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Dissolved Oxygen Meter

Eight Easy to use Bench top and portable models from Hanna Instruments are listed below:

Hanna Instruments Waterproof Portable Dissolved Oxygen MeterHanna Instruments Waterproof Portable Dissolved Oxygen Meter

The new Dissolved Oxygen Meters: HI 9146 are affordable too!

DO Meter for field applications                                            Portable DO Meter for Field Applications

  • Measurements Displayed in PPM or % Saturation

  • High Resolution- 0.01mg/l

  • Water Resistant

  • 4 or 10 meter cabled DO sensors

  • Expanded range: 0.00 to 45.00mg/l

  • Also reads in % oxygen saturation

  • Automatic temperature compensation

HI 9146 is a water-resistant, microprocessor- based, Dissolved Oxygen meter with automatic calibration and temperature compensation (ATC). DO measurements can be displayed in parts per million (ppm=mg/l) or in % of saturation. The temperature range is indicated in Celsius from 0 to 50C with 0.1 resolution. This meter also allows manual compensation of altitude and salinity values. The polarographic probe, supplied with the instrument, is provided with a protective cover for the membrane. A HOLD button allows the user to freeze the reading on the LCD. HI 9146 can be powered with batteries 2 (with low battery indicator) or through a 12 Vdc adapter.  See blue cased meter above for picture.

HI 9146-04 is supplied complete with HI 76407/4F probe with 4 m (13') cable and protective cap, 2 spare membranes, HI 7041S electrolyte solution (30 ml), batteries, hard carrying case and instructions. HI 9146-10 is supplied complete with HI 76407/10F probe with 10 m (33') cable and protective cap, 2 spare membranes, HI 7041S electrolyte solution (30 ml), batteries, hard carrying case and instructions.  
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Graphic LCD Portable Dissolve Oxygen Meter: HI 98186

    Top of the line DO meter is loaded with features

HI 98186 Dissolved Oxygen Meter

This deluxe DO meter does it all.  Record BOD data by bottle number.  Indicate "seeded" BOD data with an asterisk designation (*).  Show starting and ending DO values and automatically calculated and stores BOD data.  Collected data can be transferred to a PC log program which aids in record keeping when in a typical laboratory dissolved oxygen readings are taken on multiple samples.  Temperature, salinity and barometric pressure compensation are all factored in the readings.  This makes the extremely rugged military cased HI 98186 DO meter a valuable addition to any lab.

Totally waterproof field meter with inductively charged rechargeable batteries and a large graphic display allows the user to see and command large amounts of data.  This unit is very easy to use and even has an extensive help menu. 

DO: Dissolved Oxygen

This meter can measure DO in either mg/l or as percent saturation.  Temperatures can be read in either F or C and the internal barometric pressure can be measured in a variety of common units.  As with all DO measurements, water movement is required.  A moving stream, motion of the probe or a stirring bar is normally employed. 

SOUR:  Specific Oxygen Uptake Rate

This is also referred to as the oxygen consumption or respiration rate.  Measuring the amount of oxygen (mg) consumed per gram of volatile suspended solids (VSS) per hour is defined as SOUR.  This test is very quick to make as opposed to a five day BOD.  It has other advantages as well.  It is a rapid measure of influent organic loading and/or toxic/inhibitory wastes.  Using this test one can easily determine the oxygen demand rate at various points (such as an aeration basin)SOUR= OUR (Oxygen Uptake Rate) per weight of solids. 

OUR: Oxygen Uptake Rate

This is an absolute respiration rate based on beginning and ending DO over a time interval.  The meter will calculate the value for one hour even though the actual test could be much shorter. 

BOD: Biological Oxygen Demand

Diluted samples are kept in the dark for five days and then measured for DO.  The amount of DO lost is corrected by the dilution factor and then referred to as: BOD/5 or BOD5.  The meter can keep track of 400 samples each with a unique bottle number, dilution factor, seed volume, time and date.  The meter can at any point calculate the BOD level and log the result.  The tracking and logging functions together with the mathematical capabilities make this a very powerful instrument.

