Performance Specifications - Emerson 1057 Instruction Manual

MODEL 1057
CONTACTING CONDUCTIVITY (Codes -20, -30 and -40)
Measures conductivity in the range 0 to 600,000 μS/cm
(600mS/cm). Measurement choices are conductivity,
resistivity, total dissolved solids, salinity, and % concen-
tration. The % concentration selection includes the
choice of five common solutions (0-12% NaOH, 0-15%
HCl, 0-20% NaCl, and 0-25% or 96-99.7% H
The conductivity concentration algorithms for these
solutions are fully temperature compensated. Three
temperature compensation options are available:
manual slope (X%/°C), high purity water (dilute sodium
chloride), and cation conductivity (dilute hydrochloric
acid). Temperature compensation can be disabled,
allowing the analyzer to display raw conductivity. For
more information concerning the use and operation of
the contacting conductivity sensors, refer to the product
data sheets.
Note: When contacting conductivity sensors are used
for sensor 1 and sensor 2, Model 1057 can derive an
inferred pH value called pHCalc. pHCalc is calculated
pH, not directly measured pH.
Note: Selected 4-electrode, high-range contacting
conductivity sensors are compatible with Model 1056.
Input filter: time constant 1 - 999 sec, default 2 sec.
Response time: 3 seconds to 100% of final reading
Salinity: uses Practical Salinity Scale
Total Dissolved Solids: Calculated by multiplying
conductivity at 25ºC by 0.65
Cell 0.01μS/cm 0.1μS/cm
Constant
0.01
0.01μS/cm to 200μS/cm
0.1
1.0
4-electrode
SO ).
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PERFORMANCE SPECIFICATIONS

Recommended Range – Contacting Conductivity
1.0μS/cm 10μS/cm
0.1μS/cm to 2000μS/cm
1 μS/cm to 20mS/cm
Cell Constant Linearity
±0.6% of reading in recommended range
+2 to -10% of reading outside high recommended range
±5% of reading outside low recommended range
±4% of reading in recommended range
Temperature Specifications:
Temperature range
Temperature Accuracy,
Pt-1000, 0-50 ºC
Temperature Accuracy,
Pt-1000, Temp. > 50 ºC
RECOMMENDED SENSORS FOR CONDUCTIVITY:
All Rosemount Analytical ENDURANCE Model 400
series conductivity sensors (Pt 1000 RTD) and
Model 410 sensor.
family
4-electrode sensors
100μS/cm 1000μS/cm 10mS/cm
200μS/cm to 6000μS/cm
2000μS/cm to 60mS/cm
2 μS/cm to 300mS/cm
SECTION 1.0
DESCRIPTION AND SPECIFICATIONS
0-200ºC
± 0.1ºC
± 0.5ºC
ENDURANCE series of
TM
conductivity sensors
100mS/cm 1000mS/cm
20mS/cm to 600mS/cm
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