Stryker ENDOSCOPY Standard - Testing the Low Pressure Regulator LPR; Low Pressure Safety Valve LSV; Testing Low Pressure Unit for Leaks; Testing Flow Volume

US-10
DE
Adjustment
 Use the adjustment screw 1 of the high-pressure
controller for any adjustments.
2-4 Testing the Low Pressure Regulator LPR
1. Open the gas supply line.
2. In the service menu, open the LPR Adjust menu option and
check the settings. (Adjust with adjustment screw, Fig. 2-4-1)
Fig. 2-4-1: F105 Low Pressure Controller Settings
2-5 Low Pressure Safety Valve LSV
Close device exit using a tube clamp (Fig. 2-6-1 , 4).
In the service menu, open the LSV Adjust menu option and
check the settings.
Adjustment
Use the adjustment screw of the low-pressure safety valve for
a slight adjustments.
2-6 Testing Low Pressure Unit for Leaks
Fig. 2-6-1: Test Layout: Low Pressure Unit Leakage Test
1 Manometer (0-70 mm Hg)
2 Syringe
3 T-Connector
1. Attach manometer 1, air-filled syringe 2, tube, and T-
connector 3to the insufflation tube connection.
2 Use the syringe to generate a pressure of at least 50 mm
Hg. Clamp tube at 50 mm Hg.
3. Wait 30 seconds. Pressure at manometer may not have
dropped more than max. 2 mm Hg.
Adjustment
 Check fluid sensor and low-pressure unit tube(and replace
if necessary).
2-7 Testing Flow Volume
Fig. 2-7-1: Test Layout: Flow Volume
1 Tube Connection
2 Flow Column (40 l/min)
1. Attach a tube and a flow column to insufflation tube
connection (Fig. 2-6-1).
2. Turn on device.
3. Set a nominal pressure of 15 mm Hg.
4. Press the Start/Stop key.
5. Check flow volume of device in gas flow levels 2 and 3. The
value of the nominal flow indicator may not exceed a
tolerance of ±2,0 l/min.
The flow column value is not to be considered until after
gas flow fluctuations have stabilized.
6. Press the Start/Stop key to end test.
7. Remove all measuring tools and resources.
Adjustment
 Service menu option Flow Calibration.
2 Function Test
2 Function Test