3950-12F-ISO
Terra Part # 3950-12F-ISO
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Accessories related to Terra Part # 3950-12F-ISO
70680
Desiccator; IsoDry®, Static Dissipative PVC, 3 Chambers, 23.5" W x 25" D x 36" H
Product Details
  • Available ISO Ratings: ISO 6, ISO 7, ISO 8
  • Desiccator cabinet with gas dilution fans for fast, uniform moisture removal, down to 0%RH
  • Dilution fans quickly and efficiently mix nitrogen through cabinet to reduce N2 consumption
  • Eliminates moisture "blind spots" that cause large RH deviations between different chambers
  • Automatic humidity control system continuously monitors user-specified RH set-point inside cabinet
  • Ideal for applications that permit chambers to share the same air throughout cabinet
  • IsoDry® desiccator cabinets incorporate a unique, patented nitrogen purge system to achieve faster and more uniform low-humidity conditions throughout the cabinet.
  • The desiccator cabinet includes a moisture sensor that connects to a separate automatic RH control system to maintain sub-ambient, user-specified humidity threshold down to 0% RH.
  • How Isodry® System Works:
  • High-purity nitrogen gas feeds into the desiccator cabinet and is mixed by built-in fans with existing air inside the cabinet.
  • The gas dilution fans continuously circulate and mix dry nitrogen throughout the cabinet to eliminate moisture “blind spots” and further dilute moisture present inside the cabinet.
  • When a door is opened, the door sensor triggers the fan to turn off to prevent outside air from being circulated through the cabinet. When the door is closed: the fans turn back on to accelerate removal of moisture-laden air.
  • The influx of nitrogen gas pressurizes the cabinet, causing moisture-laden air to be displaced and released through the automatic relief/bleed (RB) valves. This steady bleed causes the concentration of dry nitrogen gas inside the desiccator to increase until the desired RH level is reached.
  • When the RH set-point is reached, the system reverts from high-flow to low-flow nitrogen gas supply to maintain the set-point and conserve nitrogen.
  • When RH climbs above the set-point, the system re-activates high-flow to accelerate moisture removal.
  • All chambers within the cabinet share the same air and thus share the same humidity level of the cabinet (+/- 3% RH from set point at ideal conditions).
  • ESD-Safe Design:
  • Static-dissipative PVC (SD-PVC) design features bonded dissipative layers that resist abrasion and retain surface resistivity of 106 - 108 ohms/square indefinitely (unlike spray-on coatings that can wear off after a few years). SD-PVC also eliminates static-cling to help maintain clean surfaces.
  • Grounding tape connects doors and shelf racks to terminal block to safely-discharge surface charges and eliminate the risk of electrostatic discharge.
  • Conforms to DOD Handbook 263, MIL-SPEC 1686 and 1772 with selection of proper accessories.
  • Cabinet Design:
  • Innovative wall fusing technology creates a rigid, durable structure for improved weight capacity and resistance to high-frequency vibrations.
  • Automatic RB™ (Relief/Bleed) valves on each chamber relieve excess pressure inside the cabinet without allowing outside air or contaminants inside.
  • Stainless steel wire racks allow shelves to be positioned at 1” increments to accommodate different part sizes; shelves can also be removed and used as carrying trays.
  • Door Design:
  • Access doors with 304 stainless steel reinforced frames extend desiccator cabinet's service life and provide a tight seal.
  • Santoprene® “e”-shape non-outgassing rubber gasket firmly compresses to eliminate leaks. The one-piece resilient rubber gasket maintains its shape after compression and won't flatten, warp, crack, or degrade like ordinary foam gasket. Gasket is also mechanically attached to the door frame to avoid adhesive failure common with gasket tapes.
  • Heavy-duty lift latches prevent metal-on-metal scraping common with rotary latches; chrome-plated included standard; upgrade to all-stainless steel (304 or 316) to minimize scratching, corrosion and contamination resulting over time that can occur with chrome-plated latches.
  • Optional locking lift latches also available - specify one per chamber.
  • Durable 304 stainless steel hinges eliminate corrosion, flaking, and contamination that commonly occur with ordinary chrome-plated hinges.
  • Order replacement door(s) to ensure uninterrupted service should a door ever be damaged and require replacement.
  • Requires:
  • Gas dilution module requires connection to IsoDry® humidity controller for operation: either IsoDry® Dual Purge System and IsoDry® NitroWatch®, or IsoDry® Smart® Controller (order either system separately).
  • Optional Accessories:
  • Nitrogen generator: provides a continuous, reliable supply of pure, dry nitrogen to eliminate dependence on bulky canisters.
  • Includes:
  • (1) Gas dilution module. Gas dilution module (24V) and sensor are pre-installed and pre-wired for quick connection with Terra’s automatic humidity control systems: DualPurge and NitroWatch®.

