GE PT878GC Manual De Usuario
Servicing the PT878GC
9-23
April 2004
Calibrating Inputs
To open the Inputs window, press the [
X
] arrow key and press
[ENTER]
. The screen appears similar to Figure 9-15 below.
Note: Calibrating the analog inputs requires use of a current
source.
Figure 9-15: The Inputs Window in the Calibrate Option
1. Press the [
T
] arrow key to enter the window.
2. The first prompt asks you to select the input.
a. Press
[ENTER]
to open the drop-down list.
b. Use the [
T
]or [
S
] arrow keys to scroll to the desired
output (A or B).
c. Press
[ENTER]
to confirm your selection.
3. The next prompt asks for the value to which you want to set
the low input (0 or 4 mA).
a. Press
[ENTER]
to open the text box.
b. Use the numeric keys to enter the desired value.
c. Press
[ENTER]
to confirm your entry.
Analog Output
Calibrate/Test I/O
Analog Input
Input#
A
Low
Cancel
OK
4 mA
mA
20
Calibrate
High
Read
Read
Reset