ENDRESS+HAUSER  CVM40-AA1A1A1A

Graphic transmitter for inline photometers and data manager

Measure, analyze, record, visualize, and communicate

The graphic transmitter for inline photometers & data manager Memograph CVM40 provides information on all photometric process variables. It can operate up to two photometric sensors for UV absorption, color, NIR absorption, turbidity and cell growth. Values are correctly measured, analyzed, and recorded. The measurement data are stored in the 256 MB internal memory & on an SD card or USB stick. CVM40 boasts a modular design, intuitive operation & a comprehensive security concept.

The solution for all your tasks. For example, for:

• Life science and pharmaceutical industry
• Food and beverage industry
• Process measuring technology
• Environmental applications

• UL-listed for Canada and USA, 4 approval
• Memograph CVM40 provides precise measurement values under any condition.
• Up to 4 optical channels for operation of max. 2 photometric sensors, 2 universal analog channels support multiparameter combined measuring or recording purposes.
• Menu-guided calibration of photometric sensors.
• Maintenance and service cycle reminders will pop up and be logged in device history.
• Security package with person-specific access authorization and electronic signature (FDA 21 CFR Part 11).
• Integrated Web server, fieldbus (PROFIBUS, Modbus), common standard protocols and interfaces such as USB, TCP/IP, OPC & Ethernet are supported.

The measuring principle is based on the Lambert-Beer law. There is a linear dependency between the light absorption and the concentration of the absorbing substance. A light source emits radiation through the medium and the transmitted radiation is measured on the detector side. After passing through a filter for wavelength selection, the light intensity is determined by a photodiode and converted into a photo current. The final conversion into transmission (%) or absorption (AU, OD) units is done by the related transmitter.

A complete measuring system comprises:

• Memograph CVM40
• An optical sensor, e.g. OUSAF44
• Flow assembly, e.g. OUA260
• Cable set, e.g. OUK40