1-1
CHAPTER 1
Introduction and
Parts Identification
I n t r o d u c t i o n
The Plus Gas Flow Analyzer Test System is a portable, multi-functional pneumatic tester
designed specifically for the medical industry. Specific measurements for ventilator testing are
programmed and include flows, volumes, pressures, oxygen concentration, and breath timing. The
Plus Flow Analyzer is designed for use in hospital, field service, home care, manufacturing,
research, and laboratory settings.
The Plus Test System components include:
Interface Module
The interface module connects to and powers the high flow and low flow modules. The model 4089
Interface Module works with existing 4081 High Flow and 4082 Low Flow Modules. The coiled cable
used to connect the flow and interface modules has been updated to a REDEL
®
-style connector for
the 4089 side while the flow module end retains the same 4-pin min-DIN connector. The display on the
interface module is used to control the Certifier Plus system and display measurement readings.
High Flow Module
Measures air, oxygen (O2), nitrogen (N2) and carbon dioxide (CO2) flow rate over a range of 0 to
300 standard liters per minute (0 to 40 standard L/min for CO2). A 150 psi (10 Bar) gauge transducer,
a barometric pressure transducer, and a 150 cm H
2
O differential pressure transducer are also in the
high flow module. A High Flow Module (model 4081) along with an Interface Module (model 4089)
make up the model 4080 Certifier Plus System.
Low Flow Module
Measures air, O2, N2, CO2 and nitrous oxide (N2O) flow rate over a range of 0.01 to 20 standard L/min
with greater accuracy than the high flow module at low flow rates. The Low Flow Module kit (model
4082) is an optional accessory for the 4080 Certifier Plus System. For testing anesthesia workstations,
a 4082 Low Flow Module can be purchased and used in conjunction with a 4089 Interface Module to
measure N
2
O gas flows.
Oxygen Sensor
Connected to the high flow module, the oxygen sensor enables the measurement of oxygen
concentration as well as air and oxygen mixtures. The Oxygen Sensor kit (model 4073) is an optional
accessory for the 4080-S Certifier Plus system standard kit, but it is included as part of the model
4080-F system full kit.
• To avoid inaccurate test readings, DO NOT obstruct the tubing or inlet or outlet
ports, and always use clean, dry gas.
• To avoid damage to the Plus test system components, always use an
inlet filter upstream of the flow modules, and always cap flow module ports when
not in use.
• The Plus test system is not a medical device under the Medical
Device Directive or FDA 510(k) and in no situation should be used for
human measurements.
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