Item Type: Voltage Relay Module
Material: PCB
Detection Voltage Range: 0-99.9V (minimum adjustment from 0.1V)
Working Voltage: DC 12V
Relay Contactor Maximum Current: 12A (please reserve margin for use)
Setup Details
F03 Working Mode Selection (non setting state):
Long press SET to select F03 working mode, press + and - keys to choose the desired function, then long press SET to save and exit
Note: Before setting this parameter, set the upper and lower voltage limits as needed
H-1
Charge Monitoring: Relay closes when monitored voltage is below lower limit, opens when above upper limit
H-3
Discharge Monitoring: Relay closes when monitored voltage is above upper limit, opens when below lower limit
H-2
Out of Range Close: Relay opens when monitored voltage is between upper and lower limits, otherwise closes
H-4
In-Range Close: Relay closes when monitored voltage is between upper and lower limits, otherwise opens
H-5
Fixed Point Monitoring: Relay closes when monitored voltage is above lower limit, opens when below
H-6
Fixed Point Self Locking Monitoring: Relay closes when monitored voltage is above lower limit and remains closed until manual intervention or power off
H-7
Fixed Point Pulse Monitoring: Relay outputs a momentary signal each time monitored voltage equals lower limit (±0.1V)
F04 Calibration Mode (non setting state):
Long press SET to enter, press + and - keys to select
Default is 0 error. Adjust as needed:
1. If actual input voltage is 12.5V but module displays 12.4V, set correction to +0.1V (12.4+0.1=12.5)
2. If actual input voltage is 12.5V but module displays 12.6V, set correction to -0.1V (12.6-0.1=12.5)
How to Use:
Operating Instructions
In the non setting state, press the SET button briefly to cycle through the display: working mode, lower limit voltage, upper limit voltage.
Parameter Setting Steps
1. In the non setting state, press and hold the SET button for 2 seconds to enter the parameter setting state; the display will show F01. Use the “+” and “-” buttons to select the parameter to be set: F01 (Upper Limit Voltage), F02 (Lower Limit Voltage), F03 (Working Mode), F04 (Voltage Calibration Value).
2. After selecting the desired parameter, press the SET button briefly to enter the parameter setting state, and use the “+” and “-” buttons to adjust the value:
If the lower limit voltage is greater than or equal to the upper limit voltage, the display will show Err for 1 second to alert the user.
If the lower limit voltage equals the upper limit voltage, the relay output function will be disabled.
3. After setting the parameter values, press the SET button briefly to return to the parameter list.
4. After completing the parameter settings, press and hold the SET button for 2 seconds to exit and save the parameters.
5. In the non setting state, simultaneously press and hold the SET button and the “+” button for 2 seconds to restore factory settings.
6. Press and hold the “-” button to turn on or off the energy saving mode for the digital display.