Xylem WS755 IMPROVED WASTEWATER/STORMWATER SAMPLER - Manual (Page 6)

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The Control Panel
1. Pump One.
2. Pump Two.
3. 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
each pump is delayed, except as described later in the section titled
“External Trigger Mode”.
4. 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”.
5. Pump 1 Sample Size: Sets the size for a single composite sample with
pump one. 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.
6. Pump 2 Sample Size: Sets the sample size for pump two and works the
same as Pump 1 Sample Size described above.
7. Trigger In: These inputs work in “External Trigger” mode only, when
selected by the Sample Interval control. A signal from an external device
will cause a single sample to be taken by the corresponding pump
according to its Size control. The External Trigger mode is described in