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HydroTech ZS Consulting Rev 7 (2023)
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Water Quality Monitoring
Equipment
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This app
was created by HydroTech to provide our customers with a quick access to
calculations and conversions that they use on a daily basis while calibrating
and maintaining their water quality monitoring equipment:
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Temperature: Always check the
temperature sensor against an NIST thermometer
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Oxygen Solubility: In order to
calibrate dissolved oxygen sensors to DO (mg/L), the end user needs to
determine the solubility of oxygen in the water first. Input the current
uncompensated barometric pressure (mmHg). Input current temperature reading
from the multiprobe thermometer (°C). Input the current SpConductivity value
of the water used for calibration (µs/cm). Click "Enter",
"Tab", "Go" or just click on the black field to display
the results
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pH Buffer Temp.Correction: All pH
buffers values are rated to 25 °C. When using a buffer that has a temperature
other than 25 °C, the end user needs to apply a correction to the buffer
value based on its current temperature. Select pH buffer 4,7 or 10 column.
Input the current buffer temperature (°C). Click "Enter",
"Tab", "Go" or just click on the black field to display
the results.
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pH Sensor Health: Input current pH
(mV) readings for each pH buffer. Click "Enter", "Tab",
"Go" or just click on the black field to display the results and
the health status for your pH sensor.
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ORP Zobell Temp. Correction: The
ORP Zobell solution value is rated at 25 °C. When using a Zobell solution
that has a temperature other than 25 °C, the end user needs to apply a
correction to the solution value based on its current temperature. Inpute the
Zobell solution value at 25 °C. Input the current Zobell solution temperature
(°C). Click "Enter", "Tab", "Go" or just click
on the black field to display the results.
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SpCond to Salinity Conversion:
Input the SpConductivity value (µs/cm). Click "Enter",
"Tab", "Go" or just click on the black field to display
the results. The Salinity conversion is based on USGS Water-Supply Paper 2311
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Salinity to Chloride Conversion:
Input the salinity value (ppt). Click "Enter", "Tab",
"Go" or just click on the black field to display the results.
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S4000 NTU Formazin Dilution: The
Formazin is the recommended standard for calibrating the turbidity sensor.
The 4000 (NTU) standard will need to be diluted to lower values by the end
user. Input the value of the standard needed (NTU). Input the total standard
volume needed (ml). Click "Enter", "Tab", "Go"
or just click on the black field to display the results.
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NO3 Dilution: Start with a 50 mg/l
NO3 standard. Input NO3 standard value needed (mg/l), Input Total standard
volume needed (ml). Click "Enter", "Tab", "Go"
or just click on the black field to display the results.
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TDG Percent: Input TDG% value
(mmHg). Input Barometric Pressure (mmHg). Click "Enter",
"Tab", "Go" or just click on the black field to display
the results.
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Actual B.P. (mmHg): When you obtain the Barometric Pressure
(B.P.) measurement from a weather station they usually report the corrected
B.P to sea level. You need to uncorrect that value based on your current
altitude (Actual B.P.). Input the corrected B.P. (mmHg) or (inHg). Input your
current altitude (f). Click "Enter", "Tab",
"Go" or just click on the black field to display the results.
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NO3-N to NO3: Input the N03 value
in mg/l-N. Click "Enter", "Tab", "Go" or just
click on the black field to display the converted value to NO3-N and vice
versa.
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http://www.hydrotechzs.com
Telephone: 512-846-2893
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Rev7- 2023
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Zak Sihalla
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