Waters 717plus - 3.7 System Verification

Startup and Configuration 74
3
3.7 System Verification
Perform system verification:
• After installation
• Daily to test the autosampler sample loop
To perform system verification:
1. Using a degassed solution of 100 percent methanol, set the solvent delivery pump
to 1 mL/min.
Note: For daily verification, use the mobile phase that you normally run.
2. From the 717plus Main Menu, press Edit Purge (Figure 3-13
).
Figure 3-13 Purge Menu
3. Set Compression Check to Yes and press Enter.
4. Press Start Purge.
5. Record the pressure change and compressed volume. Use these values as a basis
for evaluating mobile phase degassing and sample loop integrity.
6. If the compression exceeds the default compressible volume, degas the mobile
phase and run the compression check again.
PURGE
Edit: Purge and Compressibility
Purge Time (min) :
Compression Check?
Compression Pressure (psi) :
Pressure Decay Time (min) :
Compressible Volume ( 1) :
Pressure Change (psi)
Compressed Volume (psi)
Start
Purge
1.0
Yes
30
0.2
20
1.0
No
30
0.2
20