Emerson Rosemount 56, Instruction Manual

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1.10 Dissolved Oxygen (Codes -25 and -35)
The 56 is compatible with the 499ADO, 499ATrDO, Hx438, Gx438 and BX438 dissolved
oxygen sensors and the 4000 percent oxygen gas sensor. The 56 analyzer displays dissolved
oxygen in ppm, mg/L, ppb, µg/L, % saturation, % O
2
in gas, ppm O
2
in gas. The analyzer fully
compensates oxygen readings for changes in membrane permeability caused by
temperature changes. An atmospheric pressure sensor is included on all dissolved oxygen
signal boards to allow automatic atmospheric pressure determination during air calibration.
Calibration can be corrected for process salinity if removing the sensor from the process liquid
is impractical. The analyzer can be calibrated against a standard instrument. For more
information on the use of amperometric oxygen sensors, refer to the product data sheets.
Performance Specifications - Analyzer
Resolution: 0.01 ppm; 0.1 ppb for 499A TrDO sensor (when O2 <1.00 ppm); 0.1%
Input Range: 0 nA – 100 µA
Temperature Compensation: Automatic or manual (0-50 °C).
Input filter: Time constant 1 - 999 sec, default 5 sec
Response time: 6 seconds to 95% of final reading
Recommended Sensor
Rosemount amperometric membrane and steam-sterilizable sensors listed above
1.11 Dissolved Ozone (Code -26 and -36)
The 56 is compatible with the 499AOZ sensor. The 56 fully compensates ozone readings for
changes in membrane permeability caused by temperature changes. For more information
concerning the use and operation of the amperometric ozone sensors, refer to the product
data sheets.
Performance Specifications - Analyzer
Resolution: 0.001 ppm or 0.01 ppm – selectable
Input Range: 0 nA – 100 µA
Temperature Compensation: Automatic or manual (0-35 °C)
Input filter: Time constant 1 - 999 sec, default 5 sec.
Response time: 6 seconds to 95% of final reading
Recommended Sensor
Rosemount 499A OZ ozone sensor.
Dissolved Ozone 499AOZ
sensors with Polysulfone
body Variopol
connection and cable
connection
Dissolved Oxygen 499ADO
sensor with Variopol
connection
12 Description and Specifications
Section 1: Description and Specifications Instruction Manual
April 2017 LIQ-MAN-56