 

Logging is accomplished thru a waterproof USB port.  The meter has automatic salinity and barometric pressure compensation.  This makes it very versatile in any number of field applications.  The meter has a built in user prompt for calibration.  And unlike many meters, this one can be calibrated at several points.  With the very fast polarographic sensor, the user need not wait for lengthy instrument warm ups.  Initialization is only one minute.

SPECIFICATIONS:

Range:                                 0.00 to 50.00ppm or 0.0 to 600.0% saturation

Resolution:                           0.01ppm or 0.1% saturation

Calculates:                            BOD, OUR (Oxygen uptake rate), SOUR (Oxygen uptake rate/g of vol. Suspended Solids)

Barometer pressure:              450-850 mmHg

Salinity compensation:           0-70g/l

Temperature:                         -20.0 to 120.0C

Calibration:                           Automatic, 1 or 2 points or manual 1 point

Temperature compensation:   Automatic

Probe:                                   4 meter cable polarographic with built-in temperature sensor

Logging:                                Log on demand, 400 samples

PC Connectivity:                    Opt-isolated USB (with HI 92000 software)

Battery type/life:                   4 x 1.2Vdc rechargeable batteries/200 hours

Recharger:                            Inductive recharger (included with meter)

Auto-off:                               User selectable from 5 to 60 minutes or disabled

Help Screen:                         Complete manual display on board

Environment:                        IP67 (waterproof)

Weight:                                 525g (About 1.2#)

Includes:      recharger, carrying case, probe with 13' cable, batteries, 2 spare membranes, electrolyte

Click to buy on-line:

 

Hanna Instruments Dissolved Oxygen Meter: HI 9142

 

 

Dissolved Oxygen Meter for BOD in the lab or DO in the fieldWaterproof Dissolved Oxygen Meter

  • Rugged, water resistant casing
  • Simple, one point calibration
  • ATC circuitry for high accuracy

The ever increasing demand for instant results from on-site analysis has created a constant need for portable, waterproof meters. Measurements in the field can subject instrumentation to the inclemency of weather. Cold, rain, snow and dust associated with use in the field, can damage a meter, rapidly deteriorating its performance and life. HI 9142 is a rugged, waterproof meter that solves these common problems of field use. It is very simple to use: calibration is performed with HI 7040 zero oxygen solution, while 100% calibration is done in air. There is no need to use chemical solutions or go through time consuming calibration procedures. The polarographic probe (HI 76407/4) will take measurements accurate to 0.3 ppm in minutes and is supplied with a 4 m (13') cable that allows measurements to be taken even in even hard to reach places.

HI 9142 is supplied complete with HI 76407/4 D.O. probe with 4 m (13�) cable, 2 spare membranes, HI 7041S electrolyte solution (30 ml), calibration screwdriver, batteries, rugged carrying case and instructions.

 

 

 

 

Available Accessories:

HI 7040L

|

Zero oxygen solution (500 mL)

HI 7041S

|

Refilling electrolytes solution (30 mL)

HI 76407/4

|

D.O. probe with 4 m (13') cable

HI 76407/10

|

D.O. probe with 10 m (33') cable

HI 76407/20

|

D.O. probe with 20 m (67') cable

HI 76407A/P

|

Pack of 5 replacement membranes

HI 721317

|

Rugged carrying case

 

 

 

Specifications:

 

 

Range

 

0.0 to 19.9 mg/L

Resolution

 

0.1 mg/L

Accuracy (@20C/68F)

 

1.5% Full Scale

Calibration

 

Manual 1 or 2 points through trimmer

Temp. Compensation

 

Automatic from 32 to 86F (0 to 30C)

Probe

 

HI 76407/4 polarographic D.O. probe

Battery Type / Life

 

4 x 1.5 volt AA/ approx. 500 hours of continuous use

Environment

 

32 to 122F (0 to 50C)

Dimensions

 

7.7 x 3.1 x 2.4" (196 X 80 X 60mm)

Weight

 

3.1 lb (1.4 Kg) KIT: 3.1 lbs (1.4 Kg)

 

 

 

 

 

Dissolved Oxygen Meters: HI 9143 - HI 9145

 

Perfect waterproof dissolved oxygen (DO) meter for field testing of surface waters and even liquids with high DO content.

