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2021-03-19 01:51
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1.Hall sensor
Hall current sensors are mainly used to isolate and convert AC, DC, pulse and other complex signals. After signacontrol of current signalsls are converted according to the Hall Effect Theory, they can be directly acquired by AD, DSP, PLC, secondary instruments and other devices. Hall current sensors are widely applicable for acquisition and feedback in the current monitoring, battery application, inverter, solar power management, direct current cabinet, DC motor drive, electroplating, welding, frequency converter, UPS servo control systems. They feature the quick response, wide range of measurement, high precision, strong overload capacity, good linearity and excellent anti-interference performance.
1.1Open-loop Hall current sensor
1.1.1Explanation for type
1.1.2Technical data
Technical parameters |
Data |
|||
Split/closed open-loop |
Hall (true RMS) |
|||
Output |
Nominal value |
Voltage: ±5V/±4V |
Current: 4-20mA |
|
Zero offset voltage (current) |
Voltage: ±20mV |
Current:±0.05mA |
||
Offset voltage (current) drift |
Voltage: ≤±1.0mV/℃ |
Current:±0.04mA/ ℃ |
||
Linearity |
≤0.2%FS |
|||
Power voltage |
DC±15V |
DC 24V |
||
Bandwidth |
0-20kHz |
|||
Response time |
≤5us |
≤1ms |
||
Dielectric strength |
Permissible 2500VAC between input/ output and power supply at the power frequency |
|||
Accuracy class |
1.0 |
|||
Ambient conditions |
Temperature |
Operating temperature:-25℃-+70℃; storage temperature: -40℃-+85℃ |
||
Humidity |
≤95%RH, no dew, no aggressive gas |
|||
Altitude |
≤3500m |
|||
1.1.3 Split open-loop hall current sensor
 |
 |
| Fig.1 | Fig.2 |
1.1.3.1Spec. and size (unit：mm)
Size Specification |
Outline size |
Through size |
Mounting size |
Figure |
|||||
W |
H |
D |
a |
e |
Φ |
M |
N |
||
AHKC-EKA |
60 |
64 |
16 |
/ |
/ |
20 |
47 |
/ |
Fig.1 |
AHKC-EKAA |
60 |
64 |
16 |
/ |
/ |
20 |
47 |
/ |
Fig.1 |
AHKC-EKDA |
60 |
64 |
16 |
/ |
/ |
20 |
47 |
/ |
Fig.1 |
AHKC-EKB |
100 |
102 |
24 |
/ |
/ |
40 |
80 |
/ |
Fig.1 |
AHKC-EKBA |
100 |
102 |
24 |
/ |
/ |
40 |
80 |
/ |
Fig.1 |
AHKC- |
100 |
102 |
24 |
/ |
/ |
40 |
80 |
/ |
Fig.1 |
AHKC-K |
127 |
63 |
25 |
64 |
16 |
/ |
/ |
30 |
Fig.2 |
AHKC-KAA |
127 |
63 |
25 |
64 |
16 |
/ |
/ |
30 |
Fig.2 |
AHKC-KDA |
127 |
63 |
25 |
64 |
16 |
/ |
/ |
30 |
Fig.2 |
AHKC-H |
149 |
79 |
25 |
82 |
32 |
/ |
/ |
46 |
Fig.2 |
AHKC-KA |
176 |
95.5 |
29 |
104 |
36 |
/ |
/ |
60 |
Fig.2 |
AHKC-HB |
204 |
111.5 |
29 |
132 |
52 |
/ |
/ |
48 × |
Fig.2 |
 |
Specification |
Rated current |
Power supply |
Rated output |
Measuring aperture (mm) |
Precision degree |
AHKC-EKA |
0～(20-500)A |
±15V |
5V |
φ 20 |
1 |
|
AHKC- EKAA |
DC 0～(50-500)A |
12V/24V |
4～20mA |
φ 20 |
1 |
|
AHKC- EKDA |
AC 0～(50-500)A |
12V/24V |
4～20mA |
φ 20 |
1 |
|
AHKC-EKB |
0～(200-1000)A |
±15V |
5V |
φ 40 |
1 |
|
AHKC- EKBA |
DC 0～(200- 1000)A |
12V/24V |
4～20mA |
φ 40 |
1 |
Note: Rated current unlabeled indicates that AC and DC input current can be measured, please specify when ordering.
