Due to the easy selection of the input and output ranges, the new universal power pack and the ultra-small housing the Isolation Amplifier is suitable for flexible use. High reliability and Protective Separation are further characteristics that make the DB 6250 unrivaled.
The order key allows you to select the desired input and output ranges to which the unit will be adjusted at the factory before delivery. These can be easily reconfigured at any time by means of DIP switch settings. Subsequent readjustment or measured range compensation can then be performed at the zero/scan potentiometers on the front panel. Also the cut-off frequency can be adapted to the measurement task by using the DIP Switch.
The small housing with 12.5 mm width saves space in your switch cabinet and facilitates by the practical plug-in screw terminal blocks the assembly. For range setting a simple housing unblocking is installed which makes it possible to reach easily all control elements on the mounting rail.
The new universal power pack for 20 to 253 V AC/DC means the DB 6250 can be used anywhere in the world, with all mains power supplies. The unit’s high efficiency contributes significantly to reducing the unit’s own heat generation. This is reflected in extremely high reliability and long-term stability. A green LED on the front of the unit has been provided to monitor the power supply.
Product line
Devices | Order No. |
---|---|
Inverse Isolation Amplifier, configurable | DB 6250 AG |
Technical Data
Input
Voltage | Current | |
Input signals (terminal/switch selectable) |
0 to 10 V, 2 to 10 V 0 to 5 V, 1 to 5 V |
0 to 20 mA, 4 to 20 mA 0 to 10 mA, 2 to 10 mA |
Input resistance | Approx. 1 MOhm | Approx. 25 Ohm |
Input capacitance | Approx. 1 nF | Approx. 1 nF |
Overload | Voltage limitation via 30 V Z-Diode, max. continuous current 30 mA |
≤ 200 mA |
Output
Voltage | Current | |
Output signals, inverse characteristic (switch selectable) |
0 to 10 V, 2 to 10 V 0 to 5 V, 1 to 5 V |
0 to 20 mA, 4 to 20 mA 0 to 10 mA, 2 to 10 mA |
Load | ≤ 10 mA (1 kOhm bei 10 V) | ≤ 12 V (600 Ohm bei 20 mA) |
Linear transmission range | –2 to +110 % | |
Residual ripple | < 10 mVrms |
General Data
Transmission error | < 0.1 % full scale | |
Temperature coefficient 1) | < 100 ppm/K | |
Zero/Span compensation | ± 10 % | |
Cut-off frequency -3 dB | 10 kHz, switchable to 30 Hz | |
Response time T99 | 80 µs 20 ms | |
Test voltage | 4 kV AC, 50 Hz, 1 min., Input against output against power supply |
|
Working voltage 2) (Basic Insulation) |
1000 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 600 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 (-4 to +158 °F) –35 °C to +85 °C (-31 to +185 °F) |
Power supply | 20 to 253 V AC/DC, | AC 48 to 62 Hz, approx. 2 VA DC approx. 1.0 W |
EMC 3) | EN 61326-1 | |
Construction | 12.5 mm (0.49″) housing, protection type: IP 20 mounting on 35 mm DIN rail acc. to EN 60715 |
|
Weight | Approx. 100 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 current
- 2 −Input current
- 3 +Input voltage
- 4 −Input voltage
- 5 +Output
- 6 −Output
- 7Power supply AC/DC
- 8Power supply AC/DC
Housing with pluggable screw terminals
Wire cross-section max. 2.5 mm², Multi-wire connection max. 1 mm² (two wires with same cross-section)