Hach LDO User Manual

3
Table of Contents
Section 1 Specifications......................................................................................................................................... 5
Section 2 General Information ............................................................................................................................... 7
2.1 Safety Information ............................................................................................................................................... 7
2.1.1 Use of Hazard Information......................................................................................................................... 7
2.1.2 Precautionary Labels................................................................................................................................. 7
2.2 General Sensor Information................................................................................................................................ 8
2.3 Theory of Operation............................................................................................................................................ 8
Section 3 Installation .............................................................................................................................................. 9
3.1 Connecting/Wiring the Sensor to the sc100 Controller ....................................................................................... 9
3.1.1 Connecting the sc Sensor in a Non-hazardous Location .......................................................................... 9
3.1.1.1 Attaching a sc Sensor with a Quick-connect Fitting......................................................................... 9
3.1.1.2 Hard-wiring a sc Sensor to the Controller ...................................................................................... 10
3.1.2 Connecting the sc Sensor to a Controller in a Hazardous Location ........................................................ 12
3.1.2.1 Attaching a sc Sensor with a Quick-connect Fitting in a Hazardous Location ............................... 12
3.2 Connecting the Sensor to the sc1000............................................................................................................... 13
3.2.1 Connecting the Sensor using the Quick-connect Fittings........................................................................ 13
3.3 Installing the Sensor in the Sample Stream...................................................................................................... 13
Section 4 User Interface and Navigation ............................................................................................................ 15
4.1 Using the sc100 Controller................................................................................................................................ 15
4.1.1 Controller Display Features ..................................................................................................................... 16
4.1.2 Important Key Presses ............................................................................................................................ 16
4.2 Using the sc1000 Controller.............................................................................................................................. 17
4.2.1 Display Features...................................................................................................................................... 17
4.2.1.1 Using the Pop-up Toolbar .............................................................................................................. 17
4.2.1.2 Using the Menu Windows .............................................................................................................. 17
4.2.1.3 Navigating the Menu Windows....................................................................................................... 18
Section 5 Operation .............................................................................................................................................. 21
5.1 Sensor Setup .................................................................................................................................................... 21
5.2 Sensor Data Logging ........................................................................................................................................ 21
5.3 Sensor Diagnostics Menu ................................................................................................................................. 21
5.4 Sensor Setup Menu .......................................................................................................................................... 22
5.5 Pressure and Elevation ..................................................................................................................................... 23
5.5.1 Selecting Atmospheric Pressure ............................................................................................................. 23
5.6 Calibration......................................................................................................................................................... 24
5.6.1 Calibration in Air ...................................................................................................................................... 24
5.6.2 Sample Cal—Calibration by Comparison to a Winkler Titration .............................................................. 25
5.6.3 Sample Cal—Calibration by Comparison to a Hand-held DO Analyzer .................................................. 25
5.6.4 Concurrent Calibration of Two Sensors ................................................................................................... 26
Section 6 Maintenance ......................................................................................................................................... 27
6.1 Maintenance Schedule ..................................................................................................................................... 27
6.2 Cleaning the Sensor ......................................................................................................................................... 27
Section 7 Troubleshooting ................................................................................................................................... 29
7.1 Error Codes....................................................................................................................................................... 29
7.2 Warnings........................................................................................................................................................... 29

Hach LDO Specifications

General

Storage Temperature	-20 to 60 °C (-4 to 140 °F)
IP Rating	IP68
Range	0 to 20 mg/L
Accuracy	±0.1 mg/L or ±1% of reading, whichever is greater
Resolution	0.01 mg/L
Measurement Range	0 to 20 mg/L
Description	Luminescent Dissolved Oxygen (LDO) sensor
Response time	t95 < 30 seconds
Battery Life	N/A (powered externally)