Cito Autosampler for S-flow IV

Autosampler for automated Houillon viscosity testing
Cito offers high-throughput sampling, eliminating any errors that could be caused by incorrect injection and frees up the operator to attend to other duties. It works fully autonomously, requiring no operator presence.
Autosampler
Excellent Repeatability
High throughput
Services up to 2 systems
Highly accurate

The new automatic sampler for Houillon kinematic viscosity testing

 

Following the success of the Cito, Omnitek developed a new generation for the popular viscosity autosampler, further increasing throughput, capacity and reliability. Integrating perfectly with S-flow IV operation, it makes Houillon viscosity testing even more accurate and easier than before. With its unattended operation, Cito is able to service 8 tubes, is customizable for different sample racks and can be added to any existing S-flow IV system in-field. The new Cito model now also includes an integrated drip-prevention system, ensuring the system can operate free of spillage or carry-over.

 

Cito consists of a custom robotic arm that is mounted onto a base frame, which can reach and serve up to two S-flow IV instruments, one on either side. Around the base and on the flat top of Cito sufficient space is offered to store pipette racks and sample trays.

 

The optimized Cito work area provides sample space to store 6 pipette racks (with optionally different tips for standard and high-viscosity samples) and 4 sample racks. Below the work area is a large drawer to store consumables, as well as storage for the tips that were discarded after an injection.

 

Cito automatically detects the level in each individual sample vial, thereby minimizing tip immersion depth. Additionally, a new drip-prevention mechanism places a retractable reservoir below the pipette to catch any droplet that may fall from the tip, eliminating any potential spillage or carry-over.

From a single sample aspiration, 2 sequential injections in 2 independent baths can be performed using only a single pipette tip. When injecting into tubes at 40 ºC and 100 ºC, the PC software automatically provides the Viscosity Index. Up to 80 injections per hour can be performed at 2 temperatures in this manner, provided that 2 S-flow IV systems are connected. 

Omnitek offers standardized sample racks that can contain up to 4 racks of 96 samples each, with a total of 384 positions, using 12 ml sample vials often utilized by automatic sample preparation systems.
Omnitek offers the possibility of customizing a sample rack to facilitate the use of an existing sample cup or vial. For users with high sample throughput an upgrade from 1 L to 5 L waste/solvent bottles is available.

 

 

Features
Cito S-flow IV Autosampler
Sample racks 12 ml vials: 4* 96 positions a
Customized (on request)
Tip types 1000 µL standard tips
Wide bore tip, used for viscosities higher than 450 cSt @25 °C
Tip racks 12 ml vials: 6* 96 tips
Sample Injection volume range 100 – 1,000 µL
Supported vials 12 ml vials or a different type on request
Viscosity range of the sample at ambient temperature 2 – 2,500 mm2/s @25 °C 
 Software Omnitek Flow Control software
PC requirements

Windows 10, 5 Gb free hard drive space

3 USB 2.0 ports free

Dimensions for:

 

Cito b


Cito with 1 S-flow IV b 


Cito with 2 S-flow IV’s b

(w x d x h)

171 cm x 77 cm x 82 cm

Weight (empty) 86 kg
Room temperature c 15 ~ 25 °C
Humidity c 20 ~ 90 % RH non-condensing
Electrical requirements

100 - 240 VAC, 50 - 60 Hz

Power requirements 200 W
Communications 2 USB (+1 for 2nd S-flow IV unit)
Data export From PC software (output in the tab or comma-separated files, customizable and suitable for most LIMS system)

a The standard configuration is 2* 96 positions, but it can be easily upgradable to 4 sample racks 

b Physical dimensions, leave an additional 40 cm free next to each S-flow IV to handle the solvent bottles.

c Some applications can require lower humidity, temperatures, so samples are not compromised while waiting on their turn to get measured

 

Features

  • Modular high-speed autosampler.
  • Fully designed and produced by Omnitek, allowing us to provide better service and support.
  • Robust and durable Cartesian robot.
  • Cito services up to 2 S-flow IV instruments (8 tubes).
  • It can be added in-field to any existing S-flow IV.
  • Customizable to allow different sample cups and racks.
  • Optionally, the autosampler can allow the sample to be tested at 2 temperatures with a single sample aspiration by injecting the sample into 2 different tubes.
  • 2 pipette tip ejection points instead of one, preventing excess movements of the robot. 
  • 384 sample capacity offers 8-12 hours unattended operation.
  • Integrated drip-prevention system, ensuring the system can operate free of spillage or carry-over.
  • Process up to 80 injections per hour at 2 temperatures.

 

Standard Versions
 
384 positions of 12 ml vials

1 system set-up

2 systems set-up
Cito with 1 S-flow IV system - Left side view.png Cito with 2 S-flow IV systems - Right side view.png
The sample racks can be customized upon request.
 

                                        

                                       

Industries
Petroleum Based Samples
Other Sample Types

Refineries

Lubricating Oils

Printer ink

Terminals (Fuel Distribution)

Additives

Gelatins
Lubricant Manufacturers Base Stocks  

Additive Manufacturers

Industrial Oils

 

Condition Monitoring Labs

Transmission Oils

 

Third Party Testing Labs

Hydraulic Fluids

 

Research & Development Labs

Used Oils

 

Quality Control Labs

Waste Oils

 

Military Labs

Crude Oils

 

Power Plants

Fuel Oils

 

Mines

Gasoline 

 

Customs

Diesel

 

Universities

Bio Fuels

 

Automotive

Marine Fuels

 

Chemical Plants

 

 

Iron & Steel

   

Textile

   

Aviation

   

Railways

   
Highways    

For other fluids / solutions please send your inquire

 

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Cito S-flow IV autosampler - v1

2020-2023

 

The first automatic sampler of its kind for Houillon kinematic viscosity testing.

Contact us to discuss the specifics of your tailor-made Cito autosampler for your Houillon viscometer

Omnitek is a viscometer manufacturer based in The Netherlands and develops Houillon viscometers with an optional robotic arm that automates the injection procedure in the methodology, choose the configuration that best suits your lab and your sample vial. Request an informative brochure or experience how easy can be measuring Houillon viscosity with Cito through our online demo facilities. Would you like our advice, or do you have questions about the use of our Cito Autosampler? Please, contact us by calling +31 (0)182 - 302990 or send an email to info@omnitek.nl to ask for our assistance. We manufacture each system according to the requirements of our clients.