Terra Part # 2625-54B-SS-220
Usually ships in 1-3 business days

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Quick Ship+ Available Only 9 left in stock
Terra Part # 2625-54B-SS-220
Usually ships in 1-3 business days

Want it faster ? Read about FasTrak

Quick Ship+ Available Only 9 left in stock
Product Details
  • Keep your fan/filter units working safely and efficiently
  • 1 Filter Replacement Alarm unit covers for all FFUs in your cleanroom!
  • Receive automatic replacement alerts to avoid costly and unexpected operational interruptions
  • Prevent electrical/fire hazards caused by overworked motors pushing against overloaded HEPA filters
  • Control differential pressure set-point to adjust frequency of filter replacement
  • Includes audible buzzer with silencer that sounds when set point level is exceeded
  • Factory set to issue a warning alarm when pressure reaches twice the initial backpressure (typically 1.5" WC), indicating need for filter replacement (adjustable 0.5" - 2" WC)
  • Alarm unit connects to one FFU equipped via challenge port and signals when all filters are ready to be replaced
  • TUI Logo flashes when the HEPA or ULPA filter needs to be replaced
  • Integrated Minihelic gauge displays the backpressure within the fan/filter unit
  • Monitoring system’s control box is typically mounted above the cleanroom control panel
  • Module draws power from the cleanroom PDM or can be connected to a standard 120V outlet (order power outlet cord adapter separately)

Unit of Measure: EA

Electrical Specifications: 240 V, 50/60 Hz

Dimensions, Product: 4"W x 4.25"D x 6.6"H

Weight, Shipping: 5 lb

Package Type: Crate

Manuals & Resources

Fan Filter Units

  • Terra Universal WhisperFlow® Filter Fan Units Terra Universal WhisperFlow® Filter Fan Units
  • Cleanroom HEPA or ULPA Fan Filter Unit WhisperFlow Cleanroom HEPA Fan Filter Unit
  • Stainless Steel WhisperFlow Fan and Filter Units Stainless Steel WhisperFlow Fan and Filter Units, 2' x 4'
  • EC HEPA Fan Filter Unit Smart WhisperFlow Fan Filter Unit with EC Motor
  • Room Side Replaceable Fan Filter Units (FFUs) Room Side Replaceable WhisperFlow® Fan Filter Units (FFUs)
  • Explosion-Proof Softwall Cleanroom Explosion-Proof Softwall Cleanroom
  • 2' x 4' Ducted HEPA Filter Unit Ducted HEPA Filter Unit, 2' x 4'
Terra Universal WhisperFlow® Filter Fan Units

Features and Benefits

Learn More: Filter Replacement Alarm System

Filter Replacement Alarm System

  • Keep your fan/filter units working efficiently
  • Receive automated filter replacement alerts
  • Prevent electrical or fire hazards
  • Control filter set-point
  • Plan ahead to avoid operational interruptions

Knowing when to replace a HEPA or ULPA filter can be challenging. Terra's Filter Replacement Alarm can help! The module monitors the back-pressure of the filter and alerts cleanroom personnel when replacement is needed.

FFU motor damage may occur from over-work due to building pressure, and even lead to electrical failure or dangerous fire hazards. Filter replacement is much more economical than FFU replacement or room rewire, and doesn't require time-consuming operational shutdown.

How does it work? Pressure within the space between the blower and the filter will increase over time as more and more particles accumulate in the filter. The system's Photohelic® gauge features two manually adjustable needles that are used to mark the original backpressure reading and the maximum acceptable level (typically double the backpressure reading of a new filter).

The gauge connects to the nearest fan/filter unit (FFU) equipped with a Challenge Port (Part #6601-99) and displays the backpressure created within the FFU. An LED indicator light above the gauge will flash, and a buzzer will sound, when the pressure exceeds this set limit. Personnel are then notified that the room's HEPA or ULPA filters should be replaced. An override switch silences the buzzer, but the light continues to flash until the filter is replaced.

Complete Project Transparency

Terra is dedicated to complete transparency on project status, shipment tracking, and installation scheduling

Complete Order Transparency

Using Terra’s OnTrak system, our customers can view real-time production updates, receive shipment notifications and track their orders until they arrive at their facility

On a tight schedule? Choose FasTrak 24/7 Priority Service to help meet your critical schedule for Terra-manufactured products, either before or after your order is placed.*

  • FasTrak 24/7 provides a 24/7 commitment to meet the shipping date YOU specify, regardless of quoted lead times.
  • FasTrak 24/7 assigns a dedicated production team plus a dedicated senior expeditor working three shifts to meet your delivery specification.
  • FasTrak 24/7 guarantees* to meet the agreed-to specified ship date.

Call for pricing. FasTrak service fees cover costs of additional services only, without additional profit.

 * Terra's FasTrak services limited guarantee: to ship on the ESD or date specified OR to refund up to 100% of FasTrak charges. This guarantee covers no direct, special, consequential or other damages and is strictly limited to up to 100% of the amount paid for FasTrak service. When a specified ship date is missed due to factors outside Terra's control (vendor performance, deliveries by shipping companies, etc.) and random factors such as accidents, the credit of up to 100% of the FasTrak 24/7 may not apply. FasTrak service requested after order placement will be quoted and accepted based on available time remaining before required ship date.