35
7 Commissioning
7.8.1
Setting the starting value of scaling (Sc.Lo)
Setting range:
0 to 75% of the nominal measuring range
Factory setting:
Initial value of measuring range
Example
The instrument has a nominal measuring range -400 ... +400 mbar
The output signal of the instrument is 0 ...20 mA
Objective:
The range from 0 to 200 mbar (customer's measuring
range) will be represented on the output side by
0 ... 20 mA.
Setting:
The initial value of scaling (Sc.Lo) = 0.000
The final value of scaling (Sc.Hi) = 200.0
Result:
At a pressure of less than 0 mbar the instrument reports
an error (value below lower measuring range limit) and
makes the corresponding error signal (0 mA) available at
the output.
At a pressure of 0 mbar the instrument makes 0 mA
available at the output.
At a pressure of +200 mbar the instrument makes 20 mA
available at the output.
At a pressure greater than +200 mbar the instrument
reports an error (measuring range exceeded) and makes
the corresponding error signal (22 mA) available at the
output.
Setting
✱
Unlock the instrument, See section 7.2 "Unlocking the instrument (code
entry)", page 27.
✱
"Rotate" until the bottom line shows "Sc.Lo".
✱
"Press"
The output signal can only be scaled for instruments with
analog output!
Enter the value "digit by digit."
"-" Flashing
Continuous
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