Emerson T56 Data Sheet
Product Data Sheet
00813-0100-3565, Rev AB
Rosemount™ Clarity II T56 Turbidimeter
Turbidity Measurement System
January 2021
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Complete system includes single or dual input transmitter, sensor(s), and debubbler assembly
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Resolution 0.001 NTU
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Easy to use transmitter with four analog outputs and four programmable alarm relays
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Intuitive, user-friendly menu in nine languages makes setup and calibration easy
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HART® digital communications standard
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Data and event logger stores thirty days of data for output on USB 2.0 memory stick
Rosemount T56 January 2021
Features and applications
The Rosemount T56 Turbidimeter is intended for the determination of turbidity in water. Low stray light, high stability, efficient
bubble rejection, and a display resolution of 0.001 NTU make the turbidimeter ideal for monitoring the turbidity of filtered drinking
water. You can also use the turbidimeter in applications other than drinking water treatment. Examples are monitoring wastewater
discharges, condensate returns, and clarifiers.
The turbidimeter consists of a transmitter, which accepts either one or two sensors, the sensors themselves, and a debubbler/
measuring chamber and cable for each sensor. The cable plugs into the sensor and the transmitter, making setup fast and easy.
Sensors can be located as far as 50 ft. (15.2 m) away from the transmitter.
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ISO 7027 sensors use a near infrared light-emitting diode (LED).
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The turbidimeter incorporates the popular and easy to use Rosemount 56 Transmitter.
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4-20 mA analog outputs are fully scalable.
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Every unit includes four alarm relays with interval timer functions. Alarms are fully programmable for high/low logic and dead
band.
The turbidimeter is available in an optional configuration in which the transmitter, sensor(s), and debubbling flow cell(s) are
mounted on a single back plate. The sensor cables are pre-wired to the transmitter, so setup is exceptionally fast and easy. Simply
mount the turbidimeter on a wall, bring in power and sample, and provide a drain. To order this option, consult the factory.
Contents
Features and applications.................................................................................................................................................................. 2
Ordering information........................................................................................................................................................................ 3
Specifications.................................................................................................................................................................................... 5
Dimensional drawings..................................................................................................................................................................... 10
Accessories......................................................................................................................................................................................13
Calibration standards.......................................................................................................................................................................13
2 Emerson.com/Rosemount
January 2021 Rosemount T56
Ordering information
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The Rosemount Clarity II Turbidimeter is a complete system
for the determination of turbidity in water.
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It consists of an analyzer and one or two sensors with a
debubbler/measuring chamber assembly and a cable for
each sensor.
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Four alarm relays are standard.
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A calibration cup is available as an option.
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Because a sensor cannot be calibrated without a calibration
cup, order at least one cup.
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Calibration standard (formazin or polymer spheres) must be
ordered as a separate item
VIEW PRODUCT >
Sensor
Code
02 ISO sensor
41 Two ISO sensors
Description
Measuring chamber
Code
10 Debubbler flow chamber (required -02)
60 Two debubbler flow chambers (required -41)
Description
Sensor cable
Code
Description
20 20-ft. (6.1 m) cable
21 50-ft. (15.2 m) cable
50 Two 20-ft. (6.1 m) cables
51 Two 50 ft. (15.2 m) cables
23 One 20-ft. (6.1 m) cable, one 50-ft. (15.2 m) cable
Rosemount T56 3
Rosemount T56 January 2021
Instrument
Code Description
30 Single input/HART® turbidity instrument (56-03-27-38-HT) (required -02)
31 Dual input/HART turbidity instrument (56-03-27-37-HT) (required -41)
Calibration cup
Code Description
71 Calibration cup (recommended for calibration)
4 Emerson.com/Rosemount
January 2021 Rosemount T56
Specifications
Note
Specifications subject to change without notice.
General specifications
Enclosure
Dimensions
Conduit openings
Display
Measurement character
height
Security code
Languages
Polycarbonate. Type 4X/CSA 4X IP66
6.2 x 6.2 x 5.2-in. (157 x 157 x 132 mm)
Accepts ½-in. or PG 13.5 conduit fittings.
Large 3.76 x 2.2-in. (95.3 x 55.9 mm) high resolution color LCD display for large process variables
and user-definable display of diagnostic parameters. Back-lighting is user adjustable. You can
customize the main display to meet your requirements.
0.5-in. (13 mm)
Three-digit code prevents accidental or unauthorized changes in instrument settings and
calibration.
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English
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French
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German
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Italian
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Spanish
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Portuguese
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Chinese
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Russian
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Polish
Units
Display resolution:
turbidity
Display resolution: TSS
Calibration methods
Ambient temperature and
humidity
Turbidity
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NTU
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FTU
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FNU
Total suspended solids
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mg/L
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ppm
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No units
Four digits; decimal point moves from x.xxx to xxx.x
Four digits; decimal point moves from x.xxx to xxx.x
User-prepared standard, commercially prepared standard, or grab sample. For total suspended
solids, you must provide a linear calibration equation.
32 to 131 °F (0 to 55 °C)
Rosemount T56 5
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