Deproteinizing the Sensors
Equipment: Deproteinizer/Conditioner pack or Deproteinizer (Cat. 105610).
1. Activate the Deproteinizer by mixing D1a and D1b.
a. Tap the vial (D1b) before opening to return all the pepsin powder
to the bottom of the vial.
b. Gently add solution D1a.
c. Cap and shake the vial until the powder has dissolved, this will
take a few seconds. The powder must be completely dissolved
before the solution is used.
Figure 3-5. Activating the Deproteinizer
2. From the Ready screen press # for menu, 2 for Maintenance and 1
for Deproteinize.
3. Following the instructions on the screen, lift the probe to the first
position and present the deproteinizing solution.
Hold the solution in place until prompted to remove it, then close
the probe.
4. The Deproteinizer is left in contact with the sensors for 5 minutes,
and the screen shows the time remaining. When deproteinizing is
finished, the 248 washes and will calibrate on return to the Ready
screen.
You can cancel the Deproteinize routine to measure a sample by
pressing *. The 248 washes and will calibrate on return to the
Ready screen.
Conditioning the Sensors
Equipment: Deproteinizer/Conditioner pack or Conditioner (Cat. 478701).
1. From the Ready screen press # for menu, 2 for Maintenance and 2
for Condition.
2. Following the instructions on the screen, lift the probe and present
the conditioning solution.
Hold the solution in place until prompted to remove it, then close the probe.
3. The Conditioner is left in contact with the sensors for 5 minutes,
and the screen shows the time remaining. When conditioning is
finished, the 248 washes and will calibrate on return to the Ready
screen.
You can cancel the Condition routine to measure a sample by
pressing *. The 248 washes and will calibrate on return to the
Ready screen.
Maintaining the System Page 3-7
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