Oakton PD 300 Instruction Manual

Contents

Oakton PD 300 Instruction Manual Manual pdf 42 page image

Instruction Manual PD 3008.6 P1.0 (dPr): Dissolved Oxygen ParametersThis sub group is available in % saturation and mg/L (ppm) mode and lets you adjust thebarometric pressure and salinity (% saturation mode only).8.6.1 P1.1 Pressure adjustment modeBarometric pressure is vital to correct dissolved oxygen measurements. You need to enter thecorrect barometric pressure of the area you are measuring. This mode lets you perform twofunctions:• 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 subgroups until you view parameter “dPr” in theupper display.4. Press the ENTER key twice. The upper display shows either Hg or PA and the lowerdisplay 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 upperdisplay shows the barometric pressure and the lower display shows the units selected inStep 3.7. Press the ▲ or ▼ keys to adjust the barometric pressure. The pressure adjustmentrange 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 [salinityadjustment appears in mg/L (ppm) measurement mode only]. If instead you want toreturn to measurement mode, press CAL/MEAS twice.37