SELECT `e`.*, IF(at_visibility.value_id > 0, at_visibility.value, at_visibility_default.value) AS `visibility`, IF(at_status.value_id > 0, at_status.value, at_status_default.value) AS `status`, `cat_index`.`position` AS `cat_index_position` FROM `catalog_product_entity` AS `e` INNER JOIN `catalog_product_entity_int` AS `at_visibility_default` ON (`at_visibility_default`.`entity_id` = `e`.`entity_id`) AND (`at_visibility_default`.`attribute_id` = '102') AND `at_visibility_default`.`store_id` = 0 LEFT JOIN `catalog_product_entity_int` AS `at_visibility` ON (`at_visibility`.`entity_id` = `e`.`entity_id`) AND (`at_visibility`.`attribute_id` = '102') AND (`at_visibility`.`store_id` = 1) INNER JOIN `catalog_product_entity_int` AS `at_status_default` ON (`at_status_default`.`entity_id` = `e`.`entity_id`) AND (`at_status_default`.`attribute_id` = '96') AND `at_status_default`.`store_id` = 0 LEFT JOIN `catalog_product_entity_int` AS `at_status` ON (`at_status`.`entity_id` = `e`.`entity_id`) AND (`at_status`.`attribute_id` = '96') AND (`at_status`.`store_id` = 1) INNER JOIN `catalog_category_product_index` AS `cat_index` ON cat_index.product_id=e.entity_id AND cat_index.store_id='1' AND cat_index.category_id = '518' AND cat_index.is_parent=1 WHERE (IF(at_visibility.value_id > 0, at_visibility.value, at_visibility_default.value) = '4') AND (IF(at_status.value_id > 0, at_status.value, at_status_default.value) = '1') AND (type_id = 'grouped' OR (type_id = 'simple' AND `e`.entity_id NOT IN (SELECT child_id FROM catalog_product_relation WHERE 1))) ORDER BY `cat_index`.`position` ASC LIMIT 100Array ( [0] => Array ( [entity_id] => 111970 [entity_type_id] => 4 [attribute_set_id] => 14 [type_id] => grouped [sku] => VisiFerm [has_options] => 0 [required_options] => 0 [created_at] => 2017-12-20 05:32:08 [updated_at] => 2018-01-05 08:18:51 [visibility] => 4 [status] => 1 [cat_index_position] => 1 )[1] => Array ( [entity_id] => 111948 [entity_type_id] => 4 [attribute_set_id] => 14 [type_id] => grouped [sku] => OxyFerm [has_options] => 0 [required_options] => 0 [created_at] => 2017-12-20 05:31:45 [updated_at] => 2018-01-05 07:12:56 [visibility] => 4 [status] => 1 [cat_index_position] => 2 )[2] => Array ( [entity_id] => 111973 [entity_type_id] => 4 [attribute_set_id] => 14 [type_id] => grouped [sku] => VisiTrace [has_options] => 0 [required_options] => 0 [created_at] => 2017-12-20 05:32:11 [updated_at] => 2018-01-05 08:19:26 [visibility] => 4 [status] => 1 [cat_index_position] => 3 )[3] => Array ( [entity_id] => 111983 [entity_type_id] => 4 [attribute_set_id] => 14 [type_id] => grouped [sku] => VisiPro [has_options] => 0 [required_options] => 0 [created_at] => 2017-12-20 05:32:21 [updated_at] => 2018-01-05 08:19:31 [visibility] => 4 [status] => 1 [cat_index_position] => 4 )[4] => Array ( [entity_id] => 111982 [entity_type_id] => 4 [attribute_set_id] => 14 [type_id] => simple [sku] => 243650 [has_options] => 0 [required_options] => 0 [created_at] => 2017-12-20 05:32:20 [updated_at] => 2018-01-05 07:14:10 [visibility] => 4 [status] => 1 [cat_index_position] => 5 )[5] => Array ( [entity_id] => 111993 [entity_type_id] => 4 [attribute_set_id] => 14 [type_id] => grouped [sku] => OxyGold [has_options] => 0 [required_options] => 0 [created_at] => 2017-12-20 05:32:39 [updated_at] => 2018-01-05 07:14:11 [visibility] => 4 [status] => 1 [cat_index_position] => 6 )[6] => Array ( [entity_id] => 111992 [entity_type_id] => 4 [attribute_set_id] => 14 [type_id] => simple [sku] => 237150 [has_options] => 0 [required_options] => 0 [created_at] => 2017-12-20 05:32:38 [updated_at] => 2018-01-05 07:14:24 [visibility] => 4 [status] => 1 [cat_index_position] => 7 ))

Hamilton Dissolved Oxygen Sensors (7)

Dissolved oxygen (DO) plays an essential role in pharmaceutical, biotech, and other high purity chemical processes. In fermentation and cell culture, the proper oxygen level supports cell growth. On the other hand, when manufacturing products that can be damaged by corrosion, high oxygen levels can degrade product quality. As a result, companies in the high purity industry must monitor oxygen levels closely.


