Paper Jammed
Figure 4-3. Turning the Printer Mechanism Wheel
8. Reload the paper roll following the instructions on Page 3-23.
Hydraulic Problems
There are six solenoid valves in the 248 analyzer. Failure of any one
solenoid will affect system performance.
Wash Solenoid
Failure will result in wash solution problems during a wash cycle.
Vent Solenoid
Failure will cause calibration problems on the pCO
2
and pO
2
channels.
Gas/Calibrant Select Solenoid
Selects gas or calibrant. Failure will cause problems during a
calibration cycle.
Gas Select Solenoid
Selects calibration or slope gas. Failure will cause calibration problems
on the pCO
2
and pO
2
channels.
pH Cal Solenoid
Delivers 7.382 buffer to the sensors. Failure will cause calibration
problems on the pH channel.
pH Slope Solenoid
Delivers 6.838 buffer to the sensors. Failure will cause slope problems
on the pH channel.
Toubleshooting the System Page 4-9
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