MODEL SOLU COMP II
SECTION 1.0
DESCRIPTION AND SPECIFICATIONS
4
When used with Model Series 200 Toroidal
Conductivity Sensors, display choices are conductivi-
ty, resistivity, and percent concentration. The percent
concentration selection includes the choice of four
common solutions (0-12% NaOH, 0-15% HCl, and 0-
25% or 96-100% H
2
SO
4
). The conductivity-concentra-
tion algorithms for these solutions are fully tempera-
ture compensated. For other solutions, a simple-to-
use menu allows the customer to enter his own data.
The analyzer accepts as many as five (5) data points
and fits either a linear (two [2] points) or a quadratic
function (three [3] or more points) to the data.
Reference temperature and linear temperature slope
may also be adjusted for optimum results.
PERFORMANCE SPECIFICATIONS -
Measurement Range: see table below
Accuracy: ± 1% of reading, ± 5
µ
S/cm
Repeatability: ± 0.25% of reading
Stability: ± 0.25% of output range/month,
noncumulative
Ambient Temperature Coefficient: ± 0.01% of
reading/°C
Temperature Compensation: -15 to 200°C (5 to
392°F) automatic or manual. Automatic requires
a Pt100/1000 RTD
Temperature correction: Linear temperature
coefficient (0.0 to 5.00%/°C) neutral salt (dilute
sodium chloride) or none
RECOMMENDED SENSORS:
Model 222 Flow-through conductivity sensor
Model 225 Clean-in-place conductivity sensor
Model 226 Large bore conductivity sensor
Model 228 Toroidal conductivity sensor
TOROIDAL CONDUCTIVITY (Codes -21 and/or -31)
FULL SCALE MICROSIEMENS/cm
INDUCTIVE SENSORS
Conductivity Sensor
Model Number
226
228
225
222 (1in.)
222 (2 in.)
Cell Constant*
1.0
3.0
3.0
6.0
4.0
Minimum Range
50
250
250
500
500
Maximum Range
1,000,000
2,000,000
2,000,000
2,000,000
2,000,000
* Typical
S1 1027mS/cm
100*C
S2 847.1µS/cm
100*C
