Process Controllers sample at rate of 40 times per second.

Press Release Summary:

HA Series panel-mounted controller, available in 1/4 and 1/8 DIN sizes, provides maximum of 2 PID loops of control. Multi-memory area stores up to 16 sets of parameters, allowing unit to serve as 32-segment ramp/soak controller. SRX modular, DIN-rail mounted unit controls up to 2 loops per unit. Up to 31 modules may be joined to form system. Ramp/soak function provides for 16 patterns of 16 segments for total of 256 segments.

Original Press Release:

RKC Instrument Announces HA Series and SRX High Speed Controllers for Fast Process Applications

SOUTH BEND, IN - RKC Instrument announces two new instruments designed especially for applications requiring fast response time and versatile functions. Both controllers feature a high speed sampling rate of 0.025 seconds, or 40 times per second, greatly suppressing overshoot. The high speed sampling function makes it suitable for extremely fast processes and mass flow processes in which measured values change rapidly.

The HA Series, available in 1/4 and 1/8 DIN sizes, is a panel mounted controller with a large bright LED display for easy viewing. A maximum of two PID loops of control is provided in a
single unit. Select from single loop, dual loop, or cascade control modes. It has a multi-memory area which stores up to 16 sets of parameters allowing the unit to serve as a 32-segment ramp/soak controller. Modbus, Profibus, and DeviceNet communications are available. Additional functions include power feed forward and independent dual digital communication ports.

The same features and high sampling speed are offered in the SRX modular DIN rail mounted controller. The SRX controls up to two loops per unit but up to 31 modules may be joined to form a system, saving on wiring and labor expenses. The ramp/soak function provides for 16 patterns of 16 segments for a total of 256 segments.

RKC also introduces a new power controller, Model THV, which maximizes the control performance of the HA series and SRX.

For further information please contact RKC Instruments, 4245 Meghan Beeler Court, Suite 2, South Bend, IN 46628. Phone: 574-273-6099, FAX: 574-247-9657, email:, or

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