EUTECH INSTRUMENTS CYBERSCAN DO 5000 DO METER Manual de instrucciones Pagina 42

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Instruction Manual PD 300
8.6 P1.0 (dPr): Dissolved Oxygen Parameters
This sub group is available in % saturation and mg/L (ppm) mode and lets you adjust the
barometric pressure and salinity (% saturation mode only).
8.6.1 P1.1 Pressure adjustment mode
Barometric pressure is vital to correct dissolved oxygen measurements. You need to enter the
correct barometric pressure of the area you are measuring. This mode lets you perform two
functions:
Select either mm Hg or Pascal barometric pressure units.
Adjust the barometric pressure. See Addendum 2 on page 67 for a
“Pressure vs Altitude” table.
From measurement mode:
1. Press the MODE key to select DO measurement mode.
2. Press the SETUP key to enter SETUP mode.
3. Press the or keys to scroll through su/jointfilesconvert/267593/bgroups until you view parameter “dPr” in the
upper display.
4. Press the ENTER key twice. The upper display shows either Hg or PA and the lower
display shows bAr. See figure on next page.
5. Press the or keys to toggle between mm Hg and Pascal units.
6. Press the ENTER key to confirm selection and move to the next screen. The upper
display shows the barometric pressure and the lower display shows the units selected in
Step 3.
7. Press the or keys to adjust the barometric pressure. The pressure adjustment
range is 500 to 1499 mm Hg (66.6 to 199.9 kPa).
8. Press the ENTER key to confirm selection and move to Step 4 on page 39 [salinity
adjustment appears in mg/L (ppm) measurement mode only]. If instead you want to
return to measurement mode, press CAL/MEAS twice.
37
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