User manual

1 Introduction

1.1 General

Monitor UPC-900 is a high precision on-line monitor for the

combined measurement of UV absorption, pH and conductivity in

liquid chromatography. The UPC-900 features:

• Fixed wavelengths of 254, 280 nm (Hg lamp), or 214 nm (Zn

lamp).

• Other wavelengths of 313, 365, 405, 436 and 546 nm through

filter change.

• Two alternative flow cells with pathlengths of 2 mm and 5 mm.

• Fast response

• High accuracy and reproducibility

• Flow cells with low dead volume

• Accurate and reliable monitoring through self-test and

self-calibration

• Flow cells can be connected close together, minimising band

broadening and time delay between detectors.

The monitor and the flow cells are separate units. All flow cells are

connected to the rear of Monitor UPC-900.

Monitor UPC-900

User Manual 18-1125-55 Edition AE

Introduction 1