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
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PROBLEM:
The NitroWatch delivers an obviously incorrect humidity reading.
POSSIBLE SOLUTIONS:
1.
Check the NitroWatch sensor connection on the rear panel of the control module. If the connection to
the sensor is good, and the unit still fails to deliver an accurate reading, contact Terra 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 N
2
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 0 minutes
b.
“Prg2” to 5 seconds
c.
“Door” to 60
d.
“Beep” to ON
e.
“Glov” to OFF
6.
Re-connect the N
2
gas line, set the flowmeter to 7 SCFH, and set the regulator to 30 psi.
PROBLEM:
The NitroWatch displays the “door” alarm.
POSSIBLE SOLUTIONS:
1.
Make sure that a cord plug is present in the Door Switch input on the rear panel of the NitroWatch
control module.
