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]
3
Operation Manual Flow Transmitter DW-D
3.2 Analogue output (4-20 mA)
Connection is to block KL 1 according to the drawing. At the connection cable a ferrite must
be fixed. The ferrite is included in delivery.
3.3 Voltage output (0-10 V)
Connection is to block KL 1 according to the drawing. (See reference point 4.3) At the
connection cable a ferrite must be fixed. The ferrite is included in delivery.
3.4
Frequency output
Connection is to block KL 1 according to the drawing. (See reference point 4.3) At the
connection cable a ferrite must be fixed. The ferrite is included in delivery.
3.5 Connecting the relais
Relays can be connected via block KL 2 as shown on the drawing. At the connection cable a
ferrite must be fixed. The ferrite is included in delivery.
3.6 Interface
The DW-D is available to special order with RS232C interface. The special connection cable
is just connected with the device. (See reference point 4.7)
4.
TUNING THE DW-D
The device is equipped by 3 buttons on the front side of the enclosure. The button P has the
function to choose a point of the menu and to take over the wished values. With the buttons
and
you can set a value. Button
increases value. Button
decreases the value. Pressing
this button one time the value changes for one digit. If you keep the buttons on hold the value
is changing continuously. After some time velocity is increasing. At some points of the menu
the DW-D informs you which buttons have to be pressed as next step. For example
PIN [+/-]
,
3.
ELECTRONICAL CONNECTIONS
Remove the rear access cover to gain access the
connector blocks.
(see drawing right)
Block KL 2 is for connecting the relays.
Block KL 1 is for connecting power supply and output
signals. The scetch shows the relays in position of no flow
respectivly flow is under the related switch point level.
Feed the cable through the corresponding cable entry.
3.1 Power Supply
The supply-voltage is 24VDC
10%. Connection is to block
KL 1 like described at drawing. In order to prevent the
electronic from impermissible potential between pipe and
device, the power supply device must be connected with
earth. The connection is prevented from mixing the poles.
At the connection cable a ferrite must be fixed with one
coil. The ferrite is included in delivery.
Fuse 2,5A
+
24
V
DC
0V
DC
-F
req
ue
nc
y
-0
-10
V
/4
-20
m
A
+
F
req
ue
nc
y
-0
-10
V
/4
-20
m
A
