Isolated channel architecture
Up to 24 individually isolated channels can be connected in series to represent multi-cell devices under test.
N83624
For precise BMS/CMS testing, cell-voltage simulation and high-channel-count test systems in development and production.
The N83624 series is a programmable, high-accuracy battery cell simulator for BMS and CMS testing as well as the calibration of multi-channel voltage-acquisition systems. It is designed for development, quality assurance and automated production testing where numerous cell voltages must be generated and measured accurately, reproducibly and independently.
SOC and sequence profiles
Eight SOC files and ten SEQ files support test routines containing up to 200 programmable steps each.
Fast programming response
All-channel programming response is no more than 10 ms, while the 6 V models provide rise times below 20 µs.
Remote control and software
LAN, RS232, CAN and the PC software support configuration, graph display, data analysis, reports and data logging.
Personal project consultation
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Select the appropriate technical configuration or access product documentation directly.
ART. NO.
Description
Current [A]
Power [P]
Voltage [V]
N83624-06-01
|
Description
N83624-06-01 High-accuracy 24-channel battery simulator, 6 V/channel, 1 A/channel, 6 W/channel, 3U
|
Current [A]
1
|
Power [P]
6
|
Voltage [V]
6
|
16 Channel Simulator
Technical Data
Design
Standard 19"
Height
3
Interfaces / Protocols
max. current per channel
max. power per channel
max. voltage per channel
Number of channels
24
Product category
Battery Cell Simulators
Type of Batterycellsimulator
Fault Simulation
> 10 Channels
Uni-/Bidirectional
Unidirectional
N83624-06-03
|
Description
N83624-06-03 High-accuracy 24-channel battery simulator, 6 V/channel, 3 A/channel, 18 W/channel, 3U
|
Current [A]
3
|
Power [P]
18
|
Voltage [V]
6
|
16 Channel Simulator
Technical Data
Design
Standard 19"
Height
3
Interfaces / Protocols
max. current per channel
max. power per channel
max. voltage per channel
Number of channels
24
Product category
Battery Cell Simulators
Type of Batterycellsimulator
Fault Simulation
> 10 Channels
Uni-/Bidirectional
Unidirectional
N83624-06-05
|
Description
N83624-06-05 High-accuracy 24-channel battery simulator, 6 V/channel, 5 A/channel, 30 W/channel, 3U
|
Current [A]
5
|
Power [P]
30
|
Voltage [V]
6
|
16 Channel Simulator
Technical Data
Design
Standard 19"
Height
3
Interfaces / Protocols
max. current per channel
max. power per channel
max. voltage per channel
Number of channels
24
Product category
Battery Cell Simulators
Type of Batterycellsimulator
Fault Simulation
> 10 Channels
Uni-/Bidirectional
Unidirectional
N83624-15-01
|
Description
N83624-15-01 High-accuracy 24-channel battery simulator, 15 V/channel, 1 A/channel, 15 W/channel, 3U
|
Current [A]
1
|
Power [P]
15
|
Voltage [V]
15
|
16 Channel Simulator
Technical Data
Design
Standard 19"
Height
3
Interfaces / Protocols
max. current per channel
max. power per channel
max. voltage per channel
Number of channels
24
Product category
Battery Cell Simulators
Type of Batterycellsimulator
Fault Simulation
> 10 Channels
Uni-/Bidirectional
Unidirectional
N83624 series overview
The N83624 series is a programmable multi-channel battery cell simulator for the precise reproduction of individual cell voltages in BMS, CMS and ATE test systems. Four model variants cover output voltages from 0 to 6 V or 0 to 15 V and currents of up to 1 A, 3 A or 5 A per channel. Depending on the model, the power rating is 6 W, 15 W, 18 W or 30 W per channel.
A 19-inch, 3 U enclosure provides 24 isolated channels. Each channel can be programmed and measured independently and connected in series for multi-cell devices under test. In addition to constant-voltage operation with current limiting, the series supports charging and discharging simulations, SOC models, programmable sequences and a cross-channel measurement display. Typical applications include BMS and CMS testing for vehicles, energy storage systems and UAVs, testing of BMS components and calibration of multi-channel voltage acquisition systems.
