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Shandong Hongde Industrial Co., Ltd
Overview of Electrochemical Analyzer
NegotiableUpdate on 05/07
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Overview
The 600F series is an iterative upgrade product of the 600E series. After the upgrade, it has a faster data acquisition speed and uses a dual channel synchronous ADC with 16 bit resolution and 2.5MHz. Previously, the dual channel synchronous ADC was 1MHz. $r $n $r $nCV testing supports a sampling interval of 1mV at a scan rate of 2500V/s. Previously, the sampling interval was 1mV at a scanning speed of 1000V/s.
Product Details
The CHI600F series is a universal electrochemical analysis measurement system. The following is a schematic diagram of the hardware structure of the instrument. The instrument contains a fast digital signal generator, a direct digital signal synthesizer for high-frequency AC impedance measurement, a dual channel high-speed data acquisition system, a potential current signal filter, multi-stage signal gain, iR drop compensation circuit, and a constant potential/constant current meter (660F). The potential range is ± 10V and the current range is ± 250mA. The lower limit of current measurement is below 10pA. It can be directly used for steady-state current measurement on microelectrodes. If connected to CHI200B microcurrent amplifier and shielding box, it can measure currents of 1pA or lower. If connected to the CHI680D high current amplifier, the current range can be expanded to ± 2A. The CHI600F series is also a very fast instrument. The update rate of the signal generator is 10MHz, and two synchronous 16 bit high-resolution and low-noise analog-to-digital converters are used for data acquisition. The maximum rate for dual channel simultaneous sampling is 2.5MHz. Dual channel synchronous current and potential sampling can accelerate the speed of impedance measurement. Some experimental methods have a time scale of up to ten orders of magnitude and a very wide dynamic range. When the scanning speed of cyclic voltammetry is 1000V/s, the potential increment is only 0.1mV. When the scanning speed is 5000V/s, the potential increment is 1mV. For example, the measurement frequency of AC impedance can reach 3MHz, and the frequency of AC voltammetry can reach 10KHz. The instrument can operate in the form of two, three, or four electrodes. Four electrodes can be used for electrochemical measurements at liquid/liquid interfaces, and are also important for high current or low impedance electrolytic cells (such as batteries) to eliminate measurement errors caused by cables and contact resistance. The instrument also has an external signal input channel, with a maximum synchronization rate of 2.5MHz for 16 bit high-resolution sampling. It is possible to record external input voltage signals, such as spectral signals, while recording electrochemical signals. This is extremely convenient for experiments such as spectroscopic electrochemistry.
The 600F series is an iterative upgrade product of the 600E series. After the upgrade, it has a faster data acquisition speed and uses a dual channel synchronous ADC with 16 bit resolution and 2.5MHz. Previously, the dual channel synchronous ADC was 1MHz.
CV testing supports a sampling interval of 1mV at a scanning speed of 2500V/s. Previously, the sampling interval was 1mV at a scanning speed of 1000V/s.
The minimum sampling interval for CA has been reduced from 1 microsecond to 0.4 microsecond, with dual channel synchronization.
The new model will have faster data transfer speed under the USB 3.0 interface. The scanning speed of real-time data transmission for CV has been increased from 3V/s to 12V/s. The real-time data transmission interval of i-t and CA technology has been reduced from 0.0003333 seconds to 0.0001 seconds.
The frequency of AC impedance is increased to 3MHz.
We have added current interruption iR compensation, constant current intermittent titration technology (GITT), and constant potential intermittent titration technology (PITT).
The CHI600F series hardware adopts high-speed processors, fast amplifiers, fast analog-to-digital converters, and digital to analog converters. The timed electricity method adds an analog integrator. A 16 bit high-resolution and highly stable current bias circuit is used to achieve current zeroing output, and can also be used to improve the dynamic range of AC measurement current. High resolution analog-to-digital converters have better signal-to-noise ratios and provide a larger dynamic range for sensitivity settings.
The CHI600F series also allows for upgrading to a dual working electrode electrochemical analyzer (dual potentiostat). The new design includes a circuit board with a second channel for potential control, current voltage conversion, multi-stage gain, and low-pass filter, making it the CHI700F series dual working electrode electrochemical analyzer (dual potentiostat).
The CHI600F series instruments integrate almost all commonly used electrochemical analysis and measurement techniques. In order to meet different application needs and funding conditions, the CHI600F series is divided into multiple models. Different models have different electrochemical analysis measurement techniques and functions, but the basic hardware parameter indicators and software performance are the same. CHI600F and CHI610F are basic types used for mechanism research and analytical applications, respectively. They are also excellent teaching instruments. CHI602F and CHI604F can be used for corrosion research. CHI620F and CHI630F are comprehensive electrochemical analyzers, while CHI650F and CHI660F are better electrochemical workstations.
