Rosemount Analytical T56 Clarity II Turbidimeter
Starting at $3,339.00

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  • Single or dual input analyzer
  • 4 analog inputs
  • 4 programmable alarm relays
  • HART® digital communications
  • Stores thirty days of data for output on USB 2.0 memory stick
  • Polycarbonate NEMA 4X/CSA 4X IP66
  • Accepts 1/2” or PG 13.5 conduit fittings
  • Large color LCD 3.75 x 2.2in (95.3 x 55.9mm)
  • 9 languages
  • Current output accuracy: ±0.05 mA @25°C

The Rosemount Analytical T56 Clarity II 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 Clarity II ideal for monitoring the turbidity of filtered drinking water. Clarity II is also suitable for applications other than drinking water treatment including monitoring of filtered water discharges, condensate returns, and clarifiers.

Both US EPA 180.1 and ISO 7027 compliant sensors are available. US EPA 180.1 sensors use a visible light source. ISO 7027 sensors use a near infrared LED. For regulatory monitoring in the United States, US EPA 180.1 sensors must be used. Regulatory agencies in other countries august have different requirements.

The Clarity II turbidimeter consists of an analyzer, with either one or two signal input boards, sensor(s), and a debubbler/measuring chamber and cable for each sensor. The cable plugs into the sensor and the analyzer, making setup fast and easy. Sensors can be located as far as 50 ft (15.2 m) away from the analyzer.

The Clarity II turbidimeter incorporates the easy-to-use 56 intelligent analyzer. Menu screens and prompts are so intuitive on the large LCD display that a manual is practically not needed. 4-20mA analog outputs are fully scalable. Every unit includes four alarm relays with interval timer functions. Alarms are fully programmable for high/low logic and dead band. To simplify start-up and programming, the analyzer automatically recognizes installed turbidity signal boards and detects whether an EPA 180.1 or ISO 7027 sensor is being used.

Clarity II is available in an optional configuration in which the analyzer, sensor(s), and debubbling flow cell(s) are mounted on a single back plate. The sensor cables are pre-wired to the analyzer, so setup is exceptionally fast and easy. All the user does is mount the unit on a wall, bring in power and sample, and provide a drain. To order this option, consult the factory.


Rosemount Analytical Turbidity Sensor Cable
Turbidity sensor cable available in 20 & 50 feet
Rosemount Analytical 24138-00 Sensor Cable
3ft turbidity sensor cable for Clarity II


Please consider these optional accessories.

Rosemount Analytical Replacement Lamp ISO
Replacement Lamp ISO for T56
Rosemount Analytical Molded Debubbler
Molded debubbler with integral flow chamber
Rosemount Analytical 9550145 O-ring
O-ring for sensor, external, fits molded debubbler
Rosemount Analytical Buna-N O-Ring
For upper and lower debubbler caps
Rosemount Analytical 905-761854 replacement Solution
Replacement solution for 4000 NTU premixed Kit
Rosemount Analytical 060-761855 Calibration Kit
Premixed 4000 NTU Formazin calibration Kit
Rosemount Analytical 99CC Calibration Certificate
One certificate per lot at standard factory ranges only, includes the model, serial and/or tag numbers (does not include actual test data)
Rosemount Analytical Electronic Calibration
Certificate for specific unit, includes model, serial and/or tag numbers, test standards, NIST report numbers, & the actual test data
Rosemount Analytical Certificate of Origin
Original certificate of origin with chamber of commerce stamp
Rosemount 1410 Wireless Gateway
Connects WirelessHART networks with host systems & data applications, offers network flexibility for remote indoor operations
Rosemount 1420 Wireless Gateway
NEMA 4X gateway connects WirelessHART networks with host systems with the capacity for up to 100 devices
Rosemount 775 Wireless THUM Adapter
Enables wireless capabilities for 2, 3, or 4-wire HART devices to remotely manage, monitor & gather data
In Stock

Spare Parts

Rosemount Analytical Replacement Lamp EPA
Replacement Lamp EPA for the T56


This product can be used in the following applications: