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8611 Universal Process Controller
Brand: Burkert Fluid Control Systems
The universal 8611 controller is especially designed for compact control system applications. It is compatible and tested with all Burkert proportional valves and sensors and can be connected with every none-Burkert Control valve by standard signal (4-20 mA, 0-10 V or PWMoutput). The proportional & Integral (PI) process controller is equipped with many additional functions.
The process value feedback can be supplied as one of three Analog inputs; a standard signal (4-20 mA/0-10V), frequency or Pt100 signal; directly to the universal controller. The process switching points can be set via a 4-20 mA or 0-10 V signal or with the keypad. For temperature specific control, it is possible to set a cascade structure with both temperature and flow as inputs.
Features- Continuous, 2-point, 3-point and On/Off control
- Ratio control function
- Sensor inputs (4-20 mA, 0-10 V, frequency, Pt100)
- Control of proportional, process and motor valves
Specifications
Accuracy
- Output Continuous Signal: 0.5%
Ambient Temperature Range
- 0° to 70° C (32° to 158° F)
Applications
- Conductivity Control
- Flow Control, Ratio Control
- Level Control
- pH Control
- Pressure Control
- Temperature Control
Approvals & Certifications
- EN 61326
Approvals & Certifications
- CE - EN 61326
- EMC - EN 61326
Cable Length
- Voltage Supply: 0.5 mm², Maximum
- Voltage Supply: 328.1 feet (100 meters) Shielded
Consumption
- Power: Approximately 2 W (without Valve - without Sensor Input)
Control Functions Characteristics
- On/Off
Cover Material
- 20% Glass Fibre
Display
- Dual Line 8-Digit LCD with Backlight
Electrical Connectors
- Insert for Connecting to Components According to DIN EN 175301-803
- Multipin: M12-8-Pin
- Multipin: M8-3-Pin, 4-Pin
- Terminals
Enclosure, Body Material
- Polycarbonate (PC), 20% Glass Fibre
Environmental Protection
- IP65
Frequency
- Binary Input: 1 kHz, Maximum
- External Sensor (Input 1), Internal Hall Sensor (Input 2): 0.25 Hz to 1 kHz
- Output Discontinuous Signal (Control Frequency): 20 to 9,999 Hz
Function
- 2-Point Control
- 3-Point Control
Humidity
- ≤ 80% Relative Humidity, without Condensation
Input
- Set Point, Sensor: 0-10 V
- Set Point, Sensor: 4-20 mA
Input Impedance
- Binary Input: 10 KiloOhms
- Sensor Frequency (Input 1): > 1 KiloOhms
- Set Point, Sensor (Standard 0-10 V): 11.5 KiloOhms, Maximum
- Set Point, Sensor (Standard 4-20 mA): 70 ohms, Maximum
Loop Resistance
- Output Continuous Signal: 680 ohms, Maximum
Materials of Construction
- Front Panel Folio: Polyester
- Multipin: Brass (CuZn)
- Multipin: Nickel-Plated
- Wall Mounting Holder: PVC
Measuring Error
- Pt100 (2-Wire): < 0.5° C (32.9° F)
Measuring Range
- Pt100 (2-Wire): 0° to 200° C (32° to 392° F)
Mounting
- Panel Mount
- Rail Mounting
- Wall Mounted
Operating Temperature
- 0° to 70° C (32° to 158° F)
Operating Voltages
- 24 Vdc ± 10%, Filtered & Regulated
- Binary Input (Operating Threshold): 3-30 V
Output
- Continuous Signal (Standard Signal): 0-10 V
- Continuous Signal: 20 mA - Maximum
- Continuous Signal: 4-20 mA
- Output Discontinuous Signal, Binary (Current Load): 1.5 A, Maximum
- Output Discontinuous Signal, Binary (Switching): 24 Vdc
Power Supply
- Sensor/Actuator: 24 Vdc, Maximum
Resolution
- Input Set Point, Sensor (Standard 0-10 V): 2.5 mV
- Input Set Point, Sensor (Standard 4-20 mA): 5.5 μA
- Output Discontinuous Signal: 16-bits, Maximum
Screw Material
- Stainless Steel
Sensor Input
- 0-10 V
- 4-20 mA
Sensor, Probe Type
- Pt100
Storage Temperature
- 0° to 70° C (32° to 158° F)
