ADS Environmental Services Spider QR 775010 A0 - Manual (Page 14)

ADS Environmental Services ADS Spider User Manual
Page 12
0 - 2.5V sensors
0
–
5V sensors
0
–
10V sensors
NOTE: All analog signals share a common ground.
3.
“
COUNTER
”
Counter inputs ensure the count increments each time the
terminals are shorted. Frequencies up to 10Hz are
supported. The counter will roll-over from 99,999 to 0.
4.
“
EVENT
”
Event inputs are used to record occurrences of pulses. A
pulse is generated by temporarily shorting the input terminals
together. Minimum acceptable pulse width is 100 ms. Event
inputs are suitable for monitoring pulses that occur less
frequently than once every 30 seconds. Each time an event
occurs, the Spider logs the time of its occurrence as well as
the total number of events. The total will roll-over from 99,999
to 0.
NOTE: Battery life will be dramatically reduced if a higher
frequency signal is connected to an event input.
5.
“
DAILY TOTAL
”
Daily total inputs are identical to the
“
EVENT
”
inputs
described above, except that the event total counter is reset
to 0 every midnight.
6.
“
UTILITY METER
”
This type of input records the number of pulses in a logging
period. It is typically used to record readings from water,
electricity, and gas meters.
7.
“
DISABLED
”
This mode disables the input. The input is removed from all
reports and menus.
The user can tailor the system by assigning application specific input
names. For example, Input 1 may be called
“
PUMP 3 OK
”
.