mpec SA380-IT, Руководство пользователя

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Quantity: Rounding: Capping:
Monitored Circuit Voltage U
m
to the nearest 1 V 160 V
Resistance to Earth R R
B N
down to the nearest 1 k 5 M
Earth Loop Resistance
R
E
to the nearest 0.5 1 k
It is the rounded and capped data is displayed on the web based user interface.
Sampling
Data is not continuously sampled and sent the EAMS as this would produce a vast amount of data.
The SA380-IT employs a sampling scheme that rationalises the amount of data buffered for transmission by employing the following
sampling rules.
State U
M
R
N
R
B
R
E
Status Temp Time GSM
Signal Notes Factory
Default
Setting
At start-up
a
l
l
c
i
r
c
u
i
t
s a
l
l
c
i
r
c
u
i
t
s a
l
l
c
i
r
c
u
i
t
s
Sample
acquired as
soon as time
is set NA
snapshot
time elapsed
since last
acquisition
a
l
l
c
i
r
c
u
i
t
s a
l
l
c
i
r
c
u
i
t
s a
l
l
c
i
r
c
u
i
t
s
snapshot
time is
configurable.
The snapshot
timer runs
"per channel"
1 hour
User clears
"comms
queue"
a
l
l
c
i
r
c
u
i
t
s a
l
l
c
i
r
c
u
i
t
s a
l
l
c
i
r
c
u
i
t
s
NA
% change in
Um
a
f
f
e
c
t
e
d
c
i
r
c
u
i
t
o
n
l
y a
f
f
e
c
t
e
d
c
i
r
c
u
i
t
o
n
l
y a
f
f
e
c
t
e
d
c
i
r
c
u
i
t
o
n
l
y
% change is
configurable 5%