7 Startup
36
7.8.1
Setting the scaling start value (Sc.Lo)
NOTE!
The output signal can only be scaled on devices with analog output.
Example:
The device has a measuring range from -400 to +400 mbar.
The output signal of the device is 0 to 20 mA.
1. Unlock the device.
chapter 7.2 "Unlocking the device (enter the code).", Page 27
2. "Turn" until "Sc.Lo" appears in the bottom line.
3. "Press" (- flashing, Sc.Lo static)
NOTE!
The value is entered "digit-by-digit“!
Setting range:
0 to 75% of the nominal measuring range
Default setting:
Measuring range start
Target:
The range 0 to 200 mbar (user measuring range) must be displayed on the output
side as 0 to 20 mA.
Setting:
Scaling start value (Sc.Lo) = 0.000
Scaling end value (Sc.Hi) = 200.0
Result:
If the pressure is
below
0 mbar, the device places the error "Measuring range under-
shot" and provides the corresponding error signal (0 mA) at the output.
At a pressure of 0 mbar, the device provides 0 mA at the output.
At a pressure of 200 mbar, the device proveds 20 mA at the output.
If the pressure
exceeds
200 mbar, the device reports the error "Measuring range ex-
ceeded" and provides the corresponding error signal (22 mA) at the output.
Summary of Contents for DELOS SI
Page 2: ...Further information and downloads qr 405052 en jumo info ...
Page 57: ......
