- Process Signal to Pulse Width/Proportional Converter
- Process Signal to Pulse Width/Proportional Converter
- Process Signal to Pulse Width/Proportional Converter
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Process Signal to Pulse Width/Proportional Converter
- For dosing applications where the valve or pump “ON TIME’ is set and then the time between the “ON TIMES’ is set by the analogue input. Low cost proportional control typically for heating or dosing applications such as automated feeding systems.
Specifications:
- Input signal ranges from ±20 mV to ±100 V, ±1 mA up to ±10 A.
- Standard inputs 4-20 mA, 0-10 V, etc.
- AC and DC voltages up to 250 V, currents up to 10 A.
- Resistance, 0-100 Ω up 10 kΩ and frequency inputs also possible.
- Input impedance of >100 kΩ for the voltage input and 50 Ω or less for the current input models.
- Potential free relay contact or transistor output.
- Relay contact rating 230 VAC or 30 VDC up to 5 A, resistive load.
- Uncommitted transistor output at 50 V 1 A.
- Internal link selection of normally open or normally closed relay output.
- For an analogue input ranging from say 4 to 20 mA the output Pulse Period (time between output pulses) is set by SP1 from 60 minutes to 1 second.
- Pulse Width set by SP2 from 1 to 60 seconds, fully anticlockwise = 1 second, fully clockwise = 60 seconds. SP2 is a 20 turn trimpot.
- Auxiliary supply options: 24 VDC, 12 VDC, 9 - 18 VDC, 20 to 30 VDC, 18 – 36 VDC, 36 - 72 VDC.
- Power requirement is 2.5 W maximum.
- Isolation between inputs, power supply and output >1000 VDC.
- Operating temperature -10 to 70°C.
- 24 hour operational burn-in.
- DIN rail mounting.
- High quality self-extinguishing polyamide enclosure.
- Screw terminal connections.
- Dimensions 25 x 80 x 85 mm (W x H x D).
