GOSSEN’s METRAHit 30M digital multimeter has a 6 1/2 digit LCD readout, 128 Kbyte memory, and serial duplex infrared data interface. It is available from Power Parameters .
The multimeter is suited to development, calibration and sophisticated service requirements. It can also be used in data logger mode.
The METRAHit 30M measures ac and dc parameters as well as ac+dc signals as TRMS quantities with crest factors as high as 10 to a frequency of up to 100 kHz. It measures voltage with a maximum resolution of 100nV and a top measuring range of 600V. It also measures current with a maximum resolution of 100pA and a top measuring range of 100mA. It measures resistance with a maximum resolution of 0.1Ω and a top measuring range of 10MΩ and frequency with a maximum resolution of 1ppm and a top measuring range of 100kHz. Finally it measures temperature via Pt100 and Pt1000 two and four-wire RTDs. It can measure a temperature range from -200°C to 850°C.
A digital averaging filter can be used to smooth noisy measurements. Minimum and maximum values are automatically updated in memory as data acquisition takes place on an adjustable data transfer rate between 0.01 and 60 seconds.