Xylem WS700R REFRIGERATED WASTEWATER SAMPLER - Manual (Page 6)

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V. The Control Panel
1. Pump.
2. Start Delay: This setting delays sampling by a preset amount of
time. If no delay is desired, set the control to zero. Only the first
sample taken by the pump is delayed, except as described later in
the section titled “External Trigger Mode”.
3. Sample Interval: Sets the time interval between composite samples.
The “External Trigger” position is reserved for using the Trigger and
Rain Sensor inputs to initiate sampling as described later in the
section titled “External Trigger Mode”.
4. Sample Size: Sets the size for a single composite sample. The
sample size settings are approximate and apply to a head height of
four feet. The switch position marked “Full” causes the pump to work
as a discrete sampler, filling the bottle full in one sample. Note: In
the Full position, the sampler will shut off the pump after one hour,
even if the bottle is not full.
5. Trigger In: This input works in “External Trigger” mode only, as
selected by the Sample Interval control. A signal from an external
device will cause a single sample to be taken according to the Size
control. The External Trigger mode is described in more detail later
in the section titled “External Trigger Mode”. Refer to the
Specifications section for details about the input pulse requirements.