PART FOUR - SERVICE AND MAINTENANCE
SECTION 3 - TROUBLESHOOTING
Model C53 Conductivity Analyzer (universal-mount 1/2 DIN)
Rev. 5-1000
96
2.
Depending on the configured sensor cell constant,
measuring units, and range, use the listed resistance in
Table F (1% tolerance resistor or decade box) and con-
nect it between Terminals 21 (black) and 22 (red) on
the TB1 SENSOR block.
Table F -- FULL-SCALE EQUIVALENT TEST RESISTANCE VALUES
Configured
Configured “Nominal” Cell Constant
Display Format
0.05 (see Note 1)
0.5
1
5
10
For Conductivity Measurement
0-2.000 µS/cm
25 K
Ω
not applicable
not applicable
not applicable
not applicable
0-20.00 µS/cm
2.5 K
Ω
25 K
Ω
not applicable
not applicable
not applicable
0-200.0 µS/cm
not applicable
2.5 K
Ω
5 K
Ω
not applicable
not applicable
0-2000 µS/cm
not applicable
not applicable
500 K
Ω
2.5 K
Ω
5 K
Ω
0-2.000 mS/cm
not applicable
not applicable
not applicable
2.5 K
Ω
5 K
Ω
0-20.00 mS/cm
not applicable
not applicable
not applicable
not applicable
500
Ω
0-200.0 mS/cm
not applicable
not applicable
not applicable
not applicable
50
Ω
For Resistivity Measurement
0-19.99 M
Ω
•
cm
1 M
Ω
not applicable
not applicable
not applicable
not applicable
0-999.9 K
Ω
•
cm
50 K
Ω
not applicable
not applicable
not applicable
not applicable
For TDS Measurement
0-9999 ppm
3.2
Ω
32
Ω
64
Ω
320
Ω
640
Ω
0-9999 ppb
3.2 K
Ω
32 K
Ω
64 K
Ω
320 K
Ω
640 K
Ω
NOTE 1: When measuring ultrapure water as conductivity (less than 1.00 microSiemens/cm), an 877 K
Ω
resistance will display
0.057 µS/cm. When measuring ultrapure water as resistivity, a 910 K
Ω
resistance will display 18.2 M
Ω
•
cm.
Verifying Interconnect
Cable Integrity
3.
Reconnect line power to the analyzer.
WARNING:
LINE POWER IS PRESENT. BE CAREFUL TO
AVOID ELECTRICAL SHOCK.
4. Verify that the analyzer conductivity reading is full-scale
for the applicable range. Also, verify that the analyzer
temperature reading is 0
°
C.
If these readings are achieved, the analyzer is operating
properly, but the interconnect cable (if used) may be faulty.
WARNING:
DISCONNECT LINE POWER TO AVOID THE
POSSIBILITY OF ELECTRICAL SHOCK.