Endress+Hauser Proline t-mass 65 PROFIBUS DA, Operating Instructions Manual

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Proline t-mass 65 PROFIBUS DP/PA Commissioning
Hauser 85
Performing a zero point adjustment
1. Operate the system until operating conditions have settled.
2. Stop the flow (v = 0 m/s).
3. Check the shut-off valves for leaks.
4. Check that operating pressure is correct.
5. Using the local display/operating program, select the ZEROPOINT ADJUSTMENT func-
tion in the function matrix:
PROCESS PARAMETER

ZEROPOINT ADJUSTMENT
6. When you press
O
or
S
you are automatically prompted to enter the access code if the
function matrix is still disabled. Enter the code (factory setting = 65).
7. Use
O
or
S
to select START and press
F
to confirm. The zero point adjustment now
starts and is completed within a few seconds.
!
Note!
If the flow in the pipe is unstable, the following error message may appear on the dis-
play "ZERO ADJUST FAIL". The zero point adjustment has failed. The preconditions need
to be stabilised before attempting a new adjustment.
8. Back to the HOME position:
– Press and hold down Esc key (
X
) for longer than three seconds or
– Repeatedly press and release the Esc key (
X
).
Resetting a zero point adjustment
The currently stored zero point can be reset to the original factory value by using the RESET
option within ZERO POINT ADJUST.
Use
O
or
S
to select RESET and press
F
to confirm. The zero point adjustment is now reset.
7.10 Data storage device (HistoROM)
At Hauser, the term HistoROM refers to various types of data storage modules on
which process and measuring device data are stored. By plugging and unplugging such mod-
ules, device configurations can be duplicated onto other measuring devices to cite just one
example.
7.10.1 HistoROM/S-DAT (sensor-DAT)
The HistoROM/S-DAT is an exchangeable data storage device in which all sensor relevant
parameters
are stored, i.e., pipe type, diameter, serial number, flow conditoner, zero point.
7.10.2 HistoROM/T-DAT (transmitter-DAT)
The HistoROM/T-DAT is an exchangeable data storage device in which all transmitter
parameters and settings are stored.
Storing of specific parameter settings from the EEPROM to the HistoROM/T-DAT and vice
versa has to be carried out by the user (= manual save function). For detailed information
→
59.
7.10.3 Gas compensation input
The flowmeter can read the composition of the gas from the gas analyzer and automatically
update the first two gas components (e.g. GAS TYPE 1 and 2) in the programmed gas mix-
ture. This provides a more accurate measurement in case of varying compositions. For exam-
ple: varying methane and carbon dioxide components in a biogas application.