Tuttnauer 2540 EHS, Technician Manual

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— Enter the value for “A”. This will be the second
temperature value that the PT100 simulator was
set for.
— Press the PROGRAM key to advance to the
next value.
— The cursor on the bottom row will move one
position to “R”. Now enter the second
temperature value recorded from the display
— Press the PROGRAM key one final time.
If PROGRAM WAIT has not been displayed
then continue to press the PROGRAM key until
it appears.
After a brief period the unit will return to a
Ready state
5.4.3 Collecting and entering pressure data
When collecting data, keep in mind that “A” is always the
actual pressure and “R” is always what is being displayed on
the digital screen of the autoclave. Under normal
circumstances calibration only needs to be done at the high
end of the pressure range.
Once in the calibration mode, the calibration screen will look
similar to this:
Upper Row: A 15 R 15 (atmospheric pressure reading)
Lower Row: A 45 R 45 (high pressure reading)
When entering data, remember that the upper row represents
atmospheric pressure and the bottom row represents the high
pressure of the chamber. And that all entrees are in absolute
pressure .
“If the display reads a chamber pressure of 00, with the door
of the autoclave open, then proceed directly to 5.4.3.2.
If the reading is not 00 then proceed as follows.
5.4.3.1 Atmospheric pressure calibration
Set the Atmospheric pressure parameter (see 8.2.17)
— If the read out on the display is at least 1psi
above or 1Ih below 00 then access the
calibration mode as described in para 5.4.4
The cursor will appear flashing under the value
for “A” in the upper row.
— Press the Program key to advance to the next
value “R” in the upper row