1.1.3.2Cross-reference tables of spec. -parameter
 |
AHKC- EKBDA |
AC 0～(200～ 1000)A |
12V/24V |
4～20mA |
φ 40 |
1 |
AHKC-K |
0～(400-2000)A |
±15V |
5V |
64×16 |
1 |
|
AHKC- KAA |
DC 0～(400- 2000)A |
12V/24V |
4～20mA |
64×16 |
1 |
|
AHKC- KDA |
AC 0～(400- 2000)A |
12V/24V |
4～20mA |
64×16 |
1 |
|
AHKC-H |
0～(500-3000)A |
±15V |
5V |
82×32 |
1 |
|
AHKC-KA |
0～(500-5000)A |
±15V |
5V |
104×36 |
1 |
|
AHKC-HB |
0～(2000-20000)A |
±15V |
5V |
132×52 |
1 |
Note: Rated current unlabeled indicates that AC and DC input current can be measured, please specify when ordering.
1.1.4 Closed hall current sensor
1.1.4.1 Spec. and size (unit：mm)
Fig.1
Fig.2
Size Specification |
Outline size(mm) |
Through size(mm) |
Mounting |
Figure |
|||||
W |
H |
D |
a |
e |
Φ |
M |
N |
||
AHKC-E |
53 |
72 |
16 |
/ |
/ |
21 |
47 |
/ |
Fig.1 |
AHKC-LT |
90 |
73.5 |
25 |
/ |
/ |
32.5 |
74.5 |
71 |
Fig.1 |
AHKC-BS |
43 |
32.5 |
19 |
20.5 |
10.5 |
/ |
/ |
/ |
Fig.2 |
AHKC-BSA |
43 |
32.5 |
19 |
20.5 |
10.5 |
/ |
/ |
/ |
Fig.2 |
AHKC-F |
74 |
57 |
22 |
43 |
13 |
/ |
/ |
22 |
Fig.2 |
AHKC-FA |
94 |
60.5 |
26.5 |
52 |
15 |
/ |
83 |
28 |
Fig.2 |
AHKC-HAT |
94 |
76.5 |
24 |
52.5 |
32 |
/ |
83 |
28 |
Fig.2 |
1.1.4.2 Cross-reference tables of spec. -parameter
|
|
Specification |
Rated current |
Power supply |
Rated output |
Measuring aperture (mm) |
Precisio n degree |
AHKC-E |
0～(20-500)A |
±15V |
5V |
φ 20 |
1 |
|
AHKC-LT |
0～(100-800)A |
±15V |
5V |
φ 32.5 |
1 |
|
AHKC-BS |
0～(20-500)A |
±15V |
5V |
20.5*10.5 |
1 |
|
AHKC-BSA |
DC 0～(50-500)A |
12V/15V/24 V |
4～20mA |
20.5*10.5 |
1 |
|
AHKC-F |
0～(200-1000)A |
±15V |
5V |
43*13 |
1 |
|
AHKC-FA |
0～(200-1500)A |
±15V |
5V |
52*15 |
1 |
|
AHKC-HAT |
0～(400-2000)A |
±15V |
5V |
52*32 |
1 |
Note: Rated current unlabeled indicates that AC and DC input current can be measured, please specify when ordering.
2.Closed hall current sensor
Closed-loop Hall current sensor is also called Hall magnetic balancing current sensor. It incorporates the mentioned theory with magnetic balancing theory. In other words, the ferromagnetic field concentrator concentrates the magnetic field generated by primary current and applies it to the Hall component. Then the voltage signal output from Hall component is amplified and becomes the input of power amplifier. The offset current output flows through the secondary compensating coil. The magnetic field generated by secondary coil is opposite to the field generated by primary current. In such way, the primary field is compensated and the Hall output is reduced gradually. When the primary field is equivalent to the secondary one and the offset current keeps stable, it is the magnetic balancing.This circuit mainly consists of electromagnetism conversion component, circuit amplifier and drive compensating circuit.
2.1 Explanation for type
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