Chamber Dimensions: 22.125" W x 22.125" D x 11.625" H

Material: Static Dissipative PVC

Opening Dimensions: 21.875" W x 10.75" H

Number of Chambers: 3

Model: IsoDry®

Design: Benchtop

Chamber Width: 22.125"

Chamber Depth: 22.125"

Chamber Height: 11.625"

Humidity Control: Cabinet Level + Dilution Fan

Door Design: Leak Tight

Unit of Measure: EA

Marks & Listings: CE, UL, ULC

Electrical Specifications: 12 V, 1 Ph, 50/60 Hz

Weight, Product: 65 lb

Dimensions, Product: 23.5" W x 25" D x 36" H

Weight, Shipping: 159 lb

Dimensions, Shipping: 29" W x 43.5" D x 30.5" H

Package Type: Crate

Buy Accessories
  1. Provides variable gas purge levels to maintain humidity set points  |  9500-05 displayed
    $3,025
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  2. Provides variable gas purge levels to maintain humidity set points  |  9500-05 displayed
    $3,025
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  3. Perforated Stainless Steel Shelf allows unimpeded airflow within the desiccator  |  1610-42 displayed
    $287
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  4. 304 Stainless steel solid-bottom tray with extra depth for desiccators 21.3" W x 14.5" D x 2.6" H, single-sided perforation  |  1978-04 displayed
    $305
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  5. Shelf supports ensure that this plastic chamber holds weight  |  2200-21 displayed
    Adjustable Shelf Support; 15"/26" Quick Ship+ Only 9 left in stock
    $128
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  6. Stainless steel shield, installed on the floor of a plastic desiccator chamber, protects against scratching  |  1976-06 displayed
    $305
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  7. Stainless Steel and powder-coated steel stands adjust to fit cabinets, desiccators and cleanroom equipment of any size.  |  1609-20 displayed
    $572
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  8. Small 12"H powder-coated steel desiccator stand; optional casters simplify positioning and cleaning
    $584
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  9. Small 4"H stainless steel desiccator stand; optional casters simplify positioning and cleaning
    $742
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  10. Small 12"H stainless steel desiccator stand; optional casters simplify positioning and cleaning
    $761
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  11. Small (4") locking latch, catcher included. Grid shows one-inch squares.  |  1603-80 displayed
    $107
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  12. Shown on reference grid of 1-inch (25mm) squares  |  1603-40-2-316 displayed
    $370
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  13. Stores 16,382 temperature readings and 16,382 relative humidity measurements.  |  9500-10 displayed
    $290
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  14. Increases security of desiccators and accommodates most standard padlocks.  |  1603-33 displayed
    $42
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  15. Service, ISO 6 Rating Declaration
    Request Quote
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  16. Warranty; 2 Year, Desiccator, Parts
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  17. Warranty; 3 Year, Desiccator, Parts
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  18. FasTrak 24-7 Expediting Service
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  19. UL Listing Declaration for Desiccator and Storage Cabinets
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  20. Qualification Documentation (IQ/OQ) for Terra Universal System
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  21. Equipment Testing
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  22. Acrylic flow meter, valve-2-20SCFH  |  1600-32 displayed
    $358
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  23. One way-valve continuously bleeds gas to relieve pressure and release moisture-laden air  |  1600-60A displayed
    $168
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  24. Perforated Stainless Steel Shelf allows unimpeded airflow within the desiccator  |  1610-42 displayed
    $287
    Increase Down Increase Up
  25. 1504-01-rack-storage-chamber-EPSS  |  1504-01 displayed
    $5
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  26. Adjusts purge rate to maintain low humidity levels when doors are opened  |  1600-49 displayed
    $86
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  27. Small (4") LiftLatch with Catcher  |  1603-84 displayed
    $196
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IsoDry® Desiccator Cabinets

