CALIBRATION: MEASURING EQUIPMENT


Combo kit packs a punch


Andy Pye attended the London launch of the Yokogawa DL350 ScopeCorder - a compact, portable combination measuring instrument for capturing, displaying, recording and analysing a wide variety of electrical and physical parameters in industry sectors including automotive, electronics, energy, transport and mechatronics


L


ike othermodels in Yokogawa’s ScopeCorder family, the DL350 combines features of a general- purpose oscilloscope with those of a high-performance data


acquisition recorder in a single, portable instrument. Unlike alternative portable measuring instruments, such as oscilloscopes and combined oscilloscope/ multimeters, it adds high levels of precision and accuracy to fieldmeasurements, isolated inputs formeasurements at high voltage levels, and long-memory capabilities that allow long-termrecording formany hours or even days. Another key and unusual feature of the


DL350 ScopeCorder is its plug-in modularity, which allows it to be configured to suit a variety of user applications, whether carrying out straightforward high-precision voltage measurements or handling a blend of


42 /// Environmental Engineering /// August 2017


signals coming fromsuch things as current probes, temperature sensors, strain gauges, accelerometers and serial buses. This flexible input capability is achieved


by incorporating two slots which are populated with any of 18 different types of user-swappable inputmodules. This means, for example, that four isolated 16-bit voltage inputs can bemeasured at speeds of onemegasample per second (MS/s), alongside 16 temperatures, or two


separate CAN or LIN buses each containing 60 signals. Changing a singlemodule enables


measurement at 100MS/s with 12 bits and 1 kV of isolation.Meanwhile there are 16 logic inputs always available, with even more available by swapping a further module. Among othermodules are AC


measurements using an RMSmodule in real time and amathematics channel for


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