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Access

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Terra Part #PriceShips in
FloorSDPVCStainless SteelSingle-Side Access422"20.5"16.25" 1609-03BNP $8,33624-30 Days2
FloorSDPVCStainless SteelSingle-Side Access622"20.5"16.25" 1609-05BNP $11,54324-30 Days3
FloorSDPVCStainless SteelSingle-Side Access822"20.5"16.25" 1609-06BNP $14,21424-30 Days4
FloorSDPVCStainless SteelDual-Side Access422"20.5"16.25" 1609-09BNP $9,61824-30 Days5
FloorSDPVCStainless SteelDual-Side Access622"20.5"16.25" 1609-11BNP $13,55424-30 Days6
FloorSDPVCStainless SteelDual-Side Access822"20.5"16.25" 1609-12BNP $17,00124-30 Days7
FloorSDPVCStatic Dissipative PVCSingle-Side Access422"15.875"12.5" 3950-17DNP $4,26225-31 Days8
FloorSDPVCStatic Dissipative PVCSingle-Side Access422"21.875"12.5" 3950-15DNP $4,80425-31 Days9
FloorSDPVCStatic Dissipative PVCSingle-Side Access416.625"15.875"12.5" 3950-16DNP $2,58525-31 Days10
FloorSDPVCStatic Dissipative PVCSingle-Side Access622"15.875"12.5" 3950-02DNP $5,49925-31 Days11
FloorSDPVCStatic Dissipative PVCSingle-Side Access622"21.875"12.5" 3950-00DNP $6,07525-31 Days12
FloorSDPVCStatic Dissipative PVCSingle-Side Access616.625"15.875"12.5" 3950-01DNP $4,80225-31 Days13
FloorSDPVCStatic Dissipative PVCSingle-Side Access522"15.875"12.5" 3950-20DNP $5,22425-31 Days14
FloorSDPVCStatic Dissipative PVCSingle-Side Access522"21.875"12.5" 3950-18DNP $6,15325-31 Days15
FloorSDPVCStatic Dissipative PVCSingle-Side Access516.625"15.875"12.5" 3950-19DNP $3,16125-31 Days16
FloorSDPVCStatic Dissipative PVCSingle-Side Access822"15.875"12.5" 3950-05DNP $7,41725-31 Days17
FloorSDPVCStatic Dissipative PVCSingle-Side Access822"21.875"12.5" 3950-03DNP $7,82125-31 Days18
FloorSDPVCStatic Dissipative PVCSingle-Side Access816.625"15.875"12.5" 3950-04DNP $6,17925-31 Days19
FloorSDPVCStatic Dissipative PVCSingle-Side Access1022"15.875"12.5" 3950-08DNP $8,76725-31 Days20
FloorSDPVCStatic Dissipative PVCSingle-Side Access1022"21.875"12.5" 3950-06DNP $9,95925-31 Days21
FloorSDPVCStatic Dissipative PVCSingle-Side Access1016.625"15.875"12.5" 3950-07DNP $7,70325-31 Days22
BenchtopSDPVCStainless SteelSingle-Side Access222"20.5"16.25" 1609-01BNP $4,08024-30 Days23
BenchtopSDPVCStainless SteelSingle-Side Access322"20.5"16.25" 1609-02BNP $5,96824-30 Days24
FloorSDPVCStainless SteelSingle-Side Access422"20.5"16.25" 1609-04BNP $7,42024-30 Days25
BenchtopSDPVCStainless SteelDual-Side Access222"20.5"16.25" 1609-07BNP $4,72924-30 Days26
BenchtopSDPVCStainless SteelDual-Side Access322"20.5"16.25" 1609-08BNP $6,95524-30 Days27
FloorSDPVCStainless SteelDual-Side Access422"20.5"16.25" 1609-10BNP $8,78524-30 Days28
BenchtopSDPVCStatic Dissipative PVCSingle-Side Access222"21.875"12.5" 3950-09DNP $2,61020-26 Days29
BenchtopSDPVCStatic Dissipative PVCSingle-Side Access216.625"15.875"12.5" 3950-10DNP $1,46020-26 Days30
BenchtopSDPVCStatic Dissipative PVCSingle-Side Access222"15.875"12.5" 3950-11DNP $2,36520-26 Days31
BenchtopSDPVCAcrylicSingle-Side Access222"21.875"12.5" 3950-39DNP $1,89220-26 Days32
BenchtopSDPVCAcrylicSingle-Side Access216.625"15.875"12.5" 3950-40DNP $1,14120-26 Days33
BenchtopSDPVCAcrylicSingle-Side Access222"15.875"12.5" 3950-41DNP $1,63820-26 Days34
BenchtopAmber AcrylicAmber AcrylicSingle-Side Access222"21.875"12.5" 3950-69DNP $1,80120-26 Days35
BenchtopAmber AcrylicAmber AcrylicSingle-Side Access216.625"15.875"12.5" 3950-70DNP $1,39520-26 Days36
BenchtopAmber AcrylicAmber AcrylicSingle-Side Access222"15.875"12.5" 3950-71DNP $1,65120-26 Days37
BenchtopSDPVCStatic Dissipative PVCSingle-Side Access322"21.875"12.5" 3950-12DNP $3,72825-31 Days38
