Brief Description; Technical Data - Camille Bauer SINEAX B 811 Betriebsanleitung

4. Brief description

The power supply unit SINEAX B 811 provides the auxiliary
DC for two-wire transmitters and transfers the measured
variable unchanged to the electrically insulated output.
Conversion to a different signal range such as 0...5 mA or
1...5 V (signal converter) is also possible.
Some versions of the SINEAX B 811 are designed for FSK
communication. They are used in conjunction with "intel-
ligent "two-wire transmitters which are capable of dialogue
and operation according to the FSK principle and the HART
or user-specifi c protocol.
The series also includes "intrinsically safe" versions
[EEx ia] IIC with an intrinsically safe measurement/supply
circuit. These operate in conjunction with intrinsically safe
two-wire transmitters located in explosion hazard areas.
Provision is made for monitoring the measurement/supply
circuit to detect short and open-circuits. Either of these faults
is signalled by the fault signalling relay AF and the red LED.
The output signals A1 and A12 can be set on the DIP switches
to have a linear increasing or decreasing response.
The device fulfi ls the protection requirements of the EMC
guidelines (89/336/EWG). It bears the CE symbol for EMC.

5. Technical data

Input circuit (MSK)
Signal range I :
E
Supply voltage U
24 V ± 7% with standard (non-Ex) version,
not designed for communications protocol
24 V ± 7% with standard (non-Ex) version,
designed for FSK communication
> 16.9 V with Ex versions,
not designed for communications protocol
> 16.4 V with Ex versions,
designed for FSK communication
Current limiter:
Max. line resistance:
22
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4...20 mA DC
(at I = 20 mA):
S E
Electronic
At I > 30 mA, U is switched to
E S
0 V for approx. 1 s.
U is then automatically
S
readjusted to its set-point
The maximum line resistance
R permissible between the
Line
two-wire transmitter and the
supply unit depends on the
voltage difference U
U – U
S
R max. =
Line
20 mA
U = Supply voltage
S
for 2-wire transmitter
U = min. operating voltage of
M
the 2-wire transmitter
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Measuring output
Output signals A1 and A12
(see section "10. Electrical connections")
The output signals A1 and A12 can be load-independent DC
voltages U or currents I
A
A1 and A12 are not electrically insulated; the same value is
1
available at both outputs.
DC voltage signals U
Standard ranges for U
Non-standard ranges:
Short-circuit current:
Load-capacity U
Load impedance U
Residual ripple:
DC current signals I
Standard ranges for I
Non-standard ranges:
Open-circuit voltage:
Burden voltage I
*When a hand-held terminal is connected to the fi eld 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 disconnected
by changing the position of a jumper. The full burden voltage
of 15 V is then available at output A1 instead of 10 V.
External resistance I
Burden voltage I
External resistance I
Residual ripple:
Response time (IEC 770):
Output characteristic:
– U :
S M
M
1 FSK = Frequency Shift Keying
.
A
A
: 0...5, 1...5, 0...10 or 2...10 V
A
0...> 5 to 0...15 V
resp. live-zero
> (1...5) to 3...15 V
≤ 40 mA
/U : 20 mA
A1 A12
/U : R // R [kΩ] ≥
A1 A12 ext A1 ext A12
< 1% p.p., DC ... 10 kHz
A
: 0...20 mA or 4...20 mA
A
selected by jumpers
0...1 to 0...< 20 mA
resp. live-zero
0.2...1 to < (4...20) mA
Approx. – 7...+ 22 V
: 15 V without communication
A1
10 V (15 V)
with communication*
15 V (10 V)
: R max. [kΩ] =
A1 ext
I
I = Output circuit full-scale
AN
value
: < 0.3 V (fi eld indicator)
A12
: R max. [kΩ] =
A12 ext
I
< 1% p.p., DC ... 10 kHz
Approx. 200 ms
Linear
U [V]
A
20 mA
[mA]
AN
0.3 V
[mA]
AN