Overview
The Reference 620 is a high-performance, research-grade potentiostat/galvanostat/ZRA designed for fast, low-current measurements.  It does well for a variety of applications such as physical electrochemistry (especially at microelectrodes), fast cyclic voltammetry, electrochemical corrosion, electrochemical noise measurements, paints and coatings, and sensors.  
It has a number of auxiliary input and outputs designed to help you interface or control ancillary equipment such as a rotating disc electrode. It also has a thermocouple input for temperature measurements. 
Electrochemical Impedance Spectroscopy
The Reference 620 comes fully equipped to perform electrochemical impedance spectroscopy.  The Accuracy Contour Plot shown below provides a detailed look at the performance you can expect from your instrument in real-world situations. The results include the cell cable.

Options
- Extended Cable Lengths
- Extended length cell cables (1.5 m, 3 m, 10 m) are also available for your convenience.
 
 
		
		
			
					Below are additional details regarding the capabilities of the Reference 620 potentiostat. Each bullet point contains a list of the type of techniques available for the instrument to run.
- Physical Electrochemistry  - Techniques such as cyclic voltammetry, chronoamperometry, and chronopotentiometry and derivatives of these techniques.  
- Pulse Voltammetry - Techniques such as pulse voltammetry, square wave voltammetry, and associated stripping techniques such as anodic stripping voltammetry.  
- DC Corrosion - Run standard DC corrosion tests such as polarization resistance, potentiodynamic, cyclic polarization, and galvanic corrosion in addition to a number of others.
- Electrochemical Energy - Test single-cells and stacks of various batteries, fuel cells or supercapacitors. Includes charge, discharge, cyclic charge-discharge techniques, potentiostatic, galvanostatic, self-discharge, leakage rate, and read cell voltage.
- Electrochemical Signal Analyzer -  Designed specifically for the acquisition and analysis of time-dependent electrochemical noise signals. Cell voltage and current are continuously monitored at rates from 0.1 Hz to 1 kHz. A full featured set of analysis tools provides powerful analysis features such as statistical analysis, detrending, impedance spectra, and histogram analysis.
- Electrochemical Frequency Modulation - A non-destructive corrosion rate measurement technique. It allows for measurement of the corrosion rate without prior knowledge of the Tafel constants. In addition, the technique determines the Tafel constants and provides 2 internal validity checks.
- Critical Pitting Temperature - controls a Gamry Potentiostat, TDC5 Temperature Controller, and associated accessories to automatically measure the Critical Pitting Temperature of a material.
- Electrochemical Noise - A more general form of electrochemical noise testing. It is also an ECM8 Multiplexer compatible electrochemical noise software package. 
- Electrochemical Impedance Spectroscopy - includes experimental scripts for potentiostatic, galvanostatic and hybrid impedance spectroscopy experiments in addition to single frequency techniques like Mott-Schottky. We also have our unique power-leveling multisine technique that improves signal-to-noise across the spectrum. On the analysis side, it provides tools for fitting spectra to equivalent circuit models, Kramers-Kronig transform for data validation and a graphical model editor. Our software even includes a script for EIS simulation.
- eChemDC Toolkit - contains all of the capabilities of the eChemBasic and further extends these capabilities by adding advanced signals and data acquisition modes to simplify implementing experiments like cyclic voltammetry, pulse voltammetry, and dynamic DC corrosion techniques. Also includes more advanced stop tests, particularly useful in fast experiments.
- eChemAC - Includes full capabilities of eChemDC Toolkit plus allows electrochemical impedance spectroscopy (EIS) and EFM experiments.
Other features
- 2, 3, and 4 electrode measurements
- Electrical Isolation
- Floating instrument: use with autoclaves, mechanical stress apparatus, or pipeline probes.
 
- Built-In EIS
- On-board DDS to perform EIS from 10 µHz to 5 MHz. 
 
- DSP (Digital Signal Processing) Mode
- Oversamples for improved signal-to-noise and accurate capacitance measurements.
 
- Current Interrupt and Positive Feedback iR Compensation
- Gamry potentiostats and their controlling software use control loop algorithms to accurately measure and correct for uncompensated resistance.
 
- Auxiliary I/O
- Control additional equipment via additional I/O interfaces: external signal input, analog voltage output, analog current output, auxiliary A/D input, and digital I/O connector.
 
- Warranty
- Protected by 2-year factory service warranty.
 
