Tuttnauer 2540 EHS, Technician Manual

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5.4.4 Accessing the calibration mode
— With the unit turned on press the PROGRAM key.
— Pressing the PROGRAM key will bring you to its
first function of setting the system’s date the time.
— Setting the date and time can be bypassed by pressing the
PROGRAM key six times.
— On the seventh press of the PROGRAM key CODE:
∅∅∅
will be displayed.
— Advance the code to 011 by pressing the UP arrow key
(this is a technician level code) then press the
PROGRAM key.
— Continue pressing the program key until CALIB CODE:
1
∅∅
is displayed.
— Using the UP arrow key select CALIB CODE: 107 .
— Press the PROGRAM key again until Program Wait is
displayed, this is an intermediate calibration phase. Once
the program wait is completed TEMP CAL:
∅∅∅
will
be displayed.
— Using the UP arrow key advance to TEMP CAL:
∅∅
1
— Press the PROGRAM key again. This is the Temperature
Calibration mode and the data is ready to be entered
— Press the PROGRAM key one additional time and the
display will show PRESS CAL:
∅∅∅
.
— Using the UP arrow key advance to PRESS CAL:
∅∅
1
— Press the PROGRAM key again. This is the Pressure
Calibration mode and the data is ready to be entered