These sensors can be used to measure battery charge or discharge current, solar charge amps, wind charge amps etc..
Each sensor is fully isolated and non invasive which makes installation as easy as routing your wire through the sensor.
NOTE: These sensors are bi-directional and can measure which direction electrical current is flowing.. I.E. Discharging or Charging a battery
- Solar Charge Current Monitoring
- Wind Turbine Battery Charge Current Monitoring
- Battery Load Amps
- AC Load Amperage
- DC Load Amperage
The sensor has three pins, 5V, Ground and Output Signal
GND: Ground Pin
5V: 5V Power Supply
SIGNAL: 0-5V Signal, 0A = 2.5V, 10A = 2.714V, -10A = 2.286V
(Each sensor includes an individual calibration report, see bottom of page for more details)
Interface details for our Flexs Q5 is available in section 2.1 of the Flexs Q5 Product manual (PDF)
Connecting to the Flexs Q4
This Non-Invasive Current Sensor is fully compatible with our Flexs Q4 and can be powered by the onboard 5V power supply for easy connection, the isolation on these sensors ensures your equipment will not be damaged during large transient surges or other unforeseen events.
Accuracy is excellent and usage is simple, just connect as follows:
Ground connects to the ground terminal on the Q4’s 4 pin supply header
5V connects to the 5V terminal on the Q4’s 4 pin supply header
Output Signal connects to the positive terminal of any of the flexs q4’s analog input channels.
Software Scaling Config:
Hole Diameter: 17.5MM (Approx 11/16″)
Use our Flexs Q4 to remotely monitor these sensors through the internet
Range: AC-75A RMS, DC-100A
insulation vanish coating
Q & A:
- Q: What types of current can be measured?
A: DC, AC(up to several KHz) , PWM
- Q: What is the reading out of this sensor?
A: DC voltage,the range is from 0 – Vcc
* Vcc : 4.5 V — 6 V
- 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
- 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
- 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