30
English
1
6
2
7
5
4
3
13
14
9
10
8
15
Input circuit
4…20 mA
2-wire
transmitter
Safe area
4…20 mA
FSK
FSK
X
U
S
+
–
A12
AF
+
–
X
+
–
A1
PLS/
SPS
~ (+)
H
~ (–)
1
6
2
7
5
4
3
13
14
9
10
8
15
4…20 mA
Safe area
4…20 mA
Input circuit
2-wire
transmitter
Hazardous area
FSK
FSK
X
U
S
+
–
A12
AF
+
–
X
+
–
A1
PLS/
SPS
~ (+)
H
~ (–)
Fig. 13. SINEAX Type 811-1..
2
.... .,
intrinsically safe input circuit,
supply voltage U
S
16.4 V DC,
designed for FSK.
Processor connected to
output A1
.
Fig. 12. SINEAX Type 811-1..
2
.... .,
non-Ex input and output circuits,
supply voltage U
S
24 V DC,
designed for FSK.
Processor connected to
output A1
.
10.2 Connection of the hand-held terminal HHT to
field output A12
The FSK version of the power supply unit SINEAX B 811 can
also transmit a frequency modulated digital signal in addition
to the analogue signal and the power supply. Depending on
the version of the power supply unit, connect the hand-held
terminal HHT to the communication output terminal A12 as
shown in either Fig. 10 or Fig. 11.
When a hand-held terminal is connected to field
output A12, the voltage across the burden at output
A1 reduces to 10 V. Digital communication requires
a minimum burden at output A1 of 250
Ω
. A 250
Ω
resistor is therefore connected across the output
circuit. If the load of the burden across output A1
already exceeds 250
Ω
, the resistor can be dis-
connected by changing the position of a jumper (see
Section 11.2 “Communication connector”). The full
burden voltage of 15 V is then available at output A1
instead of 10 V. Also observe the rules for connecting
to the communication system.
Output A12 is no longer available on this version as a second
measuring output. It is
not
permissible to connect an ammeter
to output A12.
10.3 Communication connector on A1
Depending on the version of the power supply unit, connect
the processor to either Fig. 12 or Fig. 13.
The burden of the communication circuit must be at
least 250
Ω
. Also observe the rules for connecting to
the communication system.
10.4 Connection of the hand-held terminal HHT to
a non-FSK power supply unit SINEAX B 811
This version of the power supply unit is equipped with
terminals 2 and 7 which are electrically connected to terminals
1 and 6. Depending on the version of the power supply unit,
connect the hand-held terminal HHT as shown in either Fig.
8 or Fig. 9.
It is important to note the details on the conformity
certificate for the HHT in the case of power supply
units SINEAX Type 811-1..0 .... ., with intrinsically
safe measurement/supply circuit (Fig. 9). Also
observe the rules for connecting to the communi-
cation system.
10.5 Connection of power supply leads
Connect the power supply to terminals 5 ( –
~ ) and 10 ( +
~ ).
A two-pole switch must be included in the supply connection
where facility for switching SINEAX B 811 off is desired.
Note:
An external supply fuse with a rupture capacity
≤
20 A must be provided for DC supply voltage
< 125 V.
