Terra Universal Smart Desiccator Installation And Operating Manual Download Page 5

Installation and Operating Guide  

 

Smart

 

® Desiccator 

 

Copyright 2017 Terra Universal Inc.  All rights reserved. • Revised August 2020 • Document No. 1800-16 

Terra Universal, Inc.  •  TerraUniversal.com  •  800 S. Raymond Ave.  •  Fullerton, CA  92831  •  TEL: (714) 578-6000  •  FAX: (714) 578-6020 

 

 

 

2.

 

Release the “B” button. The display should indicate “30”, the factory setting in seconds. Press the “A” button 

to increase this value. The settable range is from 0 – 255; when the value reaches 255 it will cycle to 0 and 

continue climbing. Release when the desired alarm delay appears. 

 

3.

 

Press and hold the “B” button. The display will show “

done

” to indicate the end of the parameter set up 

mode. 

 

4.

 

Release the “B” button to return to Operation Mode. The display will read the current measured relative 

humidity level inside the chamber. The values that have been established will be stored and reloaded each 

time the Smart® Desiccator is powered up.  

 

5.0

 

Desiccator Service and Maintenance 

 

 

Do not attempt to disassemble any of the modules.  Contact Terra for assistance.

 

WARNING 

 

 

 

Do not clean acrylic with alcohol or other strong cleaning agents. 

 

Do not expose static-dissipative PVC to extreme heat or direct sunlight. 

 

A Terra stainless steel shield is required on the bottom of each static-dissipative PVC desiccator 

chamber to prevent scratching.

 

CAUTION 

 

Both acrylic and static-dissipative PVC desiccators should be periodically cleaned with clean, lukewarm water and a 

clean nonabrasive cloth. If desired, a mild, non-abrasive detergent may also be used. Use only light pressure when 

cleaning. 

 

 If the outside of the acrylic is exceptionally dirty or gritty, rinse the surface first by lightly swabbing a saturated cloth 

over the surface and allowing surfactants to drain away. Avoid rubbing dirt or grit into the surface. Turn the cloth often 

and replace with a clean cloth frequently. Dry the acrylic by blotting gently with a clean, dry cloth.  

 

If you clean the inside of the desiccator with water, you should dry the inside surface thoroughly and then purge the 

cabinet with nitrogen for several hours before reintroducing moisture-sensitive materials.  

 

The desiccator is rated for operation in an environment with temperatures between 32°F (0°C) and 104°F (40°C) and 

a relative humidity of up to 92%. 

 

Special Care of Static-Dissipative PVC Plating 

 

Although static-dissipative PVC has greater tensile strength the acrylic, it is not as rigid, and so it tends to bow if not 

supported adequately. For this reason, you should not stack static-dissipative PVC desiccators or place heavy objects 

on top of them.  

 

These desiccators should also be kept away from temperature extremes; avoid prolonged exposure to temperatures 

over 80 degrees Fahrenheit. Always avoid scratching the surfaces. 

 

Stainless Steel Desiccators 

 

Stainless steel should always be cleaned with alcohol (or similar cleaning agent) and a damp cloth. 

 

Summary of Contents for Smart Desiccator

Page 1: ... Guide Document No 1800 16 Smart Desiccator Copyright 2017 Terra Universal Inc All rights reserved Revised August 2020 Terra Universal Inc TerraUniversal com 800 S Raymond Ave Fullerton CA 92831 TEL 714 578 6000 FAX 714 578 6020 ...

Page 2: ...tic RB Relief Bleed Valve relieves system overpressures that could damage door seals Proprietary Notice This manual pertains to proprietary devices manufactured by Terra Universal Inc Neither this document nor any portion of it may be reproduced in any way without prior written permission from Terra Universal Terra Universal makes no warranties applying to information contained in this manual or i...

Page 3: ...arm is displayed Identification Parameter default 0 not used with the Smart Desiccator Purge Off Delay default 5 seconds allows the user to change the delay between the time when the system regains the humidity set point and the high flow purge is de activated This delay ensures that ample purge is provided to remove moisture and contaminants from the chamber The longer the delay the more nitrogen...

Page 4: ...dity Offset 1 To change parameter settings you must first enter the Set up Mode To do so disconnect the 12VDC plug from the side of the unit 2 While pressing and holding both red buttons labeled A and B reconnect the 12VDC plug to the power 3 Release the A button only The LED will show RH to indicate the Relative Humidity Offset Parameter 4 Release the B button The display should read the factory ...

Page 5: ...c dissipative PVC desiccators should be periodically cleaned with clean lukewarm water and a clean nonabrasive cloth If desired a mild non abrasive detergent may also be used Use only light pressure when cleaning If the outside of the acrylic is exceptionally dirty or gritty rinse the surface first by lightly swabbing a saturated cloth over the surface and allowing surfactants to drain away Avoid ...

Page 6: ...do not over tighten these or the desiccator walls will crack After replacing gaskets you may need to realign the desiccator doors refer to System Set Up Testing and Replacing Humidity Sensor If a discrepancy is observed between the displayed RH and that of an independent humidity calibrator the humidity scale can be compensated accordingly see Set Up instructions on page 2 The humidity sensor requ...

Page 7: ... falling you may need to increase the flow from the nitrogen gas supply not to exceed 80 psi or use nitrogen of a higher purity 3 Check the door seals of the desiccator to make sure that there are no visible gaps The flexible gaskets are designed to allow a small amount of leakage in order to maintain a positive pressure environment PROBLEM The digital display is flashing open door EXPLANATION The...

Page 8: ...o deliver an accurate reading contact Terra Universal 2 The fan inside the humidity controller is a key part of the system and must be running to ensure accurate RH readings The system will not provide correct readouts if the fan is not running 7 0Specifications Refer to the original order form for the exact specifications configuration of your desiccator NOTE Automatic RB Relief Bleed Valve Opera...

Page 9: ...ately For Terra s Policy and Procedures for Returning Goods see Terra s Internet site www TerraUniversal com Generally customers can improve the chance of collecting on a freight claim by following these procedures 1 formally requesting that the carrier inspect the shipment immediately upon suspecting damage or shortage to verify condition 2 notifying the carrier upon discovery of concealed damage...

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