4800 Series Product Updates
March, 26 2008
We are pleased to announce several updates for the 4800 Series mass flow devices. The 4800 Series now has digital communications via RS-232, a downport connection option, and is fully RoHS compliant. Additionally, the 4800 Series recently won the 2008 Golden Gas Award for Mass Flow Measurement and Control from Gases & Instrumentation magazine.
RS-232 Digital Communication
This one-to-one communication protocol is already available on the current 15-pin D sub-connector today. RS-232 allows the customer to give a setpoint and receive the process value, select one of nine gases for the calibration curve, access the valve override function, and access the re-zero function. The RS-232 protocol language is defined in a separate manual on BrooksInstrument.com. This protocol is different from the S-protocol used on existing products. You can find this document within the Documentation section of BrooksInstrument.com, under OEM Products / Digital Protocols, file name "RS-232 for 4800 MFC".
Please note, there is no additional cost to the customer for this option and there is nothing to select when purchasing this unit as it comes along as a standard.
Downport Option
Optional downport connections are now available on the 4800 Series. In order to keep the advantage of the small footprint of the 4800 Series we selected a proprietary standard downport option. This option allows top mounting for ease of maintenance and installation. The downport option also offers additional space savings over traditional mountings because there is no point to point tubing necessary. This option will be very attractive for OEMs that place a premium on space and ease of maintenance. You can reference the dimensions of the 4800 Series with downport connections on the data sheet or on page 1-5 of the 4800 user manual.
RoHS Compliant
The first question you may be asking is, "What is RoHS?" The RoHS Directive stands for "the restriction of the use of certain hazardous substances in electrical and electronic equipment". This Directive bans the placing on the EU market of new electrical and electronic equipment containing more than agreed levels of lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyl (PBB) and polybrominated diphenyl ether (PBDE) flame retardants. For more information, please visit http://www.rohs.gov.uk/.
A minor internal design change was made to make the 4800 Series Brooks' first, fully RoHS compliant MFC. In Europe and Asia, customers continue to ask and require devices to be RoHS compliant. Brooks is currently updating other devices to be RoHS compliant in the near future. Also, please reference the letter outlining Brooks' position statement regarding the RoHS Directive on RepNET, located in the Document Library \ Customer Support \ Documents.
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