Cathay Tri-Tech. Inc CTR003C 사용자 설명서
9
getting event log, and maintenance control
command can be received and operated
command can be received and operated
4.3. Measurement function
Measurement function specification
Item
Specification
Remarks
CT
alternating
current
measurement function
Measure the single-phase or three-phase AC
power supply through the current CT sensor on
the general purpose secondary side of 0.01 mA
to 125 mA and calculate the effective current.
With the specified sampling period, time and
accumulated value can be saved on the SD
card.
power supply through the current CT sensor on
the general purpose secondary side of 0.01 mA
to 125 mA and calculate the effective current.
With the specified sampling period, time and
accumulated value can be saved on the SD
card.
It automatically convert the
resistance by range of signal
measurement
resistance by range of signal
measurement
4
～
20mA
direct
current
measurement function
Measure 4 to 20 mA DC current signal and
calculate by moving average count by setting.
It is possible to save the time and the
accumulated value to the SD card at the
specified sampling period.
calculate by moving average count by setting.
It is possible to save the time and the
accumulated value to the SD card at the
specified sampling period.
it doesn’t filter current
value if it is out of normal
range.
value if it is out of normal
range.
Pulse count measurement function
It is possible to count on the sampling cycle
that specifies the pulse signal and save the
time and count value to the SD card.
that specifies the pulse signal and save the
time and count value to the SD card.
Contact state monitoring function
When monitoring the on / off status of the
connected contact signal at all times and
detecting a state change (ON ⇒ OFF, OFF ⇒
ON), it is possible to save the occurrence time
and state value to the SD card.
connected contact signal at all times and
detecting a state change (ON ⇒ OFF, OFF ⇒
ON), it is possible to save the occurrence time
and state value to the SD card.