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AHR-B420 PDF预览

AHR-B420

更新时间: 2022-04-23 23:00:11
品牌 Logo 应用领域
莱姆 - LEM 传感器
页数 文件大小 规格书
3页 359K
描述
AC/DC Current transducer

AHR-B420 数据手册

 浏览型号AHR-B420的Datasheet PDF文件第2页浏览型号AHR-B420的Datasheet PDF文件第3页 
AC/DC Current transducer AHR-B420 IPN = 500 .. 2000 A  
The transducer for the electronic measurement of DC & distorted AC  
waveform currents, with galvanic isolation between the primary circuit  
(power) and the secondary circuit (measurement).  
True r.m.s. 4-20 mA current output.  
Electrical data  
Features  
Primarynominal  
DC & AC current  
IPN (At rms)  
Primary AC current  
max. peak value 1)  
IP (A)  
Output currentt  
IOUT (mA DC)  
Type  
· DC + distorted AC waveform currents  
measurement  
500  
800  
1000  
1500  
2000  
2000  
2500  
2000  
2500  
3000  
4-20  
4-20  
4-20  
4-20  
4-20  
AHR 500 B420  
AHR 800 B420  
AHR 1000 B420  
AHR 1500 B420  
AHR 2000 B420  
· True r.m.s. output  
· Busbar or panel mounting  
· Split core type  
· Insulated plastic case recognized  
according to UL94-V0.  
RL  
VC  
IC  
Load resistance  
Supply voltage  
Current consumption  
< 300  
W
+ 20 .. 50 V DC  
30 mA + IOUT  
Advantages  
ISL  
ÎP  
Output current limitation  
Overload capability (Ampere Turns)  
< 25  
30000  
mA  
At  
· High isolation between primary and  
secondary circuits  
· Eliminates insertion loss  
· Easy installation.  
Performance data  
X
Accuracy @ IPN, TA = 25°C (excluding offset)  
Linearity error (1% of IPN .. ± IPN)  
Electrical offset current, TA = 25°C  
Temperature coefficient of IOE ( 0 .. + 60 °C)  
(- 40..+ 70 °C)  
< ± 1 % of IPN  
< ± 1.0 % of IPN  
4 mA <±1.0 % of IPN  
e
L
Applications  
IOE  
TCIOE  
± 3.2  
± 6.4  
± 0.15  
< 150  
mA/K  
mA/K  
%/K  
m s  
· AC power supplies or Motors:  
True r.m.s. current sensing - the most  
accurate way to monitor power supply  
or motor input power  
TCG  
tr  
BW  
Temperature coefficient of G (% of reading)  
Response time to 90% of IPN step  
Frequency bandwidth (±1 dB)  
DC 20 .. 6000Hz  
· VFD Controlled Loads:  
General data  
VFD output current monitoring to  
indicate how the motor and the  
attached load are operating  
TA  
TS  
m
Ambient operating temperature  
Ambient storage temperature  
Mass  
- 40 .. + 70 °C  
- 40 .. + 85 °C  
260  
g
· SCRs or Switch-mode Rectifiers:  
Accurate measurement of output  
current  
IPxx  
Protection degree  
IP20  
· Renewable Energy Installations or  
Backup Batteries:  
Continuous condition minitoring  
allowing automatic failure detection/  
anticipation.  
Note : 1) The max. peak AC current is the highest peak level of the primary signal that is  
taken into account for accurate true r.m.s. calculation. Yet the device is designed  
for maximum continuous true r.m.s. value equal to IPN, whereas the output is limited  
by the above specified output limitation.  
Page 1/3  
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.  
061012/4  
www.lem.com  

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