Greyline Instruments AVMS 5.1, Руководство пользователя

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Page 20
Multi-Sensor Area Velocity Flow Meter
INSTALLATION - SENSOR LOCATION
1. Choose sensor mounting locations where silt or deposits are least likely to accumulate.
2. For best results the three AVMS submerged velocity sensors should be positioned to obtain average
velocity across the channel width.
3. Avoid vertical drops, obstructions or elbows immediately up and downstream from the sensor. Locate
the QZ02L sensor at least 10 times maximum Head (level) and 10 times the channel width from these
flow disturbances.
4. The QZ02L submerged level-velocity sensor requires a minimum water level of 1 in. (25.4 mm).
QZ02L VELOCITY-LEVEL SENSOR MOUNTING
Mount the three QZ02L sensors with
stainless steel brackets and hardware
supplied. Ensure that the one QZ02L
sensor that is monitoring level is parallel
to the water surface (check with a level).
Mount with the tapered end of the
sensors pointing upstream and the sensor
cable pointing downstream.
Mount QZ02L velocity sensors at or
near the bottom of the channel or pipe in
positions where they will be
continuously submerged. Position where
silt or solids will not build up on the
sensors.
Clip or tie wrap the sensor cables
securely to the pipe or channel wall.
FASTEN SENSOR
CABLE TO PIPE OR
CHANNEL WITH
METAL CLIPS OR
TIE WRAPS
SENSOR
END VIEW
MB-QZ
MOUNTING
BRACKET
0.2"
(5 mm)
TOP VIEW
FLOW
SIDE VIEW
FASTEN MOUNTING
BRACKET WITH A
SET SCREW
INSERT SENSOR INTO
MOUNTING BRACKET
QZ02L
VELOCITY/LEVEL SENSOR
FLOW
LEVEL
SENSOR