参数资料
型号: CAS 15-NP
厂商: LEM USA Inc
文件页数: 13/16页
文件大小: 0K
描述: SENSOR CURRENT 15A 5V MOD
产品培训模块: CAS Modules Overview
产品目录绘图: CAS(R) Series Side
特色产品: CAS Series
标准包装: 50
系列: CAS
电流 - 感应: 15A
精确度: ±0.8%
灵敏度: 41.67mV/A
传感器类型: 磁通量闸门
电源电压: 4.75 V ~ 5.25 V
输出: 0 ~ 5 VDC
频率: 300kHz
响应时间: 300ns
电极标记: 双向
工作温度: -40°C ~ 85°C
封装/外壳: 模块
包装: 管件
产品目录页面: 2809 (CN2011-ZH PDF)
其它名称: 398-1088-5
CAS series
Performance parameters definition (continued)
V ( t ) + V ( t )
V =
2
Electricaloffset
The electrical offset voltage V OE can either be measured when
the ferro-magnetic parts of the transducer are:
● completely demagnetized, which is difficult to realize,
● or in a known magnetization state, like in the current cycle
shown in figure 30.
Using the current cycle shown in figure 30, the electrical offset
is:
OUT 1 OUT 2
OE
Response and reaction times
The response time tr and the reaction time tra are shown in
figure 31.
Both depend on the primary current di/dt. They are measured
at nominal ampere-turns.
I
100 %
90 %
V OUT
I p
The temperature variation V OT of the electrical offset voltage
V OE is the variation of the electrical offset from 25°C to the
considered temperature:
V OT ( T ) = V OE ( T ) ? V OE ( 25 ° C )
10 %
t ra
t r
t
● the sensitivity error ε G
Note:thetransducerhastobedemagnetizedpriortothe
application of the current cycle (for example with a
demagnetization tunnel).
Overall accuracy
The overall accuracy at 25°C X G is the error in the - I PN .. + I PN
range, relative to the rated value I PN .
It includes:
● the electrical offset V OE
● the linearity error ε L (to I PN )
The magnetic offset is part of the overall accuracy. It is
taken into account in the linearity error figure provided the
transducer has not been magnetized by a current higher than
I PN .
Figure 31: Response time t r and reaction time t ra
Figure 32: Test connection
Page 13/16
8March2012/version 7
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice
www.lem.com
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