The new 620, replacement for the Reference 600+™, is a high-performance potentiostat/galvanostat/ZRA particularly suitable for applications in physical electrochemistry, sensors, coatings, and corrosion.
Key features of the 620 include:
For techniques including:
Rating: 4.0 
Organization: EPRI
Application Area: Corrosion of metals
"Excellent technical service after sales. However, the product is very sensitive to grounding causing noise in results."
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.
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.
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.
Other features
SYSTEM |
|
| Potentiostat | Yes |
| Galvanostat | Yes |
| Zero Resistance Ammeter | Yes |
| Floating (Isolated from Earth Ground) | Yes |
| Cell Connections | 2, 3, 4, 5, or 6 (includes Aux channel) |
| Maximum Current | ±600 mA |
| Current Ranges | 11 (60 pA - 600 mA) |
| Current Ranges (including internal gain) |
13 |
| Minimum Current Resolution | 1.1 aA |
| Maximum Applied Potential | ±11 V |
| Rise Time | <250 ns |
| Minimum Time Base | 3.333 μs |
| Noise and Ripple | <2 μV rms |
| Weight | 3 kg |
| Dimensions | 9 (W) x 19 (H) x 27 (D) cm |
CONTROL AMPLIFIER |
|
| Compliance Voltage | ±22 V |
| Output Current | >±600 mA |
| Speed Settings | 5 |
EIS MEASUREMENT |
|
| EIS | 10 μHz - 5 MHz |
| EIS Accuracy | See Accuracy Contour Plot |
| Voltage AC Amplitude | 3 V maximum |
| Current AC Amplitude | 600 mA maximum |
ELECTROMETER |
|
| Input Impedance | >1014 Ω || <0.2 pF |
| Input Current (typical) | <10 pA |
| Bandwidth | >15 MHz at -3 dB |
| CMRR | 65 dB (1 MHz) |
POTENTIAL |
|
| Applied Accuracy | ±1 mV ±0.2% of setting |
| Applied Resolution | 200 μV, 50 μV, 12.5 μV/bit |
| Measured Accuracy | ±1 mV ±0.2% of reading |
| Measured Resolution | 1 μV, 10 μV, 100 μV, 400 μV/bit |
CURRENT |
|
| Applied/Measured Accuracy | ±10 pA ± 0.05% of range ±0.2% of value (600 mA - 6 nA) or 0.75% of value (600 pA) or 1.5% of value (60 pA) |
| Applied/Measured Resolution | 0.003% full-scale/bit |
| Bandwidth | >10 MHz (600 mA – 600 μA) >0.15 MHz (6 μA)) |
Rating: 4.0
Organization: CONICET
Application Area: Applied electrochemistry and corrosion
"Robust equipment"
Rating: 5.0
Organization: Peking University
Application Area: MEMS application
"It a good EP equipmnet, a accurate current and voltage. My experiment finally success."
Rating: 5.0
Organization: IIT Madras
Application Area: Corrosion testing of metallic samples
""We are using this equipment for 5 years. It is very easy to use and performs a lot of corrosion testing on different materials, including aluminium alloys, nickel-based superalloys, zirconium alloys, and titanium alloys.
This is value for money.
The sales care service is wonderful.""
Rating: 4.7
Organization: UIS
Application Area: Coatings
"Gamry potentiostats are very easy to use, the software is intuitive. Reproducible results can be found. The equipments have a wide application range. In my case, in the evaluation of polymer coatings for the oil & gas industry, it has been an effective tool. The impedance ranges are wide, making evaluation easy.
"
Rating: 5.0
Organization: Universidade Federal de Minas Gerais
Application Area: Corrosion studies
"The device and its software are user-friendly. The results are great, especially for very low current systems."
Rating: 4.0
Organization: Pennsylvania State University
Application Area: Corrosion protection performance of organic coatings
"I run potentiostatic electrochemical impedance spectroscopy with this equipment. The data are extremely high quality. The technique and potentiostat are very sensitive. The interface is user-friendly, and the software is easy to maneuver. I have not had to call Gamry for after-sales care, so I gave the item 3 stars in this category for neutral. Based on my phone calls with Gamry regarding other product inquiries, however, I would expect excellent after-sales care.
"
Rating: 5.0
Organization: Federal University of Minas Gerais
Application Area: Corrosion studies
"The device is very robust with excellent performance for our applications. The software is user-friendly, which is important for our lab, because we receive a lot of students without know-how in this field."
