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Dissolved Oxygen Meters

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Oxygen gets into water via the air, bubbles, or photosynthetic ... Recalls dates. DO Meters $519. Logs data. Retains calibration information. Includes software ... – PowerPoint PPT presentation

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Title: Dissolved Oxygen Meters


1
Dissolved Oxygen Meters
  • Anne Middleton
  • ESM 288
  • February 29, 2008

2
Dissolved Oxygen
  • DO Oxygen in aqueous solution (Oaq)
  • Oxygen gets into water via the air, bubbles, or
    photosynthetic activities
  • Oxygen is important for all aquatic biological
    processes

Sourcehttp//www.bbc.co.uk/schools/gcsebitesize/b
iology/livingthingsenvironment/3impactofhumansrev5
.shtml
3
DO Testing
  • Can be performed on-site for best results
  • Most DO meters can test other parameters as well
    (T, pH, etc.)
  • Most are similar probe with hand-held monitor

4
DO Meters
  • Range in price from 250 to 500, depending
    upon of parameters
  • Probe is usually the most expensive part
  • Example DO pen 246
  • Waterproof
  • Battery-operated

Sourcehttp//www.technika.com/navpage/do.htm?gcli
dCNDV6JrP55ECFSMZawodFWtIeA
5
DO Meters
  • DO meter kit
  • 284
  • Also measures T, salinity, altitude
  • Recalls dates

6
DO Meters
  • 519
  • Logs data
  • Retains calibration information
  • Includes software
  • Hooks to computer
  • LCD screen

7
DO Meters
  • 1,400
  • Logs data
  • Retains calibration information
  • Includes software
  • Hooks to computer
  • O range0-19.99mg/L
  • Accurate /-.02

Source http//www.aquaticeco.com/index.cfm/fuseac
tion/product.detail/iid/775/cid/123
8
DO Meters
  • 451 for replacement probes and cables
  • Membranes are fragile leave them wet (in
    electrolyte solution if possible)

9
DO Testing for 228?
  • No need for LCD
  • Mid-price range will suffice
  • Computer hook-up? No.
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