Sensaphone CELL682 - Manual (Page 35)

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Chapter 4: Input programming
If a dry contact changes from its Normal state to the opposite state for the dura-
tion of the programmed recognition time, the input will go into alarm. Note that
it must be a continuous change to be recognized as an alarm. Once an alarm trips,
the unit will begin its notification 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
20 characters.
INpUT eNaBLe/dIsaBLe
A channel must be Enabled for the input to be read by the Cell682. When a chan-
nel 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 pre-
set 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 to 100 the Pulse Count value now becomes the
actual total number of gallons measured by the gauge. The range of values for the
Pulse Count Multiplier is 1 to 65,535.
aLarm eNaBLe/dIsaBLe
The Enable Alarms checkbox activates the alarm processing functions for the
selected channel. When the input exceeds the the programmed alarm limits and
exceeds the programmed recognition time the notification process begins.