Can I use my HI 2151/30 D2 option relay board with my HI 4050 unit?

Yes, you can utilize the HI2151/30xx-D2 relay option board, hooked up to the HI 4050 unit with the DIO option installed and an external 5 v dc power supply for the HI 4050 relay capabilities.

The attached Tech Note gives instructions on how to hook up the DIO outputs to the relay board and external power supply and mapping to get this to work.  The HI2151/30xx-D2 option does not come in an enclosure and is a circuit card with 6 solid state relays and relay driver circuits.