AC/DC Current Transducer DHR-C420IPN = 100 .. 1000 A

The transducer for the electronic measurement of DC & distorted AC waveform currents, with galvanic isolation between the primary circuit （power）

AC/DC Current Transducer DHRC420                   I_PN = 100 .. 1000 A

 

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 4-20 mA current output.dat

Primary Nominal			Primary AC Current	Output current		Type
DC & AC Current			Max. Peak Value 1)
	IPN	(A.t.RMS)	IP (A)	IOUT	(mA DC)
		100	600		4-20	DHR 100 C420
		200	600		4-20	DHR 200 C420
		300	1000		4-20	DHR 300 C420
		400	1000		4-20	DHR 400 C420
		500 2)	1800		4-20	DHR 500 C420
		600 2)	1800		4-20	DHR 600 C420
		1000 2)	1800		4-20	DHR 1000 C420

 

RL	Load resistance				< 300	W
VC	Supply voltage				+ 20 .. 50	V DC
IC	Current consumption				30 mA + IOUT
ISL	Output current limitation				< 25	mA
ÎP	Overload capability (Ampere Turns)				30000	A.t
Performance data
X	Accuracy @ IPN, TA  = 25°C (excluding offset)				< ± 1	% of IPN
eL	Linearity error (1% of IPN	.. ± IPN)			< ± 1.0	% of IPN
IOE	Electrical offset current,	TA	= 25°C		4	mA
TCIOE	Temperature coefficient of		IOE	( 0..+60 °C)	± 3.2	mA/K
				(-40..+70 °C)	± 6.4	mA/K
TCIOUT	Temperature coefficient of IOUT			(% of reading)	± 0.1	%/K
tr	Response time to 90 % of IPN step				< 150	ms
BW	Frequency bandwidth (± 1 dB)				DC 20..6000	Hz
General data
TA	Surrounding operating temperature				- 40 .. + 70	°C
TS	Surrounding storage temperature				- 40 .. + 85	°C
m	Mass				260	g
IPxx	Protection degree				IP20

Notes : 1) The Max. Peak AC Current is the highest peak level of the primary 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_PN, whereas the output is limited by the above specified output limitation.

2) According to the UL 508 Standard for Safety for Industrial Control Equipment the primary current must not exceed 475 A.t.RMS through the transducer hole.

Features

●● VFD and SCR waveforms current measurement

●● True RMS output

 

●● 4-20 mA current 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

Vb

Rated isolation voltage rms 3)                                            300                           V

according to the standard IEC 61010-1 and with the following conditions:

• Reinforced isolation

 

• Over voltage category CAT III

 

• Pollution degree PD2

 

• Heterogeneous field

 

V	Rms voltage for AC isolation test 4), 50 Hz, 1min	4.0	kV
d	Creepage distance	7.2	mm
dCp
dCl	Clearance distance	7.2	mm
CTI	Comparative tracking index (Group I)	> 600