Sensaphone CELL682 - Manual (Page 37)

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Chapter 4: Input programming
analog inpUts prograMMing
Figure 4: Analog Inputs Properties
CoNfIGUrING THe INpUT Name
The input Name is used to describe the condition being monitored. It can be up to
20 characters.
CoNfIGUrING THe INpUT Type
The input Type can be temperature 2.8K (°F/°C), 10K (°F/°C), or 4–20mA. Select
the type to match your sensor.
Note: Be sure to put the input jumper in the correct position.
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.
Select the type of analog input from the pulldown menu.
seTTING TaBLe LImITs
When 4–20mA is selected, you can enter table low and high values to correlate the
4mA and 20mA signals to actual values for your application. For example, suppose
you’re using a 4–20mA transducer to measure the depth of water in a 15 foot well.
Simply enter a Table Low value of 0 and a Table High value of 15 and the Cell682
will scale the input to read between 0 and 15 feet.
Programmable range
Table Low/High: -16,300 to 16,300
Default settings
Table Low value: 0
Table High value: 100
CaLIBraTIoN
To compensate for minor variances in sensor accuracy, an offset may be pro-
grammed for each analog input. For example, if the above input were sensing
temperature and was reading 3 degrees too low, then the calibration would be set
at 3 as shown above, to obtain an accurate reading. Only Analog-type inputs can
be calibrated.