Rating: 4.7
Organization: Rio de Janeiro State University
Application Area: Corrosion test
"The potentiostat is very reliable, stable and easy to use."
Rating: 5.0
Organization: Luna Innovations
Application Area: Performance of sol-gel coatings to prevent galvanic and crevice corrosion
"The Reference 600 is an essential piece of equipment that helps me to characterize the performance of sol-gel coatings that are designed to prevent general, galvanic, and crevice corrosion. The user interface is intuitive and easy to use and whenever I have questions or need help, the customer support is always available and willing to help. I consider the Reference 600 an affordable potentiostat and essential for the development of protective coatings."
Rating: 4.3
Organization: The University of Akron
Application Area: Corrosion
"Very good potentiostat/galvanostat, easy to use and robust. It works fine for both AC and DC measurements. Computer control and software is friendly."
Rating: 4.7
Organization: Vanderbilt University
Application Area: Electrochemistry
"James Baruta was extremely helpful throughout the process. The Gamry team was able to step in and answer all questions and was able to get us a unit in in a few weeks. Made a huge difference to our results."
Rating: 5.0
Organization: Bureau of Reclamation
Application Area: Corrosion/coatings
"The Gamry Reference 600+ provides the highest accuracy and resolution of any potentiostat on the market. This is an excellent piece of equipment for studying coatings/corrosion protection."
Rating: 5.0
Organization: IIT Madras
Application Area: Corrosion test for metallic samples
"This product is very useful for our research. Gamry instruments provide the best service for us and their service is very much appreciated. I would highly recommend this product for people working in the corrosion field."
Rating: 5.0
Organization: Arizona State University
Application Area: Corrosion studies in aerospace alloys
"Easy to use and maintain the equipment. The online tutorials are very helpful as well."
Rating: 5.0
Organization: ArcelorMittal Global R&D
Application Area: Corrosion testing of steels and coatings
"I am new to the electrochemistry testing world. This is my first purchase from Gamry. I am investigating corrosion testing for steels and coatings. The setup was easy. There are several instruction videos and application notes which I referred to and are very helpful. I was able to run the instrument and conduct my tests in no time. The system is easy to use, easy to customize and the results are repeatable. I would consider buying again."
Rating: 5.0
Organization: Universidad nacional Autonoma de Mexico
Application Area: Corrosion resistance
"I have been using Gamry potentiostats since 2001 and I am very satisfied, they are easy to use, maintanin and very reliable. I already have three different instruments since the demand for them is high."
Rating: 5.0
Organization: Universidad Nacional de Colombia
Application Area: Materials characterization
"Excellent product. The instrument has been really useful in our research."
Rating: 4.7
Organization: University of Chemistry and Technology
Application Area: Electrochemical corrosion testing
"Ease of use: Use of the software is intuitive and trouble-free. After Sales Care: We have long-term excellent experience with after-sales care from Gamry - e.g. memory extension in an older Reference600 etc. Value for Money: Reference 600+ is highly sensitive and can be applied for very high impedance measurements. As a big advantage I have the option to check the current-potential figure (Lissajousse) during EIS measurements. We have more than 18 experiences with failure-free performance of some of our Gamry potentiostats and we believe Reference600+ will do the same."
Rating: 5.0
Organization: Chemical Engeneering Faculty and Textile
Application Area: Corrosion: natural inhibitors, corrosion rate metals, etc
"Reference 600 It is a dream piece of equipment, easy to use, portable and with great reproducibility of results. It has allowed us to make some publications of our research projects on corrosion inhibitors and aluminum anodizing."
Rating: 4.3
Application Area: Corrosion life prediction
"I used the Reference 600 when I first started studying corrosion in university. Now that I have a job at a research institute related to corrosion, I have come to use it again because the Gamry instrument is easy to use and the sensitivity is very good. It's not cheap, but I'm willing to pay for it because it gives good results. I recently made an additional purchase of a Reference 600+. It will continue to be my best friend for my research. Thank you to the engineers and researchers who developed the equipment."
Rating: 4.7
Organization: Ege University
Application Area: Analyze impedance
"That is a nice and easy device to use. However, it could be made a little smaller. The interface could be worked on."
Rating: 4.3
Organization: UERJ
Application Area: Corrosion, materials science
"Gamry Reference 600+Potentiostats are made to be simple but very reliable."
