Factory Settings Page - ABB 9438 User Manual

7.7 Factory Settings Page

When carrying out the electrical calibration procedure, the actual values denoted by
to determine display reading stability.
– – – – –
FACTORY SETTINGS
0 0 0 0 0
FACTORY SET CODE
– – – – –
ELECTRICAL CAL
– – – – –
Calibrate YES
NO
NO YES
X X X X
 
A Zero (0 A)
X X X X
 
A Span (100 A)
X X X X
Temp Zero (1k0)
X X X X
Temp Span (1k5)
– – – – –
Adjust RTX Zero
7 PROGRAMMING AND ELECTRICAL CALIBRATION...
Press to advance to next parameter
or
Press to return to
Operating Page
Parameters in these pages are factory set and should not normally require adjustment.
They can be set up only if the necessary equipment is available.
Factory Settings Access Code
Enter the required code number. If an incorrect value is entered, access to subsequent
parameters is prevented and the display reverts to the top of the page.
Select YES to access the electrical calibration sequence. Select NO to advance to
.
Cal Time 1
Caution. Do not select YES unless instrument calibration is required.
Microamp Zero
Set the current source to 0 µA and allow the instrument display to stabilize.
Microamp Span
Set the current source to +100 µA and allow the instrument display to stabilize.
Calibrate Temperature Zero
Set the temperature simulator resistance box to 1000 and allow the instrument display
to stabilise.
Calibrate Temperature Span
Set the temperature simulator resistance box to 1500 and allow the instrument display
to stabilise.
Adjust Retransmission Zero
Set the milliammeter reading to 4.00 mA.
Note. Retransmission signal span is calibrated using 20.00 mA. The correct value
transmitted depends on the range selected in the
Continued on next page...
xxxxx
are unimportant and are used only
, Section 6.2.1.
Set Up Outputs Page
.
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