Brooks Instrument 1307 - Manual (Page 15)

3-1
Operation
Operation
3-1 Operating Instructions
After the flowmeter has been properly installed in the system, it is ready for
operation.
GLASS TUBE
EXPLOSION
HAZARD
WARNING
Plastic protective sleeve must remain over glass
tube.
Fasten meter windows securely.
Do not operate above pressure and temperature
limits.
Avoid pressure and flow surges.
Do not service or repair while pressurized.
Read and understand instruction manual.
Failure to comply could result in serious personal
injury or property damage.
Protective sleeve must remain over glass tube.
Fasten meter windows securely.
Failure to comply could result in serious personal
injury or property damage.
WARNING
GLASS TUBE EXPLOSION HAZARD
To initiate flow through a flowmeter using bypass piping, refer to Figure 3-1.
1. Close flowmeter isolation valves (A) and (B).
2. Fully open bypass valve (C) and slightly open control valve (D).
3. Initiate process flow. When flow has stabilized, fully open isolation valve
(B), then slowly open isolation valve (A) fully.
4. Close bypass valve (C).
5. Regulate process flow using control valve (D).
6. If meter is left in by pass configuration, open drain valve (E) to prevent
tube damage caused by thermal expansion of the process liquid.
Failure to drain the flowmeter when isolated in a bypass loop may
result in tube breakage caused by thermal expansion of the process
liquid.
CAUTION
Rate of flow is indicated by reading the increments inscribed on the
metering tube or direct etched scale parallel with the metering edge of the
float. For the correct reading edge of the float, refer to Figure 3-2.
Section
3