ADS Environmental Services Spider QR 775010 A0 - Manual (Page 85)

ADS Environmental Services ADS Spider User Manual
Page 83
Appendix A: ADS Spider Inputs
INPUT
TYPE
LOGGING
METHOD
LOGGING
RESOLUTION
ALARM
TRIGGER
CHOICES
TYPICAL
USE
COMMENT
SWITCH AUTOMATIC Within 5 seconds
of change
ON STATE
OFF STATE
Switches,
Status
indicators,
level (float)
switches
Must be
stable for a
minimum of 5
seconds.
Current state
recorded
every night at
midnight.
EVENT AUTOMATIC Within 5 seconds
of pulse
RATE OF
CHANGE
Tipping bucket
rain gauge,
any sensor
outputting less
than 1 pulse
per 30
seconds with a
minimum
pulse width of
0.1 second
Logs time of
pulse and
pulse counter
that rolls over
from 99,999
to 0. Current
count
recorded as
a special
event every
night at
midnight
DAILY
TOTAL
AUTOMATIC Within 5 seconds
of pulse
RATE OF
CHANGE
Tipping bucket
rain gauge,
any sensor
outputting less
than 1 pulse
per 30
seconds with a
minimum
pulse width of
0.1 second
Logs time of
pulse and
pulse counter
that rolls over
from 99,999
to 0. Current
count cleared
and recorded
as a special
event every
night at
midnight
COUNTER SIGNIFICANT
CHANGE
AS SET BY
USER
(SCAN PERIOD)
RATE OF
CHANGE
Pulse type
flow meters,
any sensor
with a low
frequency (<=
10Hz) output
Counter rolls
over from
99,999 to 0.
Current count
recorded
every night at
midnight.
UTILITY
METER
EVERY SCAN
PERIOD
AS SET BY
USER
(SCAN PERIOD)
RATE OF
CHANGE
Water,
electricity, or
gas meters.
Any pulse type
meter with a
low frequency
(<= 10Hz)
output
Each logged
data point is
the number
of pulse in
the previous
scan period.