Datasheet

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6August2013/version 4 LEM reserves the right to carry out modications on its transducers, in order to improve them, without prior notice www.lem.com
F2.20.34.000.0 - F2.20.44.000.0
DC Current Transducer DK-B420
Split core transducer for the electronic measurement of DC current,
with galvanic separation between the primary circuit and the secondary
circuit. 4-20 mA DC output current proportional to measured current.
Electrical data
Primary nominal current Output current Types RoHS since
I
PN
(At) I
OUT
(mA DC) date code
50, 75, 100 4-20 DK 100 B420 August 2009
100, 150, 200 4-20 DK 200 B420 August 2009
U
C
Supply voltage 20-45 V DC
R
L
Maximum load resistance 500 Ω
I
SL
Output current limitation 23 mA
I
C
Maximum current consumption 100 mA
Accuracy - Dynamic performance data
X Accuracy @ I
PN
, T
A
= 25 °C ± 2 % of FS
ε
L
Linearity error ± 0.75 % of I
PN
t
r
Step response time
1)
to 90 % of I
PN
< 100 ms
BW Frequency bandwidth DC Hz
General data
T
A
Ambient operating temperature (0-95% RH) - 20 .. + 50 °C
T
S
Ambient storage temperature - 20 .. + 85 °C
m Mass 120 g
IPxx Protection degree IP 20
Standards Safety IEC 61010-1: 2001
EMC
1)
IEC 61326-1: 2005
Note:
1)
For IEC 61000-4-3, IEC 61000-4-6 and IEC 61000-4-4
Criterion B: temporary impairment to operational behavior.
I
PN
= 50 .. 200 A
Features
● DC measurement (magnitude
only)
● Split core case
● Three jumper selectable ranges
● Industry standard 4-20 mA
unipolar current output
● Panel mounting
● Insulating plastic case recognized
according to UL 94-V0
Advantages
● Large aperture
● Extended measuring range
● High insulation between primary
and secondary circuits
● Easy to mount, cut installation
costs
● No insertion loss (voltage drop).
Applications
● Battery banks
Load current monitoring
Charging current monitoring
Operation supervision
● Power supplies
DC power or auxiliary loads
measurement
● Electric heating elements
Faster response than
temperature transducers.
Application domain
● Renewable Energies and
Power Supplies.