Separation of 0(4) ... 20 mA Standard Signals
With the Loop-Powered Isolator DH 1000 DRAGO is extending its offer on high-accuracy and high-reliable components of the interface technique.
- Galvanic isolation across input and output
Protection against erroneous measurements due to parasitic voltages or ground loops - No power supply required
Saving costs since wiring is reduced and line influences are omitted - Extremely compact design, 1- and 2-channel versions
Only 6.3 mm DIN-rail per channel - High accuracy
No falsification of measured signal - Protective Separation
Protects service personnel and downstream devices against impermissibly high voltage - Maximum reliability
No maintenance costs - 5 Years Warranty
The loop-powered isolator DH 1000 provides galvanic separation for 0(4)...20 mA standard signals, while transferring the measurement signal to the output with a high degree of accuracy. In this way, the unit avoids interference voltage carry-over, effectively suppressing interference. The very low drop voltage of 2.0 V, a high level of accuracy and a compact design all work together to make the DH 1000 the first choice in system design.
The slim housing with 12.5 mm width for one or two channels saves space in your switch cabinet and facilitates by the practical plug-in screw terminal blocks the assembly. The DH 10X2 requires only 6.3 mm DIN-rail space per channel.
Intelligent design and their consequential avoidance of highly integrated components result in extremely long service lives and reliability without any falsification of the measurement signal.
To protect both maintenance personnel as well as downstream equipment against impermissibly high voltages, the DH 102X offers Protective Separation with a test voltage of 4 kV AC.
The DH 1000 requires no additional power supply since the auxiliary power is obtained from the input signal without distorting it. This not only saves costs during installation, but also increases reliability.
Input
| Input signal | 0(4) ... 20 mA / max. 30 V |
| Operating current | < 20 µA |
| Voltage drop | < 2,0 V |
| Overload | ≤ 100 mA, 30 V |
Output
| Output signal | 0(4) ... 20 mA / max. 28 V |
| Response time | Approx. 5 ms at 500 Ohm load |
| Ripple | < 10 mVrms |
General Data
| Transmission error | 0,1 % of final value | |
| Load error | 0,03 % of measured value / 100 Ohm load | |
| Temperature coefficient 1) | 15 ppm/K of measured value / 100 Ohm load | |
| DH 101X Test voltage | 1,5 kV, 50 Hz | |
| DH 102X Test voltage | 4 kV, 50 Hz | |
| Working voltage 2) (Basic Insulation) |
Up to 600 V AC/DC for overvoltage category II and pollution degree 2 acc. to EN 61010–1 between all circuits. | |
| Protection against electrical shock 2) | Protective separation according to EN 61140 by reinforced insulation in accordance with EN 61010–1 up to 300 V AC/DC for overvoltage category II and pollution degree 2 between all circuits. | |
| Ambient temperature | Operation Transport and storage |
–20 °C to +70 °C –35 °C to +85 °C |
| EMC 3) | EMVG, EN 61326-1 | |
| Construction | 12.5 mm housing, protection class: IP 20 | |
| Weight | Approx. 100 g | |
- Average TC in specified operating temperature range
- As far as relevant the standards and rules mentioned above are considered by development and production of our devices. In addition relevant assembly rules are to be considered by installation of our devices in other equipments. For applications with high working voltages, take measures to prevent accidental contact and make sure that there is sufficient distance or insulation between adjacent situated devices.
- Minor deviations possible during interference
Pluggable screw clamp terminals
Metal lock for fasting on 35 mm DIN rail
Wire cross-section max. 2.5 mm², Multi-wire connection max. 1 mm² (two wires with same cross-section)
| Channel 1 | Channel 2 | ||
| 1 | Input + | 3 | Input + |
| 2 | Input - | 4 | Input - |
| 5 | Output + |
7 | Output + |
| 6 | Output - | 8 | Output - |
| Devices | Order No. |
| Loop-Powered Isolator DH 1000, 1-channel | DH 1011 AG |
| Loop-Powered Isolator DH 1000, 2-channel | DH 1012 AG |
| Loop-Powered Isolator DH 1000, 1-channel protective separation, test voltage 4 kV ~ |
DH 1021 AG |
| Loop-Powered Isolator DH 1000, 2-channel protective separation, test voltage 4 kV ~ |
DH 1022 AG |