The 1027M is available as a Custom OEM model only. Contact the factory for more information.
The model 1027M is a single-phase, zero cross power controller. The average output voltage is proportional to the command signal. Sync-Guard and Trans-Guard features are built into the model 1027M.
The model 1027M will accept a 4 to 20mA command signal. When this signal is absent, the controller will automatically use the internal manual command pot to control the output.
If an external potentiometer is desired for remote operation, terminals are provided for this purpose. For full range control by the external pot, the internal pot must be turned to minimum. The internal pot may be used to set a minimum level of command for the external potentiometer.