Endress+Hauser Gammapilot FMG50 - Page 61

Gammapilot FMG50 Commissioning
Endress+Hauser 61
The type of calibration has already been selected in the "Measurement settings" section
The Gammapilot FMG50 does not have a Wizard for recalibration. Nevertheless, a
recalibration can be performed easily. See "Density recalibration for multi-point
calibration"
Beam path length
The length of the beam path in the medium to be measured is specified here.
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Examples:
If the beam passes through the pipe at an angle of 90°, this value corresponds to the
internal pipe diameter. If the beam passes through the pipe at an angle of 30° in order to
increase the sensitivity of the measurement, the length of the beam path corresponds to
twice the internal pipe diameter.
The unit of length can be defined in the "Measurement settings" section
Multi-point calibration
Up to four density calibration points can be recorded in a multi-point calibration. The
procedure is the same for all four calibration points. The first of the four possible
calibration points is described below.
Calibration density point 1-4
1. The radiation is switched on and the beam path is filled with medium of a known
density.
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The calibration can be performed by pressing the "Start density point calibration"
button. The measurement then starts automatically and continues, at the very
maximum, for as long as has been configured for the calibration time. However,
the process can also be stopped manually by pressing the "Stop calibration"
button.
The calibration stops automatically as soon as a million pulses have been
totalized.
Alternatively, the pulse rate can also be entered directly.
For the "Next" button in the Wizard to be enabled, the value must, however, be
changed from the start value, at least temporarily.