  • universal adjustable base stands Universal Base Stands Offer Excellent Versatility
  • Adjusting universal stand Universal Stand Adjusts to Fit a Wide Range of Equipment
  • Smart® Humidity Module upgrade tutorial Installing Terra's ValuLine™ Desiccator Smart® Controller
  • IsoDry® Desiccator Cabinet by Terra Universal
  • IsoDry® Desiccator Cabinet Airflow Visualization with Dry Ice
Smart® Humidity Module upgrade tutorial

Features and Benefits

Smart Performance for Big Savings

IsoDry's forced dilution system drastically improves moisture removal to quickly and efficiently attain low RH set-points. At 10% RH setpoint, IsoDry cuts recovery time and Nitrogen consumption by 80% compared with an unassisted system.

Stainless Steel Racks for Adjustable Shelf Storage Desiccators

Unlike common chrome-plated hardware, durable electropolished stainless steel racks for adjustable shelf storage desiccators help maintain a contamination-free storage environment. They resist corrosion and chipping/scratching from the sliding removable shelves.

Automatic Relief/Bleed Valve

Terra's Automatic Relief/Bleed (RB) Valve opens up at 0.01 PSI, relieving overpressure that could damage desiccators; also works as a check valve to prevent influx of room air.

IsoDry Gas Dilution Module

IsoDry Gas Dilution Module enhances the relative humidity uniformity throughout the desiccator cabinet.

High Caliber Hardware

Seemingly small details like latches, ports, glides and hinges are often overlooked or ignored by other manufacturers, and later become the point of costly recurring maintenance or equipment failure. Terra’s products are made of long lasting, cleanroom compatible, top tier hardware. Individual components are carefully designed and rigorously tested to guarantee the highest quality, durability, and craftsmanship.

Reinforced Doors with Non-adhesive Gaskets

Stainless steel door frames extend desiccator life; one-piece fused gaskets are non-outgassing, will not creep or sag

Gas Dilution System Ensures Uniform Humidity

IsoDry Gas Dilution Module enhances relative humidity uniformity throughout the desiccator cabinet and speeds up moisture removal after doors are closed.

Durable Embedded Static-Dissipative Layers

Terra's SDPVC features bonded dissipative layers that resist abrasion. SDPVC desiccators retain their surface resistivity of 106 - 108 ohms/square indefinitely (unlike spray-on coatings that can wear off after a few years), protecting your materials against ESD damage. Further, the control of static charges eliminates particle attractions, helping maintain clean surfaces.

Doors - The First Failure Point of a Desiccator Cabinet

Terra’s stainless steel door frames eliminate the need for internal reinforcements, which create particle surfaces and compromise cleaning. Unlike other doors with glue-on anti-bow pieces, Terra’s doors use no adhesives. This eliminates particle traps, sources of outgassing—and extends the strength and service life of the desiccator.

Highest Standards For Desiccators and Electronic Components

Terra’s desiccator cabinets and RH control systems are designed and built to the highest standards required by defense and semiconductor industries for long-term reliability and protection against damage, injuries, and electrical hazards.