Key benefits
High channel density in 3 U
24 independently controllable channels reduce space requirements in BMS test benches and high-channel-count production systems.
Isolated outputs
Isolation is rated at 500 V DC between channels and 2,500 V DC between output and protective earth.
Resolution for low currents
The separate low-current range provides 0.1 µA setting and readback resolution for sensitive measurement tasks.
Precise cell voltage
The 6 V models achieve voltage setting and readback accuracy of 0.6 mV at 23 ± 5 °C.
Short rise times
Rise times below 20 µs on the 6 V models support devices under test with rapid cell-voltage changes.
Optional fault simulation
The optional module simulates short circuits, open positive or negative leads and reverse polarity for all 24 channels.
Battery cell simulation principle
Each isolated channel provides a programmable cell voltage and measures voltage, current and power. In Source mode, the channel operates as a constant-voltage source with adjustable output-current limiting. A high-current range, a low-current range and automatic range selection are available for current measurement.
Charge mode reproduces charging and discharging processes with defined voltage, current limit and simulated internal resistance. The SOC function links capacity, open-circuit voltage and internal resistance through programmable data points. This allows the simulator to change the electrical behaviour of a cell as a function of state of charge. SEQ mode is additionally available for time-based test profiles.
Data acquisition: The All CH view displays voltage, current, power and switching status for the channels. The local Graph view can show the voltage curves of up to four selected channels simultaneously.
Models and technical specifications
Model selection is based on the required cell voltage and maximum current per channel. All listed variants provide 24 channels; voltage, current and power values apply to one individual channel.
| Model | Channels | Voltage per channel | Current per channel | Power per channel | Voltage accuracy |
|---|---|---|---|---|---|
| N83624-06-01 | 24 | 0–6 V | 0–1 A | 6 W | 0.6 mV |
| N83624-06-03 | 24 | 0–6 V | 0–3 A | 18 W | 0.6 mV |
| N83624-06-05 | 24 | 0–6 V | 0–5 A | 30 W | 0.6 mV |
| N83624-15-01 | 24 | 0–15 V | 0–1 A | 15 W | 1.5 mV |
| Measurement or output parameter | 6 V models | 15 V model |
|---|---|---|
| Voltage setting resolution | 0.1 mV | 0.1 mV |
| Voltage setting accuracy at 23 ± 5 °C | 0.6 mV | 1.5 mV |
| Voltage readback resolution | 0.1 mV | 0.1 mV |
| Voltage readback accuracy at 23 ± 5 °C | 0.6 mV | 1.5 mV |
| Voltage ripple and noise, 20 Hz to 20 MHz | ≤2 mV RMS | ≤5 mV RMS |
| Load regulation | 0.2 mV | 0.4 mV |
| Current resolution in main range | 0.1 mA | 0.1 mA |
| Current resolution in low-current range | 0.1 µA | 0.1 µA |
| Current accuracy in low-current range at 23 ± 5 °C | 1 µA | 1 µA |
| Long-term voltage stability | 80 ppm/1,000 h | 80 ppm/1,000 h |
| Remote-sense compensation | ≤1 V | ≤1 V |
Dynamics and control behaviour
The dynamic specifications distinguish between rise time, fall time and transient recovery time. Rise and fall times describe the transition from 10% to 90% or from 90% to 10% of the final value. Transient recovery time is specified for a load step from 10% to 90% and a return to less than 50 mV deviation from the previous voltage value.
| Dynamic parameter | 6 V models | 15 V model |
|---|---|---|
| Voltage rise time, no load | <20 µs | <40 µs |
| Voltage rise time, full resistive load | <20 µs | <40 µs |
| Voltage fall time, no load | <3 ms | <6 ms |
| Voltage fall time, full resistive load | <100 µs | <200 µs |
| Transient voltage drop | 200 mV | 400 mV |
| Transient recovery time | <100 µs | <200 µs |
| Programming response for all channels | ≤10 ms | ≤10 ms |
Short rise and recovery times reduce the delay between the programmed setpoint and the actual cell voltage. This is particularly relevant for automated BMS tests with rapid load changes or tightly timed test steps.
