Use Instructions

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MasterScope - Instructions for Use
Version 03.00 • Date 19FEB2020
7.2.3 Wireless Spirometry Sensor Linearity Check
2. Use the 3-L calibration syringe for calibration. Connect the calibration syringe
to the wireless spirometry sensor unit.
For a linearity check, a volume calibration should be performed weekly with a 3-L
syringe to deliver three relatively constant flows at a low flow, then three at a
mid-range flow and finally three at a high flow. The volumes achieved at each of
these flows should each meet the accuracy requirement of ± 3.5%.
Proceed as follows:
1. Press the <Linearity Check> icon. In the following screen you will be asked
to verify the current ambient room conditions.
Confirm with the button <Continue>. Following window appears:
ERT PTs are pre-calibrated as part of their manufacture, as such MasterScope is a
calibration-free device. It is possible to perform a linearity check to confirm that
the device is measuring as expected. A 3L syringe used for such a check is not
included as standard, but can be purchased on demand.