Custom-Cal has a high success rate in the repair of the ANDO AQ2140. A calibration by Custom-Cal is performed by engineers with extensive OEM experience. We have the expertise and the necessary standards to perform the ANDO AQ2140 Calibration, onsite calibration may be available. We specialize in quick turnaround times and we can handle expedited deliveries upon request.

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   ANDO AQ2140 (AQ-2140)   Description / Specification:    
ANDO AQ2140 Optical Multimeter Mainframe

The Ando AQ2140 optical multimeter was developed to serve as a basic optical measurement instrument in a wide range of applications from R&D to optical fiber and component manufacture, and construction and maintenance. This single unit provides high precision, powerful functions and high-speed measurement, making it possible to use it as an optical power meter, a stabilized light source, a loss test set or a return loss measurement instrument. Sensor Features. Sensor unit; Measurement accuracy of ±2.5% is guaranteed under the reference conditions. Covers a wide waveband from 400 to 1870nm, and provides a dynamic range of 100dB or more for loss measurement. (It depends on sensors.) The AQ2733 and AQ2734 sensor units achieve a low polarization dependence of 0.02 dB p-p or less. The AQ2734 sensor unit uses a photodiode with flat wavelength sensitivity from 1300 to 1800nm, for accurate measurement at 1650nm as well. Light source unit; The LD unit has an internal isolator that maintain optical output level stability at ±0.003 dB. Optical power can be decreased in 0.1 dB steps to 6.0dB. A wide variety of optical connectors can be used just be exchanging the universal and connector adapters (AQ4214 excluded). Return loss unit; Because internal self-reflectance data is stored by individual units in memory to correct operations, even high-reflectance attenuation can be measured with excellent accuracy. The internal high-stability sensor can be used together with the LD unit to provide stable reflectance attenuation measurement. Mounted with a return loss unit and LD unit, the display will show reflectance attenuation after measurement of reference reflectance by merely disconnecting the measured fiber cable. Mainframe. Unit display Absolule, dBm, mW, uW, nW, pW, Relative: dB, Comparative: None. Range: Automatic or fixed (up/down). Measurement mode: Seleclable, CW light/chopped light (270Hz, 1kHz, 2kHz). Measurement interval: Seleclable 10(20)/50/100 ms. Display resolution Selectable (0.1, 0.01, 0.001).


Functional Test $90.00 *
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*This is a Web introductory price for one calibration of the ANDO AQ2140. 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.

Bandwidth is the difference between the upper and lower frequencies in a contiguous set of frequencies within which a fiber optic component, link or network will operate.

Extinction Ratio (ER)
Extinction Ratio is the ratio of two optical power levels, of a digital signal generated by an optical source, (example a laser diode), where P1 is the optical power level generated when the light source is "on," and P0 is the power level generated when the light source is "off." The extinction ratio may be expressed as a fraction, in dB, or as a percentage.

Optical Signal-to-noise Ratio (OSNR)
Optical Signal-to-noise ratio is the ratio between the signal power and the noise power in a given bandwidth. Most commonly a reference bandwidth of 0.1 nm is used. This bandwidth is independent from the modulation format, the frequency and the receiver. For instance a OSNR of 20dB/0.1nm could be given, even the signal of 40 GBit DPSK would not fit in this bandwidth. OSNR is measured with a Optical Spectrum Analyzer. It is generally measured at the wavelength of interest.

Repeatability is the variation in a number of repeated measured quantities when measurement conditions are changed and restored. The value corresponds to half the spread between the minimum and maximum value measured.

Wavelength Repeatability
Wavelength Repeatability is the random uncertainty in reproducing a wavelength after detuning and re-setting the wavelength. The wavelength repeatability is ± half the span between the maximum and the minimum value of all actual values of these wavelengths. Example test condition: uninterrupted TLS output power, constant power level, temperature within operating temperature range, coherence control off, short time span. Note: NOTE The long-term wavelength repeatability can be obtained by taken the wavelength repeatability and wavelength stability into account.

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