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Introduction

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1

IMT Analytics AG

CITREX H3

was developed in order to measure flow and various pressures and

thus calculate various ventilation parameters. CITREX H3 is a compact, mobile and
easy-to-operate measuring instrument. The device was developed in order to cali-
brate gas flows and pressures by simple means. With the oxygen option it is possible
to measure oxygen concentrations.

The descriptions and instructions in this manual refer to the product CITREX H3.
In this User Manual the unit "sL/min" is based on ambient conditions of 0°C and
1013.25 mbar in accordance with DIN 1343.

This documentation applies to the following versions:

CITREX H3 software:

4.4.000

CITREX H3 hardware:

4.0

In the case of older or newer versions there may be discrepancies in relation to this
User Manual.

Subject to technical modifications without notice.

To avoid possible injuries, please read all the safety instructions be-
fore you use the product.

The device is not intended for use outside a building.

1 Introduction

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Содержание CITREX H3

Страница 1: ...User Manual CITREX H3 ...

Страница 2: ...IMT Analytics AG Gewerbestrasse 8 9470 Buchs SG Switzerland www imtanalytics com ...

Страница 3: ...Operation 16 6 1 Switching the device on off 16 6 2 Screen lock 16 6 3 Dim screen 16 6 4 User controls 17 6 5 Settings 18 6 5 1 Info display 18 6 5 2 Battery indicator 18 6 5 3 Ethernet interface 18 6 5 4 Trigger 19 6 5 5 Gas standard 19 6 5 6 Gas type 20 6 5 7 Gas humidity 20 6 5 8 Oxygen calibration optional 20 6 6 Numerical readings 21 6 7 Filter 21 6 8 Change parameters and units 22 7 Calibrat...

Страница 4: ...re parts 30 11 1 Accessories table 30 12 Disposal 31 13 Directives and approvals 32 14 Specifications 33 14 1 Measurement parameter 33 14 2 Gas type 36 14 3 Power supply 36 14 4 Battery operation 36 15 Appendix 37 15 1 Principle of flow measurement 37 15 2 Trigger 37 15 2 1 Flow trigger 38 15 2 2 Pressure trigger 38 15 2 3 Base flow 38 15 2 4 Delay 38 15 3 Measurement parameters and units 39 15 4 ...

Страница 5: ...ons and instructions in this manual refer to the product CITREX H3 In this User Manual the unit sL min is based on ambient conditions of 0 C and 1013 25 mbar in accordance with DIN 1343 This documentation applies to the following versions CITREX H3 software 4 4 000 CITREX H3 hardware 4 0 In the case of older or newer versions there may be discrepancies in relation to this User Manual Subject to te...

Страница 6: ...y environment It may only be used out side the nursing sector It must not be used directly on patients or devices that are connected to patients The measuring instrument CITREX H3 is intended for over the counter sale With CITREX H3 you have the solution for measurements in the following areas Flow Pressure Volume Ambient pressure Temperature In addition various ventilation parameters can be measu...

Страница 7: ...he device in accordance with its intended use Disregard the specifications Tamper with the device in any way conversions modifications or the like Operate the device with accessories that are not listed in the associated sets of product documentation Although the device meets high quality and safety standards and it has been constructed and tested according to the current state of the art it is no...

Страница 8: ...face On Off button SD card Fragile contents Keep dry Read the User Manual The device must not be disposed of in household waste The device is CE approved Caution observe the safety instructions in the User Manual Reusable packaging Manufacturer s specification and date of manufacture Keep away from heat Temperature range for storage and transport CSA monogram with C US indicator Direct current Tab...

Страница 9: ...9 Start up 5 IMT Analytics AG CITREX H3 Power supply plug with country specific adapters USB cable MicroSD card Dust filter RT019 Network cable Table 2 Scope of delivery 5 Start up ...

Страница 10: ...e connect the power supply unit included to a voltage of 100 VAC to 240 VAC with a frequency of 50 Hz to 60 Hz USB port Figure 1 Power supply Before switching on make sure the operating voltage of the power supply unit agrees with the local mains voltage You will find this information on the rating plate on the back of the power supply unit When operating CITREX H3 via the USB port only use the or...

