Barnstead Thermolyne Corporation EASYpure RF 1051 Series User manual

1
EASYpure®RF
OPERATION MANUAL
AND PARTS LIST
Series 1051
Model D7032 Model D7031 Model D7033 Model D7033-33
100 Volts 120 Volts 240 Volts 230 Volts
BARNSTEAD|THERMOLYNE CORPORATION
LT1051X1 • 8/22/97

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Table of Contents
Safety Information ................................................................................................................................3
Alert Boxes ............................................................................................................................................3
Warnings ................................................................................................................................................4
Introduction ............................................................................................................................................5
Specifications ........................................................................................................................................6
Dimensions and Clearance requirements. ........................................................................................6
Feedwater Requirements ..................................................................................................................6
Product Water....................................................................................................................................6
Electrical Requirements ....................................................................................................................6
Environmental Conditions..................................................................................................................6
Declaration of Conformity ..................................................................................................................7
Unpackaging and Installation ................................................................................................................8
Initial Operation....................................................................................................................................10
Cartridge Installation........................................................................................................................10
Storage Reservoir Filling and Cartridge Rinse Up ..........................................................................10
Normal Operation ................................................................................................................................11
Water Draw off ................................................................................................................................11
Feedwater Replenishment ..............................................................................................................11
Run and Standby Modes..................................................................................................................11
Maintenance and Servicing..................................................................................................................13
Cartridge Replacement (See Figure 3, page 7) ..............................................................................13
Cartridge Removal ........................................................................................................................13
0.2 Micron Filter Replacement ........................................................................................................13
Ventgard Cap Replacement ............................................................................................................14
General Cleaning Instructions..........................................................................................................14
System Sanitization ........................................................................................................................14
Fuse Replacement ..........................................................................................................................16
Printed Circuit Board Replacement (See Figure 6) ........................................................................16
Cleaning the Resistivity Cell............................................................................................................18
Shutdown ........................................................................................................................................19
Troubleshooting ..............................................................................................................................20
Parts and Supplies ..............................................................................................................................22
Ordering Procedures............................................................................................................................24
Warranty ..............................................................................................................................................28
Table of Contents

3
Safety Information
Your Barnstead EASYpure™ RF has been designed with
function, reliability, and safety in mind. It is your respon-
sibility to install it in conformance with local electrical
codes. For safe operation, please pay attention to the
alert boxes throughout the manual.
Warning
Warnings alert you to a
possibility of personal injury.
Caution
Cautions alert you to a
possibility of damage to the
equipment.
Note
Notes alert you to pertinent
facts and conditions.
Alert Signals
Safety Information

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Warnings WARNING
A. To avoid electrical shock, always:
1. Use a properly grounded electrical outlet of correct voltage and current handling capacity.
2. Do not place the EASYpure RF directly over equipment that requires electrical service. Routine main-
tenance of this unit may involve water spillage and subsequent electrical shock hazard if improperly
located.
3. Replace fuses with those of the same type and rating.
4. Do not disassemble water lines or remove cartridges where spilled water could contact equipment
that requires electrical service. Disassembly of water lines and removal of cartridges will result in
water spillage. Electrical shock hazard could result.
5. Disconnect from the power supply prior to maintenance and servicing.
B. To avoid personal injury:
1. Do not use in the presence of flammable or combustible materials; fire or explosion may result. This
device contains components which may ignite such materials.
2. This device is to be used with water feeds only. Sanitizing/cleaning agents must be used in compli-
ance with instructions in this manual. Failure to comply with the above could result in explosion and
personal injury.
3. Avoid splashing disinfecting solutions on clothing or skin.
4. Ensure all piping connections are tight to avoid chemical leakage.
5. Carefully follow manufacturer’s safety instructions on labels of chemical containers and material safe-
ty data sheets.
6. Refer servicing to qualified personnel.