Dissolved oxygen sensors measure in-line oxygen levels, allowing you to spot potential leaks and optimize oxygen levels for process efficiency. At Sentinel Process Systems, we offer a range of dissolved oxygen monitoring equipment made by Hamilton Company. These sensors boast long lifespans and low maintenance requirements to meet the challenges of demanding applications.

  • VisiFerm (21)

    Standard Features

    Hamilton VisiFerm; Optical Dissolved Oxygen Sensors; for Biotech and Pharmaceutical Applications
  • OxyFerm (19)

    Standard Features

    Hamilton OxyFerm; Electrochemical Dissolved Oxygen Sensors; for Applications in the Biotech, Pharmaceutical, and Food & Beverage Industries
  • VisiTrace (2)

    Standard Features

    Hamilton VisiTrace; Optical Dissolved Oxygen Sensors; for Low ppb Ranges in Brewing Applications, Including Filtration and Filling
  • VisiPro (8)

    Standard Features

    Hamilton VisiPro; Optical Dissolved Oxygen Sensors; for Explosive Environments
  • VisiWater DO Arc 120 FC10

    Standard Features

    Hamilton VisiWater; Dissolved Oxygen Sensors for Water Applications
  • OxyGold (8)

    Standard Features

    Hamilton OxyGold; Electrochemical Dissolved Oxygen Sensors; for CO2 and Low Oxygen Concentration Applications
  • OxySens 120

    Standard Features

    Hamilton OxySens; Electrochemical Oxygen Sensor; for Water Applications (e.g. wastewater treatment, or fish farms)

 

 

The Importance of Dissolved Oxygen Measurement

Maintaining optimal oxygen levels throughout the biopharmaceutical process helps ensure product quality and process efficiency. However, some oxygen sensors may be thrown off by environmental fluctuations, require frequent calibration or replacement to ensure accurate readings. In fact, 80 percent of sensor costs come after initial purchase, so it's important to choose a sensor that will maximize performance and minimize ownership cost.

 

Hamilton Dissolved Oxygen Sensors

Hamilton dissolved oxygen sensors are engineered with innovations to streamline calibration, troubleshooting, connectivity and documentation within biopharmaceutical companies.

At Sentinel, we offer dissolved oxygen probes from the Visi and Oxy lines of Hamilton products. Both the polarographic and optical dissolved oxygen line probes take accurate measurements and withstand frequent CIP cleaning procedures.

 

The Polarographic Line

Hamilton's Polargraphic line is a family of traditional polarographic oxygen sensors, which have more than 60 years of use history. These sensors measure dissolved oxygen using a chemical reaction that emits an electrochemical signal proportional to the oxygen concentration in the sample. Hamilton's polarographic sensors feature an industry-leading calibration time of two hours and a unique, modular design to make maintenance and component replacement as easy as possible.

 

The Polarographic line includes: 

 

The Optical Dissolved Oxygen Line

The Optical Dissolved Oxygen Line further improves on the traditional polarographic method of oxygen monitoring. These optical DO probes use an oxygen-sensitive fluorescent dye to measure oxygen levels. The dye comes fixed to a glass window in the sensor cap, allowing for easy, one-part replacement. Hamilton's optical sensors are insensitive to CO2 fouling, require no polarization time and allow for troubleshooting in less than 20 minutes.

 

The Visi line includes:

 

 

Applications of Visi and Oxy Sensors

Hamilton dissolved oxygen sensors help improve processes for a number of biotechnology and pharmaceutical companies. In one case study, a biotech company used VisiFerm sensors to automate DO control for microbial cultures in their laboratory-scale bioreactors. By connecting the sensors directly to process controls, the company was able to increase product yield and shorten turnaround times.

The Visi and Oxy sensors we offer are ideal for application in the biotech, pharmaceutical, food and beverage and water treatment industries.

 

Get Oxygen Monitoring Equipment From Sentinel Process Systems

Your oxygen sensors can influence your company's process efficiency. The distributor you choose can affect your operations, as well. At Sentinel Process Systems, we've been providing reliable, high-purity solutions since 1950. Browse our selection of Hamilton dissolved oxygen sensors online today or contact us for more information.