Operating modes and programmable functions
| Function | Technical implementation | Typical benefit |
|---|---|---|
| Source | Constant-voltage operation with adjustable output-current limiting and selectable current measurement range. | Provides a stable cell voltage for BMS, CMS or calibration tests. |
| Charge | Simulation of charging and discharging processes with voltage, current limit and programmable internal resistance. | Examines DUT behaviour with changing current direction and cell impedance. |
| SOC Edit and SOC Test | Up to eight files with as many as 200 data points each for capacity, voltage, current limit and internal resistance. | Reproduces cell behaviour as a function of state of charge. |
| Predefined SOC models | Discharge models for lead-acid, lithium iron phosphate and ternary lithium cells, plus customer-specific profiles. | Provides a quick starting point for typical cell characteristics and adaptation to individual devices under test. |
| SEQ Edit and SEQ Test | Ten sequence files with up to 200 steps each, including dwell times, cycles and step links. | Automates voltage, current and resistance profiles without requiring manual setpoint adjustments. |
| All CH | Combined display of voltage, current, power and switching status for the individual channels. | Enables rapid verification of a complete multi-channel test setup. |
| Graph | Local graphical display of voltage values for up to four selected channels. | Supports direct assessment of time-dependent voltage curves on the instrument. |
| Fault Simulation – Option | Simulation of short circuit, open positive or negative lead and reverse polarity using the NB108-2. | Provides targeted testing of BMS fault detection and diagnostic functions. |
Typical applications
The isolated multi-channel architecture and programmable cell models support testing from individual BMS components through to complete multi-cell monitoring systems.
BMS and CMS testing for automotive and e-mobility
The simulator provides the cell voltages of a traction or auxiliary battery system and tests voltage acquisition, balancing and fault detection.
Battery systems for UAVs, drones and eVTOL aircraft
Multiple isolated channels reproduce the individual cells of an aviation battery system and support repeatable BMS functional testing.
Production and end-of-line testing
Fast multi-channel programming, sequence execution and PC control enable repeatable functional testing in automated production lines.
BMS testing for energy storage systems
The N83624 simulates the cell voltages of stationary storage modules and supports tests of measurement channels, state evaluation and protective responses.
BMS IC and assembly development
Precise voltages, low-current measurement ranges and programmable SOC profiles support the characterisation of BMS ICs and cell-monitor assemblies.
Calibration of multi-channel voltage acquisition
The independent channels provide defined reference voltages for cell-voltage monitors, fuel-cell measurement systems and comparable acquisition devices.
Interfaces, software and automation
The N83624 series can be operated locally via the colour display or controlled remotely in automated test systems. LAN, RS232 and CAN are part of the standard interface configuration.
| Interface or function | Status | Technical characteristics |
|---|---|---|
| LAN | Standard | Two LAN ports for remote control and cascaded multi-unit setups; selectable TCP or UDP network connection. |
| RS232 | Standard | Configurable baud rates of 9,600, 19,200, 38,400, 57,600 and 115,200 baud. |
| CAN | Standard | Configurable device and channel IDs, support for standard and extended frames, and cyclic transmission of voltage, current and power. |
| Remote sense | Standard | Separate sense connections per channel with compensation of up to 1 V. |
| PC software | Available | Instrument configuration, channel control, function modes, measurement display, curve display, data analysis, reports and data logging in NDAT format. |
| Multi-unit control | Standard via LAN | Multiple units can be controlled from one computer via a network and switch; each unit requires a unique IP address. |
| NB108-2 | Option | 24-channel fault simulation for short circuits, open leads and reverse polarity. |
| Leakage-current measurement module | Option | Optional module for leakage-current measurements in the nA range. |
Series connection and multi-unit setups
The 24 channels are isolated from one another and can be connected in series to reproduce a multi-cell battery system. Multiple N83624 instruments can also be integrated into such a setup. For multi-unit or multi-channel series connections, the manufacturer specifies a maximum total voltage of 1,500 V DC.
