Hytronik HC028V/RF Instruction Manual Download Page 3

4.1 Zero-cross relay operation

Designed in the software, the sensor switches on/off the load right on the zero-cross point, to ensure the min. current passing 

through the relay contact point, and enable the max. load and life-time of the relay.

4.2 Loop-in and loop-out

Double L N terminal makes it easy for wire loop-in and loop out, saves the cost of terminal block and assembly time.

4.3 Manual override

This sensor reserves the access of manual override function for end-users to switch on/off, or adjust the stand-by dimming 

level with the push-switch, which makes the product more user-friendly, and more options to fit for some extra-ordinary 

demands.

* Short push (<1s): on/off;

ON → OFF: the light turns off immediately and cannot be lighten for a certain time (equals to hold time preset) even 

                    movement is detected. After this period, the sensor goes to auto sensor mode.

OFF → ON: the light turns on 100% and goes to sensor mode, even when ambient LUX level exceeds the daylight threshold.

* Long push (>1s): dim up/down the stand-by dimming level between 10% and 50%. Both the settings on DIP switch and

                              manual override can overwrite each other, the latest action stays in validity.

*If customers do not want to have this manual override function, we can just leave this “push” terminal alone , 

  not connected to any wire.

Section 3 RF Grouping (Max. 16 channels)

Section 4 Functions

Using a screwdriver to adjust the rotary switch on both the master & slave unit, to keep them pointing at the same channel, 
the grouping is then automatically completed. 16 channels (Max. 16 groups) are available for both the master & slave unit.

The sensor is not only a master but also a slave. It has three rotary switches, TX is for sending RF signal, RX1 and RX2 are 

for receiving RF signal from two different groups of masters. Here is an example as below form FYI:

Note: the sensor installed on first floor and top floor receive one RF signal only, RX1 / RX2 point to the same channel.

Using a screwdriver to point the arrow to the same position on the master unit and slave units

TX

Floor No.

1

2

3

4

5

6

7

8

TX

0

1

2

3

4

5

6

7

RX1

1

0

1

2

3

4

5

6

RX2

1

2

3

4

5

6

7

6

RX

Master

Slave

Reviews: