Bayer HealthCare Rapidlab 800 - Manual (Page 349)

4Ć63 Troubleshooting the System
Valve Function
Vent controls the flow of ambient air into the manifold
Clean controls the flow of Cleaning Solution
G/L controls the flow of Cal G/L Reagent
Bypass diverts the Wash G/L Zero Reagent in the reagent manifold when the
foam wash valve is off, preventing a pressure buildup
Diverter directs the flow of reagent into either the calibration passage or the
wash passage of the sample port
If you want to test the Cal Gas or Slope Gas valves, refer to Checking the Gas
Flow, page 4-64.
1. Access the Valves Test from the Menu screen:
a. Select 3 Troubleshooting and press Enter .
b. Select 1 Fluidics System and press Enter .
c. Select 4 Valves and press Enter .
The Valve Test screen appears as shown in Figure 4-6.
Figure 4Ć6.ā Valve Test Screen on an 860
Test one valve
at a time.
Check here for results.
2. Select the valve you want to test and press Enter .
3. Press Start Test .
Listen for a distinctive click, which indicates the opening of the valve, and
check the screen for the message, Valve energized, to verify that the valve is
operating correctly.
4. Press Stop Test .
Listen for a distinctive click, which indicates the closing of the valve.
4 1
Menu Code
3