Copyright 2013 Baker Hughes Company.
English–DPI
620G Instruction Manual | 75
Run Procedure
The Input signals should relate to the Reference signal values with a linear or square root
transfer characteristic.
•
ERROR TYPE
This the deviation from which the transfer characteristic is to be calculated. This can be
displayed as one of the following options:
a. % Span - a percentage of the Input signal span.
b. % Rdg - a percentage of the Input signal reading.
•
LINEARITY
This is the transfer characteristic from Reference to Input signal. Select from the following
options:
a. Linear - a proportional response.
b. Square Root - often found in flow sensors.
•
TOLERANCE
This provides test limits for the deviation from the transfer characteristic.
8.1.4 Analysis Function
Set Reference channel and Input channel parameters (refer to Section
8.1.3),
and return to CHANNEL SETUP screen.
Select the Start
button.
The Analysis window displays the following:
•
The deviation of each Input channel from the ideal transfer characteristic.
•
A tolerance limit test icon
Pass
(within tolerance test limit)
Fail
(outside tolerance test limit)
To check the full range of the device:
1. Step the Reference signal value through its range.
2. Check the Analysis window at each step.
3. If the Reference is sourced from the calibrator, maximize the channel window to change the
Reference value.
4. Return to the Analysis window.
5. When the analysis is complete exit the window by selecting
.
8.2 Run Procedure
The purpose of the ‘Run Procedure’ is to perform calibration procedures which have been
downloaded from the 4Sight2™ software. The 4Sight2™ calibration procedure contains all the
values required to calibrate a device under test (test points, ramp time etc).
The ‘Run Procedure’ function can be accessed from the Dashboard by selecting the 4Sight2™
icon.
The same calibration procedure can be used for all the applicable devices under test. To use the
Run Procedure function, the following items are required:
•
A copy of the 4Sight2™ Calibration Software.
•
USB lead: mini USB type B (DPI
620 Genii) to USB type A (PC).
The DPI
620 Genii calibrator device driver is supplied with the 4Sight2™ calibration software.
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