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MODEL SOLU COMP II SECTION 1.0
DESCRIPTION AND SPECIFICATIONS
4
When used with Model Series 200 Toroidal
Conductivity Sensors, display choices are conductiv-
ity, resistivity, and percent concentration. The per-
cent concentration selection includes the choice of
four common solutions (0-12% NaOH, 0-15% HCl,
and 0-25% or 96-99.7% H
2
SO
4
). The conductivity-
concentration algorithms for these solutions are fully
temperature 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 and ± 0.01 mS/cm
Repeatability: ± 0.5% of reading and ± 0.005 mS/cm
Stability: ± 0.25% of reading and ± 0.005 mS/cm/month,
noncumulative
Ambient Temperature Effect: ± 0.05% 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
Model 242 Flow-through conductivity sensor
Model 247 Economy 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