Rating: 4.7
Organization: BAM
Application Area: Electrochemistry
"This potentiostat system provides a huge variety of measurement opportunities. Together with suitable electrodes it helps us to understand a lot of corrosion phenomena."
Rating: 5.0
Organization: DOW CHEMICAL
Application Area: Corrosion studies
"Excellent product and service. I am very happy with this instrument and great technical support. I will definitely by from Gamry if I need any electrochemical equipment and consumables."
Rating: 5.0
Organization: Toyota Motor North America R&D
Application Area: Electrochemical study
"Excellent instrument with very intuitive and capable software. The follow-up and service from Gamry is outstanding. They always help us, even with recommendations on how to set up our experiments. Cannot recommend Gamry enough."
Rating: 4.7
Organization: University of Southern California
Application Area: Microbiology
"This Gamry potentiostat is easy to use, very sensitive, and gives reproducible results. It is also small and portable. Instrument is more or less working fine after 10 years. We have also received good customer service when needed for troubleshooting or repair."
Rating: 4.7
Organization: IMRE, A*STAR
Application Area: Electrochemical measurements, batteries, electrocatalysis
"Reference 600+ is reasonably portable, ideal for in-situ experiments. Software is easy to use, although the UI is a bit lacking compared to other brands, for example it couldn't modify your settings on the fly. But, there is an option of customised scripting that expands the experiment possibility if you're willing to invest some time to learn to code. Price is slightly more affordable than other potentiostat with similar capabilities. After sales is reasonable, queries and service request through distributor network is usually prompt, but repairs can take a while if the parts or your hardware need to be shipped to the US."
Rating: 4.0
Organization: EPRI
Application Area: Corrosion of metals
"Excellent technical service after sales. However, the product is very sensitive to grounding causing noise in results."
Rating: 5.0
Organization: ExxonMobil
Application Area: Corrosion testing
"Easy to use and reliable. However, sometimes we experienced overloading issues when runing Rp trending measurements."
Rating: 5.0
Organization: University of Utah
Application Area: Electrochemistry of molten salts
"We originally used only Autolab potentiostats in our lab, but the value and features of the Gamry potentiostats led us to purchase the Interface 1000 and Reference 600. We have been very pleased with these instruments. They are particularly powerful for the corrosion methods such as ZRA."
Rating: 5.0
Organization: Materia Inc
Application Area: Evaluating anti-corrosion coatings
"Very easy to use. It's portable so very convenient for field testing."
Rating: 5.0
Organization: Pulse Biosciences Inc
Application Area: Characterize dynamic tissue changes
"I have been using a Gamry 600+ in various applications of bioelectrochemistry for the past 10 years. This is the best device on the market for my needs."
Rating: 4.3
Organization: Korea Institute of Materials Science
Application Area: Corrosion tests
"Reference 600+ (+ Softwares and Accessories) Overall + Hardware is very powerful - Softwares (Framework & Echem Analyst) should be improved Pros. + Very satisfying specification (No competitor in Pstat/Gstat/Impedance Analyzer) + Compactness + Electrodes and cells are also satisfying + Basic functions, script, and sequence wizard is very powerful + South Korean vendors (Won-A Tech) are always ready to help Cons. - Relatively expensive compared to other Pstats (But it is reasonable). - Framework & Echem Analyst(EA) need improvements to user interface 1. Setting up save file location is not intuitive. 2. In EA, when I open multiple data, the load data windows always shows designated folder. It should show the latest open folder for better convenience. 3. During EIS analysis, saved equivalent circuits does not appear in a fitting window. 4. Graphical user interface should be improved."
Rating: 4.7
Organization: Universidad Carlos III de Madrid
Application Area: Electrochemical corrosion in concrete, organic coatings
"It allows us to easily get results at low frequencies due to the impedance of the equipment. This is great when using organic coatings and steel coupons embedded in mortar/concrete."
Rating: 5.0
Organization: Universidad nacional Autonoma de Mexico
Application Area: Corrosion evaluation of coatings
"Easy to use, reliable and good sensitivity. The ability to model using any computer is great."
Rating: 4.3
Organization: PowerTech Water
Application Area: Analyze carbon electrodes
"Software is easy to use and the customer service Gamry offers is exceptional. Everyone I have every spoked to has been extremely knowledgeable about the product and electrochemistry."
