Mass Flow Control Accessories: MFC™
Electronic control of split and desorb flows is offered by 1 or 2 optional mass flow controllers (MFC) which are integrated into UNITY 2 as shown
Mass Flow Control accessories provide versatile electronic flow control of both split and desorption flows, featuring flexible split flow rate selection combined with precise control at low flows.
The UNITY 2 MFC modules also facilitate flow rate recall during an automated sequence with multiple TD methods.
Standard UNITY 2 systems feature the full range of split options (splitless, single split and double split), but with manually controlled flow rates.

Two MFC options are offered:
- 5 - 100 ml/min
- 10 – 200 m/min
For added versatility, series 2 U
LTRA
50:50 systems also offer the option of 1 or 2 integrated MFCs for special applications.
Relevant technical support publications from Markes International can be automatically downloaded from this web site (registration required). Examples include:
Thermal desorption systems available from Markes International includes:UNITY 2 platform thermal desorber for single tubes
ULTRA 2 multi-tube autosampler for UNITY TD
ULTRA 50:50 Automated thermal desorption with single autosampler re-collection
Auto-DAAMS automated thermal desorption for 4.5-inch DAAMS tubes
AutoSecure TD system - Fully automated TD system
Series 2
Air Server (3 and 8 channel) and
CIA 8 Systems for online automation
TT24-7 near real time monitoring