RHEONIK Messgeräte GmbH REV. I, Apr. 2004
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Operation Manual RHE 07, 08, 11
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24
2.1.4. Advanced setup and diagnostics
This menu will only be displayed after key #2 and #3 have been pressed simultaneously. The menu
has two options:
- Diagnostics (sensor RHM, I/O hardware)
- Basic level parameter setup (RHM sensor parameters, filtering, calibration settings,
corrections). It contains items that alter calibration parameters and items that reconfigure the elec-
tronics to perform different functions.
2.1.4.1. Setup and diagnostics
This menu has two options:
1) Set (I/O to a certain status or level)
2) Show (current I/O status / level)
For example in Set mode you can set the mA output to a certain value in order to then check the
output using a connected measuring device or a supervisory control and data acquisition.
In Show mode you can see the actual mA value the output should have at a certain flow rate, tem-
perature or density indication.
2.1.4.1.1. Sensor diagnostics
This function is helpful for start-up checking or for testing sensor malfunctions.
The single diagnostic displays are:
• Freq:
Sensor oscillation frequency in XXX.XXX Hz. With proper installation, constant fluid density and
no electrical or mechanical interference, this value should vary only at the second decimal after
the dot.
• Gate1:
Phase shift timer #1 in counts. *
• Gate2:
Phase shift timer #2 in counts. *
* The actual phase shift corresponding to massflow rate is calculated from the
difference between the Gate 1 and Gate 2 value.
• TmDiff:
Difference: Gate1 – Gate2
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