SCR Power Supplies | PS305, PS400
The MELLEN PS305 and PS400 are SCR temperature control systems. These power supplies are fully customizable, and can be used for systems with multiple zones, and as high a current as you require.
The MELLEN PS305 and PS400 are SCR temperature control systems. These power supplies are fully customizable, and can be used for systems with multiple zones, and as high a current as you require.
The MELLEN PS305 and PS400 are SCR temperature control systems. These power supplies are fully customizable, and can be used for systems with multiple zones, and as high a current as you require.
GENERAL INFORMATION
The MELLEN Model PS305 is a zero cross temperature control system. This controller uses a Zero Cross SCR that allows finite control and fast power switching. There are no moving parts in the SCR that need maintenance or repair. It includes the following major components:
A Honeywell PID temperature controller with a minimum of 4 programs with 16 segments each and RS485 communications (other controllers available on request)
A furnace specific number of zero cross devices with appropriate voltage and current ratings.
Circuit protection and fusing with appropriate voltage and amperage ratings.
A MELLEN Control Cabinet to house all control system components.
All necessary wiring, terminal boards, interconnections, etc to create a completely operational system.
The MELLEN Model PS400 is a phase angle temperature control system. This specially designed power supply uses a power control SCR rather than a zero cross SCR. The phase angle SCR can be used as power or current limiting. It includes the following major components:
A Honeywell PID temperature controller with a minimum of 4 programs with 16 segments each and RS485 communications (other controllers available on request)
A furnace specific number of phase angle fired SCRs with appropriate voltage and current ratings.
Circuit protection and fusing with appropriate voltage and amperage ratings.
A MELLEN Control Cabinet to house all control system components.
All necessary wiring, terminal boards, interconnections, etc to create a completely operational system.
CUSTOMIZATION
Other controllers are available upon request and include but are not limited to, Eurotherm, Watlow, or Yokogawa.
The temperature control system can be customized through many different devices. If there are any additional requirements you may have for your assembly that are not on this list, please let us know and we will do our best to meet your requirements. Any of the following products are available for the temperature control system:
Other PID controllers, including Eurotherm, Watlow, or Yokogawa are available for use in the PS305 and PS400 series power supplies.
Any number of thermocouples is available for a wide temperature range.
Transformers are available to raise or lower AC voltages.
A rack mounted cabinet option is available to mount the control system at a specific position in the lab.
Independent over temperature alarm(s) utilizing an independent, digitally indicating, digital setpoint “hi limit alarm” controller is available to prevent the furnace from over heating the work charge.
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