Service Manual
Integra E-Z Oxygen Concentrators
Chart SeQual Technologies Inc. Page 13 of 34 P/N 2917
3.2.2.3.Verify proper oxygen concentration(refer to spec chart pg# 31, 32, or 33). The concentration
should be a minimum of 88% at maximum rated flow. Refer to the troubleshooting section if
this concentration is not met. While monitoring the concentration, verify that the LED’s
function properly on OM equipped units during start-up.
3.2.2.4.Clean inside the unit, as needed using a small vacuum cleaner to remove any accumulation of
dust or debris, prior to attaching the covers.
3.2.3 Replace the HEPA filter once every 12 months(Annually) or when visibly dirty.
3.2.3.1 Remove the existing clamp or cut off the existing cable tie on one side of the HEPA filter.
3.2.3.2 Disconnect tubing from both sides of HEPA filter.
3.2.3.3 Plug in new HEPA filter.
Note: If new HEPA filter still shows IN on input, and OUT on output, or an arrow shows
direction of the flow, make sure that HEPA Filter is installed following the direction of the
flow, which is from the ATF to the POD. Flow is upwards in the picture below.
3.2.3.4 Apply a new cable tie or clamp around the tubing.
4. Test Procedures
4.1. Unit Test Procedure - Preferred Method
It is recommended that the Integra E-Z be tested for oxygen concentration and flow
performance periodically. The factory recommended Test Setup for the Integra E-Z is shown
on the following diagram. Oxygen monitors may or may not have an internal pump to draw
samples of Oxygen to be measured. Placement of the Oxygen Monitor in the test circuit
depends whether they have an internal pump. Only one Oxygen Monitor is needed though.
4.1.1 Connect the circuit per the diagram shown on the next page.
4.1.2 Turn the concentrator on and allow it to warm up at one-half of its rated flow setting
(approximately 5 minutes).
4.1.3 Set the target flow on the Integra E-Z to the maximum rated flow, 5 LPM for Integra Five, 7
LPM for Integra Seven, 10 LPM for Integra Ten and oxygen monitor flow valve to low flow
settings.
4.1.5 Allow the unit stabilize (approximately 10 minutes).
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