PART FOUR - SERVICE AND MAINTENACE
SECTION 1 - GENERAL INFORMATION
Model C53 Conductivity Analyzer (universal-mount 1/2 DIN)
Rev. 5-1000
92
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
Cable(s)
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, disconnect the cable at both
ends (sensor 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 to the left of the fuses (Figure 2-3 or 2-4). 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 or 2-4).
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