BenchtopSDPVCStatic Dissipative PVCSingle-Side Access316.625"15.875"12.5" 3950-13DNP $1,89325-31 Days39
BenchtopSDPVCStatic Dissipative PVCSingle-Side Access322"15.875"12.5" 3950-14DNP $3,44925-31 Days40
BenchtopSDPVCAcrylicSingle-Side Access322"21.875"12.5" 3950-42DNP $3,44925-31 Days41
BenchtopSDPVCAcrylicSingle-Side Access316.625"15.875"12.5" 3950-43DNP $1,79925-31 Days42
BenchtopSDPVCAcrylicSingle-Side Access322"15.875"12.5" 3950-44DNP $2,58225-31 Days43
BenchtopAmber AcrylicAmber AcrylicSingle-Side Access322"21.875"12.5" 3950-72DNP $2,64925-31 Days44
BenchtopAmber AcrylicAmber AcrylicSingle-Side Access316.625"15.875"12.5" 3950-73DNP $2,36425-31 Days45
BenchtopAmber AcrylicAmber AcrylicSingle-Side Access322"15.875"12.5" 3950-74DNP $2,50925-31 Days46
FloorSDPVCAcrylicSingle-Side Access422"21.875"12.5" 3950-45DNP $3,20525-31 Days47
FloorSDPVCAcrylicSingle-Side Access416.625"15.875"12.5" 3950-46DNP $2,11625-31 Days48
FloorSDPVCAcrylicSingle-Side Access422"15.875"12.5" 3950-47DNP $2,98025-31 Days49
FloorAmber AcrylicAmber AcrylicSingle-Side Access422"21.875"12.5" 3950-75DNP $3,17225-31 Days50
FloorAmber AcrylicAmber AcrylicSingle-Side Access416.625"15.875"12.5" 3950-76DNP $2,74025-31 Days51
FloorAmber AcrylicAmber AcrylicSingle-Side Access422"15.875"12.5" 3950-77DNP $2,95325-31 Days52
FloorSDPVCAcrylicSingle-Side Access522"21.875"12.5" 3950-48DNP $3,95025-31 Days53
FloorSDPVCAcrylicSingle-Side Access516.625"15.875"12.5" 3950-49DNP $2,56825-31 Days54
FloorSDPVCAcrylicSingle-Side Access522"15.875"12.5" 3950-50DNP $3,50625-31 Days55
FloorAmber AcrylicAmber AcrylicSingle-Side Access522"21.875"12.5" 3950-78DNP $3,91325-31 Days56
FloorAmber AcrylicAmber AcrylicSingle-Side Access516.625"15.875"12.5" 3950-79DNP $3,32525-31 Days57
FloorAmber AcrylicAmber AcrylicSingle-Side Access522"15.875"12.5" 3950-80DNP $3,58825-31 Days58
FloorSDPVCAcrylicSingle-Side Access622"21.875"12.5" 3950-30DNP $4,33725-31 Days59
FloorSDPVCAcrylicSingle-Side Access616.625"15.875"12.5" 3950-31DNP $4,04725-31 Days60
FloorSDPVCAcrylicSingle-Side Access622"15.875"12.5" 3950-32DNP $4,30425-31 Days61
FloorAmber AcrylicAmber AcrylicSingle-Side Access622"21.875"12.5" 3950-60DNP $4,44025-31 Days62
FloorAmber AcrylicAmber AcrylicSingle-Side Access616.625"15.875"12.5" 3950-61DNP $4,00325-31 Days63
FloorAmber AcrylicAmber AcrylicSingle-Side Access622"15.875"12.5" 3950-62DNP $4,26025-31 Days64
FloorSDPVCAcrylicSingle-Side Access822"21.875"12.5" 3950-33DNP $5,43925-31 Days65
FloorSDPVCAcrylicSingle-Side Access816.625"15.875"12.5" 3950-34DNP $4,67325-31 Days66
FloorSDPVCAcrylicSingle-Side Access822"15.875"12.5" 3950-35DNP $5,08825-31 Days67
FloorAmber AcrylicAmber AcrylicSingle-Side Access822"21.875"12.5" 3950-63DNP $5,56325-31 Days68
FloorAmber AcrylicAmber AcrylicSingle-Side Access816.625"15.875"12.5" 3950-64DNP $4,75925-31 Days69
FloorAmber AcrylicAmber AcrylicSingle-Side Access822"15.875"12.5" 3950-65DNP $5,19625-31 Days70
FloorSDPVCAcrylicSingle-Side Access1022"21.875"12.5" 3950-36DNP $6,43625-31 Days71
FloorSDPVCAcrylicSingle-Side Access1016.625"15.875"12.5" 3950-37DNP $5,68825-31 Days72
FloorSDPVCAcrylicSingle-Side Access1022"15.875"12.5" 3950-38DNP $6,23025-31 Days73
FloorAmber AcrylicAmber AcrylicSingle-Side Access1022"21.875"12.5" 3950-66DNP $6,57425-31 Days74
FloorAmber AcrylicAmber AcrylicSingle-Side Access1016.625"15.875"12.5" 3950-67DNP $5,98225-31 Days75
FloorAmber AcrylicAmber AcrylicSingle-Side Access1022"15.875"12.5" 3950-68DNP $6,36125-31 Days76
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Product Details

