Large currents and reliability, all you need for batteries and more..

Model 2550 is the big-brother of Model 2551 with increased maximum current capability on a single channel.

It is very popular for material science and batteries characterization, thanks to its stability and accuracy. New features make it much more attractive, among them positive feedback control, IR compensation and manual or automatic current ranging.

Counter Electrode
Voltage Output± 16V max
Current Output± 5,5A max
Slew Rate0,01mV/s to 10V/s
ProtectionThermal, overload and short-circuit
Working Electrode
Current MeasureFrom 100nA to 10A Full Scale in 9 ranges
Current ResolutionFrom 100pA at 100nA Full Scale to 1mA at 10A Full Scale
Measuring Accuracy< 1% of Full Scale in 100nA to 1μA ranges
< 0,25% of Full Scale in 10μA to 1A ranges
< 5% of Full Scale in 10A range
Reference Electrode
Input Impedance> 1TΩ
Input Capacitance< 20pF (1m cable)
Biasing Current< 10pA at 25°C
Common Mode Rejection> 60dB full frequency response
Voltage Range± 10V max or ± 50V max
Input BNCGrounded outer contact
Polarization Capability
Voltage± 10V max
Current± 5A max
Voltage Resolution0,1mV
Current Resolution100pA
Accuracy± 0,2% & 0,1% (conversion at Full Scale)
IR Compensation
Positive Feedback Range2Ω to 100MΩ (depending on current range)
Response Time
Potentiostatic Rise time< 1μs resistive load (1000Ω)
Galvanostatic Rise time< 17μs resistive load (1000Ω)
Meters and Interfaces
A/D Converter16 BIT
D/A Converter16 BIT
Temperature Meter0 to +100°C with PT1000 probe (0,1°C resolution and ± 0,2°C accuracy)
Sampling Interval200 µs
Digital Interface
ConnectionUSB with full instrument control (baud rate 57600 – N – 8 – 1)
MemoryEEPROM 64kB – SRAM 32kB
Port Output8 external accessories
I/O Port8 optional
Cell Connections
Cables2, 3, 4 cables. BNC connector for Reference (Hi & Low) and PL258 for Working and Counter electrodes to 4mm banana connectors
Power Supply and Dimensions
Voltage Mains115 or 230V AC ±10% 50/60Hz
Power Consumption120VA max
Dimensions (L x W x H)400 x 440 x 145mm

Specifications are subject to change without previous notice

ADAmperometric Detection
PDPotentiometric Detection
DSADouble Step Amperometry
DSVDouble Step Potentiometry
PADPulsed Amperometric Detection
LSVLinear Scan Voltammetry
CYVCyclic Voltammetry
GLVGalvanostatic Linear Voltammetry
GCVGalvanostatic Cyclic Voltammetry
SWVSquare Wave Voltammetry
NPVNormal Pulse Voltammetry
ACVAlternating Current Voltammetry
DPVDifferential Pulse Voltammetry
DNVDifferential Normal Pulse Voltammetry
DAVDifferential Alternate Pulse Voltammetry
LSSLinear Scan Stripping
ACSAlternate Current Stripping
SWSSquare Wave Stripping
DASDifferential Stripping
DPSDifferential Pulse Stripping
DNSDifferential Normal Pulse Stripping
PSAPotentiometric Stripping Analysis
CCSAConstant Current Stripping Analysis

Specifications are subject to change without previous notice