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Optional device installation
7.4 Dissolved oxygen probe
7.4.1 Dissolved oxygen probe connection
This connection is for interfacing the optional D.O. probe to the
D.O./Conductivity Pre-Amp (3369).
Strain relief recommendation
It is recommended that a strain relief be used to protect the cable/probe junction during
application where the sensor will be thrown or tossed
into liquid.
7.4.2 Dissolved oxygen probe programming
1.
From the Main Menu, select
OPTIONS, ADVANCED OPTIONS, DATALOG.
2.
Highlight Select Inputs using the
up
and
down
keys, then press
SELECT
.
3.
Highlight D.O. using the
up
and
down
keys, then press the
SELECT
.
4.
Press
CHANGE CHOICE
to cycle between Logged and Not Logged, then press
ACCEPT
.
5.
Enter a logging interval, then press
ACCEPT
. Valid logging intervals are shown on the
status bar.
6.
Press
CHANGE CHOICE
to select the appropriate units (ppm, ppb, mg/L, sat). Press
ACCEPT
to continue.
7.
Select another channel to configure or press
RETURN
to back up one step or press
MAIN MENU
to return to the Main Menu.
7.4.3 Dissolved oxygen probe temperature programming
1.
From the Main Menu, select
OPTIONS, ADVANCED OPTIONS, DATALOG
2.
Highlight Select Inputs using the
up
and
down
keys, then press
SELECT
.
3.
Highlight D.O. Temp. using the
up
and
down
keys, then press
SELECT
.
4.
Press
CHANGE CHOICE
to cycle between Logged and Not Logged, then press
ACCEPT
.
5.
Enter a logging interval, then press
ACCEPT
. Valid logging intervals are shown on the
status bar along the bottom edge of the display.
6.
Press
CHANGE CHOICE
to select the temperature units (°C, °F). Press
ACCEPT
.
7.4.4 Dissolved oxygen probe calibration
1.
Connect a suitable power supply to the sampler.
2.
Power up the unit by pressing the
ON
button.
3.
From the Main Menu, select
OPTIONS, ADVANCED OPTIONS, CALIBRATION, DO.
Table 10 D.O. connections (J-20)
Pin
Signal Description
Wire Color
A
DO - (neg)
Green
B
DO + (pos)
Red
C
Thermister
Black
D
Thermister
Yellow
Goodnal STP ST041 Pre Treatment (Sigma 900 MAX All Weather Refrigerated Sampler) Vendor Manual
Q-Pulse Id VM373
Active 29/10/2013
Page 85 of 122