Unrestrained Storage and Connection — Data storage no longer be bound by transmission wire GW INSTEK rolls out the new generation Dual Measurement Multimeter - the GDM-834x series, which has two models -GDM-8341 and GDM 8342. Its exceptional features include 50,000 counts, VFD dual-display, 0.02% basic DC voltage accuracy and a USB protocol connector to provide users with measurement precision, lucid data observation, and the convenience to connect with the personal computer. The GDM-834x series not only supports the fundamental measurement items provided by general multimeters, but also equips with capacitance and temperature measurement functions. Furthermore, the GDM-834x series also provides many auxiliary functions to meet the measurement requirements for manufacturing process tests, educational experiments and testing facilities. With respect to storing and retrieving data, the GDM-834x series has two methods to offer: first, theUSB flash drive storage function -- operating alone without connecting with a computer; second,USB interface (virtual COM port)and optionalGPIB interface (must be installed in factory) for automatic measurement systemusers to conveniently save and retrieve data. // Convenient USB flash drive storage function The major distinction between GDM-8342 and products in the same category is that GDM-8342 provides USB flash drive storage function, which allows users to conveniently save data into a USB flash drive through a simple and proper setting. This unique function, different from other digital multimeters which must first save data into its own internal memory then transfer out the file, or connect multimeters with a computer to retrieve data, not only saves operational time but also cuts down the cost and time of developing programs. The USB flash drive storage function incorporates two modes — basic and advanced, which can be selected from the front panel. When the basic mode is on, data will be saved into an automatically established new folder (time of established file will be determined by system default) and the starting time of data logging will use a fixed time marker (00hr: 00min: 00sec). For advanced mode, users can designate a file path to save data or establish a new folder and the starting time of data logging is determined by users inputs (for instance: 23hr: 45min: 32sec). The number of data files can be saved in one second is determined by the speed of selected function. The USB storage function allows each flash drive to establish 100 folders (GW000 ~ GW099). Each folder has a capacity of saving 5,000,000 data files (which are divided into 100 sub-file names, therefore, each sub-file name can save 50,000 data files. Take folder GW000 as an example, internal file names are GW000_00 ~ GW00_99). The storage format is CSV, which can open files and conduct file analysis by existing tools. (such as Microsoft Excel)

50,000 counts, VFD display
Dual measurement/Dual display
Selectable measurement speeds, the maximum: 40 Readings/s for DCV
The basic precision of DC voltage: 0.02%
Auto/manual Ranging
True RMS (AC_AC+DC) measurements
11 different measurement functions
Max./Min., REL, MX+B, 1/X, Ref%, Compare, Hold, dB, dBm
Standard USB device interface to connect with a computer
Temperature measurement function (GDM-8342 only)
USB storage for Data collection (GDM-8342 only)
Optional GPIB (factory install for GDM-8342)

Opt.01 GPIB Interface

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