PART FOUR - SERVICE AND MAINTENANCE
SECTION 1 - GENERAL INFORMATION
Rev. 2-300
Accu4™ Low-range Turbidimeter System
85
1.4 Replacing Fuse(s)
1.5 Replacing Relays
1.6 Inspecting
Sensor Cable
The analyzer is equipped with two board-mounted fuses
(type T slow-blow; 5 mm x 20 mm size). Fuse values are
shown by the fuses (Figure 2-8 or 2-9). 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 2-8 or 2-9).
2.
Remove the blown fuse and replace it with a GLI fuse
or an equivalent (GLI fuse kit part number is
1000G3315-101).
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.
If a measurement problem exists and you suspect the sen-
sor cable, inspect it for physical damage. If an interconnect
cable is used, check the junction box, then disconnect the
cable at both ends (sensor and analyzer) and, using an
ohmmeter, check its wires for continuity and internal shorts.
