Doric 620 Series Laboratory Precision Digital Benchtop/Panel Indicators
The Series 600 of Digital Strain-gage Indicators is equally compatible with lower output bonded foil type transducers as with high output semiconductor transducers (up to 100mV). Each instrument allows selection from one of four full-scale voltage ranges to optimize sensitivity. The measuring technique used is the unique voltage-to-frequency conversion, dual slope method with a true, four-wire ratio measurement. This method assures accurate and stable readings even in noisy environments that can occur with fluctuating excitation power. Also, it allows for use of indicators with floating or grounded transducers. Three alphanumeric LEDs are supplied either for display of engineering unit tables (e.g., PSI, KG, LBS) or as "0" for active display of dead zeros. Digital scaling is standard. Drift-free scaling is set to precise engineering units and decimal location via the instrument's simple, front panel keyboard entry.