AW Gear Meters Quad-80 - Manual (Page 2)

AW Company 8809 Industrial Drive, Franksville, WI 53126 þ web: www.awcompany.com
( Tel: 262-884-9800 7 Fax: 262-884-9810 š Email: [email protected]
REV. 03/03 QUAD-80.DOC
QUAD-80 MAINTENANCE GUIDE
Checking or replacing the Quad-80 sensor is accomplished by the following steps:
Removing Quad-80 sensor:
Loosen the 3 hex bolts (2) using a 9/64” hex key.
Carefully lift the sensor housing (1) to expose the two
pairs of embedded sensors (3). If the ground wire (5) is
attached to the housing, loosen the screw (6) using a
3/32” hex key and remove ground wire from under the
screw. To remove embedded sensor elements,
remove the screws (4) holding them in place using a
3/32” hex key. The sensors and ground wire may now
be carefully removed from the meter body.
Testing Quad-80 sensor:
With embedded sensor elements (3) out of flowmeter
housing, connect cable to sensor connector (8). Set
jumper J4 on circuit board to A position for 4x output
setting. Apply 12-27 vdc power to sensor and while
looking at signal 1 output note that output changes
while a screw driver or other ferrous object is passed in
front of each of the 4 sensor elements, one at a time. If
the output does not change when screw driver is
passed in front of a sensor element, that particular
element is bad and the sensor needs to be replaced.
Installing Quad-80 sensor:
Place O-ring (7) in the O-ring groove. Insert embedded
sensor elements (3) into the sensor holes. Replace
fastening screws (4) and tighten securely. Fasten
ground wire (5) under screw (6) and tighten securely.
NOTE: If the ground wire is not going to be used,
make sure to tape the spade connector so it will not
short against circuit board and also make sure to
securely fasten the screw (6) so it will not come loose.
Finally, with ground wire and embedded sensor
elements fastened, double check that O-ring is
completely in O-ring groove and fasten the 3 socket
cap screws (2) to secure sensor housing cover (1) onto
flowmeter.