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Wyatt Technology Model OptiLab WREX-09 Refractometer HPLC Refractive Index

AdID: 9600

Availability: In stock


Manufacturer Overview

The Optilab rEX measures the dRI between the current liquid sample stream and a liquid (usually clean solvent) previously stored as a reference. The dRI is measured at a fixed wavelength determined by a Light Emitting Diode (LED)/fiber light source. The light source consists of a high-powered LED coupled to a special optical fiber. This ìpigtailî configuration allows you to easily replace the light source. If you want to change the measurement wavelength, installing a ìpigtailî with a different wavelength accomplishes this. The dRI data can be read from the LCD display, the analog output channel, or digitally through the Ethernet port. Since the dRI of liquids depends critically on temperature, the instrument has a system that precisely regulates the temperature of both the flow cell and the optics. In addition to the dRI between two liquids, with the same liquid present in the sample and reference chambers, the Optilab rEX measures the aRI of that liquid. (Source: Optilab rEX User's Guide)

This used RI detector is in excellent cosmetic condition and was reviewed by New Life Scientific technicians. The Optilab model label was damaged in cleaning; the technicians tried to repaint a similar label and it bubbled slightly, leaving a superficial imperfection. This product will be sold for parts / in need of repairs.

Technical Review

The technicians noted that the instrument powered on and acquired an IP address. There were graphs and an accurate internal temperature readout produced. The membrane keypad functions and the menu tabs are easily navigable to meet the user's need. The Optilab was not connected to an HPLC system to take sample readings. The manufacturer has informed NLS that this product will be supported until October 2017 (10-year serviceable lifetime). Wyatt technicians reviewed this instrument in a customer's lab and were unable to get a reading from this instrument. This product will be sold for parts.

Digital Product Manual


Wyatt Technologies


Optilab Rex

Serial Number


Power Requirements

50-60 Hz

Date of Manufacturing

November 2007

Last Inspection

October 2012


Hardware Kit Case-900046
(2) Fuses
(2) SS Fitting Flat
(2) Ferrule
(1) 90 Deg. Fitting
(1) CAT5 E Patch Cable 7'
(2) 1/2x7/16" Wrenches
(1) 1/4x5/16" Wrench
(1) Driver

Our products have likely been decommissioned and decontaminated by the original owner. However, in order to maintain a high standard of safety, all of our products are professionally decontaminated with a water/bleach mixture, as well as other cleaning agents.

While New Life Scientific takes many steps to ensure that our instruments are in perfect working order we cannot ensure that all products are up to manufacturer specifications. We recommend every product undergo professional installation and calibration before use in research, production, and clinical applications. For this reason, we offer a 30-day warranty on all of our working products in the interest of maximum customer satisfaction.