O Diagnostics And Calibration; I/O Diagnostics; I/O Calibration; Calibration Points - ABB SpiritIT Flow-X Instruction Manual

5 4 S P I R I T
12 I/O Diagnostics and calibration
This chapter describes the diagnostics and calibration features
for the digital and analog I/O.

I/O diagnostics

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A Spirit Flow-X flow computer with a standard Spirit
application provides a set of displays with diagnostic
information on the digital and analog I/O of the flow modules
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that are part of the Spirit Flow-X flow computer.
To access the diagnostics displays:
 On the LCD or web display select Diagnostics, IO from the
main menu.
 Select the applicable flow module (only in case of a flow
computer with more than one flow module)
 Select the type of I/O

I/O calibration

The analog inputs, PT100 inputs and analog outputs can be
calibrated at up to 5 calibration points.

Calibration points

For each type of I/O up to 5 calibration points can be defined.
For analog inputs and analog outputs the calibration points are
defined as percentage of span, while for PT100 inputs the
calibration points are defined in ᵒ C (metric applications) or ᵒ F
(metric applications). The number of calibration points may
range from 1 through 5.
The reference values should be in an ascending order, e.g. 0, 50,
100 %. Non-used reference values shall be set to 0. If a reference
value is smaller than or equal to the previous value, then this
point and any further points are not taken into account.
Typical calibration points for analog inputs and outputs are:
 0, 0, 0, 0, 0
A single offset value is applied over the entire range
 0, 100, 0, 0, 0
Calibration at 2 points, low and high range
 0, 50, 100, 0, 0
Calibration at 3 points, low, mid and high range
 0, 25, 50, 75, 100
Calibration at 5 points, low and high range and 3 mid ranges
Display → IO, Module <x>, Calibration, Settings
Display → Calibration, Module <x>, Settings
With x the applicable module number, i.e. the flow module to
which the signal is physically connected
I T F L O W - X I N S T R U C T I O N M A N U A L | I M / F L O W X - E N
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Analog 750 The calibration points for the calibration
input cal. of the 6 analog inputs
point 1..5
PT100 750 The calibration points for the calibration
calibration of the 2 PT100 inputs
point 1..5
Analog 750 The calibration points for the calibration
output cal. of the 4 analog outputs
point 1..5
Inactivity 750 The input selected for calibration is
timeout automatically reset in case of inactivity
limit longer than this limit. Enter 0 to disable
the automatic reset function.
If the calibration points are modified, the calibration of all
applicable inputs initially remains unaltered. At the start of the
next calibration of one of these inputs, any of the points that
have been altered, added or removed since the last calibration
are reset for this input only. E.g. when an analog input has been
calibrated at 5 points (reference values at 0, 25, 50, 75 and 100
%) and the number of calibrations has been redefined to 3
points (e.g. 0, 50, 100, 0, 0 %), then at the start of the next
calibration the 2nd and 3th calibration values will be reset to 50
and 100 % respectively and the 4th and 5th calibration values will
be reset to zero (= not used).

Analog input calibration

The procedure to calibrate an analog input is based on a loop
calibrator that, depending on the type of input, can provide a 4-
20 mA, 0-20 mA, 1-5 Vdc, or 0-5 Vdc signal.
During calibration the process input (e.g. pressure,
temperature) that uses the analog input will follow the
calibration value. So, before putting an input into calibration,
please be sure that one of the following conditions is met:
 There's no flow
 The run has been set to maintenance mode
 The process value has been set to override mode
 The input has been frozen using the 'Freeze all analog and
PT100 inputs' command
1 Go to the analog input calibration display.
Display → IO, <Module x>, Calibration, Analog inputs
Display → Calibration, Module <x>, Analog inputs
With x the applicable module number, i.e. the flow module to
which the signal is physically connected.