The PM Series is a popular, general purpose 5VDC powered instrument. More than 60,000 units have been installed throughout the world in thousands of different applications, attesting to the meter’s utility and reliability. A single CMOS/LSI dual slope autozeroing analog to digital converter is used and the unit measures true differential for single-ended DC voltages over five user programmable ranges from ±199.9mV to ±1200V
full scale. Provision has been made for many user selectable operating modes, including a current meter, ratiometric ohmmeter, and a temperature meter.
An on board DC to DC converter provides up to 10mA of auxiliary power for external user circuitry. The differential input capability of the PM Series is particularly useful for making accurate measurements of very small signals in the presence of much larger common mode signals. The PM Series is ideal for measuring various balanced transducers and bridge inputs and long term drift of the excitation voltage can be compensated for by using the external reference differential ratiometric mode of operation.