 

Extended Range Dissolved Oxygen Meters

  • Rugged and waterproof, ideal for outdoor applications
  • Automatic calibration
  • Extended D.O. range

Measurements in the field can subject instrumentation to the inclemency of weather. Cold, rain, snow, dust and humidity, associated with use in the field, can cause condensation which may damage a meter, rapidly deteriorating its performance and life. HI 9143 and HI 9145 are designed for harsh outdoor applications, especially waste water treatment and fish farming. Simple on-site calibration requires no chemical solutions. Just expose the probe to air and press the CAL button. In a few minutes, the meter is calibrated and ready to use. Auto-calibration eliminates the need to use a screwdriver or other devices to adjust the reading. The new and improved HI 9143 and HI 9145 measure and display O2 from 0 to 300%, 0 to 45 mg/L and temperature from 0 to 50 C. In addition to the features of HI 9145, HI 9143 also supplies the user with compensation of salinity and altitude factors. Both meters compensate for the temperature effect.

HI 9143 is supplied complete with D.O. probe HI 76407/4 with 4 m (13�) cable, 2 spare membranes, electrolyte solution HI 7041S (30 mL), batteries, rugged carrying case and instructions. HI 9145 is supplied complete with D.O. probe HI 76407/4 with 4 m (13�) cable, 2 spare membranes, electrolyte solution HI 7041S (30 mL), batteries, rugged carrying case and instructions.

 

 

 

 

Available Accessories:

HI 7041S

|

Refilling electrolyte solution (30 mL)

HI 710005

|

110V to 12VDC adapter

HI 710006

|

220V to 12VDC adapter

HI 76407/4

|

D.O. probe with 4 m (13') cable

HI 76407/10

|

D.O. probe with 10 m (33') cable

HI 76407/20

|

D.O. probe with 20 m (67') cable

HI 76407A/P

|

Pack of 5 replacement membranes

HI 721317

|

Rugged carrying case

 

 

 

Specifications:

 

 

Range Oxygen

 

0.00 to 45.00 mg/L

Range % Saturation Oxygen

 

0.0 to 300.0%

Range Temperature

 

0.0 to 50.0 C

Resolution Oxygen

 

0.01 mg/L

Resolution % Saturation Oxygen

 

0.1%

Resolution Temperature

 

0.1C

Accuracy (@20C/68F)

 

1.5% Full Scale (Oxygen); 0.5C (Temp)

Calibration

 

Automatic in saturated air

Temp. Compensation

 

Automatic from 32 to 122F (0 to 50C)

Auto Altitude Compensation: HI 9143

 

0 to 1900m (0 to 6230')

Resolution: HI 9143

 

100 meter

Auto Salinity Compensation: HI 9143

 

0 to 40 g/L (ppt)

Resolution: HI 9143

 

1 g/L (ppt)

Probe

 

HI 76407/4 Polarographic D.O. probe

Battery Type / Life

 

4 X 1.5 Volt AA / Power plug for 12VDC supply/ approx. 200 hours of continuous use

Environment

 

32 to 122F (0 to 50C)

Dimensions

 

7.7 x 3.1 x 2.4" (196 X 80 X 60mm)

Weight

 

3.1 lb (1.4 Kg)

 

 

 

Dissolved Oxygen Meters: HI 9146

 

 

DO Meter for field applicationsPortable D.O. Meter for Field Applications

  • Measurements Displayed in PPM or % Saturation
  • High Resolution
  • Water Resistant

