User Guide

Operating Manual alpha DO 1000
16
HOLD SETUP
760
pa
HOLD SETUPHOLD SETUP
pressed to adjust the Dissolved Oxygen value, you will see that the ‘offset’
value in its upper display also changes.
9. Press the ENTER key to accept the offset value. Note: The offset value is
reset during full calibration (See section 6).
10. Proceed to input Salinity values or return to Measurement mode by
pressing the ▲ and ▼ keys (escape) simultaneously.
7.2 Setting the Salinity Value
1. Enter Advanced set-up mode. Push the ENTER
key and scroll to Advanced Set-up security
code “22”. Push the ENTER key again.
2. Press the ▲ or ▼ keys to scroll until the upper
display shows OFS.
3. Press the ENTER key till the upper display
shows the “salinity value” in ppt, while the lower
display shows “SAL”. (This function is not available in the % mode and
this window is not displayed)
4. Press the ▲ or ▼ keys until the salinity value (between 0.0 ppt and 50.0
ppt) coincides with the correct salinity value.
5. Press the ENTER key to accept the Salinity value. The controller
automatically corrects for the final Dissolved Oxygen measurement.
6. Proceed to Section 7.3 to input the Pressure values or return to
Measurement mode by pressing the ▲ or ▼ keys (escape) simultaneously.
7.3 Setting the Pressure Value (mmHg or Pascal)
1. Enter Advanced set-up
mode. Push the ENTER
key and scroll to
Advanced Set-up
security code “22”.
Push the ENTER key
again.
2. Press the ▲ or ▼ keys to scroll
until the upper display shows OFS.
3. Press the ENTER key till the upper display shows
“Hg” and the lower display shows “bar”.
4. Press the ▲ or ▼ keys to select the units of
pressure: if in mmHg, upper display shows “Hg”
and lower display shows “bar”; or in Pascal, upper
display shows “Pa” and lower display shows “bar”.
5. Press the ENTER key to accept the units of measure for pressure. Use the
▲ or ▼ keys to scroll the correct pressure.
HOLD SETUP
ppt
0.0
sal