Stryker PneumoSure, Руководство по обслуживанию, Страница: 22 / 76

20
EN
Maintenance and Service Tasks
4.9 Testing the Venting System and Overpressure Alarm
1. Select the following in the configuration menu while in high flow mode:
Venting valve status = OFF with Veress insufflation .
2. Attach the calibration adapter
(5)
to the device as described in chapter 4.7
Mounting the Calibration Adapter and turn the 3-port valve
(4)
to the depict-
ed position.
3. Connect a manometer
(2)
and an air-filled syringe
(1)
to the calibration
adapter (see Fig. 4-12 Test setup: Venting system and overpressure alarm)
4. Set the following values at the device: Nominal pressure = 15 mm Hg, nomi-
nal flow = 3 l/min
5. Use the syringe to slowly generate a pressure of 15 mm Hg.
6. Slowly increase the pressure to 20 mm Hg and then press the START/STOP
key.
7. A warning sound is emitted and Overpressure is depicted.
8. Set the gas flow to > 5 l/min and the nominal pressure to 21 mm Hg.
9. After max. 5 seconds, the venting system will be activated (depends on the
time and pressure threshold set in the user menu).
10. The venting system reduced the pressure.
11. Press the START/STOP key and remove the testing tools and additional mea-
suring equipment.
Corrective measure • Replacing the low pressure unit LPU.
Fig. 4-12 Test setup: Venting system and
overpressure alarm
(1)
Syringe
(2)
Manometer 0-100 mm Hg
(3)
Tube, small diameter
(4)
Three-port valve
(5)
Calibration adapter
mm Hg
(1) (2) (5) (4) (3)