Multiple units can be controlled from one computer via LAN and a network switch. Each unit must be assigned a unique IP address. A master-slave or parallel-operation function is not part of the specified functionality.
Note for BMS test benches with an additional high-voltage source: The high-voltage source must not be connected directly in parallel with the series-connected simulator channels. Switching must be performed using two suitable high-voltage relays with a minimum break time of 20 ms to ensure that the cell-voltage source and the pack-voltage source are not connected simultaneously.
Installation and infrastructure
| Requirement | Technical specification |
|---|---|
| Mains connection | Single-phase, 100–240 V AC, 47–63 Hz |
| Mains current | ≤8 A at 220 V AC or ≤14 A at 110 V AC |
| Protective earth | Operation only from a mains connection with protective conductor; protective earthing must be established before switch-on. |
| Form factor | 19 inch, 3 U, suitable for rack installation |
| Dimensions without NB108-2 | 132.5 × 482.0 × 559.0 mm, height × width × depth |
| Dimensions with NB108-2 | 132.5 × 482.0 × 725.9 mm, height × width × depth |
| Net weight | Approx. 17 kg or approx. 20 kg with NB108-2 |
| Operating temperature | 0 to 40 °C |
| Storage temperature | −20 to 60 °C |
| Humidity | 5 to 90% relative humidity, non-condensing |
| Installation altitude | Below 2,000 m |
| Cooling | Air-cooled; air inlets and outlets must not be obstructed during operation. |
| PC software | Microsoft Windows 7 or later, Ethernet connection, at least a 2.0 GHz dual-core CPU and 4 GB RAM recommended |
Protection and safety functions
Overvoltage protection
When the adjustable OVP threshold is triggered, the output is switched off immediately and the protection status is displayed on the instrument.
Overcurrent protection
The adjustable OCP function monitors output and input current and switches off the affected output when triggered.
Overpower protection
The programmable power limit prevents operation above the set OPP value and initiates shutdown.
Protective earth and isolation
The protective-earth connection, isolated channels and output-to-earth isolation support a safe test setup.
In a series connection of multiple N83624 instruments, all channels must be switched off before disconnecting the mains supply of any unit. Fault simulations using the optional NB108-2 may only be configured in Source mode. The fault condition must be set while the channel is switched off; the channel can then be enabled.
N83624 series FAQ
Which N83624 model is suitable for my application?
The required voltage and maximum current per channel are the key selection criteria. The range includes 6 V models with 1 A, 3 A or 5 A and a 15 V model with 1 A per channel.
Can the N83624 series simulate complete battery packs?
The series is designed to simulate individual cell voltages in multi-channel BMS and CMS tests. The isolated channels can be connected in series for this purpose.
Does the N83624 support charging and discharging simulations?
Yes. Charge mode simulates charging and discharging with programmable voltage, current limit and internal resistance. Regenerative energy feedback is not part of the specified functionality.
How many SOC and sequence steps are available?
Up to eight SOC files and ten SEQ files are available. Each file can contain up to 200 programmable steps.
Can multiple channels or instruments be connected in series?
Yes. The channels are isolated and suitable for series connection. In multi-unit and multi-channel setups, the total voltage must not exceed 1,500 V DC.
Which interfaces are available for automation?
The instruments provide LAN, RS232 and CAN. Multiple units with unique IP addresses can also be controlled from one computer via LAN.
Which faults can the optional NB108-2 simulate?
The module simulates short circuit, open positive lead, open negative lead and reverse polarity for the individual channels.
Can the instrument be operated without an external computer?
Yes. The colour display, function keys and rotary encoder allow the main operating modes to be configured and executed locally on the instrument.
Technical consultation and project enquiry
Selecting the appropriate N83624 model requires consideration of cell voltage, maximum current, required channel count, test sequence and fault-simulation requirements. ET System supports the technical configuration and integration into BMS, CMS, ATE and end-of-line test systems.
- Selection of the appropriate voltage and current variant
- Planning channel count, series connection and wiring
- Integration of LAN, RS232 or CAN control
- Configuration with optional NB108-2 fault simulation
