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Supplemental Manual

Document No. 1788-26

IsoDry™ RH Control System

©

Copyright 2017 Terra Universal Inc. All rights reserved. • Revised November 2020

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

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Содержание IsoDry

Страница 1: ...ent No 1788 26 IsoDry RH Control System Copyright 2017 Terra Universal Inc All rights reserved Revised November 2020 Terra Universal Inc TerraUniversal com 800 S Raymond Ave Fullerton CA 92831 TEL 714 578 6000 FAX 714 578 6020 ...

Страница 2: ...ons for the Adjust A Shelf Cabinet Dual Purge or NitroWatch refer to Doc 1800 40 Desiccators and RH Controllers NOTE 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 informati...

Страница 3: ...1 The IsoDry Desiccator Cabinet 2 The IsoDry Dual Purge 3 The IsoDry NitroWatch 4 The IsoDry Gas Dilution Module IsoDry Dual Purge System The Dual Purge System controls the nitrogen gas input The system provides two levels of nitrogen purging to protect your stored materials Low level purge and high level purge Low level purge maintains the minimum pressurization necessary to block out moisture an...

Страница 4: ...ensor is capable of measuring humidity over the entire humidity range from 0 to 100 RH with an accuracy of 2 RH at a temperature of 68 F The voltage output of the sensor is directly proportional to the humidity A 3 prong connector allows easy connection of the sensor to the Control Unit The Control Unit provides the indicators and controls necessary to set the desired humidity level and to measure...

Страница 5: ...tch draws its power from the Dual Purge System and will not operate unless the Dual Purge System is plugged in and turned ON NOTE 1 Plug one end of the low voltage phone cable into the Purge Control jack on the back of the Dual Purge and plug the other end into the Purge Control jack on the back of the NitroWatch 2 Plug the 5 pin cable into the RH sensor jack on the back of the NitroWatch and conn...

Страница 6: ...6 Terra Universal Inc TerraUniversal com 800 S Raymond Ave Fullerton CA 92831 TEL 714 578 6000 FAX 714 578 6020 6 IsoDry System Setup Rear View RH Sensor Out Purge Control Gas Out Internal Pressure 5 pin Connector IsoDry Fan Power IsoDry Fan Speed Adjustment Gas In Power Supply IsoDry Gas Dilution Module To Nitrogen Supply To 120VAC Power Source ...

Страница 7: ...e remains active after door is closed default 5 If operating the Dual Purge without a NitroWatch you should increase this setting to 60 door After switching to high purge the number of seconds to delay before turning on the beeper alarm beeP State of the BEEPER enable default ON Glo Activates GLOVE BOX control mode Press UP to turn ON and proceed to glove box pressure setting DOWN to turn OFF defa...

Страница 8: ...inet The flowmeter also ensures uninterrupted nitrogen flow if power or system electronics ever fail If continuous purging is desired open the flowmeter to 5 10 SCFH depending on chamber size This is recommended if you require a very low humidity set point less than 10 RH or if doors are frequently opened Continuous purging will tend to drive the RH level very low If continuous purging is not requ...

Страница 9: ... SET button 2 Adjust Humidity Set Point After completing initial programming press the SET button to view the current RH set point default setting 15 Use the UP DOWN keys to change this set point Wait for a couple seconds without pressing any buttons to save the new set point 3 Beeper Silencing Press any front panel button to silence the beeper during an alarm condition The NitroWatch will now act...

Страница 10: ...sts or if you encounter any problems not described below call Terra Universal for additional assistance Do not attempt to disassemble any of the modules Contact Terra for assistance WARNING PROBLEM System won t turn on POSSIBLE SOLUTIONS 1 Make sure that the power cord of the Dual Purge System is plugged into an appropriate outlet and that the two telephone cables to the NitroWatch and desiccator ...

Страница 11: ...un the risk of pressure build ups PROBLEM The system constantly switches between high and low purge POSSIBLE SOLUTIONS 1 Make sure that all access doors are fully closed Check door seals for leaks 2 You should increase the flowmeter setting until the Dual Purge System maintains a humidity level a few percent below the set point without switching to the high level purge PROBLEM The desiccator is le...

Страница 12: ...ra Universal PROBLEM The NitroWatch delivers a low pressure alarm POSSIBLE SOLUTIONS 1 Turn off the Dual Purge system using the back switch 2 Disconnect the N2 gas line 3 Open the flowmeter and regulator 4 Simultaneously press and hold the Set and Up buttons while turning on the Dual Purge system The display will show CAL Press Set to proceed to the next setting 5 Set under the CAL menu a Prg1 to ...

Страница 13: ... Gas Inlet Pressure 50 psi IsoDry NitroWatch Operating Temperature 50 F to 140 F Dimensions 11 W x 6 D x 3 H Power Requirements 12 VDC Supplied by Dual Purge Sensor Dimensions 11 2 x x 4 Case Material Stainless steel Display 3 digit LED display Electrical Connections Screw terminals Output 0 5 V Measuring Range 0 100 RH Accuracy at 20 C 2 RH Display Resolution 0 1 RH Temp Dependence 0 04 RH C Sens...

Страница 14: ...rately 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 damag...

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