Страница 11: ...n parameters calculated from them can be displayed on the screen You will find the relevant setting options in the section Operation Flow air Measuring range 300sL min Accuracy 2 of reading or 0 1sL min Volume Measuring range 0 10sL Accuracy 2 of reading or 0 02sL Temperature Measuring range 0 50 C Accuracy 1 75 of reading or 0 5 C Oxygen Measuring range 0 100 Accuracy 1 O2 Pressure in flow channe...

Страница 12: ...ion can be measured in the flow channel To do so an oxygen sensor is screwed into the appropriate port The oxygen sensor has to be connected to the measuring instrument using the cable included The following steps explain how to install and replace the oxygen sensor Oxygen sensor holder Figure 3 Oxygen sensor holder Measuring range 0 100 Accuracy 1 O2 absolute 5 2 3 Installing the oxygen sensor 1 ...

Страница 13: ...to the oxygen sensor by pushing the cable into the hole at the top of the sensor until the cable locks into place Connect the other end of the cable to CITREX H3 by inserting it into the hole provided which is labelled O2 Figure 6 Oxygen sensor cable 4 Perform an oxygen calibration The calibration procedure is described in the sec tion Calibration Calibration ensures that the measured values of th...

Страница 14: ...erface The optional oxygen sensor is connected to CITREX H3 via the O2 interface You will find further information on this in the section Oxygen sensor 3 USB port The USB port is used to operate the device from the mains power supply and to charge the device battery It is a USB Mini B port 4 Ethernet The Ethernet interface is used to configure the device and it is used as a data interface Table 3 ...

Страница 15: ...er To do so undo and remove the two screws on the back of the device Then the battery can be removed and re placed Check whether the new battery has been inserted properly For this purpose the terminals must be opposite one another Figure 8 Change battery 5 4 Change CITREX battery ...

Страница 16: ...e device is then forced to shut down Press the context button on the side of the device for 2 seconds The screen shows a message indicating that the screen is locked To unlock the screen press and hold down the context button or one of the four buttons on the front for 2 seconds If the device is not operated by the user the display of CITREX H3 shuts down after about one minute and the four button...

Страница 17: ...t 2 Context button long press key lock on off 3 On Off button 4 Menu button zero point adjustment 5 Charge indicator 6 Flow direction indicator 7 Screen 8 Display readings and scroll forward 9 Malfunction indicator 10 Display readings and scroll back Table 4 User controls 6 4 User controls ...

Страница 18: ...dited with the configuration tool Figure 10 Info display 6 5 2 Battery indicator The battery indicator informs you about the level of the battery charge Figure 11 Battery indicator 6 5 3 Ethernet interface Here it is possible to make various settings for the network connection With the button you can choose between the options DHCP Client Default and Config ured The setting does not have to be con...

Страница 19: ...ol Figure 13 Trigger The preset trigger settings are defined as follows Adult Pediatric Start 3L min Rising edge 1L min Rising edge Stop 3L min Falling edge 1L min Falling edge Delay 60ms 60ms Base flow 0L min 0L min Table 5 Trigger settings 6 5 5 Gas standard The CITREX H3 measuring instrument can convert gas flow and volume readings to various gas standards and display them Care must be taken to...

Страница 20: ... Gas type 6 5 7 Gas humidity The gas humidity of the gas being measured can be set This has an impact on gas flow measurement With the button the gas humidity can be changed in steps of 10 The value is enabled as soon as it is displayed on the screen Figure 16 Gas humidity 6 5 8 Oxygen calibration optional Oxygen calibration is only available if the oxygen option has been enabled The pro cess of o...

Страница 21: ...lation mode 3 Gas type The gas type currently set is displayed as text It can be customised on the device under Settings 4 Reading This shows the current reading in the selected unit of measurement 5 Measurement parameter Indicates the measurement parameter currently selected Meas urement parameters can be changed in configuration see section Configuration tool 6 Measuring Unit Indicates the unit ...

Страница 22: ... succession Edit Mode is enabled This is indicated by a red icon on the screen The parameter or unit in the red frame can be changed with the icon or the icon The icon allows you to jump to the next element If the context button or the button is pressed once you exit Edit Mode 6 8 Change parameters and units ...

Страница 23: ...re 19 Zero calibration When you have switched on the device individual displays may devi ate slightly from the zero point until operating temperature has been reached Zero calibration should never be performed with the device cold Warming up time is approx 10 minutes During zero calibration there must be no pressure being applied to a connection port and care must be taken to ensure that there is ...

