Ptronik Pty Limited
ABN: 31 003 718 161
17 Windsor Street
RICHMOND NSW 2753
AUSTRALIA
TEL: +61 2 4578 9611
FAX: +61 2 4578 9622
Email us

The PT50DC is a solid state sequencer designed to provide an adjustable pulse to control the pulse valves on reverse jet dust collectors. The number of outputs, on time, off time 1, off time 2 (fast) and clean up cycle are programmed by the program buttons and displayed on the program display. Two pressure switch control inputs are provided to control the operation of the timer. If connected to D.P.SWITCH interrupt terminal (1) the timer will remember the last solenoid energised and continue with the next output. If connected to the full cycle terminal (2) the timer will complete the sequence and stop at the last output. The clean up feature will run the timer for a programmed number of complete cycles (0-255) after the baghouse fan is turned off. The clean up cycle is initiated by the opening of the auxiliary contact of the fan contactor. A jumper wire must be fitted if clean up cycle is not used. A GREEN LED marked - FUSE OK - will be illuminated as long as power is connected and the fuse has not blown.

SPECIFICATIONS:

• Input voltage 240VAC, 50-60Hz
• Fuse 2Amp slow 5x20mm
• No. of Outputs up to 50
• Off Time 1 1 to 999 seconds (in 1 second steps)
• Off Time 2 1 to 999 seconds (in 1 second steps)
• On Time 10 to 990 milliseconds ( in 10 ms steps)
• Clean up cycle 0 to 255
• Output voltage 24VDC
• Load output 2 Amp
• Operating temp. -10 to + 55 degree centigrade
• Plugin terminals

Other voltages and program changes are available to order

DIMENSIONS:

The PT50DC consists of a P.C. card 490 mm long, 220 mm wide and 60mm high. A suitable dustproof plastic or metal enclosure is available.

WIRING:

Programming Instructions for PT Series Timers:

Press the Select button to illuminate the RED LED indicator to the left of the program display. Each time the select button is pressed the next specific function LED will illuminate. Once a function has been selected, press the UP and DOWN push button to set the desired number of valves, On Time, Off Time and Clean up Cycle. After completion press the select button to illuminate LED indicator "RUN". Now all settings are locked in, the program display will indicate "0" and the timer will go through the sequence. To check or change a specific function just push the Select button and illuminate the desired LED. The program display will display the current setting. In that position changes can be made and when completed push the select button to illuminate LED indicator "RUN". SEVEN SEGMENT PROGRAM DISPLAY: The program display will provide you with the following information:

• Display reads "0" = Sequencer is running
• Display reads "1" = D.P. Switch closed at Power On
• Display reads "2" = Clean Up Cycle Complete
• Display reads "3" = Full Cycle Complete
• Display reads "4" = Pressure Switch Interrupt
• Display reads "5" = Fast Cycle

Archive Status:

This product was archived in January 2008. Replaced by ST10DC and four (4) extension boards.

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