DRST-DC DIN Rail Universal Uni/Bipolar DC Signal Conditioner
Universal Uni-/Bipolar DC Signal Transmitter
Supported Applications
The Omega DRST-DC series is a Universal Uni-/Bipolar Signal Transmitter designed for DIN rail mounting. It functions as a signal conditioner within data acquisition and control systems, processing universal input signals to standardized output formats.
Operating Conditions & Performance
The device operates with a supply voltage of 24 VDC ± 10% and consumes ≤ 1.5 W of power. It provides electrical isolation rated at 1500 VAC and features an input impedance ≥ 10 MΩ. The common mode rejection is specified as ≥ 100 dB.
Performance parameters include a maximum load resistance of 600 Ω for current outputs. The ambient operating temperature range is -20°C to +60°C, with an enclosure rating of IP20. Input error indication and input limits are configurable via the device settings.
Electrical Specifications
• Supply Voltage: 24 VDC ± 10%
• Max Load Resistance: 600 Ω
• Input Impedance: ≥ 10 MΩ
• Output Current Ranges: 0-20 mA, 4-20 mA
• Output Voltage Ranges: 0-5 V, 0-10 V
• Common Mode Rejection: ≥ 100 dB
• Isolation: 1500 VAC
• Power Consumption: ≤ 1.5 W
Configuration Options
The DRST-DC series supports a range of input and output signal configurations to accommodate universal uni-polar or bi-polar signals.
Signal Configurations
• Voltage Outputs: 0-5 V, 0-10 V
• Current Outputs: 0-20 mA, 4-20 mA
Housing and Mounting
The series is designed for DIN rail mounting according to the standard DIN EN 60715. An optional display/programming front panel (DRSL-DISPLAY) is available as an accessory.
Key Product Differences
The primary variation within this family involves the selection of input and output signal types, allowing configuration for specific process requirements such as 0-10 V or 4-20 mA loops. The device includes configurable parameters for input error indication and limits.
Terminal Connections
• Supply: Terminals 21, 22
• Input: Terminals 41, 42, 43, 44
• Output: Terminals 11, 12, 13, 14
| Approvals | UL, RoHS |
| Approvals Note | UL: UL 508/CC22.2 no. 14, LVD: 2014/35/EU, EMC: 2014/30/EU, RoHS: 2011/65/EU |
| Bandwidth | > 40 Hz |
| Calibration Temperature, Max | 28 °C |
| Calibration Temperature, Min | 20 °C |
| Display Type | Programmer |
| Electrical Output | 0 to 23 mA |
| EMC Immunity Note | NAMUR NE21, A Criterion, Burst: < ±1% of span Conducted Emission, class A: 150 kHz to 10 MHz |
| Enclosure Ratings | IP20 |
| Height | 109 mm |
| Isolation | 2.3 kVac |
| Length | 104 mm |
| Load Resistance | Current Output: 1000 Ω/± 20 V @ ±20 mA, Voltage Output: 2 kΩ, Buffered Voltage Output: > 500 kΩ min |
| Mounting | DIN Rail 35 mm Standard, EN 60715 |
| Noise Calibration | >60 dB |
| Operating Temperature, Max | 60 °C |
| Operating Temperature, Min | -20 °C |
| Power Consumption | 2.5 W |
| Power Dissipation | 2.0 W |
| Relative Humidity | <95% RH |
| Screw Terminal Torque | 0.5 Nm |
| Series ID | DRST-DC-Univ-BP-Sig-Cond |
| Signal Dynamics Input | 24 bit |
| Signal Dynamics Output | 18 bit |
| Stability | Load Stability: ≤0.01% of span/100 Ω |
| Storage Temperature, Max | 85 °C |
| Storage Temperature, Min | -20 °C |
| Supply Power Type | AC/DC |
| Voltage Loss | Input Voltage Drop: 0.6 V @ 20 mA nom. |
| Weight | 250 g |
| Width | 23.5 mm |
| Wire Gauge | 26 to 14 AWG |