Use 4–20 ma input for the flow source, Review or modify program settings, Save or load programs – Hach-Lange SD900 Refrigerated Sampler, SD900 AWRS User Manual User Manual

Page 24: 4–20 ma input—refer to

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Option

Description

Time

The maximum time between samples (0:01–999:00). The timer starts again after each
sample is collected.

Take first sample

The program starts immediately or after the first time interval.

Use 4–20 mA input for the flow source

1. Select or enter the values for each option.

Option

Description

Select unit

Selects the flow units to use.

Map 4 mA input

Enter the flow rate that would agree with the 4 mA input.

Map 20 mA input

Enter the flow rate that would agree with the 20 mA input.

Take sample every Enter the total flow after which the sample has to be drawn.

Override time

Select enable to push a sample to be collected if the flow volume is unusually low.

Time

The maximum time between samples (0:01–999:00). The timer starts again after each
sample is collected.

Sample volume

Enter the volume to be collected per sample. If bottles/sample mode is selected, each
bottle receives a full sample volume (100–10,000 mL). This option is skipped if variable
volume is selected.

Review or modify program settings

To review or change Individual settings for an existing sampling program:

1. Push MENU.
2. Go to PROGRAM SETUP. Select one of the options.

Option

Description

Modify selected

Change any of the program settings.

Review

Review the program settings.

Save or load programs

Up to three sampling programs can be saved as presets for later use. If any changes are made to a
preset program after it is loaded, the program must be saved again to keep the changes.

1. Push MENU.
2. Go to PROGRAM SETUP>PRESETS.
3. Select one of the preset numbers (P1, P2 or P3).

Note: If a program is already stored, the site ID for that program is shown to the right of the preset number. If
no program is stored, the preset field is empty.

4. Select one of the options.

Option

Description

STORE CURRENT

Store the current program as a preset.

LOAD PROGRAM

Open the selected preset program.

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