Hello,
Thanks for your message.
As per your information, we think the item should be 200219
1.Without relay, it can’t turn on or close the output from battery to load, so all of protections only work when with relay.
2. Please kindly notice it doesn’t have requirement on relay specification.
Relay working voltage matches the independent power supply voltage(DC 10-60v). If you connect 12v relay, the independent power supply connected to “Vext” must be 12v. The imaginary line in wiring diagram only indicates you need to control output with relay. For different relays, the connection of control terminal may be different, please refer to specific connection of your relay.

3. Jumper cap in J3 position means you need to offer independent power supply.
4. We are sorry we are not sure what the numbers 86,85, 30 means. It would be appreciated if you can tell us more details.
5. Regarding to Vext terminal, please refer to the second response. This is used to power the meter separately.

With independent power supply, you can measure DC0-90V. Oherwise it can only read 12-90V.

Best regards.

Hello Mustafa N.，

Thanks for writing in.

We need to check if it is this one,  https://www.amazon.com/dp/B01GFVI6R6/ref=as_li_tl?tag=proeng-20

Is it convenient for you to show how it is by video? In that way, we can check it qucikly. For example, connection, display.

You may share it here or send video attachment to Service# droking dot com(please replace# @)

Best regards.

Hello John，

Thanks for writing in.

Are you talking about this item? 200139   If it is that tiem, your connection is no problem.

Any more questions, please contact us.

Best regards.

Hello JP Kalow，

Thanks for writing in.

The part number is PJ-307. Any more questions, please kindly contact us.

Best regards.

Hello bob，

Below is 200186 manual.

Hello Mike M,

We are not srue your motor type. Below are some motor controllers for brush motor:

Best regards.

Hello Chris LaValley,

Thanks for writing.

As per your information, we find out 2001711007. Do you mean display doesn’t work?  Can it turn on or not?

If possible, would you like to show us how it is by image? You can upload picture here or send it to Service@droking.com

We will find solution for you once confirm the problem.

Best regards.

Hello Lars Alfsen,

Thanks for writing in. Is it  090011?

Would you please tell us how did you turn it? clockwise or anticlockwise. How large is the input voltage and output voltage you need?

If possible, it would be appreciated if you can show operation by video. In that way we can check it quickly. You can send it to service@droking.com.

Best regards.

Best regards.