Why Upgrade from Mechanical Relays to Solid-State Relays?
Mechanical Relays, which come standard on most kilns have internal moving parts which over time wear out and need to be replaced. Kiln manufacturers recommend you replace your mechanical relays approximately every 2 years. Solid-state relays have no moving parts and last far longer than standard mechanical relays and offer far better temperature control during hold times. Since solid-state relays also have no moving parts to wear out, they NEVER need to be replaced. You will notice that solid-state relays are silent. The only sound you will hear is just the reassuring hum of the heating elements. So, this factory upgrade saves you potential down time from having to wait for new relays to arrive, potential over-fires from relays sticking in the closed position, potential aggravation from having to learn how to remove and replace the mechanical relays yourself. We think this upgrade is well worth the cost and will save you time and aggravation over the life of your kiln.
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Here's a Sample DPF Firing schedule:
Note: The specific firing schedule may vary depending on the DPF manufacturer, its condition, and the desired level of cleaning. Always consult the DPF manufacturer's guidelines for the most accurate and safe procedures.
Here's a general firing schedule using multiple segments in Fahrenheit:
Segment 1: Pre-Heat
Temperature Range: 150°F to 350°F
Duration: 10-15 minutes
Purpose: Gradually warms up the DPF to prevent thermal shock.
Segment 2: Soot Oxidation
Temperature Range: 350°F to 800°F
Duration: 30-60 minutes
Purpose: Oxidizes soot particles in the DPF.
Segment 3: High Temperature Cleaning
Temperature Range: 800°F to 1000°F
Duration: 30-60 minutes
Purpose: Removes any remaining soot and ash.
Segment 4: Cool Down
Temperature Range: 1000°F to 150°F
Duration: 30-60 minutes
Purpose: Gradually cools down the DPF to prevent thermal shock.
Additional Considerations:
Oxygen Supply: Ensure adequate oxygen supply during the cleaning process.
Monitoring: Monitor the DPF's temperature and pressure throughout the cleaning cycle.
Repeat Cycles: If necessary, repeat the cleaning process until the desired level of soot removal is achieved.
Professional Assistance: For complex or heavily clogged DPFs, consider consulting a professional for cleaning.
Remember: This is a general schedule. Always refer to the DPF manufacturer's specific guidelines for the most accurate and safe cleaning procedures.
For those who need a specific DPF Firing schedule to enter based on the above guidelines:
Segment 1: 250F p/h to 350F - HOLD 15min
Segment 2: 350F p/h to 800F - HOLD 60 min
Segment 3: 350F p/h to 1000F - HOLD 60 min
Segment 4: off
Do not open the oven door until you are under 200F.