Emerson Rosemount 56, Instruction Manual

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Description and Specifications 7
Instruction Manual Section 1: Description and Specifications
LIQ-MAN-56 April 2017
Model 1 µ S/cm 10 µ S/cm 100 µ S/cm 1000 µ S/cm 10 mS/cm 100 mS/cm 1000 mS/cm 2000 mS/cm
5 µ S/cm to 500 mS/cm
15
µ
S/cm to 1500 mS/cm
500 mS/cm to 2000 mS/cm
500 µ S/cm to 2000 mS/cm
100 µ S/cm to 2000 mS/cm
1500 mS/cm to 2000 mS/cm
226
242
222
(1in & 2in)
225 & 228
1.5 Toroidal Conductivity (Codes -21 and -31)
Measures conductivity in the range of 1 (one) µS/cm to 2,000,000 µS/cm (2 S/cm). Measurement
choices are conductivity, resistivity, total dissolved solids, salinity, and % concentration.
Temperature compensation can be disabled, allowing the analyzer to display raw conductivity.
For more information concerning the use and operation of the toroidal conductivity sensors,
refer to the product data sheets.
Performance Specifications- Analyzer
Measurement Range: see table below
Repeatability: ±0.25% ±5 µS/cm after zero cal
Salinity: uses Practical Salinity Scale
Total Dissolved Solids: Calculated by multiplying conductivity at 25 °C by 0.65
Five percent concentration curves: 0-12% NaOH, 0-15% HCl, 0-20% NaCl, 0-25% or 96-
99.7% H2SO4. The conductivity concentration algorithms for these solutions are fully
temperature compensated. For other solutions, the analyzer accepts as many as five data
points and fits either a linear (two points) or a quadratic function (three or more points) to
the data. Reference temperature and linear temperature slope august also be adjusted for
optimum results.
Three temperature compensation options: manual slope (X% / °C), neutral salt (dilute
sodium chloride) and raw.
Input filter: time constant 1 - 999 sec, default 2 sec.
Response time: 3 seconds to 95% of final reading
Recommended Sensors:
All Rosemount submersion/immersion and flow-through toroidal sensors.
Temperature range
-25 to 210 °C
(-13 to 410 °F)
Temperature Accuracy,
Pt-100, -25 to 50 °C
± 0.5 °C
Temperature Accuracy,
Pt-100,. 50 to 210 °C
± 1°C
PERFORMANCE SPECIFICATIONS Recommended Range - Toroidal Conductivity
226: ±1% of reading ±5 µS/cm in recommended range
225 & 228: ±1% of reading ±10 µS/cm in
recommended range
222, 242: ±4% of reading in recommended range
225, 226 & 228: ±5% of reading outside high
recommended range
226: ±5 µS/cm outside low recommended range
225 & 228: ±15 µS/cm outside low recommended
range
Loop Performance (Following Calibration)