DatasheetFor applications where one signal combination only is used, the Isolation Amplifier DB 68 offers a cost-effective alternative.
A cross-connector for the auxiliary power supply ensures fast and easy installation. The slim housing with 11.2 mm width saves significant space on the DIN-rail. If required a measuring range compensation can be performed at the Zero/Scan potentiometers behind the front cover.
Analog signal processing guarantees precise measured values with short response times and outstanding signal reproduction at the output. Protective Separation and the 24 V AC/DC power supply make the DB 68 universally applicable for all measurement and industrial applications, as well as for building automation.
Product line
| Devices | Order No. | ||
|---|---|---|---|
| Bipolar Isolation Amplifier | DB 68 P – | X | X |
| Input: 0 … 10 V | 0 | ||
| Input: 2 … 10 V | 6 | ||
| Input: ± 10 V | 1 | ||
| Input: 0 … 5 V | 3 | ||
| Input: 1 … 5 V | 7 | ||
| Input: ± 5 V | 2 | ||
| Input: 0 … 20 mA | 8 | ||
| Input: 4 … 20 mA | 9 | ||
| Input: ± 20 mA | 4 | ||
| Input: ± 10 mA | 5 | ||
| Output: 0 … 10 V | 6 | ||
| Output: 2 … 10 V | 7 | ||
| Output: 0 … 5 V | 5 | ||
| Output: 1 … 5 V | 8 | ||
| Output: 0 … 20 mA | 2 | ||
| Output: 4 … 20 mA | 4 |
Technical Data
Input
| Input signal | ±10 V, ±5 V, ±20 mA, ±10 mA see product line 0 to 10 V, 0 to 5 V, 0 to 20 mA 2 to 10 V, 1 to 5 V, 4 to 20 mA |
|
| Input resistance | Voltage input Current input |
approx. 1 MOhm approx. 5 Ohm |
| Overload | Voltage input Current input |
≤ 250 V ≤ 200 mA |
Output
| Output signal | 0 to 10 V, 0 to 5 V, 0 to 20 mA see product line 2 to 10 V, 1 to 5 V, 4 to 20 mA |
|
| Load | Voltage output Current output |
≥ 2 kOhm ≤ 500 Ohm |
| Residual ripple | < 10 mVrms | |
General Data
| Transmission error | < 0.2 % full scale | |
| Temperature coefficient 1) | < 0.02 %/K | |
| Zero/Span Compensation | ± 3 % | |
| Cut-off frequency -3 dB | 500 Hz | |
| Response time T99 | < 2 ms | |
| Test voltage | 3 kV AC, 50 Hz, 1 min., input against output against power supply |
|
| Working voltage 2) (Basic Insulation) |
600 V AC/DC for overvoltage category II and pollution degree 2 acc. to EN 61010–1 |
|
| 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 +60 °C (–4 °F to +140 °F) –35 °C to +85 °C (–31 °F to +185 °F) |
| Power supply | 24 V AC/DC, ± 15 % | AC: 48 to 62 Hz, ca. 2 VA DC: approx. 0.7 W |
| EMC 3) | EN 61326 -1 | |
| Construction | 11.2 mm (0.44″) housing, protection class: IP 20 mounting on 35 mm DIN rail acc. to EN 60715 |
|
| Connections | Wire cross-section max. 2,5 mm² | |
| Weight | Approx. 50 g | |
- Average TC related to full scale value in specified operating temperature range, reference temperature 23 °C
- For applications with high working voltages, ensure there is sufficient spacing or isolation from neighboring devices and protection against electric shocks.
- Minor deviations possible during interference.
Block diagram
Dimensions
Terminal assignments
- 1 +Input
- 2 −Input
- 3–
- 4–
- 5 +Output
- 6 −Output
- 7Power supply 24 V AC/DC
- 8Power supply 24 V AC/DC