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Advanced emergency/backup Battery and UPS testing system. Battery discharge tester for all types of backup Battery systems.

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Package 29kg 60L 40W 24H Hard Case 24kg 67L 30W 43H
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The Battery Load Units – BLU series are standalone or PC-controlled battery capacity test set, based on a state-of-the-art technology, using the most advanced power electronics solutions with coolers and fans integrated into device. The BLU series devices are lightweight solution for the test engineers from all around the world, developed to meet customer’s wide ranging test procedures (standardized as well as customized).

Using a BLU device, the capacity test is performed in an accurate, user-friendly way in accordance to actual standards for battery testing (IEEE 450-2010 / 1188-2005 / 1106-2015, IEC 60896-11/22 and other relevant standards). Discharging can be performed at constant current, constant power, constant resistance or in accordance with a pre-selected load profile. The discharge test can be conducted even in case a battery remains connected to the load – by measuring and taking into account the load current during the process.

The BLU series devices provide the discharge current of up to 340 A and are applicable to up to 500 V battery voltages. When a required discharge current or power exceeds the capacity of a single BLU device, several BLU devices can be connected in parallel. Alternatively, External Load Units BXL series can also be used to increase discharging B-BLUNS1-322-EN. 2019-04-10 2 capacity. Combined with Battery Voltage Supervisor BVS and Battery Voltage Recorders BVR, BLU series devices are powerful tool which enables performing detailed evaluation of batteries. Overview of the maximum currents for various battery voltage ranges with the minimum achievable cell voltage of 1,75 V is presented in the table below. Maximum currents available by using BXL series devices are also presented in the table



  • Test resume feature in case of interrupted power supply
  • Detailed test analysis using DV-B Win software
  • Enables testing batteries while in service
  • Adjustable alarm and shutdown parameters for preventing excessive discharge
  • Easily expandable for larger banks using BXL extra load units
  • Discharge current – up to 340 A DC
  • Voltage measurement range: 5,25 – 500 V DC
  • Powerful – discharge power of up to 28,4 kW
  • Lightweight – starting from 12,8 kg



  • Power plants
  • Telecommunication systems
  • Generator excitation systems
  • Substations
  • Protection and control systems


Technical Data

  • Display range: 0 – 2 999,9 A DC
  • Basic accuracy: ± (0,5 % of reading + 0,1 A)
  • Resolution: 0,1 A
  • Typical accuracy: ± 0,01 % of reading ± 1 digit
  • Input impedance: > 1 MΩ


Operation: Central screen or DV power win software

Operating temperature range: 0 °C … +35 °C Nominal temperature range: 18 °C … +28 °C Storage temperature range: -30 °C … +60 °C

Measurements: Dc voltage and current

Weight: 15g without accessories ≤ 5.5 kg incl. accessories and batteries in carrying case Case material: NORYL, shock -and scratch proof thermoplast

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