Range: AC-75A RMS, DC-100A
Class F insulation coating
Type: Open Loop
Q & A:
1. Q: What types of current can be measured?
A: DC, AC(up to several KHz) , PWM
2. Q: What is the reading out of this sensor?
A: DC voltage,the range is from 0 - Vcc
* Vcc : 4.5 V -- 6 V
3. Q: How do I convert the voltage reading to the unknown current value?
A: Formula: Unknown Current (A) = (V1-V0) / CF
e.g. V0 = 2.5 V , CF = 0.0224
V1 is the volt reading @ unknown current
Unknown Current (A) = (3.5-2.5) / 0.0224 = 44.64 A
Unknown Current (A) = (2.0-2.5) / 0.0224 = -22.32 A
4. Q: What are V0 and CF?
A: V0 is the output voltage at 0 Amp
CF is increase of volt reading when the current increase 1 Amp
* All sensors will be shipped along with calibrated values of V0 and CF
5. Q: How can I measure V0 and CF?
A: To measure V0:
Power on the sensor and read the output voltage while no current is
applied. This voltage is V0.
To measure CF:
While applying some current(e.g. 20 amp) to sensor (passes through
the toroid core), read the output voltage V1. The CF can be calculated using
the formula: CF=(V1-V0) / 20
Sample of Test Report 1 :(Output: Voltage Meter Reading@ Input: DC Current)
2.500 V @ 0 Amp,
2.714 V @ 10 Amp,
2.926 V @ 20 Amp,
3.139 V @ 30 Amp,
3.353 V @ 40 Amp,
3.567 V @ 50 Amp,
3.780 V @ 60 Amp,
V0 = 2.50 V
CF = 0.021 V / Amp
1 pcs Hall Effect Current Sensor