HI 9146 is a water-resistant, microprocessor- based, Dissolved Oxygen meter with automatic calibration and temperature compensation (ATC). D.O. measurements can be displayed in parts per million (ppm=mg/L) or in % of saturation. The temperature range is indicated in Celsius from 0 to 50C with 0.1 resolution. This meter also allows manual compensation of altitude and salinity values. The polarographic probe, supplied with the instrument, is provided with a protective cover for the membrane. A HOLD button allows the user to freeze the reading on the LCD. HI 9146 can be powered with batteries 2 (with low battery indicator) or through a 12 Vdc adapter.

HI 9146-04 is supplied complete with HI 76407/4F probe with 4 m (13') cable and protective cap, 2 spare membranes, HI 7041S electrolyte solution (30 mL), batteries, hard carrying case and instructions. HI 9146-10 is supplied complete with HI 76407/10F probe with 10 m (33') cable and protective cap, 2 spare membranes, HI 7041S electrolyte solution (30 mL), batteries, hard carrying case and instructions.

 

 

 

 

Dissolved Oxygen Meters: HI 9141

 

 

Printing Dissolved Oxygen Meter (DO Meter) from Hanna InstrumentsPrinting and Logging Dissolved Oxygen Meter

  • High Accuracy
  • Documented Monitoring
  • Automatic Calibration

HI 9141 and HI 91410 are portable, printing D.O. meters designed for continuous monitoring and recording at selectable time intervals. The low-power printer uses regular paper that is easily sourced and will not fade over time. HI 91410 combines all of the comprehensive printing functions of the HI 9141, with the capability to log measurements. In addition to supplying the user with instant print-outs of D.O., HI 91410 also provides datalogging facilities that will store up to 8000 readings. These measurements can be scrolled through at any time, printed or even transferred to a computer system for elaboration or permanent storage. An optional HI 9200 infrared transmitter can be used to take the data from HI 91410 and send it to a computer without any cords. Simply place the meter on the cradle and, at the touch of a button, all of the recorded lots are transferred in seconds. This infrared connection is important in humid environments, where a standard RS232 plug on a meter could become damaged. In addition to the automatic calibration feature, both meters automatically compensate for two very important parameters: altitude from 0 to 1900 meters (6230'), and salinity from 0 to 40 g/L.

HI 9141 is supplied complete with D.O. probe HI 76407/4 with 4 m (13�) cable, 2 spare membranes, electrolyte solution HI 7041S (30 mL), 5 paper rolls, batteries, rugged carrying case and instructions.

 

 

 

 

Available Accessories:

HI 7041S

|

Oxygen electrolyte solution (30 ml)

HI 710005

|

110V to 12VDC adapter

HI 710006

|

220V to 12VDC adapter

HI 76407/4

|

D.O. probe with 4 m (13') cable

HI 76407/10

|

D.O. probe with 10 m (33') cable

HI 76407/20

|

D.O. probe with 20 m (67') cable

HI 76407A/P

|

Pack of 5 replacement membranes

HI 9200/9

|

Infrared transmitter (9-pin)

HI 92000

|

Windows compatible software

HI 710034

|

Paper roll (10 rolls)

HI 710035

|

Ink cartridge (1 pc)

HI 721317

|

Rugged carrying case

 

 

 

Specifications:

 

 

Range

 

0.00 to 19.99 mg/L / 0.0 to 50.0C

Resolution

 

0.01 mg/L / 0.1C

Accuracy (@20C/68F)

 

1.5% Full Scale / 0.5C

Calibration

 

Automatic in saturated air at 100%

Temp. Compensation

 

Built-in temperature sensor on D.O. probe automatic from 32 to 86F (0 to 30C)

Altitude Compensation

 

0 to 6,230' (1,900 m)

Resolution

 

328' (100 meters)

Salinity Compensation

 

0 to 40 g/l

Probe

 

