ETS 5478 User manual

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Self-Regenerating Dehumidification
System
Model 5478
Operating Manual

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TABLE OF CONTENTS
Model 5478 Self–Regenerating Dehumidification System
I. Important Safety Information................................................................................................................3
II. Description of Contents .......................................................................................................................4
III. SET-UP GUIDE ...................................................................................................................................4
IV. Quick Start Guide.................................................................................................................................6
V. Functionality...........................................................................................................................................7
VI. Maintenance/ Troubleshooting..........................................................................................................8
VII. Warranty..............................................................................................................................................9

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I. Important Safety Information
SAFETY INSTRUCTIONS
The equipment described in this Manual is designed and manufactured to operate within
defined design limits. Any misuse may result in electric shock, equipment damage, or
fire. To avoid injury and damage, the following rules should be observed for installation,
use and maintenance. Read the following safety instructions before operating the
instrument.
POWER
POWER CORD: Use only the power cord specified for this equipment and certified for the
country of use. If the power (mains) plug is replaced, follow the wiring connections
specified for the country of use. When installing or removing the power plug, hold the
plug, not the cord. The power cord provided is equipped with a 3-prong grounded plug (a
plug with a third grounding pin). This is both a safety feature to avoid electrical shock
and a requirement for correct equipment operation. If the outlet to be used does not
accommodate the 3-prong plug, either change the outlet or use a grounding adapter.
FUSES: Replace fuses only with those having the required current rating, voltage and
specified type such as normal blow, time delay, etc. DO NOT use makeshift fuses or
short the fuse holder. This could cause a shock or fire hazard or severely damage the
instrument.
OPERATION
CAUTION
DO NOT OPERATE WITH COVERS OR PANELS REMOVED. Voltages inside the
equipment consist of line (mains) voltages that can be anywhere from 100 to 240VAC.
DO NOT OPERATE WITH SUSPECTED EQUIPMENT FAILURES. If any odor or smoke
becomes apparent turn off the equipment and unplug it immediately. Failure to do so
may result in electrical shock, fire or permanent damage to the equipment. Contact the
factory for further instructions.
DO NOT IMPEDE THE DEVICE FROM VENTING. The dehumidification system is an open
loop systems that pumps air into the chamber. If the air output is impeded or the
chamber is not allowed to vent, pressure could build up and cause damage.
DO NOT USE IN ANY MANNER NOT SPECIFIED OR APPROVED BY THE
MANUFACTURER: Unapproved use may result in damage to the equipment or present an
electrical shock, injury, or fire hazard.

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II. Description of Contents
The Model 5478 Self-Regenerating Dehumidification System is assembled in a 6” W x
9.5” L x 3.5” H (15.25 x 24.1 x 8.5 cm) plastic enclosure with vibration isolating feet. The
power switch and indicator light are both located on the front panel of the enclosure.
Internally, the system consists of a dual tower compressed air dryer (molecular sieve)
and a 3-way solenoid valve to direct the dried air and a flow regulator to control the
output flow. The dryer and valve are installed inside the enclosure.
III. SET-UP GUIDE
Step 1 –Dry Air Output The dry air
output is located on the rear, center of
the unit (with ¼” Quick Connect fitting
and a flow regulator).
Step 2 –Attach Dry Air Tubing
Use ¼” OD tubing between this fitting
and chamber. Insert the tubing firmly to
ensure it is properly sealed and won’t
come loose.

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Step 3 –AC supply for circuitry
Power cord #1 is on the left. This
power source stays energized at all
times, Power is supplied to the air dryer,
(100VAC to 240VAC, single phase, 50-
60 Hz)
Step 4 –Controlled AC power input
Power cord #2 is on the right. The AC
power (100VAC to 240VAC, single
phase, 50-60 Hz), is to be connected to
a controlled AC circuit (see below).
When power Is applied, dehumidification
takes place.
Step 5 –Controlled AC power source
This AC line cord is normally plugged in
to the RH DECR outlet of a controller to
dry the chamber.
Step 6 –Connect Air Source. Connect
a Compressed air source to the air input
fitting on the top of the enclosure.
Regulate compressed air to 50 to 100
PSI.

