详细说明 标准电流信号传输隔离器 IsoTrans® B 48 knick
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20 mA transmission with electrical isolation in 6-mm terminal housing
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Product description
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Input voltage
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Facts
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Product Line
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Dimension drawings
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Schematic diagram
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Specifications
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Downloads
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The Task
Preventing measuring errors or even destruction of the system normally requires floating connection of the sensors and actuators to the sensitive MSR electronics.
The Problem
was solved up to now with additional devices for electrical isolation after the routing and distributor level.
The Solution
is the 6 mm wide IsoTrans® B 48 isolating terminal. It fulfills all tasks set for modern terminals and safely and reliably isolates 0(4) to 20 mA signals using loop power without falsifying the measuring signal.
The Connections
use Z-springs and allow simple, fast and safe connection of the lines.
The Technology
The extremely narrow housing with a width of just 6 mm could by achieved by constantly improving the circuit concept of our tried-and-tested isolators which draw their power as a voltage drop from the measuring signal and use a specially developed flat-core transformer. This allow connecting up to 166 isolating terminals per meter of top-hat rail.
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Facts |
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- Substantial costs and space-savings due to the omission of a whole installation stage
- Minimum wiring work due to loop-powered electrical isolation and the combination of a terminal and isolator in one device
- Fast, simple and safe wiring using Z-springs
- High level of safety thanks to proven switching method
- Galvanic isolation: protection against incorrect measurements or damage to the measuring system caused by parasitic voltages
- Extremely compact design: at just 6 mm in width the modular housing allows up to 166 channels per meter
- Easy to use and to maintain: simple and fast installation due to innovative Z-springs
- No power supply required: cost saving due to lower wiring requirement, no mains influences
- High accuracy: no falsification of measuring signal
- 5-year warranty
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Product line |
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Devices |
Input |
Output |
Order no. |
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IsoTrans® B 48 |
0 ... 20 mA, |
0 ... 20 mA, |
B 48 K1 |
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4 ... 20 mA |
4 ... 20 mA |
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Power supply |
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None, supply from input signal |
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Accessories |
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End plate |
Shock-hazard protection for the last isolating terminal |
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ZU 0286 |
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in the row, required 1x per application! |
Dimension drawings and terminal assignments
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Specifications |
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Input data |
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Input |
0 ... 20 mA (linear transmission up to 22 mA) |
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Operating current |
<100 µA |
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Voltage drop |
Approx. 2.7 V at 20 mA |
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Overload |
50 mA, 15 V |
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Output data |
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Output |
0 ... 20 mA, ≤500 ohms |
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Residual ripple |
<10 mVrms |
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Transmission behavior |
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Transmission error |
<0.1 % full scale |
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Load error |
<0.05 % meas.val. / 100 ohms |
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Response time (T99) |
Approx. 5 ms at 500 ohms load |
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Temperature coefficient 1) |
<0.005 %/K full scale per 100 ohms load (reference temperature 23 °C) |
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Isolation |
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Test voltage |
510 V AC |
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Working voltage |
100 V with overvoltage category II and pollution degree 2 according to EN 61010-1 |
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Standards and approvals |
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EMC2) |
89/336/EEC directive, EN 61326 |
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Other data |
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Ambient temperature |
Operation: |
–25 ... +60 °C also when mounted in a row |
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Transport and storage: |
–40 ... +85 °C |
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Housing |
Terminal housing, 6 mm width, connection using Z-spring technology |
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See dimension drawings for further measurements |
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Protection class |
IP 20 in row or with end plate |
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Mounting |
For 35 mm top hat rail EN 50022 |
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see dimension drawings for conductor cross section |
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Weight |
12 g |
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1) Average TC in specific working temperature range –25 ºC ... +60 °C |
2) Applies to 4 ... 20 mA, slight deviations are possible while there is interference |
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