Rh eo n i k M esst ech n i k
RE V . L O ct o b er 2014
.
RHEONIK Coriolis Flowmeter
Operation Manual RHE 07, 08, 11
Page
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 reconfig-
ure the electronics 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, temperature 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 third or 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
