Martel Electronics BetaGauge 3II - Manual (Page 78)

5-11 Advanced Display Modes
4. Use the keypad numbers to enter a value equal to
the expected low electrical signal value of the field
instrument, then press the ENTER key. The
display screen then prompts you for an expected
high electrical signal value.
5. Repeat step 4 to enter a value for the expected high
electrical signal value.
6. After you have specified values for both the
expected low and high electrical signals, the
display screen will return to the main linearization
screen. At this point, you can do one of the
following:
 Press the opposite channel select key and
program another linearization mode for the
remaining module.
 Press the CLR key to return to the Setup
menu.
Percent Error Display
The BetaGauge II will display a field instrument’s
output in percent error with respect to the field
instrument’s input.
When you want to display electrical signals in percent
error, you must perform the following procedures:
 Define the type of field instrument you want to
calibrate:
- Pressure transmitter (P/I)
- Electrical to pressure converter (I/P)
- Other
 Define the expected signal values for both the low
and high ends of the field instrument’s input and
output scales.