PART FOUR - SERVICE AND MAINTENANCE
SECTION 1 - GENERAL INFORMATION
Rev. 1-201
Model F53 Flow Monitor/Totalizer (universal-mount 1/2 DIN)
91
P A R T F O U R - S E R V I C E A N D M A I N T E N A N C E
S
ECTION
1
1.1 Inspecting Sensor
Cables
1.2 Replacing Fuse(s)
1.3 Replacing Relays
If a measurement problem exists and you suspect the sen-
sor cables, inspect them for physical damage. If an
interconnect cable is used, check the junction box, then dis-
connect the cable at both ends (junction box and analyzer)
and, using an ohmmeter, check its wires for continuity and
internal shorts.
The analyzer is equipped with two board-mounted fuses
(type T slow-blow; 5 mm x 20 mm size). Fuse values are
shown next to each fuse (Figure 2-3). The fuses protect the
115 and 230 volt line power circuits.
WARNING:
DISCONNECT LINE POWER TO AVOID THE
POSSIBILITY OF ELECTRICAL SHOCK.
1.
After disconnecting line power, open the analyzer door
and locate the fuses (shown in Figure 2-3).
2.
Remove the blown fuse and replace it with a GLI fuse
or an equivalent. Refer to PART FIVE -- Spare Parts --
for GLI fuse kit part number.
3.
Reconnect line power and close the analyzer door.
The analyzer relays are soldered into a complex, multi-
layered circuit board. To avoid the possibility of damaging
this board while attempting to replace a relay:
•
Simply return the complete analyzer to the GLI Cus-
tomer Service Dept. or your local factory-authorized
service organization for relay replacement.
-- or --
•
Replace the complete scaling board assembly contain-
ing the relays. Refer to Part Five -- Spare Parts -- for the
GLI scaling board assembly part number.
GENERAL INFORMATION