CHI600FSeries electrochemical analyzer/Block diagram of workstation
Hardware parameter indicators
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Potentiostat · Zero resistance ammeter · 2，3，4electrode structure · Floating ground wire or on-site · Maximum potential range:±10V · Maximum current±250mAcontinuous,±350mApeak · Slot pressure:±13V · Rise time of potentiostat: less than1ms,usually0.8ms · Constant potential instrument bandwidth（-3Decibel level):1MHz · Range of applied potential:±10mV, ±50mV, ±100mV, ±650mV, ±3.276V, ±6.553V, ±10V · Resolution of applied potential: potential range0.0015% · Accuracy of applied potential:±1mV,±Full range0.01% · Applied potential noise:<10mVroot-mean-square value · Measuring current range:±10pAto±0.25A，12range · Measurement current resolution: current range0.0015%，0.3fA · Accuracy of current measurement:The current sensitivity is 0.2% from 1e-3A/V to 1e-7A/V, and 1% in other ranges · Input bias current:<10pA
Constant current meter(CHI660F) · Constant current range: 0.3nA–250mA · Current resolution applied: within the current range0.03% · Measurement potential range:±0.025V,±0.1V,±0.25V,±1V,±2.5V,±10V ·Accuracy of applied current: ± 20pA, 0.3% for currents 3e-7A to 3e-3A, and 1% for other ranges potentiometer ·Reference electrode input impedance:1e12ohm ·Reference electrode input bandwidth:10MHz ·Reference electrode input bias current:<=10pA @ 25°C
Waveform generation and data acquisition system · Fast signal update rate:10MHz，16Positional resolution · Quick Data Collection System:Dual channel 16 bit resolution ADC, synchronous sampling rate of 2.5MHz · Maximum sampling rate of external signal recording channel:2.5MHz
Attachment · electrode wire ·USBcommunication line · power cord |
experimental parameters ·CVandLSVScanning speed:0.000001V/sto10,000V/s · Potential increment during scanning:0.1mVWhen the scanning speed is1,000V/sWhen) ·CAandCCPulse width:0.0001to1000sec ·CAandCCMinimum sampling interval:0.4ms ·CCAnalog integrator ·DPVandNPVPulse width:0.001to10sec ·SWVFrequency:1Hzto100kHz ·i-tMinimum sampling interval:0.4ms ·ACVFrequency range:0.1Hzto10kHz ·SHACVFrequency range:0.1Hzto5kHz ·FTACVFrequency range:0.1Hzto50HzIt can simultaneously obtain fundamental, second harmonic, third harmonic, fourth harmonic, fifth harmonic, and sixth harmonicACVdata · Communication impedance:0.00001Hzto3MHz · Amplitude of AC impedance waveform:0.00001Vto0.7Vroot mean square value
Other characteristics · Automatic or manualiRReduce compensation (positive feedback and current interruption method) · Current measurement bias: full range,16Positional resolution,0.003%accuracy · Potential measurement bias:±10V，16Positional resolution,0.003%accuracy · External potential input · Analog output of potential and current · Cut off frequency of controllable potential filter:1.5MHz,150KHz,15KHz,1.5KHz,150Hz,15Hz,1.5Hz, 0.15Hz · Cut off frequency of controllable signal filter:1.5MHz,150KHz,15KHz,1.5KHz,150Hz,15Hz,1.5Hz, 0.15Hz · Rotating electrode control voltage output（CHI630FThe above models): 0-10VFor use in0-10000rpmThe rotational speed,16Positional resolution,0.003%Accuracy requires certain rotating electrode devices to work · Macro commands can be used to control digital input and output lines · Internal flash memory can quickly update programs · USBOral data communication · Electrolytic cell control: nitrogen supply, stirring, tapping (requires special electrolytic cell system) ·CVDigital simulators and fitters. User defined reaction mechanism（CHI630FAbove) or pre-defined reaction mechanism (other models) · AC impedance simulator and fitting device (models with AC impedance measurement function) · Maximum data length:256K-16384KOptional · Instrument size:37 cm (wide)´23 cm (deep)´12 cm (tall) |
CHI600FComparison of different models of series instruments
function |
600F |
602F |
604F |
610F |
620F |
630F |
650F |
660F |
Cyclic voltammetry（CV） |
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Linear sweep voltammetry（LSV）& |
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Step wave voltammetry（SCV）#& |
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TableFigure（TAFEL） |
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Chronoamperometry method（CA） |
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Timed electricity method（CC） |
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Differential pulse voltammetry（DPV）#& |
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Conventional pulse voltammetry（NPV）#& |
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Differential conventional pulse voltammetry（DNPV）#& |
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Square wave voltammetry（SWV）& |
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Communication (including phase sensitivity) Fu An Fa（ACV）#&$ |
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Second harmonic alternating current (phase sensitive) voltage method（SHACV）#&$ |
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Fourier transform alternating current voltammetry（FTACV） |
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current-Time curve（i-t） |
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Differential pulse current detection（DPA） |
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Double differential pulse current detection（DDPA） |
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Three pulse current detection（TPA） |
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Integral pulse current detection（IPAD） |
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Control potential electrolytic Coulomb method（BE） |
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Fluid dynamics modulation voltammetry（HMV） |
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scan-Step mixing method（SSF） |
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Multi potential step method（STEP） |
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Constant potential intermittent titration method（PITT） |
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AC impedance measurement（IMP） |
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AC impedance-Time measurement（IMPT） |
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AC impedance-Potential measurement（IMPE） |
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Chronopotentiometric method（CP） |
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Current scanning chronopotentiometry method（CPCR） |
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Multi current step method（ISTEP） |
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Constant current intermittent titration method（GITT） |
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Potentiometric dissolution analysis（PSA） |
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Electrochemical noise measurement（ECN） |
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open-circuit voltage-Time curve（OCPT） |
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Constant current meter |
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RDEControl（0-10VOutput) |
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Arbitrary reaction mechanismCVsimulator |
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Pre-set reaction mechanismCVsimulator |
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Communication impedance digital simulator and fitting program |
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Note: #&: including corresponding polarography and stripping voltammetry. Special static mercury electrodes or hammers are required for use in polarography.
$: can obtain the selected phase data
*The price does not include computers. The warranty period for the instrument is one year.
