Knauer 4000 MiD, Инструкция по эксплуатации

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34 Calibration
4000 MiD® Instructions, V6695
9.3 Cleaning the spraychip
This is the recommended cleaning procedure for the spraychip. The
calibration kit will be required to follow the procedure in this section. The
spraychip can be cleaned by using either the DFI or SFI.
9.3.1 Cleaning the Spraychip with DFI
1.
Fill a syringe with a 50:50 (v/v) mixture of HPLC grade methanol and
water with no additives and mount in a syringe pump.
2. Attach the DFI to the syringe using the adaptor and tubing provided
for calibration.
3. Screw the spraychip to be cleaned into the DFI and place it on a lint
free tissue on a flat surface.
Caution Do not mount the DFI to the MiD during this process
Attention Ne montez pas le DFI á la MiD au cours de ce proces-
sus
4.
Infuse at least 150 µL of the water/methanol using a flow rate of 10
µL/min. The solution will flood the spraychip during this process.
5. Unscrew the spraychip from the DFI and gently blow dry with com-
pressed air/nitrogen to remove any excess liquid.
6.
Leave the spraychip for a few hours to dry completely
7.
The spraychip is now clean and ready for use.
Note:
If an increased delay is observed on the split flow inter-
face (SFI) when using the cleaned spraychip then attempt to
clean again. In the event that this delay continues to be unac-
ceptable then the spraychip must be replaced.
If the spraychip looks visually degraded or you have any queries
please contact KNAUER before using the device.
9.3.2 Cleaning the Spraychip with SFI
1.
Fill a syringe with a 50:50 (v/v) mixture of HPLC grade methanol and
water with no additives and mount in a syringe pump.
2. Disconnect the PEEK tubing from the SFI (input and waste line).
3. Install the SFI plug into the waste line port and complete all fluidic
connections between the SFI and the syringe.
4.
Screw the spraychip to be cleaned into the SFI and place it on a lint
free tissue on a flat surface.
Caution Do not mount the SFI to the MiD during this process
Attention Ne montez pas le SFI á la MiD au cours de ce proces-
sus
5. Infuse at least 150 µL of the water/methanol using a flow rate of 10
µL/min. The solution will flood the spraychip during this process.
6. Unscrew the spraychip from the SFI and gently blow dry with com-
pressed air/nitrogen to remove any excess liquid.
7. Leave the spraychip for a few hours to dry completely
8. The spraychip is now clean and ready for use.
Procedure
Procedure