2.3.1 Visualize the points
➢ Go to the line “Show items” then press on OK.
The device displays the points which have been generated and compared with the standard.
2.3.2 Perform an internal generation (correction)
The internal correction allows to launch a series of setpoints defined by the GP500. The device generates 21 setpoints.
➢ Connect the “Generation” plugs of the GP500 on a standard device.
➢ Go to the line “Internal generation” then press on OK.
The GP500 generates the first setpoint.
➢ Compare the point generated by the GP500 to the standard.
➢ Press on OK, enter the value displayed by the standard with the numeric keypad then press OK.
The GP500 generates the second setpoint.
➢ Perform the same procedure for the next points.
To cancel a generation in progress:
➢ Press on Esc.
2.3.3 Define the number of external points
To perform an external correction, it is necessary to define the number of external points which will be carried out by the
GP500.
➢ Go to the line “Number of external items” then press on OK.
➢ With the high and low arrows, select the number of desired external points between 2 and 21.
➢ Press on OK to validate
2.3.4 Perform an external generation
➢ Connect a calibration pressure bench on the “Measurement” connections of the GP500.
➢ Also connect this calibration pressure bench to a standard device.
➢ Go to the line “External generation” then press on OK.
➢ Generate a setpoint with the calibration pressure bench.
The GP500 displays the measured value.
➢ Compare this value with the value measured by the standard device.
➢ Press on OK.
➢ Enter the value measured by the standard device then press on OK.
The GP500 goes to the second point.
➢ Generate a second setpoint with the calibration pressure bench.
The GP500 displays the measured value.
➢ Compare this value to the value measured by the standard device.
➢ Press on OK.
➢ Enter the value measured by the standard device then press on OK.
➢ Follow the same procedure for the next points.
The first point to compare must be the minimum value of the GP500 measuring range(-2499 Pa or -9999
Pa depending on the GP500 type) and the last point to compare must be the maximum value of the GP500
measuring range (+2499 or +9999 Pa depending on the GP500 type).
2.3.5 Delete the points
➢ Go to the line “Erase table” then press on OK.
An alert message appears : “Warning ! Erase calibration”.
➢ Select “Validate” or “Cancel” then press on OK.
2.4. Configure the measurement programs
The “Programs” function allows to define the number and the duration of the different stages to reach. It is possible to
save up to 20 different programs with 20 setpoints values (stages) by program.
Use of the GP 500 9
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