NEWPORT 840-C CALIBRATION and NEWPORT 840-C REPAIR
 
A calibration by Custom-Cal is performed by engineers with extensive OEM experience. We have the expertise and the necessary standards to perform the NEWPORT 840-C Calibration, onsite calibration may be available. We specialize in quick turnaround times and we can handle expedited deliveries upon request.

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   NEWPORT 840-C (840C)   Description / Specification:    
NEWPORT 840-C Handheld Optical Power Meter

The Newport 840-C HandHeld Power Meter is a powerful handheld dual-microprocessor based optical power measuring instrument. It makes sensitive DC or AC Peak-to-Peak optical power measurements with the convenience of full spectrum sensor calibration, quick sensor change, and a host of user-friendly features. The Model 840-C operates with Newport’s line of optical detectors through the use of an in-line calibration module. This Cal Module supplies calibration and detector information while still allowing the detector to be detached and used with other equipment in the lab. For use in fiber optic applications, a combined detectorcalibration module provides connectorized input at the meter (Model 818-F Series modules). A backlit 4-digit liquid crystal display (LCD) permits easy reading in darkened areas. An audio indicator allows the user to maximize a signal without having to look at the display. The analog output allows other instrumentation to monitor the Model 840-C power readings by providing a voltage output proportional to detector current. The Model 840-C’s ultra low noise, thermally stable, trans-impedance input amplifier optimizes the detector sensitivity and linearity. Specifications Input Current To Power Conversion; Displayed Power Reading: Input Current (A) ÷ Detector Responsivity (A/W) P=I/R(l). Input Voltage Burden: 5µV at zero current input, 10µV max. at full range, except 100µV max on 5mA range. Input Noise: The noise performance of the meter is ±1 A-D count or better when in either the linear or peak-to-peak mode, regardless of the sensor capacitance, internal resistance or feedback ranging resistor. Input Voltage Drift: ±0.6mV/°C; ±1 mV/Mo. Source Resistance: >30 k-ohm. Source Capacitance: <14 nF (includes input cable). Setting Time: 2 seconds to within 1 digit of final reading (fast mode). Reading Rate: 2.5 readings per second typical.



 

Standard Calibration $220.00 *
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*This is a Web introductory price for one calibration of the NEWPORT 840-C. Price does not in most cases include measurement performance data. Pricing does include NIST traceable calibration and issue of a calibration certificate and calibration label. Pricing may vary slightly due to volume and location of laboratory supporting calibration. Volume pricing may apply. On-site fees may apply depending on logistics, location and volume of work to be completed during the visit.


Related Optical Terms and Definitions. For a complete list go to our  Terms and Definitions Page.

Coherence Length
Average distance over which superimposed waves lose their phase relationships

Linewidth
Linewidth is the width of a spectral line in terms of wavelength, wave number and frequency.

Power Flatness Versus Wavelength
When changing the wavelength at constant power setting and recording the differences between actual and displayed power levels, the power flatness is ± half the span (in dB) between the maximum and the minimum of the measured power levels.

Spectral Width
Spectral Width is the wavelength interval over which the magnitude of all spectral components is equal to or greater than a specified fraction of the magnitude of the component having the maximum value. In optical communications applications, the usual method of specifying spectral width is the full width at half maximum. This is the same convention used in bandwidth, defined as the frequency range where power drops by less than half (at most -3 dB).

Telecom Bands
Optical fiber communications typically operate in a wavelength region corresponding to one of the following Bands. O Band (original): 1260–1360 nm. E Band (extended): 1360–1460 nm. S Band (short wavelengths): 1460–1530 nm. C Band (conventional): 1530–1565 nm. L Band (long wavelengths): 1565–1625 nm. U Band (ultralong wavelengths): 1625–1675 nm


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