Continuous Product Improvement

At Terra, we strive to develop and produce the highest quality products for our customers to improve health, safety, performance, and yields. Our product quality is enabled by high-grade manufacturing equipment and processes, 45 years of engineering and application expertise, and our commitment to continuously improve.

Long-Term Customers

Terra is committed to building long-term relationships with satisfied clients; 94% of orders each year come from repeat customers

Complete Project Transparency

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

ISO 7 Smart® Desiccator Cabinet on Automatic Height Adjustable Workstation

Automatic height adjusting workstations allow users to quickly alternate between comfortable sitting and standing positions while performing different tasks with heavy equipment on the workspace, such as this Smart® Desiccator Cabinet connected to a Nitrogen Generator.

Catalog of CE-Marked Products

Terra offers over 1,700 CE-marked products configured for international voltage requirements

Products Compliant With Your ISO Rating

Provide Terra with your desired ISO rating. We will tailor the product to meet your rating and supply a certificate of compliance appended to your invoice, to be included in your compliance package. All certificates are archived in Terra's system for quick retrieval.

Rapid Drying of Hygroscopic Material

Terra's gas-purged desiccators utilize a rapid flow of inert nitrogen to quickly dry hygroscopic samples and components
Popular Accessories
For a full list of accessories, select a product then click Choose Accessories on that product page.
  • Universal Base Stands Offer Excellent Versatility

    Universal base stands support and stabilize various equipment sizes. Adjustable telescoping members allow for a precise fit. Choose between stainless and powder-coated steel to fit your desired application.
  • Universal Stand Adjusts to Fit a Wide Range of Equipment

    Terra's Universal stands easily adjust to fit a wide range of equipment. Multi-purpose stand frames are suitable for many types of cleanroom equipment, including refrigerators, freezers, incubators, ovens, and vacuum chambers.
  • Compact Portable N2 Generator for Laboratory Use

    The compact enclosed cabinet reduces noise levels to 60dB measured from 3ft away.
  • Laboratory Nitrogen Generator

    Terra’s Nitrogen Generators provide a continuous, reliable supply of clean, dry nitrogen up to 99% pure to eliminate dependence on bulky canisters to operate desiccators and glove boxes.
  • Available Stainless Steel Shelves and Trays

    Adjustable, non-contaminating shelves and trays slide on stainless steel racks, allowing easy parts access (one perforated shelf included)
  • Universal Adjustable Base Stands for Desiccator Cabinets and Cleanroom Equipment

    Stainless steel or powder-coated steel base stands easily adjust to fit cabinets, desiccators and cleanroom equipment of any size or shape. Stands raises equipment to ergonomic height to ease disinfection and sample monitoring. BioSafe design suitable for any cleanroom or lab environment.
  • Humidity and Temperature Data Logger

    Records storage conditions inside a Desiccator chamber-adjustable logging interval (hours to months), USB port for easy data download in several formats.
  • Dual Purge™ and NitroWatch™ Work Together to Fully Automate RH Control

    Terra's Dual Purge™ and NitroWatch™ operate in tandem to precisely and automatically control the flow of nitrogen and maintain a preset humidity level (from ambient to 0% ± 1.5% RH), no matter how operating conditions may change.
  • Data Logging with 113,000 Readings at User Defined Intervals

    Terra's Smart® IsoDry® Nitro-Watch™ logs RH, temp, door open/close, purge on/off, and sensor removal/attachment. The max data file size is roughly 4 MB or 113,000 readings. This is approximately 32 hours of data when logging at 1 second intervals, 2 weeks at 10 second intervals, 6 weeks at 30 second intervals, or 12 weeks at 1 minute intervals. When the system reaches the 4MB limit, data begins to wrap, overwriting oldest data with new.
  • Plug & Play Data Logging

    Plug in a USB flash drive to your Smart® IsoDry® Nitro-Watch™ to transfer data in .CSV format. No software required.

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