ER466 Integrated Potentiostat System


ER466  Integrated Potentiostat System

 

ER466 Integrated Potentiostat System

  • Ideal for cyclic voltammetry, linear sweep and pulse techniques
  • Potentiostat, galvanostat, ammeter and voltmeter modes
  • Maximum 100 mA and ±10 V
  • Expandable using isoPod amplifiers
  • High accuracy 
  • Windows 7, 8 and 10 compatible

Overview

The ER466 Integrated Potentiostat System is our most popular potentiostat model, being ideal for cyclic, linear sweep, and most analytical pulse voltammetric experiments, either in the research or teaching laboratory. It also functions as a galvanostat, ZRA (zero resistance ammeter), and high impedance voltmeter (electrometer). Connection to a computer is via a USB cable.

A full list of electrochemistry techniques availabe can be seen here.

The Integrated Potentiostat is normally sold as part of the EChem Startup System, which includes the software (EChemChart and Scope) and the electrode kit. It can also be purchased as:

  • ER466E: Integrated Potentiostat with EChem software for voltammetric techniques.
  • ER466C: Integrated Potentiostat with Chart and Scope software for constant potential and constant current experiments.
  • ER466CE: Integrated Potentiostat with EChem, Chart and Scope software.

Two additional, general purpose, input channels are available that can be used for recording signals from other devices (temperature, pressure, quartz crystal microbalance, light intensity etc) along with the current and potential signals of the potentiostat, all within a compact footprint to save bench space.

Current signal sensitivity ranges from sub nanoamp up to 100 mA which support a wide range of applications.

Voltage-clamp type experiments can be performed on tethered membrane systems with a tethaPatch for studies of ion channels using Scope and Chart software.

With the addition of an EA167 Dual Reference Adaptor, the potentiostat becomes a 4-electrode system with one working, one counter, and two reference electrodes for the measurement of currents across:
  • membranes (4-electrode voltage clamp), or
  • the interface between two immiscible electrolyte solutions (ITES).

Specifications

  • Current ranges (and resolution):
         100 mA   (3.13 µA)          50 mA   (1.56 µA)         20 mA   (625 nA)
         10 mA   (313 nA)             5 mA  (156 nA)             2 mA   (62.5 nA)
         1 mA   (31.3 nA)              500 nA  (15.6 nA)         200 µA   (6.25 nA)
         100 µA   (3.13 nA)           50 µA  (1.56 nA)           20 µA   (625 pA)
         10 µA   (313 pA)              5 µA  (156 pA)              2 µA   (62.5 pA)
         1 µA   (31.3 pA)               500 nA  (15.6 pA)         200 nA   (6.25 pA)
         100 nA   (3.13 pA)           50 nA  (1.56 pA)           20 nA   (625 fA)
  • Applied Potential: ±10 V max
  • Compliance: >12 V
  • Scan rate: 1 µV/s to >100 V/s (EChem software) 

General Purpose Inputs
Input channels: Input 1, Input 2
Input ranges:   Range     Gain
                           ±10 V       1
                           ±5 V         2
                           ±2 V         5
                           ±1 V        10
                           ±0.5 V     20
                           ±0.2 V     50
                           ±0.1 V    100
                           ±50 mV  200
                           ±20 mV  500
Maximum input voltage: ±30 V (Ch 2, external detector)
Input impedance: ~1 MΩ
Low-pass input filter: 3000 Hz, 2nd order Bessel
DC drift: <1 μV/°C
CMRR (differential): –105 dB @ 100 /s (typical)
Channel crosstalk: > –140 dB
Input noise (p-p):  Range       @10 /s   @100 /s
                              ±10 V       3 μV          5 μV
                              ±1 V         1 μV          2 μV
                              ±100mV  0.25 μV      0.3 μV

Potentiostat
Input channels: Input 3 (current), Input 4 (potential)
Current ranges:  ±1, 2, 5, 10, 20, 50, 100 mA
                           ±1, 2, 5, 10, 20, 50, 100, 200, 500 μA
                           ±20, 50, 100, 200, 500 nA
Input impedance: 10 ^13 Ω
Compliance: > 12 V
Bandwidth (unity loop gain): 16 kHz (@ –90° lag)
160 Hz (high stability mode, @ –90° lag)
Voltage offset error: ±1 mV
Voltage gain error: 0.1%
Gain Accuracy: 0.2% at ranges of up to 1 mA
1% at 10 – 100 mA ranges
Slew rate: 3 V/μs
Applied potential ranges: ±200, 500 mV, 1, 2, 5, 10 V
iR Compensation: 0 – 10 MΩ

Sampling
ADC: 24 bit sigma delta convertor
System resolution: 22 bits
Sampling rates: 12 /min to 100 kHz (Chart Software)
100 Hz to 100 kHz (EChem software)
Scan rate: 1 μV/s to >100 V/s (EChem software)
Linearity error: <0.001% of FSR

Output Amplifier
Output configuration: Single-ended
Output resolution: 16 bits
Maximum output current: 10 mA maximum
Output impedance: 0.1 Ω typical
Slew rate: 1 V/μs
Settling time: 20 μs (to within 0.01% of FSR)
Output range:  Range  Resolution
                        ±10 V  312.5 μV
                        ±5 V  156.5 μV
                        ±2 V  62.5 μV
Linearity error ±1 LSB (from 0 °C to 70 °C)

Instrument Connection Port
Type: 20 pin male connector, 3.5 mm spacing.
Terminal block adaptor supplied.

Digital Output Controls
Outputs: 4 contact closure or TTL level. Set by software.
Contact closures: 100 mA maximum. ±24 V maximum.
‘On’ resistance 25 Ω typical, 50 Ω maximum.
Close time 1.5 ms; Open time 1 ms.
TTL level: 4 V high @ 1 mA maximum each
0.5 V low at 15 mA maximum each

Microprocessor and Data Communication
CPU: FREESCALE DSP56858
RAM: 16 MB SRAM
EEPROM: 4 MB
Data communication: USB 2.0 or 1.1 compliant

Expansion Ports
I2C expansion port: Power and control bus for eDAQ Amps
(maximum of 500 mA).

Physical Configuration
Dimensions (w x h x d): 200 x 65 x 250 mm (7.9 x 2.6 x 9.8″)
Weight: 1.75 kg (3 lb 14 oz)
Power Requirements: 90 – 250 V AC 50/60 Hz, 25 VA
Operating conditions: 0 to 35 °C
0 to 90% humidity (non-condensing)