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 glove box is leaking.
POSSIBLE SOLUTIONS:
1.
Check the condition of the gaskets. If any is cracked or peeling, call Terra for a replacement.
PROBLEM:
Line pressure gauge does not display any pressure.
POSSIBLE SOLUTIONS:
1.
Supply gas is down, or for some reason is not reading the Dual Purge System. Check your supply line for kinks or
blockage.
2.
If your gas system utilizes a filter, it may be clogged and need to be replaced.
3.
Check the line pressure regulator to make sure it is not closed.
PROBLEM:
The internal positive pressure gauge does not indicate a positive pressure.
POSSIBLE SOLUTIONS:
1.
System may not be properly set up. Follow the operating procedures outlined in “Installation.”
2.
Check the doors for a possible leak.
PROBLEM:
The NitroWatch delivers an obviously incorrect humidity reading.
POSSIBLE SOLUTION:
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.
7.0 Specifications
Construction
• 1/4" clear plexiglass (or optional material you’ve
selected), with white translucent bottom.
• 8" x 8" door openings with gasketed doors on
both sides of unit.
• 8" round arm ports with wide flanges for
connecting glove assembly.
• Tapped 1/8" NPT inlet for connecting the Glove
Box Dual Purge System and 1/8" NPT system
pressure port.
Note:
Stainless steel work surface is recommended
on all polymer glove boxes to prevent scratching and
is especially important with static-dissipative PVC.
Dual Purge System
Overall Dimensions:
12"W x 11.25"D x 7"H
Weight:
16 lbs
Power Requirement:
120/220 VAC, 50/60 Hz, +10%/-15% 1/2 Amp. Universal power supply requires no power
switch settings.
Flowmeter:
0–20 SCFH
Line Pressure Gauge:
0–60 psi
Open Door Alarm:
Factory set at 60 seconds (adjustable)
Inlet/outlet:
1/4" OD polyethylene tubing
Case Material:
Stainless steel
Quick-Start Operating Guide
Series 100 Polymer Glove Box
© Copyright 2004 Terra Universal Inc. All rights reserved.
• Revised December 2004 • Document No. 1800-42
®
®
10
Terra Universal, Inc. • TerraUniversal.com • 700 N. Harbor Blvd. • Anaheim, CA 92805-2553 • TEL: (714) 526-0100 • FAX: (714) 992-2179
8"
H
F
I
15"
Single Model
(2 Arm Ports)
H
F
I
8"
15"
8"
15"
Twin Model
(4 Arm Ports)
M
M
D
N
A
Type
A
D
F
H
I
M
N
Single
16
1
/
4
24
35
20
3
/
8
11
1
/
2
8
9
Twin
16
1
/
4
24
59
20
3
/
8
11
1
/
2
8
9
All dimensions in inches.
Series 100 Positive-Pressure Glove Box
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