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Skymetry WTU-14 Manual
nized as an alarm. Once an alarm trips, the unit will begin its noti-
fication sequence (unless you are online through the serial port, in
which case you can acknowledge the alarm directly and cancel the
notification process). Listed below are definitions for each of the
parameters for programming the dry contact inputs.
Configuring the Input Name
The input Name is used to describe the condition being monitored.
It can be up to 16 characters.
Input Enable/Disable
A channel must be Enabled for the input to be read by the WTU-14.
When a channel is enabled its status will appear on the status screen
and on the web page.
Configuring the Input Type
The input Type can be either Normally Open or Normally Closed.
When an input changes from its normal condition to the opposite
condition, the Pulse Count (if enabled) will increment, the Run
Timer (if enabled) will start running, and the Alarm Recognition
timer will start running (if alarms are enabled).
Configuring the Run Timer
The Run Timer can be used to track how long an input condition has
existed. This can be useful for monitoring pump or generator run
times. The value can be preset by clicking on the run time value on
the lower right part of the screen.
Configuring the Pulse Counter
The Pulse Counter can be used to track how many times a contact
closure has changed state. Other possibilities include: measuring
rainfall from a tipping bucket rain gauge or measuring liquid flow
from a pulsed output flow gauge. The maximum value of the Pulse
Counter (after the multiplier is applied) is 2 billion. Minimum Pulse
Width for Pulse Count: 50ms.
The Pulse Count Multiplier allows you to make each pulse equate to
a greater value. For example, suppose a flow gauge outputs a single
pulse for every 100 gallons. By setting the Pulse Count Multiplier
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