ERI Series

Features of performance
Details
Model overview
Downloads
  • Input voltage up to 400 V
  • Load current up to 220 A
  • Power up to 10.8 kW
  • Energy recycling to the local power grid
  • Two free calibrations
  • Low heat waste - silent - lab operation
  • CC - CV - CR - CP - CCV - CVC mode
  • Ethernet + USB + RS-232 + CAN as standard
  • GPIB optional
  • SCPI Programming with measurement function
  • Dynamic loads with synchronized DAQ
  • Data storage directly to USB mass storage device
  • Adjustable protections for voltage and current
  • Electronic protection
  • Digital input and programmable output
  • Galvanically isolated fast I/O Port optional
Description
ERI Series Electronic Loads feed the consumed energy back to the local power grid. Another feature of these devices is an extensive variety of standard data interfaces. Apart from Ethernet, USB and RS-232 there is a standard CAN interface. GPIB can be installed as an option (ERI02). Programming is done in SCPI with an extensive command syntax.
Cooling
ERI loads recover the consumed energy instead of converting to thermal energy. Thus, electricity costs are reduced and the environment is only slightly warmed. As a consequence, in many cases air-condition is unnecessary. Energy recycling loads do not need powerful fans. That makes the devices acceptably quiet and therefore perfectly fit for laboratory operation.
Energy Recycling
The consumed energy is fed back to the mains supply with an efficiency of ca. 90 %. The operation in the sense of a power generation into the public electricity grid is not provided with these energy recycling loads. The load must be connected to a low-voltage mains supply with a fixed installed and separately fused supply line. The ERI load has a simple and non-redundant monitoring of the power supply. If limit values are exceeded, it switches off the power stage unit. This monitoring does not replace any grid or system protection which must be installed if necessary for the protection of persons and the local grid.
Functions
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. A data acquisition function allows to store measurement data on an external USB flash drive. Dynamic operation can be configured by up to 300 list point settings. The Electronic Load saves the synchronously acquired measurement values with timestamp. A configurable trigger model controls data acquisition as well as static and dynamic settings.
Loading Capacity
The type spectrum contains 3 power classes from 3,600 W to 10,800 W and input voltages of 120 V and 400 V.
Protections
  • Current protection
  • Power protection
  • Overtemperature protection
  • Simple mains supply monitoring
Data Interfaces
  • Ethernet
  • USB
  • RS-232
  • CAN
  • GPIB (Option ERI02)
LabVIEW driver is certified by National Instruments.
Galvanically Isolated Fast I/O Port (Option ERI06)
Optional galvanically isolated I/O port to prevent ground loops, for following functions:
  • Load setting C and V
  • Analog setting of C and V protections
  • Load on-off
  • Voltage monitor output
  • Current monitor output
  • Trigger input
  • Trigger output
  • Digital input
  • Programmable digital output
Calibration
A free Factory Calibration Certificate (FCC) is supplied with the devices. 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
For use under laboratory conditions, H&H recommends a calibration interval of 2 years. This is an empirical value that can be used as a guide for the first period of use. Depending on the intended use, service life, relevance of the application and ambient conditions, the operator should adjust this interval accordingly.
Documentation
Each Electronic Load is supplied with a user manual as PDF file and printed General Safety Instructions, each in German and English.
The table can be sorted via the column headers.
Name
Max V
Max W
Max A
120 V
3600 W
110 A
120 V
7200 W
220 A
120 V
10800 W
330 A
400 V
3600 W
45 A
400 V
7200 W
90 A
400 V
10800 W
135 A

Software/Drivers

ERI_Tool_1.0.0.zip
Software tool to control ERI series loads up from firmware revision 1.0.x
ERI_1.0.0.zip
LabVIEW®2015 driver for ERI series with firmware revision up from DI1.0, AI1.0, UI1.0

Applications

Application 06
Loading an AC voltage with a DC load
Application 02
Loading of low input voltages with an external auxiliary power supply