Electrical Calibration Page - ABB ZDT–FG Series Installation And Operating Manual

8.3 Electrical Calibration Page

In this section the actual values denoted by
stability.
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ELECTRICAL CAL.
xxxxx
Calibrate
xxxxx
mV Zero 1
xxxxx
mV Span 1
xxxxx
mV Zero 2
xxxxx
mV Span 2
25. 0
Adjust CJ Value
-----
Adjust RTX Zero
-----
Adjust RTX Span
Operating Page
xxxxx
Electrical Calibration Page
Calibrate
Select YES to access the electrical calibration sequence. Select NO to
advance to the
NO
YES
mV Zero 1
Set the Cell simulator millivolt source to –20mV and allow the display to
stabilize.
-20mV
mV Span 1
Set the Cell simulator millivolt source to 180mV and allow the display to
stabilize.
180mV
mV Zero 2
Set the Temperature simulator millivolt source to 10mV and allow the display to
stabilize.
10mV
mV Span 2
Set the Temperature simulator millivolt source to 40mV and allow the display to
stabilize.
40mV
Adjust Cold Junction Value
Set the measured ambient temperature in °C
Adjust RTX Zero
Set the milliammeter reading to the minimum retransmission level determined by
the
Retransmission Type
Retransmission Type
Adjust RTX Span
Set the milliammeter reading to the maximum retransmission level determined
by the
Retransmission Type
Press
Press
are not important and should only be used to determine display reading
parameter below.
Adjust RTX Zero
setting – see Section 7.6. For example, when the
is set to 4–20, adjust the milliammeter reading to 4mA.
setting – see Section 7.6. For example, when the
Retransmission Type
is set to 4–20, adjust the milliammeter reading to 20mA.
to return to the top of the
to advance to the
Operating Page.
8 CALIBRATION
Electrical Calibration Page.
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