PMLI Series

End of Life Notification: We will discontinue production of PMLI series on December 31,2018. The successor series is PMLA. A comparison document with functions and command set of both series can be found here.

  • Features
  • Details
  • Model Overview


Serie PMLI

• Configurable multi-channel load
• Up to 12 channels in 19" - 2HU
• Tailored configurations possible with modules in
    3 voltage and 4 power classes  

• 150 W - 300 W - 450 W - 600 W modules
• Voltages 60 V - 120 V - 240 V
• Currents from 4.5 A to 80 A
• Current, voltage, resistance, power mode
• Dynamic loads
• 1,800 W total power
• SCPI programming with measurement function
• Electronic protection
Analog measurement outputs for voltage and current
Analog control input
RS-232 and GPIB interface with software tools




The PMLI electronic multi-channel load has up to 12 slots for load modules. 150 W, 300 W, 450 W or 600 W load modules are available. Depending on power, a module occupies one (150 W), two (300 W), three (450 W) or four slots (600 W).

Load Modules

The modules are available in three different voltages 60 V, 120 V and 240 V and for currents of 4.5 A to 80 A.
Various loads can be configured, e.g.:
1 x 600 W + 1 x 450 W + 2 x 300 W + 1 x 150 W
The total power is max. 1,800 W.
The loads can therefore be easily configured to test units with multiple outputs.
The load inputs are galvanically separated.
Very simple systems can therefore be specially configured to requirements with multi-channel burn-in equipment.

Operating Modes and Functions

The following operating modes are possible:

  • Current mode
  • Voltage mode
  • Resistance mode
  • Power mode
  • Dynamic mode with 2 presets

An adjustable trigger voltage enables current only to flow when the defined voltage is exceeded.

Load Modules

Load modules are available in three voltage categories and four power classes.

Load Connections

The load inputs are connected to jack-in terminal strips. All load inputs are galvanically separated.

Analog Measurement Outputs, Analog Control Input

For each load module, analog measurement outputs 0 ... 10 V for voltage and load current are available.
Via an analog control input the load current can be additionally set by 0 ... 10 V.


The air supply from the front panel to the rear panel enables the assembly of compact rack systems with no gaps. The temperature-controlled fan control provides a pleasant operating noise.

Devices and Interfaces

are available in the following versions:

PMLI-M Master device with GPIB + RS-232 interface and PMLI system bus for connection of up to 8 slave devices.
PMLI-S Slave device with PMLI system bus for operation on a master device and with an output for a further slave device.
SLOT4 Empty cooler module (without load modules) with 4 free slots. (1x, 2x or 3x required per device depending on channels).
PMLI05 Optional external LAN-RS-232 adapter


Programming takes place in SCPI syntax. All channels can be addressed individually or in groups. Current LabVIEW® drivers and tools can be downloaded from our website.


A free Factory Calibration Certificate (FCC) is 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). Within the warranty period we calibrate a second time for free.

--> Conditions for a second free calibration

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

    40 V60 V120 V240 V
    150 W30 A
    20 A
    10 A
    4.5 A
    300 W40 A
    20 A
    9 A
    450 W60 A
    30 A
    13.5 A
    600 W80 A
    40 A
    18 A