ABL77 Service Manual Chapter 4: Test and Calibration Procedures
Valve Test Procedures, Continued
Test procedure
Use the following steps to test the check valve fluidics system.
Step Action
1.
Disconnect tubing (A) from COM luer of L1. Using a syringe, apply a
vacuum to the Sensor Luer:
a) If syringe maintains a vacuum, replace Valve L2. Return to the
beginning of step 1 and continue testing.
b) If syringe loses vacuum, proceed to step 2.
2.
Pinch tubing (A) closed with a hemostat. Using a syringe, apply a
vacuum to the Sensor Luer:
a. If syringe loses vacuum, replace Valve L2. Return to the
beginning of step 1 and continue testing.
b. If syringe maintains a vacuum, proceed to step 3.
3.
Press Pump Cal1:
a. If syringe maintains a vacuum, replace Valve L2 then return to the
beginning of step 1 and continue testing.
b. If syringe loses vacuum, Valve L2 is working.
• Remove hemostat
• Connect tubing (A) to COM luer of Valve L1 and proceed to
step 4.
4.
Disconnect tubing (B) from COM luer of L3. Using a syringe, apply a
vacuum to the Sensor Luer:
a. If syringe maintains a vacuum, replace Valve L1. Return to the
beginning of step 4 and continue testing.
b. If syringe loses vacuum, proceed to step 5.
5.
Pinch tubing (B) closed with a hemostat, Using a syringe, apply a
vacuum to the Sensor Luer:
a. If syringe loses vacuum, replace Valve L1. Return to the
beginning of step 4 and continue testing.
b. If syringe maintains a vacuum, proceed to step 6.
6.
Press Pump Cal2:
a. If syringe maintains a vacuum, replace Valve L1. Return to the
beginning of step 4 and continue testing.
b. If syringe loses vacuum, Valve L1 is working.
• Remove hemostat
• Connect (B) to COM of L3 and proceed to step 7.
Continued on next page
Rev. F 4-17
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