METRON QA-IDS, Руководство пользователя и обслуживания

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5.4 Testing Pressure
Gauge Accuracy
1. Connect pressure generator and pressure gauge to the Inlet and
start calibration of the pressure gauge.
2. Set pressure to 0 mmHg and press F3 .
3. Set pressure to 1000 mmHg and press F4 . The pressure gauge is
now calibrated.
4. Check that the QA-IDS is within specifications at - 400 and
+ 1700 mmHg pressure.
Value Max. deviation
- 400 mmHg ± 10 mmHg
+ 700 mmHg ± 10 mmHg
+ 900 mmHg ± 20 mmHg
+ 1700 mmHg ± 34 mmHg
5. To remove as much air pressure as possible from the pressure
sensor:
•
Connect an infusion set with a supply of sterile, distilled
water to the QA-IDS inlet. (Infusion pump or gravity-fed
system can be used.)
•
Open the infusion set, or set the infusion pump to a rate of
250 ml/hr.
•
Select PRIME (F1) from the main menu to fill the hose
QA-IDS measuring system with water.
•
Once filled, stop the infusion, and set the QA-IDS back-
pressure to - 400 mmHg. The tester will pump to create this
negative pressure in the test circuit.
•
Select DRAIN (F2) and allow pump to run until it stops.
•
Then, set the back-pressure to 10 mmHg, and open the infu-
sion set, pumping any remaining air out of the QA-IDS
pressure sensor.
5.5 Testing Flow Rate
Accuracy
1. Set QA-IDS to do a Flow Measurement, with a set flow rate
(Flow Set) of 100 ml/hr, a back pressure setting (Press Set) of 0
mmHg, and a sampling interval (dT) of 30 seconds.
1. Connect infusion set of a calibrated infusion pump to the QA-
IDS inlet. Note: Metron recommends the use of sterile water
for calibration tests.
2. Prime the QA-IDS:
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