Xylem WS700R REFRIGERATED WASTEWATER SAMPLER User Manual download pdf (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.

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Xylem WS700R REFRIGERATED WASTEWATER SAMPLER User Manual Page 6