VELP OHS 200 Advance Overhead Stirrer

Safety and resistance for your lab

OHS 200 Advance is the VELP high-end overhead stirrer designed to guarantee the highest safety standards.

• The resistant sealed housing and the IP 54 Protection Rating guarantee durability even in the most aggressive environments.
• Integrated overload, overtemperature, and overcurrent safety alarms will preserve the performance over time by stopping the stirring
• Safe start and stop knob operation and lock key avoid unintended start up and changes of the working conditions.
• Integrated vibration sensor with different levels of sensitivity will stop the operation and inform you to be sure that your OHS is stable and properly fixed.
• OHS 200 Advance ensures continuous operation and is backed by 3 Years Warranty extension.

Best-in-class Stirring Power

The OHS 200 Advance is the ideal solution for demanding applications operating with viscosities up to 100.000 mPa. The electronic controlled brushless motor of the OHS 200 Advance stirs up to 100 l with a maximum torque of 200 Ncm, and ensures the longest lifespan.

SpeedServoTM torque compensation technology keeps the speed constant automatically adjusting to viscosity changes.

Thanks to the two speed gears it provides the best performance for both high torque and high volume operations:
Speed gear 1: 6-400 rpm
Speed gear 2: 30-2000 rpm

Constant torque at any speed

The brushless motor and the microprocessor guarantee excellent performance marking the difference between a conventional overhead and the VELP OHS Series.

The torque is stable at throughout the whole speed range, ensuring stirring at maximum torque even at the highest speed. This is a very important parameter for the reproducibility of your tests.

Precise torque measurement is available in the dedicated section of the display and you can a monitor in the real-time graph the evolution of the torque power during your test.

SmartChuck: shaft accommodation has never been so easy!

The OHS Advance SmartChuck™ technology simplifies the shaft accommodation process that can be carried out even with one hand and does not require any tool, making your life easier.

With two simple operations, you can unlock the protection ring to drive the shaft in and out with maximum ease.

The opening of the ring during the stirring process will automatically block the analysis and the instrument informs you for maximum safety.

Intuitive and precise

The OHS 200 Advance intuitive 3,5” TFT Display will guide you to precisely set your working conditions and get reproducible results. It shows the main information at a glance together with torque measurement on display for real-time information on viscosity change with a resolution of 1 Ncm.

Interact with the OHS Advance from the real-time graph showing speed, torque and temperature of your test.

The OHS 200 Advance works unattended thanks to the timer settable from 1min to 99.59h. Define and program your operating methods that are ideal for demanding tasks where ramps and interval operation are required.

Keep Temperat

ure Under Control

The OHS Advance comes with a Pt100 temperature probe included in your package.

Constantly monitor the temperature of your reaction and set the instrument to reduce speed or interrupt the task if the temperature reaches a defined value. This is important when you want to avoid that exothermic reactions will interfere with your analysis!

The advantages of OHS Advance connectivity

The OHS Advance is the only overhead stirrers to offer the possibility of controlling and monitoring processes through Wi-Fi connection to VELP Ermes and through USB.

VELP Ermes cloud platform allows to control the OHS Advance from PC, smartphone and tablet through a simple and intuitive web interface. With this platform designed by VELP , it is possible to activate the stirring, set a timer, set a method (among those saved on the device), download and share reports with a click.

For the applications in the pharmaceutical, biotechnology and life science sectors, VELP Ermes can manage OHS Advance located in clean-rooms or other controlled environments, without the need of long safety procedures.

With the OHS/CotrollerSoftTM software, VELP offers the possibility to all laboratories that can't benefit from cloud services, a valid alternative with USB connectivity.

TECHNICAL DATA

DISPLAY	3,5" Graphic TFT Display
USER INTERFACE	Digital
MOTOR	Brushless DC
STIRRING VOLUME (H2O)	Up to 100 L
SPEED GEARS	2
MAX TORQUE	200 Ncm
STIRRING SPEED RANGE	6-400 rpm 30-2000 rpm
SPEED SETTING RESOLUTION	1 rpm
SPEED CONTROL	Digital
MAX VISCOSITY	100.000 mPa*s
TORQUE COMPENSATION	SpeedServo™
CHUCK RANGE	Ø from 1 to 13 mm
SHAFT DIAMATER PASS-THROUGH	up to 8.5mm
SAFETY VIBRATION SENSOR	Yes
TIMER	Yes
METHOD SETTING	Yes
LOCK OF THE INSTRUMENT	Yes
EXTERNAL PROBE CONNECTION	Pt100
TEMPERATURE MEASURING RANGE	-200 to +550 °C
TEMPERATURE RESOLUTION	0.1 °C
INTERFACES	USB / WiFi
DIMENSIONS (WXHXD)	90x315x235 mm (3.5x12.4x9.3 in)
WEIGHT	4,6 kg (10,1 lb)
PROTECTION CLASS DIN EN 60529	IP 54

Brochures & Leaflets

VELP Scientifica invites you to download brochures and leaflets in order to explore our premium quality solutions and to have all the major key arguments, features and specifications of a product in your hands, in any place, and at any time.

OHS Series - How to connect to VELP Ermes
OHS Series Overhead Stirrers - Brochure [EN]
Laboratory Equipment - Line Brochure [EN]
Product Portfolio - Brochure [EN]

Instruction manuals

Download the instruction manual that contains all the main technical specifications of the instrument and the necessary information for its correct use.

OHS Advanvce instruction manual

Comparison tables

Select the category of products you are interested in and this tool will give you an easy overview of what is available at VELP in order to find the product that is perfect for you. These comparison tables provide a brief description with side by side features from basic equipment to the most advanced analytical solutions.

VELP Overhead Stirrers Comparison Table
VELP Stirring Shaft Comparison Table

Certifications

Our compliance to statutory rules and regulations worldwide.
With the CE mark, VELP Scientifica declares that the products are designed and manufactured in compliance with the essential safety requirements of the European Directive on Safety.
The Certification Body (CB) Certificate is an international program created by the IECEE for the acceptance of product safety test results among participating laboratories and certification organizations around the world.
The cNEMKOus mark ensures this product is designed and manufactured in compliance with the International Directive on Safety IEC/EN 61010-1. The cNEMKOus mark has the same legal status as any other NRTL/SCC accredited marks, for U.S. and Canada.

CB Certificate VELP Scientifica Overhead Stirrers
CE Declaration of Conformity VELP Scientifica OHS Digital Overhead Stirrers
cNEMKOus VELP Scientifica Overhead Stirrers OHS