- DN 28 P–12
- DN 28 P–32
- DN 28 P–52
- DN 28 P–14
- DN 28 P–54
- DN 28 P–16
- DN 28 P–36
- DN 28 P–56
- DN28P–12
- DN28P–32
- DN28P–52
- DN28P–14
- DN28P–54
- DN28P–16
- DN28P–36
- DN28P–56
Isolation Amplifier DN 28
Isolation and Conversion of Standard Signals
The Isolation Amplifier DN 28 is used for isolation and conversion of 0 to 20 mA, 4 to 20 mA and 0 to 10 V standard signals.
- Cost optimized design
Economical separation for standard applications - Only 60 mm installation depth, 11.2 mm wide
Can be installed in economical standard terminal boxes - Fixed ranges, easy to use
Ready to use without any settings or adjustments - True 3-port separation
Protection against erroneous measurements due to parasitic voltages or ground loops - Protective Separation acc. to EN 61140
Protects service personnel and downstream devices against impermissibly high voltage - Unlimited use with 24 V AC/DC power supply
Universally applicable for all measurement and industrial applications - 5 Years Warranty
Defects occurring within 5 years from delivery date shall be remedied free of charge at our plant (carriage and insurance paid by sender)
For applications where one signal combination only is used, the Isolation Amplifier DN 28 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 DN 28 universally applicable for all measurement and industrial applications, as well as for building automation.
Product line
| Input | Output | Order No. |
|---|---|---|
| 0 ... 20 mA | 0 ... 20 mA | DN 28 P – 12 |
| 4 ... 20 mA | 0 ... 20 mA | DN 28 P – 32 |
| 0 ... 10 V | 0 ... 20 mA | DN 28 P – 52 |
| 0 ... 20 mA | 4 ... 20 mA | DN 28 P – 14 |
| 4 ... 20 mA | 4 ... 20 mA | DN 28 P – 12 |
| 0 ... 10 V | 4 ... 20 mA | DN 28 P – 54 |
| 0 ... 20 mA | 0 ... 10 V | DN 28 P – 16 |
| 4 ... 20 mA | 0 ... 10 V | DN 28 P – 36 |
| 0 ... 10 V | 0 ... 10 V | DN 28 P – 56 |
Downloads / Links
Technical Data
Input
| Input signal | 0 to 20 mA, 4 to 20 mA, 0 to 10 V see product line |
|
| Input resistance | Current input Voltage input |
approx. 5 Ohm approx. 1 MOhm |
| Overload | Current input Voltage input |
≤ 200 mA ≤ 250 V |
Output
| Output signal | 0 to 20 mA, 4 to 20 mA, 0 to 10 V see product line |
|
| Load | Current output Voltage output |
≤ 500 Ohm ≥ 2 kOhm |
| Residual ripple | < 10 mVrms | |
General Data
| Transmission error | < 0.2 % full scale | |
| Temperature coefficient 1) | < 0.02 %/K | |
| Cut-off frequency -3 dB | 200 Hz | |
| Response time T99 | 3.5 ms | |
| Test voltage | 3 kV AC, 50 Hz, 1 min., input against output against power supply |
|
| Working voltage (Basic Insulation) 2) |
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, approx. 2 VA DC: approx. 0.7 W |
| EMC 3) | EN 61326 -1 | |
| Construction | 11.2 mm (0.44") housing, protection classt: IP 20 mounting on 35 mm DIN rail acc. to EN 60715 |
|
| Connection | 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
- 7 Power supply 24 V AC/DC
- 8 Power supply 24 V AC/DC
Subject to change!
