Thermo Orion Star A212 Benchtop Conductivity Meter
The Thermo Orion Star A212 benchtop conductivity meter with electrode stand is ideal for recording conductivity in the lab with Orion mini-DIN conductivity electrodes.
Features
- Displays conductivity, TDS, salinity, resistivity and temp readings using Orion mini-DIN electrodes
- AUTO-READ function alerts user and locks stable readings on backlit LCD screen
- USB and RS-232 ports allow easy data transfer of up to 2000 time-stamped data points
- Free ground shipping
- Expedited repair and warranty service
- Lifetime technical support
- More
Overview
The Thermo Orion Star A212 Benchtop Conductivity Meter is the ideal choice for any lab. The informative, backlit display shows conductivity, TDS, salinity, resistivity and temperature readings along with time, date, sample ID, user ID and calibration information. For advanced users, features such as stability and averaging choices provide additional options.
Easy Integration
Thermo Orion Star A210 series benchtop meters provide a large storage capacity for time-stamped data points, which can be conveniently uploaded to a PC through the meter's USB and RS-232 ports. Complimentary data analysis software allows users to quickly view and manipulate data. Accuracy can be ensured through the 5 selectable reading reference temperatures and a multitude of curve options.
Benefits
- AUTO-READ function alerts the user and locks on-screen readings when stable
- Selectable cell constant allows for use with 2- or 4-cell conductivity cells
- Selectable reading reference temperatures of 5, 10, 15, 20 or 25 C with linear, non-linear, nLFu or EP curve options
- Choice of practical salinity or natural sea water curves for salinity readings
- Linear or ISO/EN 27888 curves for TDS
- USB and RS-232 ports to upload data and update included data analysis software
- Non-volatile memory holds up to 2000 time-stamped data points
- Electrode arm and newly-designed probe holder to place probes into samples
- Universal power supply or battery power option
- Interface supports English, Spanish, French, Italian, German and Chinese languages
- IP54-rated splashproof housing
- 3 year meter warranty
- Conductivity
- Range: 0.001 uS to 3000 mS
- Resolution: Min 0.001 uS or 4 significant figures
- Relative Accuracy: 0.5% reading +/-1 digit
- Reference: 5, 10, 15, 20, 25 C (default)
- Compensation: Linear (0.0 to 10.0 %/C)
- Compatible Cell Constants: 0.001 to 199.9
- Number of Calibration Points: Up to 5
- Calibration Editing: Yes
- Resistivity
- Range: 2 ohm to 100 meg-ohm
- Resolution: 2 ohm-cm
- Relative Accuracy: 0.5% reading +/-1 digit
- Salinity
- Type: Practical salinity or natural sea water
- Range: 0.01 to 80.0 ppt NaCl equivalent; 0.01 to 42 ppt practical
- Resolution: 0.01
- Relative Accuracy: +/-0.1
- TDS
- Range: 0 to 200 ppt
- Resolution: 4 significant figures
- Relative Accuracy: 0.5% reading +/-1 digit
- TDS Factor Range: Linear 0.01 to 10.00
- Temperature
- Range: -5 to 105 C
- Resolution: 0.1
- Relative Accuracy: +/-0.1 C
- Offset Calibration: 1 point
- Datalogging
- Number of Points: 2000 with time and date stamp
- Log Function: Manual, ready (AUTO-READ), timed
- Log Edit: Delete individual points, group of points or all
- General
- Display: Backlit LCD
- Inputs: 8-pin mini-DIN
- Outputs: RS-232, USB
- Power Adapter: Universal AC, 100-240 VAC
- Battery Power: 4 AAs, 800 hrs life
- Environmental Requirements: 5 to 45 C and 5 to 85% relative humidity, non-condensing
- Regulatory and Safety: CE, TUV 3-1, FCC Class A
- IP Rating: IP54, splashproof and dustproof
- Warranty: 36 months (from date of purchase)
In The News
Choosing The Right Thermo Benchtop For Your Project
Thermo Scientific’s Orion Star A line is full of options for completing projects from environmental monitoring to quality control and beyond. These include benchtops like the Orion Versa Star and portables like the Orion Star A329. 
 
Making the right selection is important for ensuring project success, but sometimes choosing a meter can be difficult. To make things a little easier, we talked with Ricki Hartwell, the global product manager for Thermo Scientific’s Orion Laboratory and Field Instruments. She gave some tips to help customers find the best meter to meet their needs. Let’s take a look at her recommendations for benchtops.
Read MoreWhat is Conductivity?
UPDATE : Fondriest Environmental is offering their expertise in conductivity through their new online knowledge base. This resource provides an updated and comprehensive look at conductivity and why it is important to water quality. To learn more, check out: Conductivity, Salinity and TDS. 
 
 
 Salinity and conductivity measure the water's ability to conduct electricity, which provides a measure of what is dissolved in water. In the SWMP data, a higher conductivity value indicates that there are more chemicals dissolved in the water. 
 
Conductivity measures the water's ability to conduct electricity. It is the opposite of resistance. Pure, distilled water is a poor conductor of electricity.
Read MoreCrystal Clear Problems: Impacts of Water Transparency in Aquatic Ecosystems
From crystal clear alpine lakes to muddy rivers and boggy swamps, water transparency is an easily observable water quality parameter to anyone who takes a few moments to peer into the (sometimes) murky depths. Water transparency varies dramatically based on the location of bodies of water among different watershed environments, but it can also change quickly due to a variety of internal and external factors. 
 
 At Miami University (OH), the Global Change Limnology Lab explores the many ways that water transparency impacts aquatic ecosystems. Operational for nearly 20 years, the lab trains undergraduate and graduate students and has conducted work from the midwest Great Lakes to Alaska, South America and New Zealand. 
 
 The Global Change Limnology Lab, headed by Dr.
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