Brooks Instrument MT3809E - Manual (Page 41)

3-1
Section 3 Operation
Models MT 3809 and 3819
Installation and Operation Manual
X-VA-MT3809-3819-eng
Part Number: 541B049AHG
September, 2008
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
Do not operate this instrument in excess of the specifications
listed in Section 1-3. Failure to heed this warning can result in
serious personal injury and/or damage to the equipment.
WARNING
At no flow condition the indicator pointer should align with the “0” mark on
the scale. If necessary, adjust the pointer as per directions in the
Maintenance Section 4-3.
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.