Installation and Operating Guide
Smart® IsoDry™ Nitro-Watch™
©
Copyright 2021 Terra Universal Inc. All rights reserved. • Document No. 1800-19
Terra Universal, Inc. • TerraUniversal.com • 800 S. Raymond Ave. • Fullerton, CA 92831 • TEL: (714) 578-6000 • FAX: (714) 578-6020
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5.
Testing
Humidity sensor should be tested and replaced as necessary (about every 5 years under normal use).
6.
Trouble Shooting
Power Concerns
Problem: System Unresponsive
Possible Solutions:
1.
Inspect power cable leading from the unit. Make sure that it is fully connected to the unit’s power port.
2.
Make sure that the power cord is plugged into a functioning outlet of appropriate voltage.
3.
Replace if necessary.
RH Concerns
Problem: System stays in high-flow purge at all times
Possible Solutions:
1.
Make sure that all access doors are closed and that all sensor switches are making contact.
a.
Check door seals for leaks.
2.
Make sure RH sensor is reading RH correctly.
Operation Concerns
Problem: System delivers an obviously incorrect humidity reading
Possible Solutions:
1.
Disconnect and then reconnect the low-voltage cable connecting the humidity sensor to the Smart® Nitro-
Watch™ module.
2.
Check the sensor connection to the rear panel of the control module.
a.
If the connection is good and the unit still fails to deliver an accurate reading, contact Terra
Universal.
Problem: System delivers a low-pressure alarm.
Possible Solutions:
1.
Set the flowmeter to 7 SCFH, and set the regulator to 30 psi on the Dual Purge unit.
Data Logging
Problem: System does not transfer data to USB drive when USB drive is plugged in
Possible Solutions:
1.
Remove and re-insert USB drive.
2.
If LED status light flashes blue, there is not sufficient memory on the USB drive. Remove some data and try
again.
3.
The Smart® Nitro-Watch™ may not be compatible with your USB drive. Try a different make or model of
USB drive.