Hach 900 manual Table of Contents

		Table of Contents
Section 1 Specifications		5
Section 2 General Information		7
2.1	Instrument Description	7
2.2	Interface Connectors	7
	2.2.1 Receptacle Caps	7
2.3	Front Panel	8
	2.3.1 Keypad and Display	8
	2.3.2 Humidity Indicator	8
2.4	Safety Information	9
	2.4.1 Use of Hazard Information	10
	2.4.2 Precautionary Labels	10
	2.4.3 Hazardous Locations	10
	2.4.4 Confined Space Entry	11
	2.4.5 Definition of Confined Space	12
Section 3 Installation		13
3.1	Unpacking the Instrument	13
3.2	Selecting the Installation Site	13
3.3	Mounting the Sampler	14
3.4	Attaching the Intake Line	14
	3.4.1 Vinyl Intake Tubing	14
	3.4.2 Teflon-Lined Polyethylene Intake Line	14
3.5	Setting Up the Intake Line and Strainer	15
3.6	Choosing Bottles	15
3.7	Installing the Full Bottle Shut-Off	15
3.8	Power Connections	16
3.9	12 V dc	17
3.10 Auxiliary Connection		17
Section 4 Operation		21
4.1	Keypad and Key Functions	21
4.2	Tips and Techniques for Programming the Instrument	22
4.3	Setting the Time and Date	23
4.4	Bottle Setup Mode	23
4.5	Explanations of Program Messages	24
4.6	Data Logging	25
4.7	Manual Mode	25
	4.7.1 Manually Operating the Sample Pump	25
4.8	Measurements Triggered by Liquid Levels or Flow	26
4.9	Programming the Sampler for Level Control	27
4.10 Other Displayed Messages		27
4.11 Flow Proportional Operation		28
	4.11.1 How to Calculate Pulses/Counts	28

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8544TOC.fm	Table of Contents