GE AquaTrans AT868, User Manual

Page: 69 / 158

September 2004
4-2 Calibration
Accessing the Calibration
Menu
1.
Press
[ESC]
,
[ENTER]
,
[ESC]
. The meter enters the user program.
2.
Press [
X
] until
CALIB
appears and press
[ENTER]
.
3.
Press [
X
] until
SLOT0
appears and press
[ENTER]
.
4.
Press [
X
] until
A
or
C
appears and press
[ENTER]
.
Calibrating the Low End of
the Analog Output
1.
Press [
X
] to select
4 mA
and press [
ENTER
].
2.
Press [
X
] to select
UP
or
DOWN
to adjust the 4 mA reading and
press [
ENTER
].
3.
When the desired reading is achieved, select
STORE
. If the
ammeter reading cannot be adjusted with 5.0
µ
A of the 4 mA
setting, select
ABORT
to end calibration and contact the factory for
assistance.
Calibrating the High End of
the Analog Output
1.
Press [
X
] to select
20 mA
and press [
ENTER
].
2.
Press [
X
] to view the options to adjust the 20 mA reading and
press [
ENTER
].
3.
When the desired reading is achieved, select
STORE
. If the
ammeter reading cannot be adjusted with 5.0
µ
A of the 4 mA
setting, select
ABORT
to end calibration and contact the factory for
assistance.
Procedure Options
After completing the above steps, the meter returns to the
ANALOG
OUTPUT
window. Do one of the following:
•
Proceed to Step 1 under Testing Linearity on the next page.
•
To perform another programming function, refer to Appendix
A,
Menu Maps , to navigate to the desired menu.
•
To leave the User Program , press
[ESC]
four times.