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Introduction
The Barnstead EASYpure RF is a batch-fed water purifi-
cation system designed to provide Type I reagent-grade
water with extremely low organic carbon content. It uses
a two-stage deionization process combined with a 0.2
micron filter to polish pretreated water (distilled, deion-
ized, or reverse osmosis) to produce water with a resis-
tivity of up to 18.3 megohms-cm and with a total organic
carbon content of less than 5 ppb. Water resistivity is
continuously sensed by a resistivity cell and displayed
on a digital display.
Introduction
Figure 1 EASYpure RF Front Figure 1 EASYpure RF Back
EASYpure
18.3
Barnstead
Fill Port
Ventgard Cap Airborne Filter
Resistivity Monitor
0.2 micron filter w/bell
Sight Gauge
Draw-off Valve Lever

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Specifications
Dimensions and Clearance requirements.
EASYpure RF dimensions - 12" W X 19" D X 18 1/8" H (30.5 cm X 48.3 cm X 46.0 cm).
Clearances:
Sides - 4" (10.1 cm) minimum to allow air flow
Above - 12" (30.5 cm) minimum for reservoir replenishment
Cartridge replacement requires that you be able to access the back of the unit and open the cartridge
access door (total depth, unit + open door, = 34") (86.4 cm).
Storage Reservoir Capacity - Approximately 6.5 liters usable, 7.0 liters total
Feedwater Requirements
The EASYpure RF requires water pretreated by either distillation, deionization or reverse osmosis.
TOC - Less than 1.0 ppm.
Turbidity - Less than 1.0 N.T.U.
Temperature - 40°F - 120°F (4.4°C - 48.9°C)
Resistivity (Minimum):
Distilled - 300,000 Ohm-cm
Deionized - 1.0 Megohms-cm
Reverse osmosis - 100,000 Ohm-cm
Product Water
Quality Resistivity: ASTM Type I
TOC: Less than 5.0 PPB
Flow Rate: 0.5 LPM with a new final filter
Electrical Requirements
The EASYpure RF is equipped with a power cord to be plugged into an electrical outlet of the appropriate volt-
age.
Model D7032 - 100 VAC +5% -10%, 47-63 Hz.
Model D7031 - 120 VAC +5% -10%, 47-63 Hz.
Model D7033 - 240 VAC +5% -10%, 47-63 Hz.
Model D7033-33 - 230 VAC +10% -10%, 47-63 Hz.
Environmental Conditions
Operating: 4°C - 49°C; 20% to 80% relative humidity, non-condensing. Installation Category II (over-
voltage) in accordance with IEC 664. Pollution Degree 2 in accordance with IEC 664.
Altitude limit: 5,000 meters.
Storage: -25°C to 65°C; 10% to 85% relative humidity.
Specifications

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Declaration of Conformity (-33 models only)
Barnstead|Thermolyne hereby declares under its sole re-
sponsibility that this product conforms with the technical
requirements of the following standards:
EMC: EN 50081-1 Generic Emission Standard;
EN 50082-1 Generic Immunity Standard;
Safety: IEC 1010-1-92 Safety requirements for
electrical equipment for measurement, control and
laboratory use; Part I: General Requirements
per the provisions of the Electromagnetic Compatability
Directive 89/336/EEC, as amended by 92/31/EEC and
93/68/EEC, and per the provisions of the Low Voltage
Directive 73/23/EEC, as amended by 93/68/EEC.
The authorized representative located within the Europe-
an Community is:
European Manager
Barnstead|Thermolyne
Saabrückener Str. 248
D-38116 Braunschweig
Germany
Copies of the declaration of conformity are available
upon request.
SPECIFICATIONS

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Unpackaging and Installation
1. Remove the unit from its shipping container. Ensure
that the Ventgard®reservoir cap and power cord are
removed from the packaging materials before discard-
ing.
EASYpure High purity/Low TOC Cartridge D50229
Pretreatment Cartridge DI Feed D50230
Pretreatment Cartridge R/O - Distilled Feed D50231
Ultrapure Mixed Bed Cartridge D50233
2. Place the EASYpure RF on a bench top convenient to
your work area, noting the Clearance Requirements.
3. Using 1/2" I.D. tubing and tubing connectors (user
supplied), connect the overflow drain tubing (lower
right-hand corner of the rear of the unit) to an atmo-
spherically vented sink or floor drain. If an atmospheri-
cally vented sink or floor drain is not accessible, a
bucket or other container may be placed on the floor
beneath the EASYpure RF’s location and emptied
when full.
NOTE
Cartridges and the 0.2 micron final filter are not
provided with the EASYpure RF and must be
ordered separately.
WARNING
Do not place the EASYpure RF directly over
equipment that requires electrical service. Rou-
tine maintenance of this unit may involve water
spillage and subsequent electrical shock hazard
if improperly located.
NOTE
Overflow will occur only as a result of overfilling
by the user.
Unpackaging and Installation