• NitroPlex system provides chamber-by-chamber humidity control using individual RH sensors

• Built-in plenum distributes high-flow nitrogen to each chamber on-demand

• Multi-chamber cabinets isolate different types of stored materials

• Reduced impact on other chambers when one door opens

• Stainless steel racks installed in each chamber; shelves adjust in 1" increments

• Chrome-plated, ergonomic LiftLatches™ do not scrape the chamber like ordinary rotary latches

• Stainless steel-framed doors extend service life and provide a better door seal

• Mechanically attached, one-piece gasket does not creep or crack

• Automatic RB® Valves release moisture-laden air from the cabinet and prevent over-pressurization

• Electrical grounding available; specify when ordering (included standard on Static-Dissipative PVC models)

• Includes one NitroPlex Humidity Module per chamber, one automatic relief/bleed valve per chamber, and one perforated stainless steel shelf (order additional shelves separately)

NitroPlex™ Multiplex Humidity Desiccators

Standard Features

  • A Desiccator lines
    Available for several desiccator lines (shown: acrylic Adjust-A-Shelf Desiccator)
  • B RH Control Module
    RH Control/Display Modules, mounted above each chamber, allow chamber-by-chamber set-point programming/display

NitroPlex™ Desiccator Cabinets

  • Desiccators: Features and Design overview
  • Leveling your Desiccator
  • Video Overview of Stainless Steel Desiccator Cabinets Stainless Steel Desiccator Cabinets
  • Plastic Nitrogen-Purged Desiccator Cabinet with Automated Humidity Control NitroPlex Desiccators Cabinet: Chamber-Level Humidity Control
  • Stainless Steel Desiccator Cabinets with Chamber-Level Humidity Control Series 400 Stainless Steel Desiccator Cabinets
Video Overview of Stainless Steel Desiccator Cabinets
Plastic Nitrogen-Purged Desiccator Cabinet with Automated Humidity Control
Stainless Steel Desiccator Cabinets with Chamber-Level Humidity Control

Features & Benefits

Features and Benefits

NitroPlex Explained

NitroPlex™ Multiplex Humidity Desiccators Overview

Terra’s NitroPlex™ Desiccator Control System optimizes nitrogen purge efficiency for the most demanding applications, when every second of moisture exposure counts.

The NitroPlex™ is the only humidity control system that combines the monitoring and control capabilities required in zero-tolerance applications with miniaturized semiconductor components, bio/pharmaceutical samples and other moisture-sensitive materials.

Chamber-by-Chamber Multiplexed %RH Monitor/Control

A separate high-accuracy, miniaturized humidity module in each desiccator chamber provides independent monitor/control capability. Each module can be programmed locally or remotely to maintain a humidity set point from ambient down to 0%RH.

Nitrogen is directed only where needed to keep the %RH level below the critical set point.

Cuts System Recovery Time to Seconds

Desiccators controlled by a flowmeter may require an hour or more to regain a humidity set point after a chamber access door is opened. When doors are opened repeatedly, humidity levels can remain above the critical set point for an entire work day.

Testing shows that the NitroPlex™ cuts this recovery time by over 400% in a 4-chamber desiccator (see sidebar below). In Terra's Microccator™ this recovery time is cut to a matter of seconds, eliminating moisture-caused damage.

Product Safety Alarm

The NitroPlex™ eliminates another common cause of moisture exposure: access doors mistakenly left open or ajar. The system directs a high-flow nitrogen purge to any chamber the moment its door is opened. If the door remains opened longer than a specified delay time, the NitroPlex™ issues warning alarms to alert personnel to the problem.

Performance Improvements Spell Big Savings

NitroPlex™ Cuts N2 Costs by over 75%, Improves Efficiency by 400% A desiccator with only one bleed valve may cause more harm than good.

Once an access door is opened, any moisture that enters a cabinet will tend to migrate from one chamber to the next until it exits the cabinet through a bleed valve. In a large, multi-chamber cabinet with only one bleed valve, the moisture may contaminate several chambers.

