AC/DC Current transducer AHR-B5
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 RMS 0-5 V voltage output.
I
PN
= 500 .. 2000 A
Electrical data
Primary nominal
DC & AC current
I
PN
(At rms)
500
800
1000
1500
2000
Primary AC current
max. peak value
1)
I
P
(A)
2000
2500
2000
2500
3000
Output voltage
(Analog)
V
OUT
(VDC)
0-5
0-5
0-5
0-5
0-5
Type
Features
•
DC + distorted AC waveform currents
measurement
•
True RMS output
•
Busbar or panel mounting
•
Split core type
•
Insulated plastic case recognized
according to UL94-V0.
AHR 500 B5
AHR 800 B5
AHR 1000 B5
AHR 1500 B5
AHR 2000 B5
R
L
V
C
I
C
V
SL
Î
P
Load resistance
Supply voltage
Current Consumption
Output voltage limitation
Overload capability (Ampere Turns)
≥
10
kΩ
+ 20 .. 50 V DC
35
mA
<7
V
30000
At
Advantages
•
High isolation between primary and
secondary circuits
•
Eliminates insertion loss
•
Easy installation.
Performance data
ε
X
L
V
OE
TCV
OE
TCV
OUT
t
r
BW
Accuracy @
I
PN
,
T
A
= 25°C (excluding offset)
Linearity error (1% of
I
PN
.. ±
I
PN
)
Electrical offset voltage,
T
A
= 25°C
Temperature coefficient of
V
OE
(0 .. + 60 °C)
(- 40 .. + 70 °C)
Temperature coefficient of
V
OUT
(% of reading)
Response time to 90% of
I
PN
step
Frequency bandwidth (±1 dB)
< ± 1 % of
I
PN
< ± 1.0 % of
I
PN
< ± 1.0 % of
I
PN
± 2.0
mV/K
± 4.0
mV/K
± 0.15
%/K
< 150
ms
DC, 20 .. 6000Hz
Applications
•
AC power supplies or Motors:
True RMS current sensing - the most
accurate way to monitor power supply
or motor input power
•
VFD Controlled Loads:
VFD output current monitoring to
indicate how the motor and the
attached load are operating
•
SCRs or Switch-mode Rectifiers:
Accurate measurement of output
current
•
Renewable Energy Installations or
Backup Batteries:
Continuous condition minitoring
General data
T
A
T
S
m
IPxx
Ambient operating temperature
Ambient storage temperature
Mass
Protection degree
- 40 .. + 70
- 40 .. + 85
650
IP20
°C
°C
g
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 I
PN
,
whereas the output is limited by the above specified output limitation.
allowing automatic failure detection/
anticipation.
Application domain
•
Energy and Automation
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LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
www.lem.com