K85

K85 OVERVIEW

The K85 DIN rail temperature controller offers accurate 8 segment process control on a wide range of input options and up to 3 outputs, including a variety of alarms. It can be linked to a PO4 touchscreen display/controller via the RS485 link.

PID or ON/OFF Control – The K85 process controller can control both heating and cooling processes, using ON/OFF control or choice of  Self-tune, FAST or Oscillating auto-tune PID control.

Temperature Range – Between -200C and +1760C subject to sensor choice.

4  Set Point / 8 Segment Control – 4 set points are available, enabling 8 segments (4 x ramp/soak segments) to be controlled as part of an overall process (e.g. multi-zone ovens, processes that require bringing back to ambient temperature following high or low temperature process).

Compressor Protection – The K85 has a parameter for specifying time delay in order to protect compressor.

Timer – There is a choice of 5 built-in timer functions to enable a variety of process control features including delayed start up and asymmetrical oscillator.

Alarms – Up to 3 alarms can be programmed and assigned to an output. Various thresholds and deviations can be detected and a range of functionality applied including hysteresis and delay. There is also a Loop Break Alarm.

Single LED Display – The K85 DIN rail temperature controller has a display of 4 LED digits, 12mm high, in red. There are also 3 output status lights (red) and a “bargraph” display indicating whether the current value is equal to, above or below the current set point.

Size – The front panel is 70mm by 60mm in size, increasing to 84mm in height at the rear.

Keyboard – 4 keys (U, P, UP and DOWN), are arranged under the display area, providing parameter access and other functionality such as alarm acknowledgement/reset.

Temperature display – Centigrade or Fahrenheit can be displayed, to the nearest 0.1° or 1.0°

IP40 – The IP rating of this device is 40 – suitable for indoor use only, avoiding excessive moisture or dust.

Inputs and Outputs – The K85 PID controller has up to 3 inputs (one for sensor and 2 digital) and 3 relay outputs. One input is assigned to a temperature sensor and the other is used as a control signal. The unit can cater for a wide range of different input types including TC, RTD, PTC, NTC, mA or V. Both outputs are a relay/SSR outputs, and can be used for device control, or configured for a variety of digital control functions including alarm and timing signals.

Programming – Parameters are manually configurable via the front panel keys.

Communications – The unit has a RS485 serial interface to allow master-slave communications with other units. The unit can also be controlled or monitored via a PO4 touchscreen.

DIN MOUNTING PID CONTROLLER
UP TO 3 OUTPUTS
4 OR 8 SEGMENT PROGRAMMER
INDEPENDENT TIMER
MEMORY KEY / PC PROGRAMMING PORT

OPTIONAL:
POWER USAGE MONITOR
WORKED HOURS/DAY COUNTER