Current Transducer HMS 5..20-P
For the electronic measurement of currents: DC, AC, pulsed...,
with galvanic isolation between the primary circuit (high power) and
the secondary circuit (electronic circuit).
IPN = 5 .. 20 A
All data are given with a RL = 10 kW
Electrical data
Primary nominal
current rms
Primary current
measuring range
Primary Conductor
Size x Turns
(mm)
0.65 x 1.6 x 4T
0.65 x 1.6 x 4T
1.2 x 2.2 x 2T
1.2 x 2.2 x 2T
Type
I
PN (A)
5
IPM (A)
± 15
± 30
± 45
± 60
Features
HMS 05-P
HMS 10-P
HMS 15-P
HMS 20-P
10
15
20
● Hall effect measuring principle
● Galvanic isolation between
primary and secondary circuit
● Isolation test voltage 4300V
● Low power consumption
● Extremely low profile, 12mm
● Single power supply +5V
● Fixed offset & gain
VOUT
GTH
VREF
Output voltage (Analog) @ IP
Theoretical sensitivity
VOE ± (0.625·IP/IPN)V
0.625
2.5 ± 0.025
V/IPN
V
Reference voltage1) - Output voltage
V
V
REF Output impedance
REF Load impedance
typ. 200
W
≥ 200
≥ 2
< 5
= 4.7
5
kW
kW
W
nF
V
● For SMT mounting
RL
ROUT
CL
VC
IC
Load resistance
Output internal resistance
Capacitive loading
Supply voltage (± 5 %)3)
Current consumption @ VC = 5 V
Advantages
● Small size and space saving
● Only one design for wide primary
current range
19
mA
Accuracy - Dynamic performance data
● High immunity to external
interference.
X
e
Accuracy2) @ IPN , TA = 25°C
Linearity error 0 .. IPN
.. 3 x IPN
≤ ± 1
≤ ± 0.5
≤ ± 1
≤ ± 0.4
≤ ± 0.01
≤ ± 0.015
≤ ± 0.2
% of IPN
% of IPN
% of IPN
mV/K
%/K
● VREF pin with REF OUT & REF IN
modes
L
Applications
TCVOUT Temperature coefficient of VOUT @ IP = 0
TCVREF Temperature coefficient of VREF (25 .. 85 °C)
(-40 .. 25 °C)
TCVOUT/VREF Temperature coefficient of VOUT/ VREF @ IP = 0
TCG Temperature coefficient of G
● AC variable speed drives
● Static converters for DC motor
drives
● Battery supplied applications
● Uninterruptible Power Supplies
(UPS)
● Switched Mode Power Supplies
(SMPS)
● Power supplies for welding
applications.
%/K
mV/K
≤ ± 0.07% of reading/K
VOE
VOM
Electrical offset voltage @ IP = 0, TA = 25℃
Magnetic offset voltage @ IP = 0,
after an overload of 3 x IPN DC
Reaction time @ 10 % of IPN
Response time to 90 % of IPN step
VREF ± 0.025
V
< ± 1.2
< 3
< 5
> 50
< 20
% of IPN
µs
tra
tr
µs
di/dt di/dt accurately followed
Vno
A/µs
mVpp
mVpp
kHz
Output voltage noise (DC .. 10kHz)
(DC .. 1MHz)
Frequency bandwidth (- 3 dB)4)
Application domain
< 40
DC .. 50
BW
● Industrial
Notes : 1) It is possible to overdrive VREF with an external reference voltage
between 1.5V - 2.8V providing its ability to sink or source approximately
5 mA.
2) Excluding offset and hysteresis.
3) Maximum supply voltage (not operating)
< 6.5 V
4) Small signal only to avoid excessive heatings of the magnetic core.
Page 1/6
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
110512/13
www.lem.com
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