APPLICATION SPECIFIC SEQUENTIAL TIMER
Description
Function:
Application Specific Sequential timer is designed to control the cleaning cycle of On-Line Bag Filters with 10 adjustable ON time, 10 adjustable OFF time along with separate relay output for each channel.
| Facility of working through D.P. mode, which enhances Bag life. |
| It accepts DP switch potential free contact input directly, hence saves PLC Digital Input. |
| Designed to reduce the consumption of compressed air, hence reduction in electricity consumption. |
| Solenoid is energized at Zero Crossing of AC cycle to reduce solenoid inrush current. This improves solenoid and timer life. |
| Separate terminals for solenoid phase and neutral connections, hence no need of separate junction box. |
| Surge suppressors are provided to protect output circuit from high voltage surge generated during solenoid operation. |
| Inputs to the timer are potential free contacts from D.P. Switch and Remote on command from PLC. Remote ON command Potential Signal input is available optionally. |
| Operating sequence can be started or stopped from Remote location or through PLC / DCS system. |
| Manual Purging Facility. |
| Sequence Termination Facility at any desired channel. |
| Adjustable ON Time, OFF Time & PAUSE Time. PAUSE time is optional, which provides the time gap required for building Air Pressure. |
| Control Supply 110V AC or 230V AC. Unit suitable for 24V DC Control Supply or 24V DC solenoid voltage is also available optionally. |
| These bag filter timers can be used for 110V AC or 230V AC or 24V DC solenoids. |
| Timer (Supply) ON or Purging ON or Cycle Complete Feedback Facility. |
| Models with 10 output channels available. For higher channels Microcontroller based models (MBFC series) available. |
| Sheet Steel, IP-55 grade enclosure, suitable for Field Mounting. IP-65 grade Enclosure available optionally. |
| Supply Voltage | 110V AC, 50 Hz, or 230V AC, 50 Hz or 24V DC |
| Input | : 1) Differential Pressure through D.P. Switch (Potential Free Contact) 2) Remote ON Command from PLC (Potential Free Contact). Remote ON command Potential Signal input is available optionally |
| Output | : Relay Output |
| Solenoid Voltage | : 110V AC or 230V AC or 24V DC |
| Protection | : 1) Surge Suppressor circuit for control supply 2) Fuse for Control Supply and Load 3) Surge Suppressor for protection of output circuit |
| Output Channels | : 10 |
| LED Indication | : 1) Control Supply 2) Pulses 3) Channel Indication 4) Timer ON Feedback |
| ON Time | : 20 – 200 msec (Adjustable), available for 10 channel model only |
| OFF Time | : 2 – 120 seconds (Adjustable), available for 10 channel model only) |
| PAUSE Time (Optional) | : 2 – 240 seconds (Adjustable), available for 10 channel model only |
| Operation | : Auto, Sequential Operation |
| Sequence Termination | : At any desired channel |
| Enclosure | : CRCA Sheet Steel, Powder coated, weather proof to IP-55 grade suitable for field mounting. IP-65 grade Enclosure available optionally |
Bag Filter Timers are used in De-Dusting and Process Bag House in various industries such as: Aluminium, Asbestos, Carbon Black, Clay, Detergent, Gypsum, Limestone, Saw Dust, Steel / Sponge Iron, Solvent Extraction, Non-ferrous, Bagasse Dust, Cement, Food Grain Handling, Fly Ash, Iron Ore, Sugar, Chemicals, Fertilizers, Flour, Tea, Ceramic, Coal, Paint Pigments, Milk Powder, Soda Ash, Battery Industries, Wood, Spices etc.