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UNPACKAGING AND INSTALLATION
Figure 3 Cartridge Installation
O-rings
Upper end cap
Flanges
O-rings
Lower end cap

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Initial Operation
Cartridge Installation
1. Open cartridge access door in the rear of the unit by
pushing the door latch down.
2. Remove a new Pretreatment cartridge (part number
D50230 or D50231) from its plastic bag.
3. Wet the o-rings on both end caps.
4. Press the upper end cap into the upper right position
until it bottoms out.
5. Lower the cartridge and insert the lower end cap into
the lower socket until it is firmly seated.
6. Repeat steps 1 - 5 with the EASYpure High Purity/Low
TOC or Ultrapure cartridge, placing it in the left-hand
position.
7. Close cartridge access door.
Storage Reservoir Filling and Cartridge Rinse
Up
To fill the reservoir:
1. Remove the molded plastic Ventgard cap.
2. Carefully pour pretreated feedwater into the reservoir
until the water is level with the top of the sight gauge
on the front of the unit. Replace the Ventgard cap.
3. Plug power cord into the power entry module on the
left-hand side of the rear of the unit and plug into a
live outlet. Turn on power entry module switch.
4. Press “START” and open draw-off valve.
5. Rinse one complete reservoir volume of water through
the cartridges to drain.
6. Remove a new 0.2 micron filter and bell assembly
from its bag and insert it into the Luer fitting. Gently
turn it clockwise until it is fully seated in the Luer fit-
ting.
7. Refill the reservoir with pretreated water.
8. Flush second reservoir volume of water through the fil-
ter.
NOTE
The upper end cap is the one with the right-an-
gle turn and the two flanges. The lower end cap
extends straight out from the cartridge. (See
Figure 3.)
NOTE
The two flanges on the end cap should be able
to slide down on each side of the keyway wall.
NOTE
Cartridge rinse up procedure must be followed
after each cartridge and/or filter replacement.
NOTE
In the event that you overfill the feedwater res-
ervoir, allow the excess water to drain from the
reservoir through the overflow drain tubing be-
fore replacing the Ventgard cap. This will pre-
vent wetting the filter element.
Initial Operation

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Normal Operation
1. Fill the feedwater reservoir with water and replace
the cap.
2. Turn main power on at power entry module.
3. Press the “START” button on the front of the
EASYpure RF.
The EASYpure RF’s pump will begin to run and the
Purity meter will display the resistivity of the water in
megohm-cm.
4. Allow the water’s resistivity to rise to the desired
purity before drawing off water.
Water Draw off
1. Remove the protective cap from the filter bell.
2. Depress the draw-off lever.
3. When draw off is complete, lift the draw-off lever
and replace the protective cap on the filter bell.
Feedwater Replenishment
As water is drawn-off from the EASYpure RF, the feed-
water reservoir will require refilling. To refill the reservoir:
1. Remove the Ventgard cap. Do not allow water to
enter the Ventgard cap.
2. Pour pretreated feedwater into the feedwater reser-
voir until the water is level with the top of the sight
gauge.
3. Replace the Ventgard cap.
4. Allow the water’s resistivity to rise to the desired
purity before drawing off water.
NOTE
For more demanding applications where low TOC
water is required, a third reservoir volume rinse of
the cartridges and filter may be necessary.
NOTE
On initial startup, the purity meter may display
“ERR.” This is caused by air in the cell and should
be replaced by a resistivity reading almost imme-
diately. If “ERR” does not go out after the pump
has run for a minute or if it appears any time while
the EASYpure RF is in operation, refer to the
Troubleshooting section of this manual.
Normal Operation

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Run and Standby Modes
Since not all qualities of permissible feedwater will reach
maximum resistivity after one pass through the unit’s car-
tridges (especially as the cartridges near exhaustion), the
EASYpure RF has two operational modes.
In the run mode, the pump continuously recirculates water
through the cartridges. This is the mode that the unit enters
upon startup. If water will be drawn from the EASYpure RF
on a continuous basis throughout the day, it is recommend-
ed that the EASYpure RF be left in the run mode. This will
ensure that the feedwater added to refill the EASYpure
RF’s reservoir will be up to maximum purity when it is
needed. In the run mode, the purity meter display indicates
the resistivity of the water available for draw off.
In standby mode, the pump runs for 10 minutes out of
every hour (i.e. ten minutes on, fifty minutes off). If water
will be drawn from the unit only infrequently, it is recom-
mended that the unit be put into standby mode. To put the
unit into standby mode, press the “STANDBY” button on
the front of the unit. The purity meter’s digital display will
display “Sby” to indicate that the unit is in standby mode.
NORMAL OPERATION

