Schmidt
Mess- und Regeltechnik
©2013 Schmidt
Mess- und Regeltechnik
Fon 0 67 32 - 91 91 20 Fax 0 67 32 - 96 24 42 [email protected]
6
Operation Manual Flow Transmitter DW-D
4.8 Programming the interface
Under point of menu
DWD ADR:
the address of each device can be programmed (selection
by
, input by P). For more details please see our data sheet for devices with interface. It is
only added to devices which are equipped with this option. (Also see point 3.5)
4.9
Mounting the ferrite
The HSW flow transmitter DW-D is EMI certified and comes up to the corresponding norm.
The EMI directive will only be achieved, if the provided ferrites are mounted as mentioned
under 3.1 3.2 3.33 and 3.4. If not, serious malfunctions can be appeared depending on the
mounting position. (q.v. 1.2)
IMPORTANT! Always mount the ferrite
4.10 Protection on data loss
If your device is operated on incorrect EMI conditions, it could come to data loss respectively
damages of coded data in extreme cases.
As the item need these data for a correct function there hereby is an anticipate protection.
In this case the item is showing
K DATA MISSING
.
So that this information is available for the occupant, even in case of a use of the analogue-
voltage or frequency output, impermissible values will normally be transferred. These are
1mA, 20V, respectively 0 Hz.
In order to re-establish the function of the item in such a case, the necessary software is
saved additionally for safety reasons. The software can be load again with the menu item
FACTORY RESET
. Therefore push the button
or
in the menu
FACTORY RESET
. You
will be asked to start the action (Y) button
or to break up (N) button
.
ATTENTION! When starting the application, all adjusted data as switch points, totalizer
value etc. will be lost. (Reset to the original factory setting)
Please consider this and keep the data before starting the procedure in mind. After the
reestablishment has been started, you will get informed about the status of the procedure.
When the flow indication on the display appears, the operation is over. The device is working
as usual again. Please consider that e.g. the switch points have to be new installed again.
We would like to point out, that the data loss occurs only if the item is used under forbidden
conditions. Therefore it is really necessary to open corresponding arrangements in order to
avoid a new data loss.
This could be: mounting the provided ferrites, installation of the device at another position,
changing the cabling within the installation (no measure or feed lines of the transmitter near
high voltage feed cable). Reducing of radiation or magnetic field or even the installation of
suitable electrostatic shields.
