Xylem WS750 WASTEWATER/STORMWATER SAMPLER - Manual (Page 7)

Global Water
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more detail later in the section titled “External Trigger Mode”. Refer to the
Specifications section for details about the input pulse requirements.
8. Pulse Out: These outputs send a pulse to an optional recording or
monitoring device each time the corresponding pump starts, allowing the
time of the sample event to be recorded. Refer to the Specifications
section for details about the output pulse.
9. Status: This red LED indicates the status of the sampler. While the
sampler is waiting to be triggered, the light remains off. Once triggered,
the LED will blink once every two seconds while the Delay or Interval
timers are running and while the pumps are operating. The LED remains
lit constantly when both sample bottles are full or if the switches are not
plugged in.
10. Power: This turns the power to the sampler on and off. Turning the
switch off for one second resets all functions and timers.
11. Battery: Connect the battery here using the supplied battery cable.
12. Water Sensor: When an optional water sensor is plugged into this jack,
sampling will not begin until the presence of water is detected (the Rain
Sensor must also detect water). If this sensor input is not being used,
plug one of the two shorting plugs supplied with the sampler into this jack.
This input has no affect when triggering the sampler with the Trigger
Inputs in External Trigger mode.
13. Rain Sensor: When an optional water sensor is plugged into this jack,
sampling will not begin until the presence of water is detected, usually in a
rain gauge (the Water Sensor must also detect water). If this sensor input
is not being used, plug one of the two shorting plugs supplied with the
sampler into this jack. This input has no affect when triggering the
sampler with the Trigger Inputs in External Trigger mode. This input can
also be used to take individual composite samples and is described in
detail later in the section titled “External Trigger Mode”.
14. Bottle Switches: The sample bottle float switches plug into the control
panel here. For sampling to occur, a float switch must be plugged in and
the bottle must not be full. If the Status LED remains lit all the time, check
these connections.
15. Test Pump: Pressing one of these buttons tests the operation of the
corresponding pump. These buttons will test the pumps operation
regardless of whether a bottle switch is plugged in or not. The pump runs
forward for as long as the button is held down, then reverses for an equal
amount of time, or 15 seconds, which ever is less.