ABB 2600T Pressure Transmitter Series, User Manual

Page: 52 / 88

364xS User’s Manual 52
Operation
Removing PV scaling by Digital LCD Integral Display
Navigate the Digital LCD Integral Display menu, select Device Config > PV Scaling > Reset PV Scaling. To
accept the remove select OK and wait for the end (a bargraph will indicate the working progress).
)
Digital LCD Integral Display Keys sequence to Remove the PV Scaling: 2 – 2 – 3 – OK
Removing PV scaling by HHT
PV scaling removing by Hand Held Terminal is available. Please refer to the device manual for the
appropriate operations.
Removing PV scaling by PC
PV scaling removing by PC is available using dedicated Software. ABB can provide the references and the
Software. Please refer to the Software instructions for the appropriate operations.
Zero suppression
Two different methods can be used for Zero suppression:
Method 1 : after completion of the zero and span trim procedures, apply to the High Side connection (P2 as
default) a pressure equal to the pressure to be suppressed. Allow time for pressure stabilization and then
press the Zero local adjustment key (Z) located behind the terminal block for at least 2 second and release.
After this operation the digital milliammeter reading should be 4mA and the Upper Range Value
automatically moved to a value equal to the sum of the pressure to be suppressed and the previous
calibrated span.
Method 2 : use the zero and span procedure above but apply pressures equal to the Lower Range Value
(LRV) and then to Upper Range Value (URV), press for at least 2 second and release, the Zero local
adjustment key (Z) and Span local adjustment key (S) respectively.
Zero elevation
Two different methods can be used for Zero elevation:
Method 1 : after completion of the zero and span procedure above apply to the Low Side connection (P1 as
default) a pressure equal to the pressure to be elevated. Allow time for pressure stabilization and then the
Zero local adjustment key (Z) located behind the cover for at least 2 second and release After this operation
the digital milliammeter reading should be 4mA and the Upper Range Value (URV) is automatically moved to
a value equal to the sum of the pressure to be elevated and the previous calibrated span.
Method 2 : use the zero and span procedure above but apply pressures equal to the Lower Range Value
(LRV) and then equal to the Upper Range Value (URV) press for at least 2 second and release the Zero
local adjustment key (Z) and Span local adjustment key (S) respectively.
The LRV pressure will be applied to the Low Side connection (P1 as default) whereas the URV will be
applied to the Low Side (P1 as default) or to the High Side (P2 as default) connection depending upon the
whether the range is all negative or crosses zero.
Totalizer
The transmitter provides the possibility of a totalizer function when used for flow measurements. Two
Totalizer will be available: Permanent and Batch. The Permanent Totalizer can be protected by a password.
The Batch Totalizer is not protected and its reset is always possible.
Totalizer by Digital LCD Integral Display
To operate the Totalizer status
Navigate the Digital LCD Integral Display menu, select Totalizer > Totalizer status. and the used Totalizer
Status will be available. To modify select Edit then scroll the desired value with the up and down keys (see
the following table) and confirm with OK.