Even a desiccator equipped with Terra Dual Purge™ and NitroWatch® systems may require 40 minutes or more to purge the moisture and recover the desired humidity set point (see test results at right). In this test, the top chamber of a four-chamber desiccator was exposed to moisture until the humidity level reached 97%RH. Figure 1 (on graph) represents the desiccator efficiency when it was equipped with a single Automatic RB® Valve located in the bottom chamber. The system required 40 minutes to bring the humidity level down to the 10% set point.

If, during that period, another door is opened, this recovery time will be extended further. Very possibly, the cabinet might fail to reach its programmed RH set point over the course of an entire shift, or even longer.

Simply by installing Terra's Automatic RB® (Relief/Bleed) Valve in each desiccator chamber, you can cut both the system recovery time and the nitrogen consumption in half. This is the test case represented by Figure 2 on the graph. Only 20 minutes—and only half as much nitrogen--were required to bring the humidity level to the set point.

The final test case (Figure 3) included a NitroPlex™ control system. With this set up, the desiccator required only 10 minutes to bring the RH from 97% to the set point level of 10%—only a fourth the time required in the first test. It consumed only 15 cubic feet (.42 cubic meters) of nitrogen, only 13% of the amount used in the first test case.

This nitrogen saving alone, nearly 77% in this test, justifies investment in a NitroPlex control system.


Fig. 1: Dual Purge™/NitroWatch® Systems, One Automatic RB® Valve
Moisture migrates through cabinet

Fig. 2: Dual Purge™/NitroWatch® Systems, Four Automatic RB® Valves
Moisture migratation eliminated

Fig. 3: NitroPlex™ System
Efficient moisture removal, reduced N2 use
What's Your Application?

The standard NitroPlex™ system provides unsurpassed moisture control in dozens of storage applications. Temperature, gas or biological sensors expand the range of critical operations.

  • Microelectronics components, SMDs, hybrid packages
  • Storage of PCBs for rework
  • Pharmaceutical R&D studies
  • Kitting of high-precision watch components
  • Pass-through transfer of night-vision electronics
  • Lithium battery development
  • Humidity testing of cosmetics
  • Accelerated life testing of ICs
  • Animal inhalation and toxicology research

Which critical control application can you find in your facility?

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.

Static-Dissipative PVC Plating

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.

Ergonomic LiftLatches

Prevents hinge and door damage caused by the twisting and turning and applies uniform pressure to the non-adhesive door gasket; available with locking mechanism.

Automatic RB Valve

During normal operation, it allows a continuous low-level release of gas to maintain a positive pressure. It also functions as a check valve to ensure that air and contaminants cannot enter the enclosure in the event of a momentary negative pressure.

NitroPlex-Ready

Available NitroPlex Module automatically monitors and maintains low-RH set point to protect delicate samples while conserving nitrogen purge gas.

Ergonomic LiftLatches

Lifting latch mechanism minimizes stress on wrists and desiccator hinges; non-rotary motion generates no particles inside the storage area (optional locking model shown)

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

NitroPlex Humidity Control Modules

NitroPlex systems feature individual humidity sensors with LED displays above each chamber door. Each sensor can be programmed with a different humidity set-point level.

Desiccator Plenum Chamber For Uniform Gas Distribution

Multi-chamber desiccator cabinets include a perforated plenum to minimize back fill, ensure uniform gas distribution to all chambers and increase cabinet strength

Stainless Steel Desiccator Cabinet with Racks and Shelving

All-stainless steel Series 400 Desiccator cabinets include stainless steel wire racks and a perforated pull-out shelf; order additional perforated or non-perforated shelves to suit storage requirements.

Individual RH control for Each Chamber

NitroPlex automated system for each chamber controls RH levels down to 1%. Directs nitrogen to individual chambers to maintain their humidity levels below set point. Cuts operational cost by reducing nitrogen consumption; protects products by cutting RH recovery time and moisture exposure.

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.

Available Accessories

Popular Accessories

For a full list of accessories, select a product then click Choose Accessories on that product page.
  • 3-inch Diameter Caster Set
    Casters are easily retrofitted for mobility. Products can be rolled out of the way when cleaning or relocated as workflow changes.
  • 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)
  • 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.
  • Desiccator Cabinet Ionizing Module
    Ionizing modules are available for desiccator cabinets, glove boxes and other enclosures to ensure static-safe storage and processing (shown: ionizing unit on 2-chamber desiccator)
  • Small Powder-Coated Steel Desiccator Stand, 4"H
    Small 4"H powder-coated steel desiccator stand adjusts to fit cabinet snugly; optional casters simplify positioning and cleaning. Also available in stainless steel and 12" height.

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Manuals & Resources

Manuals & Resources

Desiccator Dual Purge System

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