Master valve decoders are available for both GTI-PC Gemini and Trident systems.
The Master Valve decoder is typically used to control a set of pumps installed remotely from the DOU and can be seen as a remote pump start relay contact as found inside the DOU.
A Master Valve decoder is not available for the GTI-EC system.
The sub-pump decoder is only available for Trident systems and is designed to switch on the output while stations operated from the same cable path are irrigating.
A sub-pump decoder is not available for Gemini systems.
GTI systems have inbuilt surge protection so in most cases, additional surge protection is not necessary.
For sites that require additional protection, we can supply Decoder surge protectors. These are installed on the control cables (CSG’s) at various intervals and help limit potential damage to decoders.