 
			 
		
		
		
			
				
					
	Robust equipment with multiple applications in electrochemistry.
	Rating: 4.0 
	Organization: CONICET
	Application Area: Applied electrochemistry and corrosion
	
		
	
 
				
					
	Great result
	Rating: 5.0 
	Organization: Peking University
	Application Area: MEMS application
	
		
	
 
				
					
	Amazing instrument to use. 
	Rating: 5.0 
	Organization: IIT Madras
	Application Area: Corrosion testing of metallic samples
	
		
	
 
				
					
	Great results, reproducible results, easy to use
	Rating: 4.7 
	Organization: UIS	
	Application Area: Coatings
	
		
	
 
				
					
	Great results
	Rating: 5.0 
	Organization: Universidade Federal de Minas Gerais
	Application Area: Corrosion studies
	
		
	
 
				
					
	The Reference 620 Potentiostat is the Cadillac of potentiostats!
	Rating: 4.0 
	Organization: Pennsylvania State University
	Application Area: Corrosion protection performance of organic coatings
	
		
	
 
				
					
	Great results, easy to use and install
	Rating: 5.0 
	Organization: Federal University of Minas Gerais
	Application Area: Corrosion studies
	
		
	
 
				
					
	Reliable results in electrochemistry with this potentiostat.
	Rating: 4.7 
	Organization: Rio de Janeiro State University
	Application Area: Corrosion test
	
		
	
 
				
					
	Essential for the development of protective coatings.
	Rating: 5.0 
	Organization: Luna Innovations
	Application Area: Performance of sol-gel coatings to prevent galvanic and crevice corrosion
	
		
	
 
				
					
	Very good potentiostat/galvanostat, easy to use and robust.
	Rating: 4.3 
	Organization: The University of Akron
	Application Area: Corrosion
	
		
	
 
				
					
	Excellent precision and ease of use.  
	Rating: 4.7 
	Organization: Vanderbilt University
	Application Area: Electrochemistry
	
		
	
 
				
					
	Excellent analytical equipment for evaluating coatings and corrosion protection.
	Rating: 5.0 
	Organization: Bureau of Reclamation
	Application Area: Corrosion/coatings
	
		
	
 
				
					
	Great results. Highly recommended. 
	Rating: 5.0 
	Organization: IIT Madras
	Application Area: Corrosion test for metallic samples
	
		
	
 
				
					
	User friendly, compact and works great! 
	Rating: 5.0 
	Organization: Arizona State University
	Application Area: Corrosion studies in aerospace alloys
	
		
	
 
				
					
	Easy setup, good help videos and works great!
	Rating: 5.0 
	Organization: ArcelorMittal Global R&D
	Application Area: Corrosion testing of steels and coatings
	
		
	
 
				
					
	Very good results at all times and reliable.
	Rating: 5.0 
	Organization: Universidad nacional Autonoma de Mexico
	Application Area: Corrosion resistance
	
		
	
 
				
					
	Excellent product.
	Rating: 5.0 
	Organization: Universidad Nacional de Colombia
	Application Area: Materials characterization
	
		
	
 
				
					
	Sensitive, confident and relatively easy to use instrument.
	Rating: 4.7 
	Organization: University of Chemistry and Technology
	Application Area: Electrochemical corrosion testing
	
		
	
 
				
					
	Excellent! Its a powerful instrument.
	Rating: 5.0 
	Organization: Chemical Engeneering Faculty and Textile
	Application Area: Corrosion: natural inhibitors, corrosion rate metals, etc
	
		
	
 
				
					
	Reference 600+ is the best partner in my research. Thank you for developing it.
	Rating: 4.3 
	
	Application Area: Corrosion life prediction
	
		
	
 
				
					
	Makes us to belive in our results.
	Rating: 4.7 
	Organization: Ege University
	Application Area: Analyze impedance
	
		
	
 
				
					
	Very good equipment.
	Rating: 4.3 
	Organization: UERJ
	Application Area: Corrosion, materials science
	
		
	
 
				
					
	Very suitable tool for materials evaluation.
	Rating: 4.7 
	Organization: BAM
	Application Area: Electrochemistry
	
		
	
 
				
					
	Number one for sure.
	Rating: 5.0 
	Organization: DOW CHEMICAL
	Application Area: Corrosion studies
	
		
	
 
				
					
	Great results. We use the instrument daily.
	Rating: 5.0 
	Organization: Toyota Motor North America R&D
	Application Area: Electrochemical study
	
		
	
 
				
					
	High quality potentiostat.
	Rating: 4.7 
	Organization: University of Southern California
	Application Area: Microbiology
	
		
	
 
				
