Chapter 1 Introduction
Accura 3300E User Guide
Page 14
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2015 Rootech Inc. All Rights Reserved
Oscilloscope
2
Demand trend
2
Event
Fuse Fail, Phase Open, Blackout detection
Over-temperature detection
Number of Event Log
Up to 50
Temperature
Temperature of Accura 3300E
8
1EA
Communication
RS-485[1,200 - 115,200bps, Modbus RTU protocol] 1 port[Ta, Tb]
General
UL certification
UL 61010-1
CE certification
EN 61326-1, EN 61326-2-1
KC certification
KN22, KN24
AC Power
AC 85 - 265V
DC Power
DC 100 - 300V
1
Calculates the prediction demand power supposing that the power maintains as the thermal value of present
point in the demand subinterval for remaining demand subinterval.
2
The data are available only via communication[not displayed on the LCD screen].
3
Accura 3300E provides the maximum, minimum, average values of voltage, current and power via
communication. As this includes the data of measurement parameter which changes in a moment, this
performs accurate trend-analysis for voltage, current and power quality.
4
THD[Total Harmonic Distortion].
Voltage THD:
√∑
𝑉
𝑘
2
31
𝑘=2
𝑉
1
, Current THD:
√∑
𝐼
𝑘
2
31
𝑘=2
𝐼
1
5
TDD[Total Demand Distortion] Current TDD:
√∑
𝐼
𝑘
2
31
𝑘=2
𝐼
𝐿
where
L
I
can be selected from the rated current[default] and peak demand current [only via
communication].
6
Crest factor:
𝐼
𝑝𝑒𝑎𝑘
𝐼
𝑟𝑚𝑠
,
7
K-factor:
∑
(𝑘 𝐼
𝑘
)
2
31
𝑘=1
∑
𝐼
𝑘
2
31
𝑘=1
8
It is not for fire monitoring but for reference only(A temperature sensor is located on the side of Accura 3300E].
Summary of Contents for ACCURA 3300E
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