LEM DHR-C420 Series Manual

Current Transducer DHR-C420
For the electronic measurement of currents: DC, AC, pulsed...,
with galvanic separation between the primary circuit and the secondary
circuit.
Electrical data
Type
DHR 100 C420
DHR 200 C420
DHR 300 C420
DHR 400 C420
I Output current
out
Load resistance
R
L
U Supply voltage
2)
C
I Current consumption
C
I Secondary current limit
S L
Î Maximum withstand primary peak current
P max
Accuracy - Dynamic performance data
ε Total error @ I , T
tot P N
ε Linearity error (1 % of I
L
I Output current @ I
out
Electrical offset current @ T
I
O E
TCI Temperature coefficient of I
O E
TCI Temperature coefficient of I
out
t Delay time to 90 % of the final output value for I
D 90
Frequency bandwidth (±1 dB)
BW
General data
T Ambient operating temperature
A
T Ambient storage temperature
A st
m Mass
IPxx Protection degree
Notes: I is the highest peak level of the primary signal that is taken into account
1)
P M
for accurate true RMS calculation. Yet the device is designed for
maximum continuous true RMS value equal to I
limited by the above specified output limitation
According to the UL 508 Standard for Safety for Industrial Control
2)
Equipment, the supply voltage must not exceed 42 V DC
Deviation of the offset during the test IEC 61000-4-3 between 100 MHz
3)
and 1000 MHz
Deviation of the offset during the test IEC 61000-4-6 between 150 kHz and
4)
80 MHz.
N° 74.40.34.000.0, N° 74.40.44.000.0, N° 74.40.46.000.0, N° 74.40.48.000.0
18August2020/version 23
Primary current,
measuring range
1)
(A)
I
P M
±600
±600
±1000
±1000
= 25 °C (excluding offset)
A
... I )
P N P N
= 0, T = 25 °C
P A
= 25 °C
A
(0 ... +60 °C)
O E
(−40 ... +70 °C)
(% of reading)
out
LEM reserves the right to carry out modifications on its transducers,
in order to improve them, without prior notice
Primary nominal
RMS current
(A)
I
P N
100
200
300
400
4 ... 20 mA DC
< 300
+20 ... 50 V DC
30 mA + I
out
< 25 mA
30000 At
< ±1 %
< ±1.0 %
4 mA +/-I
O E
< ±1.0 mA
±3.2 µA/K
±6.4 µA/K
±0.1 %/K
step < 150 ms
P N
DC 20 ... 6000 Hz
−40 ... +70 °C
−40 ... +85 °C
260
IP20
, whereas the output is
P N
DHR 500 C420
31 October 2013 YNS
= 100 ... 400 A
I
P N
Features
You understand that the information contained in these files may not be adequate, complete or accurate, and the products depicted in drawings, models, specifications, and other types of
● VFD and SCR waveforms current
content may not be to the most recent version. Only the current datasheet contains latest information. You understand and agree that the Terms and Conditions of the LEM Web Sites apply to
these files. The terms and Conditions are accessible on the LEM Web sites. The use of these files are provided to you conditioned on your acceptance of the Terms and Conditions, including
without limitation, LEM disclaimer and use limitation.
measurement
● True RMS output
No. 28 Linhe Str.Industrial LEM Intellectual Property SA
● I = 4 ... 20 mA
Development Zone Avenue Beauregard 1
Shunyi 1700 Fribourg
out
Beijing, People Republic of China Switzerland
● Panel mounting
101300
● Eliminates insertion loss
● Insulating plastic case recognized
Ω
according to UL 94-V0.
Advantages
● Large aperture for cable up to
⌀ 32 mm
● High insulation between primary
and secondary circuits
● Easy installation.
Applications
● VFD Controlled Loads
VFD output indicates how the
motor and attached load are
operating
● SCR Controlled Loads
Acurate measurement of phase
angle fired or burst fired (time
proportioned) SCRs. Current
measurement gives faster
g
response than temperature
measurement
● Switching Power Supplies
and Electronic Ballasts
True RMS sensing is the most
accurate way to measure power
supply or ballast input power.
Application Domain
● Energy and Automation.
LEM International SA
Chemin des Aulx 8
1228 PLAN-LES-OUATES Switzerland
www.lem.com
Tel. : +86 10 89 45 52 88
Fax.: +86 10 80 48 43 03 (sales)
Fax: +86 10 80 48 31 20 (others)
www.lem.com.cn
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