Emerson 5081-T - Manual (Page 17)

11
MODEL 5081-T SECTION 2.0
INSTALLATION
TABLE 2-1. Model 5081-T Sensor Selection
2.3.4 Inductive Loops.
The Model 5081-T conductivity transmitter is designed to make accurate measurements while in contact with the process
stream. Measurements can also be tailored to high temperature and/or high pressure streams.
2.3.5 Sensor Selection.
All Rosemount Analytical contacting conductivity sensors with PT100 RTD or PT1000 RTD are compatible with the Model
5081-T transmitter. Please refer to Figures 3-5 thru 3-7 for appropriate sensor to transmitter wiring. The sensor cable
should be routed through the left inlet closest to the connector.
Choose an inductive conductivity sensor that is appropriate for your process conditions and range of conductivity meas-
urement.
NOTE: Values shown are for 25°C conductivity with a temperature slope of 2% per
degree C. The maximum range value will be lower for solutions with a higher
temperature slope. Minimum conductivity depends on sensor.
RECOMMENDED RANGES FOR TOROIDAL SENSORS
Conductivity Sensor
Model Number 226 228 225 222 (1in.) 222 (2 in.) 242
Nominal Cell Constant 1.0 3.0 3.0 6.0 4.0 *
Min. Conductivity ( µµS/cm) 50 200 200 500 500 100*
Max. Conductivity ( µµS/cm) 1,000,000 2,000,000 2,000,000 2,000,000 2,000,000 2,000,000*
* Model 242 values depend on sensor configuration and wiring.
RECOMMENDED SENSORS:
Model 222 Flow-Through
Model 225 Clean-In-Place (CIP)
Model 226 Submersion/
Insertion
Model 228 Submersion/
Insertion/
Retractable
Model 242 Flow-Through*
* Model 242-06 or 242-08 with 5081T
do not have Intrinsically Safe
approvals.