设为首页加入收藏
轮播广告
  • 产品详情
    Name:CHI690 electrochemical workstation
    CHI690 for Universal electrochemical measurement system. Containing fast digital signal generator, high-speed data acquisition system, the potential current signal filter, multi-level signal gain, iR drop compensation circuit, and potentiostat / galvanostat (E). Potential range of ± 10V, current range of ± 400mA.
    CHI690 for Universal electrochemical measurement system. Containing fast digital signal generator, high-speed data acquisition system, the potential current signal filter, multi-level signal gain, iR drop compensation circuit, and potentiostat / galvanostat (E). Potential range of ± 10V, current range of ± 400mA. 
    Current measurement limit lower than 50pA. Steady-state current measurements can be used directly on ultramicroelectrode. If the connection CHI200 micro-current amplifier and a shielding box, measurable 1pA or lower current. If high-current amplifier is connected with CHI680 current range can be widened to ± 2A. 
    CHI690 very fast instrument. Update rate of the signal generator to 10MHz, data acquisition using two synchronized 16 low-noise high-resolution ADC, the highest rate of dual-channel simultaneous sampling of 1MHz. Dual-channel synchronous current potential sampling can accelerate the speed of the impedance measurement. 
    Some experimental methods timescales up to ten orders of magnitude, the dynamic range is extremely broad. Scan speed cyclic voltammetry of 1000V / s, the potential increment only 0.1mV, when the scanning speed of 5000V / s, potential increments of 1mV. Another example is the AC impedance measurement frequency up to 1MHz, the frequency of the AC voltammetry up to 10KHz. 
    Instrument can work in two, three, or four-way electrodes. Four electrodes can be used for liquid / liquid interface electrochemical measurements, for large currents or low-impedance electrolytic cell (such as batteries) is also very important to eliminate measurement errors due to cable and contact resistance caused. Instruments as well as external signal input channel, simultaneous sampling of up to 16 high-resolution rate of 1MHz. Recording the electrochemical signal can be recorded while the external input voltage signal, such as spectral signals. This spectrum is very convenient electrochemical experiments. 
    CHI690 Series hardware using a high-speed processor, fast amplifiers, fast ADC and DAC. Chronocoulometry plus analog integrator. A 16 high-resolution stable current bias circuit to achieve a current-zero output, can also be used to improve the measurement of AC current dynamic range. High-resolution ADC has a better signal to noise ratio, but also gives a greater dynamic range of sensitivity settings. 
    CHI690 instruments internal control procedures using a FLASH memory. Instrument software updates no longer need to post and replace EPROM, which can be transmitted through the network and through the program command is written. This allows software updates faster and easier. 
    CHI690 also allows upgrades for bipotentiostat. The new design of the second channel by adding a potential control, the current-voltage conversion gain, and a multi-stage low-pass filter circuit board, has become CHI790 a bipotentiostat. 
    CHI690 instrument incorporates almost all of the commonly used electrochemical measurement techniques, the current measurement range to further enhance Germany. 

    Hardware parameter index 
    1 potentiostat; 
    2, constant current device (Model690); 
    3, the potential range: ± 10V; 
    4, the current range: ± 400 mA; 
    5, the maximum input voltage: ± 15V; 
    6, power amplifier module :( optional); 
    7, the maximum output voltage:> ± 30 V; (optional) 
    8, the maximum output current:> ± 2A; (optional) 
        Tank pressure can be extended to 120V, (optional) 
        AC impedance frequency range of DC-1MHz. (Optional) 
        Can be equipped with high input impedance, high current (30A / 100A) (optional) 
    9, the rise time: <250ns (no load); 
    10, the switching rate: 15V / μS (no load); 
    11, the positive feedback range: 2000MΩ to 2Ω (depending on the current amplitude); 
    12, current interruption digital voltage error correction: 16 bit DAC; 
    13, the potential control accuracy: <± 1 mV; 
    14, the potential to control the noise: <0.01 mV; 
    15, the potential rise time: <1 μs; 
    16, the tank pressure: ± 12 V; 
    19, Sensitivity: 110-12 ~ 0.1A / V total of 12 ranges; 
    20, the input bias current: <50 pA; 
    21, the current measurement resolution: 0.00015% range; 
    Minimum potential increment 22, CVs: 0.1 mV; 
    23, the potential update rate: 10M Hz; 
    24, fast data acquisition: dual-channel synchronous 16 resolution, 1MHz; 
    25, automatic and manual iR drop compensation; 
    26, CV and LSV scan speed: 0.000001 ~ 5000 V / s; 
    27, when the potential of the scanning potential increment: 0.1 mV, 1000 V / s; 
    28, CA and CC Pulse Width: 0.0001 ~ 1000 sec; 
    29, CA and CC step Views: 320; 
    30, DPV and NPV Pulse Width: 0.0001 ~ 10 sec; 
    31, SWV Frequency: 1 ~ 100k Hz; 
    32, ACV Frequency: 0.1 ~ 10k Hz; 
    33, SHACV Frequency: 0. ~ 5k Hz; 
    34, IMP frequency: 0.00001 ~ 1M Hz; 
    35, the maximum data length: 256000 points ~ 4,096,000 points selectable; 
    36, the potential increments only 0.1mV, when the scanning speed of 5000V / s, the potential increments 1mV; 
    37, can be expanded to ten channels (can also do impedance), you can expand the scanning electrochemical microscopy;
     
    脚注信息
    Copyright Copyright (C) 2009-2014 Beijing Ocean Foundation 
    Technical Support: Beijing website construction company

     

    Consulting

    Consulting