Viavi Solutions

MicroNIR Pro


The MicroNIR Pro 1700 ES is a lightweight and costeffective near infrared (NIR) spectrometer that combines Viavi’s high-precision optical coating technology with innovation in optical system design and miniaturization.

Integrating Viavi linear variable filter (LVF) technology as the dispersing element, the spectrometer contains the light source, collection optics, electronics, and LVF in a housing that is <50 mm in diameter, <45 mm tall, and only 64 g light. The spectrometer is USBpowered and can be used in diffuse reflection, transmission, or transflection modes.

A MicroNIR Pro package includes a number of accessories that either enhance ease-of-use or enable measuring with different configurations that best fit specific applications.

Standard Accessories
- Vial holder with 100 5 ml glass vials
- Standard collar for normal operation
- Windowed collar for powder and soft material measurement and easy cleaning
- 99% spectralon references for vial measurement and point-and-shoot operation
- Bracket with ¼-20 thread for ease of mounting on standard optical post or mount
- Softshell case for shipping and transportation

Transmission fixture for liquid sample measurement

- Pharmaceutical
- Food, feed, and agriculture
- Industrial processing

The MicroNIR Pro ES 1700 includes data acquisition, method development, user management, and real-time prediction software. Within the model development software, a developer can perform spectral data pre-treatments with a full suite of industry-standard tools such as smoothing, derivatives, and baseline corrections.

Instrument performance qualification per USP 1119 test criteria and tools enabling 21 CFR part 11 are available. Embedded calibration development software powered by CAMO Software’s The Unscrambler® X provides regression and classification algorithms and a complete set of chemometric tools for calibration model development and data investigation.

The MicroNIR Pro Lite version does not include the embedded calibration development software, but it is compatible with CAMO Software’s Unscrambler X (version 10 or higher).


  • Covers the first and second overtone spectral region: 950 – 1650 nm
  • Enhanced electronic and mechanical design for better thermal control and system stability
  • Real-time predictions and method management
  • Powerful calibration model development tool


Illumination source
Two integrated vacuum tungsten lamps
Bulb life
> 40,000 hr
Sample working distance
0 – 15 mm from window, 3 mm optimal
Dispersing element
Linear variable filter
128 pixel InGaAs photodiode array
Pixel size/pitch
30 μm x 250 μm/50 μm
Wavelength range
950 – 1650 nm (10,526 – 6060 cm-1)
Pixel-to-pixel interval
6.2 nm for 950 – 1650 nm
Spectral bandwidth (FWHM)
< 1.25% of center wavelength (1% typical) (for example, @1000 nm, resolution is < 12.5 nm)
Analog-to-digital convertor
16 bit
Dynamic range (Max)
Measurement time (typical)
0.25 – 0.5 sec
Signal-to-noise ratio (typical)
23,000 (average of 100 scans)
Integration time
10 ms typical, minimum 10 μsec
USB 2.0
64 g (2.3 oz)
45 x 50 mm (1.77 x 1.97 in)
USB powered (<500 mA @5 V)
Data format
Unsb, CSV, and SPC output
Operating system
Windows 8.1, 8, and 7
Operating temperature
−20 – 50°C (noncondensing)
Storage temperature
−40 – 70°C (noncondensing)
CE mark
Package drop test