MANU ELECTRONICS ManuFlo ME697, Руководство пользователя

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ME697 (Eagle version)
Page 4
INSTALLATION GUIDE for ME697 Interface Card
with MES20 and other flowmeters
(1) Locate the most appropriate position to mount the MES20 flowmeter. Preferably:
•
your site’s flowmeters should be grouped together off the ground on a stand.
•
protect the flowmeters from the elements by using a cover, which should be lightweight with handles for easy access
by service personel.
•
a vibration free area is recommended, as the MES20 is sensitive to high vibrations which can cause some stray
pulses (see the “Installation” section in the MES product brochure).
(2) Establish the outlet point position in relation to the storage tank:
2a) If the outlet point is above the top of the storage tank (the most commonly used setup)
, then
the equipment you will need is at least: a pump, non-return valves or spring loaded check valves (12psi), flow
restriction gate or ball valve, a flowmeter with pulse output and, optionally:
•
a solenoid valve (air-assisted ball valve type) for instant shut off of flow, recommended to prevent the Venturi effect
when injecting into water lines, but may not be required if the installation has reasonable head height.
•
a 3-Way Valve to provide an easily accessible calibration point.
ADMIX
STORAGE
TANK
PUMP
Gate Valve
restricts flow
Filter
Non-Return
Valve
tank
Valve
Flowmeter
Non-Return Valve
optional 3-Way Valve
(calibration point)
optional Solenoid – to
prevent Venturi effect
if injecting into
water lines.
outlet line
above level of
Storage Tank
(most common)
ME697
Contactor
2b) If the outlet point is at the same level as the storage tank
, then the equipment you will need is at least: a pump,
a flow restriction gate or ball valve, a flowmeter with pulse output, and a solenod valve to stop free flow.
ADMIX
STORAGE
TANK
PUMP
Gate Valve
restricts flow
Filter
Non-Return
Valve
tank
Valve
Flowmeter
Non-Return
Valve
optional 3-Way Valve
(calibration point)
Solenoid
outlet line
at same level as
Storage Tank
ME697
Contactor
2c) If the outlet point is below the level of the storage tank
, then the equipment you will need is at least: a flow
control solenoid valve, a flow restriction gate or ball valve, and a flowmeter with pulse output.
ADMIX
STORAGE
TANK
Gate Valve
restricts flow
Filter
tank
Valve
Flowmeter
outlet line
below level of
Storage Tank
ME697
Solenoid
an optional pump
may be used to
speed up flowrate
PUMP