Страница 24: ... To start calibration press the button It takes about 120 seconds before calibration is completed Figure 20 Screen displays Calibration Air 7 2 2 Calibration with oxygen and air For calibration of the oxygen cell with oxygen and air a gas flow of 30 L min is used in each case Press the button until you see the menu item O2 Calibration With the button you can switch between air and air and oxygen O...

Страница 25: ...Ppeak mbar PEEP mbar 25 5 ATP Air O2 man Ppeak mbar PEEP mbar 25 5 ATP Air O2 man Ppeak mbar PEEP mbar 25 5 ATP Air O2 man Ppeak mbar PEEP mbar 25 5 ATP A Ppeak mbar PEEP mbar 25 5 CITREX H3 CITREX H3 CITREX H3 CITREX H3 CITREX H3 ATP Air O2 man Ppeak mbar PEEP mbar 25 5 ATP Air O2 man Ppeak mbar PEEP mbar 25 5 ATP Air O2 man Ppeak mbar PEEP mbar 25 5 ATP Air O2 man Ppeak mbar PEEP mbar 25 5 ATP A...

Страница 26: ...the grey aluminium connection port of CITREX H3 Figure 24 Measurement setup for checking ventilators 8 2 Measurement setup for checking ventilators CITREX H3 CITREX H3 CITREX H3 EasyLung CITREX H3 ATP Air O2 man Ppeak mbar PEEP mbar 25 5 ATP Air O2 man Ppeak mbar PEEP mbar 25 5 ATP Air O2 man Ppeak mbar PEEP mbar 25 5 ATP Air O2 man Ppeak mbar PEEP mbar 25 5 Breathing circuit Tubing CITREX H3 Test...

Страница 27: ...h Microsoft Silverlight 5 There are three different setting options to establish a connection between CITREX H3 and a computer Tap the button until the Ethernet menu item appears You will find a description of the settings in the following sections 9 2 1 Default These are default settings that cannot be changed These settings are recommended in order to establish a direct connection to the compute...

Страница 28: ...dress via Internet Explorer 9 2 3 DHCP To connect CITREX H3 to a DHCP server first connect CITREX H3 to the network In the Ethernet menu select the setting DHCP With the IP address shown on the display it is possible to establish a connection to CITREX H3 via Internet Explorer 9 2 4 Enable oxygen option With the PC establish a connection to CITREX H3 as described above The enable code obtained can...

Страница 29: ...ollowing servicing routines regularly 10 1 1 During operation Use of the filter included in order to protect the device against contamination Make sure the device is only used inside a building 10 1 2 Every 4 weeks Check the bacterial filter for soiling For this purpose the pressure drop above the filter must be measured The pressure drop must not exceed a value of 2 mbar at a flow of 60 L min Oth...

Страница 30: ...g Package for CITREX H3 Accessories Consumables 300 548 000 Adapter set 301 997 000 Car adapter for CITREX 302 077 000 Laminar inlet pipe 304 161 000 Black protective pouch for CITREX 304 161 001 Red protective pouch for CITREX 304 161 002 Blue protective pouch for CITREX 301 851 000 MicroSD memory card 301 655 000 Blind plug for oxygen connector rubber 302 178 000 Blind plug for oxygen connector ...

Страница 31: ...of in accordance with regulations In the case of self disposal the disposal regulations are country specific and are con tained in relevant laws and ordinances These codes of conduct must be obtained from the authorities responsible In this context wastes must be recycled or destroyed without endangering human health without using processes or methods that harm the environment especially water air...

Страница 32: ...AMENT AND OF THE COUNCIL of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits tested according to EN61010 1 2010 2014 30 EU EMC DIRECTIVE 2014 30 EU OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 26 February 2014 on the harmonisation of the laws of the Member...

Страница 33: ...measurement 300sL min 2 or 0 1sL min Temperature compensated Yes Ambient pressure compensated Yes Channel pressure compensated Yes 50 600mbar N2O O2 mixtures Flow measurement 80sL min 4 or 0 3sL min Temperature compensated Yes 25 30 C Ambient pressure compensated Yes Channel pressure compensated Yes 50 600mbar Pressure In flow channel 50 150mbar 0 75 or 0 1mbar Barometer 500 1150mbar 1 or 5mbar Ta...

