment and customs papers.
Bidirectional flow measurement
Our measuring method allows extremely precise, bidirectional flow, volume and pressure measurement with low flow resistance.
Respiratory parameters in real-time graphs
Up to 25 relevant respiratory parameters based on volume, flow and pressure are continuously measured and calculated and can be easily displayed on the color screen in real-time.
Gas standards and gas types
Capable of measuring up to eight gas types or mixtures such as air, air/O₂ , N₂O/O₂, CO₂, etc., and seventeen supported gas standards enable testing on a nearly limitless range of medical devices.
Oxygen measurement
Fast and precise measurement of oxygen concentration is an important function when verifying and calibrating ventilators or other medical devices. The CITREX H4 test set includes the O₂ option, which allows accurate oxygen measurements.
CITREX Profiles
CITREX Profiles capabilities allow you to easily create customized setup profiles for any of your ventilators or other applications.
CITREX Webserver
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.
FlowLab, a powerful software tool
Software package for real-time curves, 100h trending and customized reporting. Fast data acquisition via USB port.
| 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: * Tolerance related to the measured value, ** Absolute tolerance, *** The unit L/min is based on ambient conditions of 0 °C and 1013.25 mbar (DIN 1343). |
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