Rating: 4.7
Organization: Fda
Application Area: Electrical sStimulation of bacterial biofilms
"Gamary Ref 600+ is a great product and I am happy with it and still at the early stages of exploring the equipment and its capacities."
Rating: 5.0
Organization: University of Canterbury
Application Area: Electrocatalysis and flow battery analysis
"Gamry potentiostats are very nice instruments. Easy to use (especially via sequencer) and produce very high quality data. Since my first G750, I now have 2x Ref600+, 2x Ref3000 and 2x Interface1000. I especially like the additional I/O connector which I use to control extra equipment (light / shutters for photoelectrochem, pumps for flow batteries etc). I also like being able to measure cell/compliance voltage simultaneously with working-reference potentials. The online support is brilliant - the application notes are very useful- especially info like checking impedance of reference electrodes."
Rating: 5.0
Organization: PPG-Whitford
Application Area: Coatings analysis
"Gamry was outstanding in service and after sales training. We use this instrument to better our knowledge of our coatings and speed up development time. They help take the mystery out of the science of EIS."
Rating: 4.3
Organization: Aalto University
Application Area: Supercapacitor, batteries
"Excellent equipment. Reliable results. Excellent technical support especially from Dan. It's used everyday."
Rating: 4.3
Organization: Utdallas
Application Area: Electrochemical measurement
"Gamry potentiostat is a very useful tool we use in the lab. They have a nice technical support team. Good value for money. Very versatile"
Rating: 4.7
Organization: A Plus Coating Solutions Inc.
Application Area: Testing coating impedance
"The instrument is easy to use. I used the instrument to determine the impedance of the applied coating sample. The instrument is stable and the result is reliable."
Rating: 4.3
Organization: Shawcor
Application Area: Analyzing coating impedance
"The software and instruction was easy to follow and straight forward to understand. However, Gamry could have provided more tutorial and background knowledge of each of the functions of the machine"
Rating: 5.0
Organization: Binghamton University
Application Area: CURE. CV, CA, and EIS
"In terms of performance, this instrument has produced reproducible and accurate results. The potentiostat and software are easy to use (I've trained 30 freshmen to work independently on this device for a CURE. CV, CA, and EIS). We've had good luck with all aspects of the instrument's constant use for the past year. Definitely worth the investment in terms of cost."
Rating: 5.0
Organization: Rio de Janeiro State University
Application Area: Corrosion
"The equipment is very reliable. However, I have a technical problem and the representatives in Brazil solved it quickly."
Rating: 5.0
Organization: UA
Application Area: Electrochemistry, semiconductors, sensors, impedance
"The measurement was easy and reliable."
Rating: 5.0
Organization: Acibadem University
Application Area: Electropolymerization, biosensor fabrication
"It is a user-friendly and reliable instrument for all kinds of electroanalysis. I have been using Gamry potentiostats since 2002 and have never had a problem."
Rating: 5.0
Organization: Arcelormittal
Application Area: Corrosion
"It came in a good package. I didn’t have much experience with potentiostats but it was easy to setup and get started. After sales support was also good. With Gamry notes and webinars I could run various potentiostatic and potentiodynamic tests. I was primarily comparing corrosion resistance of different coated steels. The data is easy to view. Testing programs can be easily built. A lot is self-explanatory. I would buy it again."
Rating: 4.3
Organization: UERJ
Application Area: Corrosion, materials science
"The software is simple and the results are very stable and reliable. I recommend this brand of equipment."
Rating: 5.0
Organization: University at Buffalo
Application Area: Corrosion measurements in reinforced concrete structures
"I have used Gamry Reference 600+ to perform electrochemical corrosion measurements during my Ph.D. dissertation. This device is an accurate piece of equipment, which is super easy to setup and use. There is a lot of useful information available on the Gamry website to learn how to work with the device and the Echem Analyst software. It's also very easy to calibrate. I just faced one problem with the cable (the connection got damaged) and Gamry support team immediately gave me a new cable for free. Very satisfied with the equipment and the service at Gamry! Keep it up Gamry!"
Rating: 4.3
Organization: Pamukkale University
Application Area: Impedance for conducting polymers
"I characterized conducting polymer by impedance spectroscopy. I am using Gamry Reference 600 potentiostat. I am so satisfied with the results."
Rating: 5.0
Organization: Federal University of Minas Gerais
Application Area: Corrosion studies
"The device is very robust with excellent performance for our applications. The software is user-friendly, which is important for our lab, because we receive a lot of students without know-how in this field."
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