					
	Good, capable and portable potentiostat.
	Rating: 4.7 
	Organization: IMRE, A*STAR
	Application Area: Electrochemical measurements, batteries, electrocatalysis
	
		
	
 
				
					
	Good product. 
	Rating: 4.0 
	Organization: EPRI
	Application Area: Corrosion of metals
	
		
	
 
				
					
	Great tool to measure Rp trending for corrosion measurements!
	Rating: 5.0 
	Organization: ExxonMobil
	Application Area: Corrosion testing
	
		
	
 
				
					
	Great value and functionality
	Rating: 5.0 
	Organization: University of Utah
	Application Area: Electrochemistry of molten salts
	
		
	
 
				
					
	Very reliable and versatile 
	Rating: 5.0 
	Organization: Materia Inc
	Application Area: Evaluating anti-corrosion coatings
	
		
	
 
				
					
	Excellent instrument and company
	Rating: 5.0 
	Organization: Pulse Biosciences Inc
	Application Area: Characterize dynamic tissue changes
	
		
	
 
				
					
	I am satisfied by its power but software should be improved.
	Rating: 4.3 
	Organization: Korea Institute of Materials Science
	Application Area: Corrosion tests
	
		
	
 
				
					
	Excellent impedance!
	Rating: 4.7 
	Organization: Universidad Carlos III de Madrid
	Application Area: Electrochemical corrosion in concrete, organic coatings
	
		
	
 
				
					
	I already have three of them, since it is an excellent piece of equipment.
	Rating: 5.0 
	Organization: Universidad nacional Autonoma de Mexico
	Application Area: Corrosion evaluation of coatings
	
		
	
 
				
					
	Great product for lab use.
	Rating: 4.3 
	Organization: PowerTech Water
	Application Area: Analyze carbon electrodes
	
		
	
 
				
					
	Good instrument. 
	Rating: 4.7 
	Organization: Fda
	Application Area: Electrical sStimulation of bacterial biofilms
	
		
	
 
				
					
	Gamry potentiostats are great. I started with one and now own six.
	Rating: 5.0 
	Organization: University of Canterbury
	Application Area: Electrocatalysis and flow battery analysis
	
		
	
 
				
					
	Excellent quality & service.
	Rating: 5.0 
	Organization: PPG-Whitford
	Application Area: Coatings analysis
	
		
	
 
				
					
	Excellent equipment! 
	Rating: 4.3 
	Organization: Aalto University
	Application Area: Supercapacitor, batteries
	
		
	
 
				
					
	Great reliable results
	Rating: 4.3 
	Organization: Utdallas
	Application Area: Electrochemical measurement
	
		
	
 
				
					
	EIS is one of the important methods for coating performance evaluation
	Rating: 4.7 
	Organization: A Plus Coating Solutions Inc.
	Application Area: Testing coating impedance
	
		
	
 
				
					
	Great equipment
	Rating: 4.3 
	Organization: Shawcor
	Application Area: Analyzing coating impedance
	
		
	
 
				
					
	Reference 600+.  Definitely worth the investment in terms of cost.
	Rating: 5.0 
	Organization: Binghamton University 
	Application Area: CURE. CV, CA, and EIS
	
		
	
 
				
					
	Great equipment.
	Rating: 5.0 
	Organization: Rio de Janeiro State University
	Application Area: Corrosion
	
		
	
 
				
					
	Good results
	Rating: 5.0 
	Organization: UA
	Application Area: Electrochemistry, semiconductors, sensors, impedance
	
		
	
 
				
					
	Superb potentiostat
	Rating: 5.0 
	Organization: Acibadem University
	Application Area: Electropolymerization, biosensor fabrication
	
		
	
 
				
					
	Good results! Easy to use!
	Rating: 5.0 
	Organization: Arcelormittal
	Application Area: Corrosion
	
		
	
 
				
					
	Great equipment for a corrosion laboratory.
	Rating: 4.3 
	Organization: UERJ
	Application Area: Corrosion, materials science
	
		
	
 
				
					
	Great equipment - easy to use and calibrate. 
	Rating: 5.0 
	Organization: University at Buffalo
	Application Area: Corrosion measurements in reinforced concrete structures
	
		
	
 
				
					
	Designed to measure impedance
	Rating: 4.3 
	Organization: Pamukkale University
	Application Area: Impedance for conducting polymers
	
		
	
 
				
					
	Great results, easy to use and install
	Rating: 5.0 
	Organization: Federal University of Minas Gerais
	Application Area: Corrosion studies