The BLU-D series measures the capacity of any battery string — lead-acid, lithium-ion, nickel-cadmium or other chemistries — and discharges it completely when recycling time comes. Two models, BLU1100D and BLU1350D, cover banks up to 1100 and 1350 V DC with 40 kW of power.
Advantages
Capacity testing according to the standards
The discharge follows IEEE 450, IEEE 1188, IEEE 1106 and IEC 60896, at constant current, power, resistance or voltage, or along load profiles that mimic real service.
Everything in sight on the touch screen
The 7-inch display shows voltage, current, power, capacity and elapsed time in real time, with voltage/time and capacity/time graphs.
Full discharge before recycling
With the external zero-voltage discharge module the battery reaches 0 V at constant current: the essential step before recycling lithium cells safely.
In-service batteries and large banks
An external DC clamp allows testing without disconnecting the battery from its load, and up to 10 same-model units work in parallel sharing the current equally.
Applications
- Capacity tests of substation, industrial, UPS and electric vehicle banks.
- Full discharge to 0 V of end-of-life batteries before recycling.
- Discharge of lithium systems to a preselected voltage before transport.
- Cell voltage supervision during the test, combined with the BVS system.
- Discharge with ambient and cell temperature control.
About the product
Each unit takes discharge currents up to 100 A adjustable with 0.1 A resolution, internally measures up to 200 A and 1350 V DC, and communicates over USB, RS232 or Ethernet. The DV-B Win software presents the parameters numerically and graphically and generates reports in XLS, PDF, Word or RTF.
Accessories: current cables with insulated clamps, 30/300 A current clamp (1000 A on request), ZVD1350 zero-voltage discharge module, cell voltage modules and a wheeled transport case.
Technical specifications
| Models | BLU1100D (0 – 1100 V DC); BLU1350D (0 – 1350 V DC) |
| Discharge current | Up to 100 A; 0.1 A resolution |
| Maximum power | 40 kW over a wide voltage range |
| Discharge modes | Constant I, P, R and U; I, P and R profiles |
| Voltage measurement | ±0.5% of reading ±0.1 V |
| Parallel operation | Up to 10 same-model units |
| Mains supply | 90 – 264 V AC, 50/60 Hz |
| Dimensions and weight | 601 × 287 × 566 mm; 30.0 kg |
Frequently asked questions
What is the difference between the BLU1100D and the BLU1350D?
Only the voltage range: 1100 V DC on the former and 1350 V DC on the latter. Features, accessories and discharge modes are identical.
Can it discharge a battery down to 0 V?
Yes. Below 5 V the unit discharges through minimum resistance and, with the external zero-voltage module, keeps a constant current down to 0 V.
Can a battery be tested without taking it out of service?
Yes. By measuring the total or load current with a DC clamp, the unit keeps the total current or power constant during the test.
What happens if the mains fails during a test?
The resume function picks the test up when power returns, and a remote stop via dry or wet contact allows aborting it from an external system.
How are the results documented?
The PC software downloads the results over USB and creates reports in several formats, with graphs and configurable alarms.
