| Product Description |
| The Model 840-C hand-held optical power meter is fully compatible with all of Newport’s 818 Series low-power silicon, germanium and indium gallium arsenide detectors. Detectors connect to the power meter through an in-line calibration module that is dedicated to each detector. These detachable modules provide the Model 840-C with calibration and operating information specific to the assigned detector. Various detector accessories allow for free-space, as well as for fiber coupled power measurements.
DC and AC peak-to-peak power measurements can be displayed in units of W and dBm on the instrument’s 4 digit, backlit LCD. The meter’s power sensitivity ranges from 2 mW down to 100 pW (-70 to +3 dBm). When using Newport’s detectors with an OD-3 calibrated optical attenuator, the upper measurement limit can be extended to 2 W (+33 dBm).
Excellent signal-to-noise performance and reliable day-to-day operation of the instrument even in harsh measurement environments are assured by the instrument’s thermally stable electronic design and full EMI/RFI shielding. |
