Hach Sigma 900 MAX - Dissolved Oxygen Probe; Dissolved Oxygen Probe Connection; Dissolved Oxygen Probe Programming; Dissolved Oxygen Probe Temperature Programming

85
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