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IV. Quick Start Guide
Step 1 -- Turn the Power ON. Turn the
power switch on the front panel to the
right, or “ON” position. The dryer will
begin operating immediately to produce
dry air. Some sounds will be made by
the mechanism –this is normal.
Off
On

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V. Functionality
The Model 5478 Self- Regenerating Dehumidification System is designed to reduce the relative
humidity in a chamber to less than 12% RH. When used with an Automatic Humidity Controller,
the humidity inside the chamber can be controlled to within ± 0.5% RH of the setpoint. Using the
ETS Model 5100 or Model 5200 Microprocessor Humidity Controllers, the chamber may be
maintained to within ±0.1% RH of the set-point.
Operation of the Model 5478 can be controlled manually or by a controller, such as in a
chamber. The system consists of a dual tower compressed air dryer (molecular sieve) and a 3-
way solenoid valve to direct the dried air and a flow regulator to control the output flow. The
dryer and valve are installed inside the enclosure. Desiccant is automatically renewed while the
System is running. The System never has to be shut down to renew or replace desiccant. All
moisture-laden air is evacuated through a muffler inside of the enclosure. When energized, the
solenoid valve allows dried air to flow to the output. The power light on the front panel indicates
when dried air is flowing to the output. The Model 5478 is an open-loop system.
1. The Power switch controls power from both power cords. When the unit is turned on, the
valve and dryer (inside the box) begin to operate immediately.
2. In a controlled system, The Dehumidify Controller activates the 3-way valve. A. When “OFF”,
the dry air being produced is vented inside the box. B. When “ON”, the dry air is directed to the
air output on the rear of the unit.
3. The indicator light (on the front of the unit) indicates when the 3-way valve is “ON”.
4. The 5478 is a Positive Pressure System. The unit will cause a slight positive pressure in an
enclosure if not adequately ventilated.
5. The dryer operates using a house air system at 50 to 100 psi. At 100 psi, twice as much dry
air is produced, reducing drying time.
6. Air is dried to a -40°F pressure dewpoint with 85° to 90°F saturated inlet.
7. The Model 5478 can be used to dry any inert gas @ pressure.

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V. Specifications
1. The average flow rate from the unit is 0.30 cfm (7.3 lpm) at 50 psi, 0.83 cfm at 100 psi.
2. The air will be dried to a minimum dewpoint of -40°F with a saturated input at 90°F.
3. Power –115 VAC/60 Hz @ 4.30Amps or less, or 230 VAC/50 Hz @ 2.15Amps or less
4. Working Pressure is 50-100 psig. Dryer unit may be used with compressed air systems up to
120 psig.
5. Dual column dryer uses a molecular sieve desiccant. 6. Output fitting is for ¼” OD tubing.
VI. Maintenance/ Troubleshooting

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VII. Warranty
Limited Warranties. Seller warrants that all goods manufactured and delivered hereunder shall (a)
conform to any samples, drawings, specifications or other written documents provided to Seller by
Buyer, or approved by Buyer to Seller and (b) be free from all defects in workmanship and material.
Buyer’s sole remedy against Seller for breach of either of the specifically mentioned warranty shall
be the repair or replacement, at Seller’s sole option, of the defective workmanship or material. Seller
expressly disclaims all other warranties, express and/or implied, including but not limited to those of
merchantability and fitness for a particular purpose. In no event shall Seller be liable, under either
warranty or otherwise, to Buyer in excess of the purchase price of the products paid to Seller by
Buyer. In no event shall Seller be liable for any loss or damage arising directly or indirectly from the
use of the product or for consequential or incidental damages. Seller’s specified warranties will
expire and lapse (i) for renewable items (such as gloves, iris ports and desiccants), sixty (60) days
from date of shipment and (ii) all standard equipment and otherwise nonrenewable items, one year
from date of shipment.