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IP2046/IM
Nov 2006
4.5 Diagnostic data. See also Appendix A2.
The MSP400 can display useful diagnostic data which can aid setting up and fault finding.
To aid interpretation of the data presented, the data will alternate with suitable text to remind the user
what data is being displayed.
The user is not able to change or edit any of the data shown in the diagnostic section of the menu.
To enter the diagnostic menu, the user should press the blue button → from the main display screen to
display the text “diAg”. The following information is available:
4.5.1 Press the green button ↓ to display the distance to target in the chosen base units (m, ft, in) which
the MSP400 is measuring regardless of the duty chosen for the instrument.
Note:
Pressing the red button ↵ at any time will return the user to the top level “diAg” screen; pressing it again
will return the user to the main display screen
4.5.2 Press the green button ↓ to scroll down to the next diagnostic data “LEUEL”.
This is the level in base units, which the MSP400 has calculated based upon the bottom reference and
the distance measured, regardless of the duty chosen for the instrument.
4.5.3 Press the green button ↓ to scroll down to the next diagnostic data “Echo. S”.
This is the echo size being received on a scale of 0 to 100.
The user should aim to achieve a value of greater than 10, although the MSP400 will operate at
values below this.
4.5.4 Press the green button ↓ to scroll down to the next diagnostic data “Echo. n”.
This is the number of echoes being received and can be useful indicator of the data being
processed by the MSP400.
A thorough understanding of ultrasonic level systems is required to interpret this data.
4.5.5 Press the green button ↓ to scroll down to the next diagnostic data “F”.
This is the frequency in kHz at which the transducer is operating, and should read between 49 &
58.
4.5.6 Press the green button ↓ to scroll down to the next diagnostic data “t”.
This is the temperature which is being recorded by the integral temperature sensor and which is
being used by the transmitter in calculating distance to target, unless an external temperature
probe connected in which case it is the temperature being measured by the external probe.
4.5.7 Pressing the green button ↓ again will return the user to the start of the diagnostic menu.
The user may now press the red button ↵ to return the instrument to the normal operating mode
with the display showing the PV, or may press and hold the blue button → for at least 2 seconds to
move to the Loop Test menu.