Welcome Welcome Welcome Welcome Welcome
Welcome Welcome Welcome Welcome Welcome
    
Advanced Search  

  
Saturday, July 20th, 2019  
  
 
What's New
Promotions
 
Feedback
Mailing List
Polling

PS-M3D Multi Function 3D Rotator

Ideally sized for personal use, the Grant-bio PS-M3D multi-function rotator provides all that is required for thorough mixing in flasks, dishes, petri dishes and boxes: 3D rotation over the speed range 5 to 30rpm reciprocal 3D rotation from 1 to 360° vibration, from 1 to 6°, settable in a burst of 1 ... more

 WATER QUALITY
Home : Our Principals : GLOBAL WATER : WATER QUALITY

WQ401 DISSOLVED OXYGEN SENSORS

Dissolved oxygen sensors and dissolved oxygen recorder

FEATURES:

  • Fully encapsulated electronics
  • 4-20 mA output
  • Marine grade cable with strain relief
  • Stainless steel housing
  • Replaceable DO element

Product Description

Global Water’s dissolved oxygen sensor is a rugged reliable water oxygen level measuring device.  The dissolved oxygen sensors are attached to 25’ of marine grade cable, with lengths up to 500’ available upon request.  The dissolved oxygen sensor output is 4-20 mA with a three wire configuration.  The dissolved oxygen sensor's electronics are completely encapsulated in marine grade epoxy within a stainless steel housing (online version has 1” PVC x 8” pipe nipple, threaded both ends with cap).  The dissolved oxygen sensor uses a removable shield and dissolved oxygen element for easy maintenance.

Global Water's PC300 Dissolved Oxygen Controller to use the dissolved oxygen sensor's output to control pumps or alarms.  In addition Global Water offers GL500 dissolved oxygen recorder adds recording capabilities to the dissolved oxygen sensor.  The GL500 dissolved oxygen recorder connects to the dissolved oxygen sensor's 4-20mA output to record data.

Why Measure DO?
Dissolved oxygen (DO) is the amount of oxygen (O2) dissolved in water.  Dissolved oxygen provides one of the best indicators of the health of a water ecosystem, as oxygen is a necessary element for all forms of life, including aquatic life.  Oxygen enters water at the water surface through direct exchanges with the atmosphere.  It is also produced as a byproduct of plant and phytoplankton photosynthesis.  A decrease in dissolved oxygen levels is typically associated with an organic pollutant.  Dissolved oxygen is used by plants and animals for respiration, and by aerobic bacteria in the process of decomposition.  When organic matter (such as animal waste or improperly treated wastewater) enters a body of water, algae growth increases.  As the plant material dies off and decomposes, dissolved oxygen levels decrease.  If the water at the surface is not mixed with deeper water layers, the water’s dissolved oxygen levels can become stratified.  Dissolved oxygen levels can also vary according to the time of day, weather, and temperature.  Dissolved oxygen in water can range from 0-18 parts per million (ppm), but most natural water systems require 5-6 ppm to support a diverse population.  As dissolved oxygen levels drop below 5.0 mg/L, aquatic life is put under stress.  As dissolved oxygen levels decrease, pollution-intolerant organisms are replaced by pollution-tolerant worms and fly larvae.  If oxygen levels fall below 1-2 mg/L for a few hours, large fish kills can result.

Specifications

Output: 4-20 mA
Range: 0-100% Saturation, 0-8 ppm, temperature compensated to 25°C
Accuracy: ±0.5% of full scale
Maximum Pressure: 40 psi
Operating Voltage: 10-36 VDC
Current Draw: 15.5 mA plus sensor output
Warm Up Time: 10 seconds minimum
Operating Temperature: -40° to +55°C
Membrane: 0.001 FEP Teflon (standard)
Combined Error: 2% FS
Size of Probe:
     Standard: 11" L x 1-1/4" Diameter
     Online: 12” L x 2” Diameter (end cap)
Weight: Standard and Online 1 lb.

Dissolved Oxygen Sensor Options

WQ401 Dissolved Oxygen Sensor
WQ401-O Online Dissolved Oxygen Sensor
Comes with 1” NPT PVC housing.
WQEXC Extra Cable
Standard dissolved oxygen sensors include 25' of cable, but can be purchased with up to 500' of cable.
00-740 Dissolved Oxygen Sensor Electrode
Dissolved Oxygen electrodes should be replaced every six months and calibration should be done after every replacement.
 Printable Version (View: 2036 | Print: 671)

Next:
WQMS WATER QUALITY MONITORING SYSTEM
WQ201 pH SENSORS
WQ301 CONDUCTIVITY SENSORS

Previous:
WQ600 ORP SENSORS
WQ750 TURBIDITY SENSOR

Control
Remote Monitoring
Water Flow
Water Level
WATER QUALITY
Water Sampler
Weather
 
PT. PROLABMAS MURNI SWADAYA
Sentra Niaga Puri Indah Blok T3-10
Jakarta 11610 - Indonesia
Telp: +62 (21) 581 8000, 581 9000
Fax: +62 (21) 581 6999
 
Home  |  About Us  |  Products  |  Download  |  Support  |  Contact Us
 
   Back to top