Sorensen DCR-B Series
6 models with full specifications from orensen (Ametek).
The Sorensen DCR-B (or DCRA/B) product family by Ametek consists of heavy-duty, phase-controlled Silicon Controlled Rectifier (SCR) DC power supplies. Designed for benchtop or 19-inch rackmount applications, these robust instruments provide regulated DC power across multiple voltage ranges. Operating in both Constant Voltage (CV) and Constant Current (CC) modes with automatic crossover, the family includes the DCR40, DCR60, DCR80, DCR150, DCR300, and DCR600. This guide outlines their respective voltage, current, and regulation specifications to assist engineers in choosing the appropriate model for industrial, laboratory, or automated test environment configurations.
- Voltage Range
- 0 to 600 VDC
- Operating Modes
- Constant Voltage (CV) and Constant Current (CC)
- Operating Temperature
- 0 to +70 °C
- Control Method
- Phase-controlled SCR / Triac
Models in this series
| Model | Type | Display | Interfaces | Operating Modes |
|---|---|---|---|---|
| DCR40 | Sorensen | Dual analog meters (voltage and current) | Analog programming (standard); GPIB / IEEE-488 (optional via external programmer) | Constant Voltage (CV) and Constant Current (CC) with automatic crossover |
| DCR80 | Sorensen | Dual analog meters for voltage and current (standard); 3.5-digit LED digital meters (Option M5) | Analog remote programming (voltage and resistance); Remote shutdown; Remote sensing | Constant Voltage (CV) and Constant Current (CC) with automatic crossover |
| DCR150 | Sorensen | Dual analog meters (voltmeter and ammeter) | Analog remote programming (voltage, current, and shutdown) | Constant Voltage (CV) and Constant Current (CC) with automatic crossover |
| DCR300 | Sorensen | Dual analog meters (voltage and current) | Analog programming (resistance, voltage), remote sensing, series/parallel master-slave | Constant Voltage (CV) and Constant Current (CC) with automatic crossover |
| DCR60 | Sorensen | Dual front-panel analog meters (voltage and current); optional digital meters | Analog remote programming (voltage, resistance), remote sensing | Constant Voltage (CV) and Constant Current (CC) with automatic crossover |
| DCR600 | Sorensen | Dual analog meters for voltage and current (standard); digital meters available as a factory option | Analog programming terminal strip (standard); GPIB/RS-232 available via optional external programmer | Constant Voltage (CV) and Constant Current (CC) with automatic crossover |
Voltage and Current Classifications
The DCR-B family is categorized by maximum rated output voltage, scaling from low-voltage, high-current systems up to high-voltage setups. The DCR40 series covers 0 to 40 VDC, with maximum power levels scaling from 520 W up to 5000 W on the DCR40-125B model. Mid-range units include the DCR60 (up to 60 VDC) and the DCR80 (up to 80 VDC), the latter delivering up to 1440 W with the DCR 80-18B. For higher voltage applications, the DCR150 offers up to 150 VDC, while the DCR300 delivers up to 300 Vdc (up to 2700 W). The DCR600 represents the highest voltage range in this family, providing up to 600 VDC with current configurations up to 4.5 A.
Regulation and Performance Stability
Across the entire series, voltage line and load regulation are specified at 0.05% of the maximum rated voltage, ensuring output stability despite source or load fluctuations. Current regulation differs slightly between models. The DCR60, DCR80, and DCR300 series feature current line and load regulation of 0.15% of the maximum rated current. In contrast, the DCR40 and DCR150 series feature current regulation of 0.25%. Transient recovery time is typically 50 ms to return within a specified margin of steady-state voltage following a 50% step load change, as seen on the DCR40, DCR150, and DCR60 models.
Interfaces, Displays, and Configuration
Standard models in the family are equipped with dual front-panel analog meters for simultaneous voltage and current monitoring. Digital displays are available as options on certain series, including the DCR60, DCR80, and DCR600. For control and system integration, analog remote programming of voltage and resistance is standard, along with remote sensing to compensate for lead drops. The DCR40 and DCR600 also support GPIB or RS-232 remote control via optional external programmers. For systems requiring combined outputs, models like the DCR150 and DCR300 support series and parallel configurations.
Frequently asked questions
- What is the typical transient recovery time for DCR-B models?
- The typical transient recovery time is 50 ms to return to a steady-state level following a 50% load step change.
- Do any of the models offer digital displays?
- Yes. While dual analog meters are standard, digital displays are available as factory options for series such as the DCR60, DCR80, and DCR600.