Mulit-channel Loads

Ideal for simultaneous testing of many test objects, e.g. different control units of a vehicle. Up to 72 channels can be tested in one system in master-slave connection.

PMLI Series

Features of performance

  • 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

Details

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

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.

PMLA Series

Features of performance

  •  Configurable multi-channel load
  • Up to 12 channels in 19“ , 2 HU
  • Tailored configurations possible with modules in 4 voltage and 4 power classes
  • 150 W - 300 W - 450 W - 600 W modules
  • Voltages 40 V - 60 V - 120 V - 240 V
  • Currents from 1 A to 120 A
  • CC - CV - CR - CP mode
  • Dynamic loads
  • 1,800 W total power
  • Operated via User Interface
  • SCPI programming with measurement function
  • Internal measurement data storage
  • Electronic protection
  • Analog measurement outputs (optional)
  • Analog control input (optional)
  • Extensive data interfaces
  • 19 inch mountable
  • Channel expansion via Slave devices
  • Watchdog function
  • LabVIEW drivers and software tools available for download

Details

Configuration
The PMLA electronic multi-channel load has up to 3 cooling units, each with 4 mounting positions 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 four different voltages 40 V, 60 V, 120 V and 240 V and currents from 1 A up to 120 A. Various loads can be configured, e.g.: 1 x 600 W + 1 x 450 W + 2 x 300 W + 5 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 for 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 up to 100 setting values
An adjustable current or voltage protection as well as voltage and current measurement functions are available.
Measurement Data Storage
A data acquisition function records up to 100 measurement points (time, voltage, current) at each channel and saves it internally.
User Interface
The master device has a graphical user interface. All channels, also those of connected slave devices, can be operated.
I/O Port
Optional I/O Port for the following functions.
  • Load setting C and V
  • Load on/off
  • Voltage monitor output
  • Current monitor output
  • Sense inputs
Factory Calibration Certificate
(FCC-PMLAxx) 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.
Software Tools und Drivers
LabVIEW drivers and software tools are available for download free of charge.
Applications
  • Calibration of driver outputs
  • Consumer test of electrical systems
Test of:
  • Batteries and accumulators
  • Cables
  • Absorbers
  • DC/DC converters
  • Electronic assemblies
  • Electronic fuses and cut-off
  • Fuse boxes
  • ECUs
  • Power distributors
Trigger System
By a trigger system all channels can synchronously be switched on or a programmed waveform can be started.
Watchdog Function
An adjustable watchdog function may protect the DUT by switching the input off in case of disrupted data communication.
Cooler and Load Modules
At each device three cooling units can be installed. At each cooling unit one, two or four modules can be installed, depending on type.
Terminals
The load terminals are provided at pluggable terminal strips.
Cooling
The air transport from the front panel to the rear panel enables the assembly of compact rack systems without gaps. The temperature-controlled fan control provides a pleasant operating noise.
Documentation
Each Electronic Load is supplied with a user manual as PDF file and printed General Safety Instructions, each in German and English.

Model overview

The table can be sorted via the column headers.
Name
Max V
Max W
Max A
120 V
150 W
10 A
120 V
150 W
2 A
120 V
300 W
20 A
120 V
300 W
4 A
120 V
450 W
30 A
120 V
450 W
6 A
120 V
600 W
40 A
120 V
600 W
8 A
240 V
150 W
5 A
240 V
150 W
1 A
240 V
300 W
10 A
240 V
300 W
2 A
240 V
450 W
15 A
240 V
450 W
3 A
240 V
600 W
20 A
240 V
600 W
4 A
40 V
150 W
30 A
40 V
300 W
60 A
40 V
450 W
90 A
40 V
600 W
120 A
60 V
150 W
20 A
60 V
150 W
5 A
60 V
300 W
40 A
60 V
300 W
10 A
60 V
450 W
60 A
60 V
450 W
15 A
60 V
600 W
80 A
60 V
600 W
20 A

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