The Model 1200B series is a computerized hand-held potentiostat/bipotentiostat. The instrument consists of a digital function generator, a data acquisition system, and a potentiostat/bipotentiostat. The potential range is ± 2.4 V. The current range is ± 2 mA. This series is capable of measuring current down to 100 pA. The steady state current of a 10 μm disk electrode can be readily measured. The size of the instrument is 7” (L) x 4.5” (W) x 1” (H). The instrument is powered by the USB port of a PC computer, without need of an external wall transformer or batteries. It is therefore more compact and convenient. The instrument can be used for electroanalysis and sensor studies. Due to its small size, light weight, and low cost, it is particularly useful for field applications and teaching laboratories.
The model 1200B series allows ±7.5 V compliance voltage, which ensures the working potential range ±2.4 V for most of the electrochemical systems. It also uses dual 16-bit DAC and 16-bit ADC for high resolution and accuracy.
The instrument provides many powerful functions, such as file handling, experimental control, graphics, data analysis, and digital simulation. Some of the unique features include macro command, working electrode conditioning, color, legend and font selection, data interpolation, visual baseline correction, data point removal, visual data point modification, signal averaging, Fourier spectrum, and equations relating to electrochemical techniques.
The CHI1200B series provides various instrument models to meet different applications and budget. The series is available in potentiostat (CHI1200B, 1210B, 1220B, 1232B, and 1240B) and bipotentiostat versions (CHI1202B, 1212B, 1222B, 1232B and 1242B).