Brooks Instrument MT3809G - Manual (Page 39)

Installation and Operation Manual
X-VA-MT3809G-MT3810G-eng
Part Number: 541B182AAG
September, 2013
Models MT3809G & MT3810G
3-1
Section 3 Operation
3-1 Pre-Start Check
After the flowmeter has been properly installed in the process, it is ready
for operation. When initiating flow, slowly open the valve to avoid a flow
surge. Bypass is a help in bringing the flow on smoothly. Avoid starting a
pump to supply the flowmeter without the use of a valve upstream of the
flowmeter.
At no flow condition the indicator pointer should align with the “R” mark on
the scale. If necessary, adjust the pointer as per directions in the
Maintenance Section 4.
3-2 Start-up and Operation of Flowmeter
a. Slowly initiate flow into the system. Open process valves slowly to avoid
flow surges.
b. Check for leaks around the meter inlet and outlet connections. If no
leaks are present, bring the system up to operating pressure.