Hach-Lange Sigma SD900 Portable - Manual (Page 15)

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General Information
2.2 Sampler overview
DANGER
This sampler is designed for collection of aqueous samples
only. Non-aqueous samples may damage the equipment and
could result in fire and chemical hazards.
The SD900 sampler automatically collects and preserves liquid
samples. The sampler is suitable for collection of conventional and
toxic pollutants and suspended solids.
2.2.1 Sampler components
The sampler consists of three main sections ( Figure 3 ). The center
section contains the controller. Use the controller to program the
sampler and for manual operation. The controller contains the
following components:
• Pump—operates in the forward or reverse direction to
collect a sample, rinse and purge the intake tube.
• Liquid sensor—allows the sampler to dispense accurate
sample volumes into the sample bottle(s). Can be
calibrated to specific sample conditions in the field.
• Cable connectors—for power, flow meter or
communication.
• Desiccant—absorbs internal moisture in the controller and
prevents corrosion.
Figure 3 Sampler components
1 Bottle/base section 3 Power source 5 Controller
2 Center section 4 Top cover