Key Features are a pressure rating of 1000bar (15000psi) and a short response time of 30ms which means that the high-end SLG64-0075 device is especially suited for monitoring dynamic flow rates in cutting-edge chromatography systems. This flow meter (US Pat. 6813944B2), which is based on CMOSens technology is designed to accurately measure flow rates up to 5 microlitres per minute and features an additional high flow mode for up to 20 microlitres per minute.
A highly sensitive CMOSens microchip is mounted on the outside of an internal, straight fused silica capillary (ID 75 um) and detects the flow while remaining totally isolated from the media. By using this technology, enhanced repeatability for analysis – the most important criterion in chromatography – is ensured. The fully digital, calibrated liquid flow meter operates with repeatability that is better than 0.6% of the measured value. Moreover, the sensor offers resolutions down to 0.5nl/min and better. The SLG64-0075 is equipped with stainless steel fittings for 1/16” capillaries and an I2C interface for digital communication. An RS485 bus interface is offered as an alternative option.
Sensirion’s SLG64-0075 is available in the UK through Advanced Power Components.