Supplemental Manual
High-
IsoDry™ RH Control System
©
Copyright 2017 Terra Universal Inc. All rights reserved • Revised November 2020 • Document No. 1788-26
Terra Universal, Inc. • TerraUniversal.com • 800 S. Raymond Ave. • Fullerton, CA 92831 • TEL: (714) 578-6000 • FAX: (714) 578-6020
5
Before installation and operation, carefully unpack the desiccator and accessories and check for signs of damage or
missing parts. Wipe down with a particle-free cloth.
Installation requires a supply of clean, dry air or nitrogen (less than 5 ppm(v) H2O) and 1/4" polyethylene tubing. The
Dual Purge universal power supply operates on 110/120VAC, 60Hz or 220/240VAC, 50Hz with no required switch
settings. All grounded cabinets feature grounding terminals in the upper-right corner of the cabinet. For standard
grounding, simply connect the grounding terminal to your in-house ground.
IsoDry™ Dual Purge™ and IsoDry™ NitroWatch™ Set-Up
The NitroWatch 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 connect it to the desiccator’s
RH sensor.
3.
Use the 12V power cable to connect the IsoDry™ Gas Dilution Module to the “IsoDry Power” jack on the back of
the Dual Purge.
4.
Insert the provided cord plug into the “Door Switch” jack. Leave the “R/H Output” jack empty.
5.
Use ¼” tubing to connect the nitrogen gas supply to the “Gas In” port on the back of the Dual Purge.
6.
Use ¼” tubing to connect the “Gas Out” port on the back of the Dual Purge to the nitrogen inlet port on the
desiccator.
7.
Plug the 120VAC power cable into the Dual Purge and an appropriate grounded outlet.
Installation of at least one Terra Automatic RB Valve (Cat. #1600-60B) is required to protect against
permanent damage to seals and doors.
CAUTION
