AKR200C420L 参数 Datasheet PDF下载

AC Current transducer AKR-C420L

Transducer for the electronic measurement AC waveforms current,

with galvanic isolation between the primary (High power) and the

secondary circuits (Electronic circuit). Jumper selectable ranges and

True RMS 4-20mA current output.

I

PN

= 2..200A

Electrical data

Primary Nominal CurrentAnalogue Output Signal

1)

I

PN

(A.t.RMS)

2,5

10,20,50

100,150,200

Vc

R

L

V

b

V

d

f

I

OUT

(mA)

4-20

4-20

4-20

AKR 5 C420L

AKR 50 C420L

AKR 200 C420L

24

Type

RoHS

Date Code

JULY 2006

planned

JULY 2006

V DC

VAC

kV AC

Hz

Features

•

VFD and SCR waveforms current

measurement

•

True RMS responding

•

4-20 mA Current output

•

Loop powered transducers

•

Panel mounting

•

Accurate

•

Jumper selectable ranges

Supply voltage (Loop powered)

Load resistance

see power supply diagram

Rated voltage (CAT III, PD2)

150

RMS Isolation voltage test, 50 Hz, 1mn

3

Frequency bandwith

20-100

Advantages

•

Large aperture

•

High isolation between primary and

secondary circuits

Accuracy - Dynamic performance data

X

t

r

Accuracy @ I

PN

, T

A

=25°C

Response time @ 90% of I

PN

±

1

< 600

%

mS

•

Easy to mount

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.

•

Switching Power Supplies and

Electronic Ballasts:

True RMS sensing is the most

accurate way to measure power

supply or ballast input power.

General data

T

A

T

S

m

Ambient operating temperature (0-95% RH)

Ambient storage temperature

Mass

Safety

EMC

1)

-20 ..+ 50

-20 ..+ 85

90

IEC 61010-1

EN 61326

°C

°C

g

Note:

For 4-20mA output model, no saturation output up to 23 mA.

Selecting the transducer

VFD (Variable Frequency Drive) and SCR (Semi Conductor Rectifier) output

waveforms are rough approximations of a sine wave. There are numerous spikes

and dips in each cycle. AKR transducers use a mathematical algorithm called

“True RMS,” which integrates the actual waveform over time. True RMS is the only

way to accurately measure distorted AC waveforms.

Select AKR transducers for

nonlinear loads or in “noisy” power environments.

Options on request

•

DIN mounting

060816/6

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

LEM

www .lem.com