Gossen Konstanter 7KD2403-4G61 DC Power Supply 2(80V .25A) + 8V 2A

The Gossen Konstanter 7KD2403-4G61 is a dual-output DC power supply designed for laboratory and industrial test environments requiring precise voltage and current regulation. It delivers two independent channels: 80V at 0.25A (20W) and 8V at 2A (16W), with minimal residual ripple and response times under 4 ms. The instrument combines local control with networked operation via addressable RS 232C serial interface (50 to 19,200 bits/sec, up to 30 devices per port) and optional IEEE 488 interface for full remote function control.

Built-in overvoltage, overcurrent, and over-temperature protection with adjustable delayed shutdown (0.00 to 99.99 sec) safeguard connected loads. Dual 4-place multifunction displays show voltage, current, and power measurements in real time. Menu-driven configuration handles range limiting, protection thresholds, and digital I/O parameters.

The unit stores up to 243 settings for individual or sequential recall. Analog interfaces provide monitor outputs, auxiliary power, programmable signal paths, and trigger/setpoint inputs capable of superimposing AC signals in the kHz range. Output switching via key press, RS 232C command, or trigger input enables flexible test automation.

Technical Specifications

• Output 1: 80V, 0.25A (20W)


• Output 2: 8V, 2A (16W)


• Regulation: Voltage and current controlled


• Response Time: < 4 ms (80V channel)


• Serial Interface: RS 232C addressable, 50–19,200 bits/sec, device address 0–30 or UNL


• Network Capacity: Up to 30 instruments per PC port


• Command Rate: ~15 settings/sec, ~7 measurements/sec


• IEEE 488: Optional full-function interface


• Analog Interface: Monitor, auxiliary power, programmable outputs; trigger and setpoint inputs


• AC Superposition: Capable into kHz range


• Protection: Overvoltage, overcurrent, over-temperature; adjustable overcurrent shutdown 0.00–99.99 sec


• Display: Two 4-place multifunction (V, A, W)


• Storage: 243 programmable settings


• Control: Lockable elements; output ON/OFF via key, command, or trigger

Key Features

• Dual independent outputs for mixed-voltage test scenarios


• Minimal ripple for sensitive circuit characterization


• Addressable serial control allows multi-instrument coordination from single PC port


• Adjustable overcurrent timeout prevents nuisance shutdowns during transient loads


• Programmable trigger inputs for synchronized test sequencing

Typical Applications

• Multi-supply circuit validation and subsystem testing


• Automated test equipment (ATE) integration via RS 232C or IEEE 488


• Research and development of mixed-voltage electronic systems


• Component qualification under dual-supply conditions

Compatibility & Integration RS 232C addressable interface with adjustable baud rate (50–19,200 bits/sec) and selectable device address (0–30) enables daisy-chain operation of up to 30 units. IEEE 488 option supports instrument control systems. Analog outputs and programmable trigger/setpoint inputs integrate into custom automation and data acquisition setups.