G
Measuring transducers, calibrateable, with active output
Output: ............................................. 4...20 mA
Connection: ..................................... 2wire connection
Auxiliary energy: ............................ 15 ... 36 V DC ± 10 %,
Working resistance: ...................... Ra (Ohm) = (Ub14 V) ⁄ 0.02 A
Output: ............................................. 0 - 10 V
Connection: ..................................... 3wire connection
Auxiliary energy: ............................ 24 V AC ⁄ DC ± 20 %
Working resistance: ...................... minimum load resistance 5 kOhm
Accuracy: ......................................... ± 0,8 K
Measuring element: ....................... see table
Operating temperature: ............... transmitter 30...+ 70 °C
Linearisation: .................................. temperature linear
Linearity error: ............................... ± 0.3 % of measuring range
Standards: ....................................... CE conformity,
TEMPERATURE RANGES:
When selecting measuring transducer ranges,
it is necessary to ensure that the maximum temperatures
permissible for sensor ⁄ enclosure are not exceeded !
Ambient temperature for measuring transducers:
- 30 ...+ 70 °C
Apparent ohmic resistance =
Voltage supply – internal current consumption (7.5 V)
20 mA
SUPPLY VOLTAGE:
For operating voltage reverse polarity protection, a oneway rectifier
or reverse polarity protection diode is integrated in this device variant.
This internal oneway rectifier also allows operating 0 10 V devices
on AC supply voltage.
The output signal is to be tapped by a measuring instrument. Output
voltage is measured here against zero potential (0 V) of the input voltage!
When this device is operated on DC supply voltage, the operating volt
age input UB+ is to be used for 15...36 V DC supply and UB– or GND for
ground wire!
When several devices are supplied by one 24 V AC voltage supply, it is to
be ensured that all "positive" operating voltage input terminals (+) of the
field devices are connected with each other and all "negative" operating
voltage input terminals (–) = reference potential are connected together
(inphase connection of field devices). All outputs of field devices must be
referenced to the same potential !
In case of reversed polarity at one field device, a supply voltage short
circuit would be caused by that device. The consequential shortcircuit
current flowing through this field device may cause damage to it.
Therefore ensure correct wiring !
supplied from 4...20 mA loop,
residual ripple, stabilised ± 0.3 V
according to DIN IEC 751
electromagnetic compatibility
according to EN 61326: 2006,
according to EMC directive
2004 ⁄ 108 ⁄ EC
Load resistance diagram
800
700
600
500
400
300
250
200
50
10
15
20
Operating voltage (V DC)
Dependency of output voltage on output current
12
Ua (V)
10
8
6
4
2
0
0
0.5
1.0
1.5
Connecting scheme
Power supply
AC 24V~
0V
DC 15-36V = GND
Connecting scheme
Circuitry
Power supply
AC 24V~
0V
DC 15-36V = GND
Load resistance diagram
4 ... 20 mA
Admissible
range
25
30
35 36 40
Ia (mA)
2.0
2.5
3.0
3.5
4.0
4.5
Individual operation
Circuitry
V
Parallel operation
Circuitry