Topstek True RMS Current Transducer TMQ80A..1000A-CL420
TMQ80A~1000A-CL420
Features
iHighly
reliable Open Loop Hall Effect device
iFaster
response time than temperature sensing
iExcellent
linearity of the output voltage over a wide input range
True RMS 4-20mA Current Loop Output CT
Applications
iPower
measurement, power panel
iTrue
RMS AC+DC current measurement
i
VFD and SCR type waveforms current measurement
i
True RMS output
i
4-20mA current loop output
Options
iPlastic
case material:
PBT+30%GF(white) standard and PC(blue) option
iOperating
temperature range:
70°C standard and option 85°C available
iConnector
type: specify –E or –M. If other types of connector
required, please contact factory for other possibilities.
iHigh
isolation voltage between the measuring circuit and the
current-carrying conductor (AC3KV)
iFlame-Retardant
plastic case and silicone encapsulant, using UL
classified materials, ensures protection against environmental
contaminants and vibration over a wide temperature and humidity
range
Specifications
Parameter
Nominal Input Current
Max Primary Current Peak
Current Output Protocol
Output Offset Current
Over-Scale Output Current
Load Resistance
Supply Voltage
Accuracy @ I
PN
Linearity
Consumption Current
Response Time (90% I
PN
Step)
Frequency bandwidth (±1dB)
Thermal Drift of Output
Thermal Drift of
Zero Current Offset
Dielectric Strength
Isolation Resistance
@ 1000 VDC
Operating Temperature
Storage Temperature
Mass
I
CC
T
r
f
BW
-
-
-
R
IS
T
a
T
s
W
Symbol
I
PN
I
PMax
I
OUT
I
OS
I
OL
R
L
V
CC
V
%
%
mA
Psec
Hz
%/°C
PA/°C
V
M
°C
°C
g
Unit
A
RMS
A
mA
mA
mA
80A
80
±400
100A
100
±400
200A
200
±800
300A
300
400A
400
500A
500
600A
600
1000A
1000
±1200 ±1600 ±2000 ±2400 ±2400
4-20 mA Current Loop, 4mA@ I
P
=0A, 20mA@ I
P
= I
PN
+4 mA
<32 mA
<300
+20V .. +32V
Within ±1% of I
PN
@25°C(excluding offset)
Within ±1% of I
PN
4-20 mA (= I
OUT
)
<150 msec
DC to 6kHz
Within ±0.1 %/°C @ I
PN
< ±3PA/°C(0-60°C), < ±6PA/°C(-40 .. 70°C)
AC3KV X 60 sec
>1000 M
-40°C to 70°C
-45°C to 85°C
240 g
- 125 -
www.topstek.com
TMQ-CL420
V080530
7/1/2008
Topstek True RMS Current Transducer TMQ80A..1000A-CL420
Appearance, dimensions and pin identification of TMQ-CL420-E
All dimensions in mm ±0.2, holes –0, +0.2 except otherwise noted.
- 126 -
www.topstek.com
TMQ-CL420
V080530
7/1/2008
Topstek True RMS Current Transducer TMQ80A..1000A-CL420
Appearance, dimensions and pin identification of TMQ-CL420-M
All dimensions in mm ±0.2, holes –0, +0.2 except otherwise noted.
- 127 -
www.topstek.com
TMQ-CL420
V080530
7/1/2008
Topstek True RMS Current Transducer TMQ80A..1000A-CL420
Application Connections
TMQ-CL420 can be used with two types of connections. In both cases, the GND pin have no internal connection, and TP
Pin is for factory calibration only.
Connection 1
:
The power supply is on the receiver side. Only two connector pins are used.
Connection 2:
The power supply is on the CT side. Make sure you have a proper ground connection to prevent grounding noise.
- 128 -
www.topstek.com
TMQ-CL420
V080530
7/1/2008
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