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Brooks, 4800 series – Brooks Instrument 4800 Series User Manual

Page 18

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2-6

Brooks

®

4800 Series

Section 2 Installation

Installation and Operation Manual

X-TMF-4800-MFC-eng

Part Number: 541B072AAG

September, 2013

h. Check the analog output signal. The output signal should match the

setpoint signal in accordance with the accuracy specifications provided
in Section 1 of this document.

i. If flow output signal does not match the setpoint, and pressure settings

are correct, this could indicate a problem in the MFC. A secondary issue
could be the gas type. When checking with a surrogate gas, ensure that
there is enough pressure to the MFC in order to flow the correct amount
of the surrogate gas.