Страница 34: ...surement channel rises at the same time The measurement channel volume is relatively small even for relatively high volumetric flows e g PIF 60L min If the temperature of the gas on entering CITREX H3 is compared with gas temperature in the measurement channel it becomes evident that the temperature in the measurement channel is higher Therefore the temperature of the gas entering the CITREX H3 me...

Страница 35: ...ating data Ambient temperature 15 40 C 59 104 F Air humidity 10 90 RH Ambient pressure 783 1150mbar Storage and transport conditions 10 60 C 14 140 F at 5 95 RH Degree of soiling Degree of soiling 2 to IEC 61010 1 Table 11 General information and operating data It is the larger tolerance that applies Tolerance in relation to the reading Absolute tolerance In this User Manual the unit sL min is bas...

Страница 36: ...red Therefore it is essential to check which standard condition the value displayed will relate to The standard currently set is indicated on the numerical display A gas type that has not been selected properly and a gas stand ard that has not been selected properly can lead to measuring errors of up to 20 Input voltage of the power supply unit 100 240 VAC 50 60Hz Supply voltage 5 VDC Power input ...

Страница 37: ...ontent of the medium Density Density is the unit for the mass per unit volume of the medium Viscosity is extremely dependent on temperature The viscosity of a medium is slightly dependent on the pressure and moisture content of the medium Triggers are used to define start and end points of cyclical signals With regard to pressure and flow curves the trigger makes it possible to determine inhalatio...

Страница 38: ...e measurement Whereby the direction of flow is of no consequence 15 2 3 Base flow Base flow is a constant flow that must not be included in volume calculation If for example a system has a defined leak resulting in a constant discharge of 3 L min those 3 L min are not included in the inspiratory volume The 3 L min can be entered as a trigger setting so they will not be taken into account 15 2 4 De...

Страница 39: ...erature Oxygen content option Volume Temp O2 Volume C K F mL L cf Gas concentrations Measurement parameter Designation Units of measurement Gas concentration Gas concentration Ventilation parameters Measurement parameter Designation Units of measurement Positive end expiratory pressure Mean pressure Maximum pressure Inspiratory minute volume Inspiratory expiratory peak flow Inspiratory volume Vent...

Страница 40: ... 0 Ambient Temperature and Pressure Saturated ATPS Current ambient pressure Current gas temperature 100 Ambient Pressure at 21 C AP21 Current ambient pressure 21 0 C 70 F Current gas humidity Standard Conditions USA STP 1013 25mbar 760mmHg 21 0 C 70 F 0 Standard Conditions USA Humid STPH 1013 25mbar 760mmHg 21 0 C 70 F Current gas humidity Body Temperature and Pressure Saturated BTPS Current ambie...

Страница 41: ...tm 0 75006 mmHg at 0 C 0 02953 inHg at 0 C 1 01974 cmH2O at 4 C 0 40147 inH2O at 4 C 0 01450 psi psia 1 bar 1000 mbar 0 1 Pa 1000 hPa 100 kPa 750 06 torr 760 torr 1atm 750 06 mmHg at 0 C 29 53 inHg at 0 C 1019 74 cmH2O at 4 C 401 47 inH2O at 4 C 14 50 psi psia Table 14 Conversion factors 15 5 Conversion factors ...

Страница 42: ...ow channel 11 Figure 3 Oxygen sensor holder 12 Figure 4 Protective cap 12 Figure 5 Screwing in the oxygen sensor 13 Figure 6 Oxygen sensor cable 13 Figure 7 Electrical interfaces 14 Figure 8 Change battery 15 Figure 9 User controls 17 Figure 10 Info display 18 Figure 11 Battery indicator 18 Figure 12 Ethernet interface 18 Figure 13 Trigger 19 Figure 14 Gas standard 19 Figure 15 Gas type 20 Figure ...

Страница 43: ... standards 40 I Intended use 6 M Measurement parameters 33 39 Measurements 6 Measurement setup 25 Mechanical connectors 11 Meteorological readings 39 MicroSD 14 N Notes 7 Numerical readings 21 O O2 23 O2 interface 14 Operating time 36 Operation 16 Options 30 Oxygen 23 Oxygen option Enable oxygen option 28 Oxygen sensor 12 Oxygen sensor installing 12 P Parameter 22 PC minimum requirements 27 Person...

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Страница 46: ...305 086 000_03 2019 03 Subject to change without notice IMT Analytics AG Gewerbestrasse 8 9470 Buchs Switzerland T 41 81 750 67 10 www imtanalytics com ...

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