HI 76407/4 polarographic D.O. probe

Printer

 

Low-power impact type belt using 38mm plain paper

Printing Intervals

 

1,2,5,10,15,30,60,120 & 180 minutes

Battery Type / Life

 

4 x 1.5 volt AA, Auto-off after 4 hrs/ Power socket for 12 VDC supply

Environment

 

32 to 122F (0 to 50C)

Dimensions

 

8.7 x 3.2 x 2.6" (220 x 82 x 66mm)

Weight

 

18 oz.(510 g ) KIT: 3.1 lbs (1.4 Kg)

 

 

 

Dissolved Oxygen Meters for the lab bench: HI 2400

 

 

Hanna Instruments Bench top laboratory dissolved oxygen (DO) meterExtended Range Bench Dissolved Oxygen Meter

  • Direct measurements in ppm or %
  • Logging of up to 8000 samples divided into 99 lots
  • Automatic calibration for D.O. and temperature in seconds with automatic value recognition

For Dissolved Oxygen measurements, HANNA instruments presents the new HI 2400, an essential instrument for testing pharmaceutical and food products, as well as monitoring in water treatment plants. The user can choose to display D.O. readings in mg/L O2 or % of saturation. This meter can be used in any laboratory and for any type of water, as it allows measurement compensation both for altitude and salinity factors. The automatic logging interval can be set to perform analysis and store data into the non-volatile internal memory. All logged data can be downloaded to your PC through an RS232 serial port. Memory can store up to 8000 samples. HI 2400 features an automatic calibration procedure, at 1 or 2 points (at 0 and 100% of O2 saturation). The probe supplied with the meter is provided with a polarographic sensor, which measures the current generated by the reaction of O2 with Ag.

HI 2400 is supplied complete with HI 76407/2 DO probe with 2 m (6.6') cable, 2 spare membranes, HI 7041S electrolyte solution (30 mL), 12 Vdc power adapter and instructions.

 

 

 

 

Available Accessories:

HI 7040M

|

Zero oxygen solution (230 mL)

HI 7040L

|

Zero oxygen solution (500 mL)

HI 710005

|

110V to 12VDC adapter

HI 710006

|

220V to 12VDC adapter

HI 76407/10

|

D.O. probe with 10 m (33') cable

HI 76407/20

|

D.O. probe with 20 m (67') cable

HI 76407A/P

|

Pack of 5 replacement membranes

HI 92000

|

Windows compatible software

HI 920010

|

PC connection cable

 

 

 

Specifications:

 

 

Range

 

0.00 to 45.00 mg/L O2; 0.0 to 300.0 % Saturation O2; 0.0 to 50.0 % Saturation C

Resolution

 

0.01 mg/L O2; 0.1 % Saturation

Accuracy (@20C/68F)

 

1.5% of full scale mg/L O2; 0.5 C

Typical EMC Deviation

 

1.5% of full scale mg/L O2; 0.5 C

Calibration

 

Automatic single or double point at 0% and 100% (in air) mg/L O2; Automatic single or double point at 0.0C and 50.0C

Altitude Compensation

 

0 to 1,900 m (6,230') with 100 m resolution

Salinity Compensation

 

0 to 40 g/L with 1 g/L resolution

Temp. Compensation

 

32 to 122F (0.0 to 50.0C)

Probe

 

HI 76407/2 with 6.6' (2 m) cable

Logging Interval

 

1, 15, 30 seconds or 1, 2, 5, 15, 30, 60, 120 & 180 minutes

Computer Interface

 

RS 232C (opto-isolated)

Battery Type / Life

 

12VDC (CSA, UL & CE approved)

Environment

 

32 to 122F (0 to 50C); RH 95%

Dimensions

 

9.1 x 6.7 x 2.7" (230 x 170 x 70 mm)

Weight

 

2.2 lb (1 kg)

 

 

                   

 

                 

     

 

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Last modified: 29-Oct-2008