Use Instructions

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MasterScope - Instructions for Use
Version 03.00 • Date 19FEB2020
7.2 Wireless Spirometry Sensor Check
The ERT PTs included with the delivery are pre-calibrated as part of manufacture.
A sensor check can be performed to confirm accurate measurement data.
With regards to volume accuracy*
1
, calibration checks should be performed every
day at least three times to give a range of flows varying between 0.5 and 12 L·s-1
(with 3-L injection times of ~6 s and < 0.5 s.). The volume at each flow should
meet the accuracy requirement of ± 3.5 %.
For checking the linearity of the flow-volume sensor, linearity check should be
performed weekly. A 3-L syringe is used to deliver three relatively constant flows
at a low flow, three at a mid-range flow and three at a high flow. The volumes
achieved at each of these flows should each meet the accuracy range of ± 3.5 %.
*
1
Literature:
MR Miller et al. Series “ATS/ERS Task Force: Standardisation of Lung Function Testing”,
Standardisation of Spirometry” Eur Respir J 2005; 319-338
Copyright © ERS Journals Ltd. 2005
7.2.1 Quality Control for Flow-Volume Measuring
Devices in Compliance with ATS/ERS 2005
Ensure a new ERT PT (with mouthpiece removed) is connected to the 3 L
calibration syringe via an adapter (as shown). In order to perform a
calibration check, click on <Calibration Check>.
7.2.2 Wireless Spirometry Sensor Calibration Check
(ERT PT Check)
An automatic zero adjustment of the connected ERT PT is performed.
ERT PTs are pre-calibrated as part of their manufacture, as such MasterScope is
a calibration-free device. It is possible to perform a calibration 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.