PLA Series

  • Features
  • Details
  • Type Overview


• I/O Port as standard

  • tl_files/upload/produkte/Serie PLA/2HE Gerät_Frontansicht_LO_kl.gif

• Optional Ethernet + USB + RS-232 
• Optional CAN Interface
• Optional  GPIB Interface (only at PLA4XX)
• CC - CV - CR - CP Mode
• Optional MPPT (in preparation)
• SCPI programming with DAQ function
• Dynamic loads
• Protections for current and voltage
• Depending on model, temporary overload capacity
• Electronic protection
• Silent fan cooling
• 19 inch installation possible


The electronic loads of the series PLA combine classic design, large display with modern interfaces and great functionality. The highlight of the PLI series  is the extensive variety of optional interfaces. In addition to Ethernet, USB, RS-232 can be installed and also a CAN interface. In addition, for devices with 400 W GPIB is optionally available. I/O port ist standard. Programming is done in SCPI syntax.

The units provide constant current, constant voltage, constant resistance and constant power mode. In addition, protections for current and voltage can be set in any mode. Dynamic operation can be configured by up to 100 list point settings. A data acquisition function allows to save 100 measurement points (time, voltage, current) on an internal memory chip.

When being controlled by one of the data interfaces, there are further functions: to protect the load input and thereby the unit under test a watchdog can be activated which deactivates the load input in case of communication troubles. Another feature is the characteristic function which is unsed to map a sequence of voltage values linearly interpolated to a sequence of current values.

Optionally MPPT function for  solar panel test can be activated (Option PLA20 in preparation).

Loading capacity
The type spectrum contains 12 models in two power categories 200 W and 400 W. In addition, the models up to 300 V have an overload capability. The level and duration of the possible overload depends on the temperature of the power stage. Therefore the units can be used even for considerably more powerful applications for a short time.


  • Current limitation
  • Power limitation
  • Overtemperature protection
  • Overvoltage indicator
  • Undervoltage indicator
  • Protection of the GND lines at the I/O Port

The delivery includes comfortable tools for PC control.

The standard I/O Port provides the following functions:

  • Load setting C and V
  • Load on/off
  • Voltage monitor output
  • Current monitor output

Factory Calibration Certificate
A Factory Calibration Certificate (FCC) can be supplied with the devices. The FCC meets the requirements according to DIN EN ISO 9000ff. This calibration certificate documents the traceability to national standards to illustrate the physical device in accordance with the International  System of Units (SI). The recommended calibration interval is 2 years.

We supply a User Manual as pdf file and printed General Safety Instructions, each in German and English.


Type Overview