120426/21

LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.

www.lem.com

Page 1/4

I

Features

● VFD and SCR waveforms current

measurement

● True RMS output

● Panel mounting

● Eliminates insertion loss

● Isolated plastic case recognized

according to UL94-V0

Advantages

● Large aperture for cable up to

Ø32mm

● High isolation 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

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

AC/DC Current Transducer DHR-C5

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 0-5V

voltage output.

Electrical data

Primary Nominal

Primary AC Current

Output voltage

Type

DC & AC Current

(Analog)

I

I

V

100

600

0-5

DHR 100 C5

200

600

0-5

DHR 200 C5

300

1000

0-5

DHR 300 C5

400

1000

0-5

DHR 400 C5

R

L

Load resistance

≥ 10

kW

V

C

+ 20 .. 50

V DC

I

C

Current consumption

30

mA

V

SL

Output voltage limitation (0 - 5 V)

< 7

V

Î

P

Overload capability (Ampere Turns)

30000

A.t

Performance data

X

Accuracy @

I

< ± 1

% of

I

PN

e

L

Linearity error (1% of

I

< ± 1.0

% of

I

PN

V

OE

Electrical offset voltage,

T

< ± 1.0

% of

I

PN

TCV

± 2.0

mV/K

(-40..+70 °C)

± 4.0

mV/K

TCV

± 0.1

%/K

t

r

Response time to 90 % of

I

< 150

ms

BW

Frequency bandwidth (± 1 dB)

DC 20..6000

Hz

General data

T

A

Surrounding operating temperature

- 40 .. + 70

°C

T

S

Surrounding storage temperature

- 40 .. + 85

°C

m

Mass

260

g

IPxx

Protection degree

IP20

signal that is taken into account for accurate True RMS calculation. Yet

the device is designed for maximum continuous True RMS value equal to

I

2)

According to the UL 508 Standard for Safety for Industrial Control

Equipment, the supply voltage must not exceed 42VDC.