Respiratory filter pressure drop tester

Respiratory filter pressure drop testerDesign and manufacture according to the "6.3 Pressure drop measurement" item in the "YY/T 0735.1-2009/ISO 9360-1:2000 Heat and Moisture Exchanger (HME) for Humidification of Human Respiratory Gas in Anesthesia and Respiratory Equipment Part 1: HME for Minimum Tidal Volume of 250mL" standard. Mainly used for pressure drop measurement and testing of heat and moisture exchangers.

Respiratory filter pressure drop tester

■ Product features

Professional Design

·7-inch color touch screen control, intuitive operation interface, brings great improvement to the operating experience.

·The instrument is equipped with a micro printer that can print test results in a timely manner.

·Equipped with high-precision pressure sensors.

·Equipped with high-precision flow meters, it can accurately test the flow rate of samples passing through.

·Adopting a universal design conical testing interface to meet the testing requirements of most products on the market.

·Intelligent configurations such as overload protection and power-off memory effectively ensure the safety of user operations.

·Support quick viewing and printing of historical data.

·The instrument comes with a micro printer and powerful data storage function, capable of storing up to 100000 pieces of data.

safety protection

·The software comes with a pressure over range shutdown function, effectively protecting the safety of the sensor

·Intelligent configurations such as overload protection and power-off memory effectively ensure the safety of user operations

data security

·Equipped with a four level user security password policy to ensure the security of test data

·The computer software meets the requirements of GMP "Computerized Systems" and has functions such as user management, permission management, data audit tracking, etc

■ Technical parameters

■Test Principle

1. Use an airflow resistance tester to connect differential pressure gauges and flow meters on both sides of the HME.

2. Measure the pressure difference within the first 5 seconds of flowing through HME using dry medical air or oxygen at the flow rate specified in Standard Table 4.

The gas temperature should be 23 ℃± 2 ℃. 6.3.3 Remove the HME, connect the two test pipelines, and measure the pressure drop at the same flow rate. Subtracting this value from the result measured in step 2 yields the pressure drop generated by HME.

4. After pre adjusting the HME to the recommended maximum usage time using the test instrument specified in standard 6.2.2 and the corresponding conditions for the expected application of the device specified in Table 2, repeat steps 1 and 2.

■ Reference standards

YY/T 0735.1-2009/ISO 9360-1:2000 Anesthesia and respiratory equipment - Heat and moisture exchangers (HME) for humidification of human respiratory gases

Test application

General function: Gas resistance test of heat and humidity exchanger (HME) for humidifying human respiratory gases

■ Product configuration

Standard configuration: Host, 7-inch touch screen, ventilator universal tube, exhalation tube, inhalation tube, micro printer