MODEL SOLU COMP II SECTION 1.0
DESCRIPTION AND SPECIFICATIONS
Measures conductivity in the range 0 to 20,000 µS/cm.
Display choices are conductivity, resistivity, and TDS
(total dissolved solids). Three temperature corrections
are available: high purity water (dilute sodium chlo-
ride), cation conductivity (dilute hydrochloric acid),
and adjustable linear temperature coefficient (0 to
5.00%/°C). Temperature correction can be disabled,
allowing the analyzer to display raw conductivity.
PERFORMANCE SPECIFICATIONS -
ANALYZER (CONDUCTIVITY INPUT)
Accuracy (Resistivity)**: 0.9% of reading
Accuracy (Temperature)**: ±0.1°C between 5°C and
100°C; ±1°C between 101°C and 200°C
Stability: 0.5% of reading/month
Ambient Temperature Effect: ±0.05% of reading/°C
Output Accuracy: ±0.1 mA
Temperature correction: High purity water (dilute
sodium chloride), cation conductivity (dilute
hydrochloric acid), linear temperature coefficient
(0.0 to 5.00%/°C), or none. High purity water and
cation conductivity temperature correction apply
between 0 and 100°C. Linear temperature coeffi-
cient can be applied between -5 and 200°C.
Measurement Range: 0.0 to 20,000 µS/cm, 0.05 to
20 MΩ-cm, or 0 to 10,000 ppm TDS
Temperature Range: -5°C to 200°C (23°F to 392°F)
1
whichever is greater
2
Accuracy values pertain to Endurance Model 400
Series conductivity sensors only
RECOMMENDED SENSORS FOR CON-
DUCTIVITY:
The Solu Comp II is intended for use with the
ENDURANCE Model 400 series conductivity sensor
(Pt 1000 RTD).
Model 400 Screw-in/Insertion
Model 400VP Screw-in/Insertion with 6.0 VP connector
Model 401 Screw-in/Insertion (except 401-15)
Model 402 Retractable
Model 402VP Retractable with 6.0 VP connector
Model 403 Sanitary Flanged
Model 403VP Sanitary Flanged with 6.0 VP connector
Model 404 Flow-Through
The analyzer can also be used with Rosemount
Analytical conductivity sensor Models 140, 141, 142, and
150 having a Pt 100 RTD.
Refer to the table to select the appropriate cell constant.
Ratio Conductivity (Codes -20-30):
The Dual Conductivity Solu Comp II can function as a
ratio analyzer or recovery device (% passage or %
rejection). Product sensor 2’s conductivity reading is
always displayed.
Ratio
%Pass
%Reject
CONTACTING CONDUCTIVITY (Codes -20 and/or -30)
Range Cell constant (/cm) Accuracy
1,2
0.055 - 9.99 µS/cm 0.01 0.9% of reading
or ±0.002 µS/cm
10 - 50 µS/cm 0.01 ±2% of reading
0.055 - 500 µS/cm 0.1 ±2% of reading
or ±0.1 µS/cm
0.055 - 5000 µS/cm 1.0 ±2% of reading
or ±1 µS/cm
0 - 5 mS/cm 1.0 ±2% of reading
or ±0.001 mS/cm
0 - 20 mS/cm 10 ±2% of reading
or ±0.01 mS/cm
Range,
µµ
S/cm Cell constant, /cm
0.0 to 50 0.01
5 to 500 0.1
50 to 5,000 1.0
500 to 20,000 10
12.34 µS/cm 40.3 C
7.34pH 25.3 C
Ratio .3325
S2 4.621 µS/cm
%Passage 12.1
S2 4.621 µS/cm
%Reject 87.9
S2 4.621 µS/cm
3
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