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Maintenance and Servicing
Cartridge Replacement (See Figure 3, page 9)
The frequency with which you will need to replace car-
tridges is dependent on your feedwater’s characteristics
and your purity requirements. Replace the cartridges
when the product water purity drops below acceptable
levels of resistivity or when organic levels become too
high.
Cartridge Removal
1. Disconnect the unit from the power supply.
2. Open the cartridge access door in the rear of the
unit by sliding the latch down and pulling the door
toward you. The door will swing down.
3. Grasp one of the cartridges at the bottom and pull it
straight up to disconnect the lower end cap from
the lower socket.
4 Move cartridge upward until upper socket is in key-
hole of keyway. (See Figure 3.)
5. Pull cartridge straight out from unit to disconnect
upper end cap from upper socket.
6. Repeat steps 3 - 5 with the other cartridge.
7. Discard the used cartridges. (See note below.)
8. Install new cartridges and rinse according to the in-
structions for Cartridge Installation in the Initial
Operation section (page 8).
0.2 Micron Filter Replacement
Replace the 0.2 micron filter whenever any of the follow-
ing conditions occur: every 30 days, the product water
flow rate is reduced or bacteria break through. The 0.2
micron filter is shipped assembled with a bell. To replace
the 0.2 micron filter assembly:
1. Remove the old 0.2 micron filter assembly by turn-
ing it counter-clockwise until it is free from the Luer
fitting.
WARNING
Disconnect from the power supply prior to main-
tenance and servicing.
Disassembly of water lines and removal of car-
tridges will result in water spillage. Do not per-
form these operations where spilled water could
contact equipment that requires electrical service.
Electrical shock hazard could result.
Refer servicing to qualified personnel.
NOTE
The cartridges will still contain water when re-
moved. Therefore, you will want to have a sink,
bucket or other waterproof container available to
place them in after removal.
NOTE
A small amount of water will drain from the car-
tridge when it is disconnected from the lower
socket. Plug the cartridge’s lower opening with
your finger to minimize water spillage while you
finish removing the cartridge.
NOTE
Used cartridges may be recycled. See P.U.R.E. in-
formation packed with new cartridges.
Maintenance and Servicing

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2. Remove the new 0.2 micron filter assembly from its
bag and insert it into the Luer fitting. Gently turn it
clockwise until it is fully seated in the the Luer fitting.
3. Rinse at least one reservoir volume of water through
the filter to drain prior to using the product water.
Ventgard Cap Replacement
The purifying media and filter in the Ventgard filter element
have a limited capacity. Therefore, the Ventgard cap should
be replaced every 90 days. The Ventgard cap is shipped as
a complete unit; replacement involves simply removing the
new Ventgard cap from its plastic storage bag and placing
it on the reservoir. A Ventgard cap can be stored in a cool,
dry place almost indefinitely, provided its plastic storage
bag has not been opened.
General Cleaning Instructions
Wipe exterior surfaces with a lightly dampened cloth con-
taining mild soap solution.
System Sanitization
Frequency of cleaning is difficult to determine because of
variability in feedwater and usage. Cleaning is necessary
when residual deposits are evident inside the feedwater
reservoir or if a new 0.2 micron filter clogs rapidly after in-
stallation even though the cartridges were properly rinsed
before the 0.2 micron filter was installed. To sanitize the
EASYpure RF, the 0.2 micron final filter and the purification
cartridges must be removed. The purification cartridges
must be replaced with empty cartridges. These must be or-
dered separately. Contact Barnstead|Thermolyne and order
part number D7034.
1. Drain the system.
a. Place the filter over a sink or place a bucket or
other suitable large container under the filter and
draw off water as described under Water Draw
off in the Operation section of this manual.
Draw off water until the water level in the feed-
water reservoir is lowered to the point that the
pump protector switch disables the pump. Lift
draw-off valve to closed position.
b. Disconnect the unit from the power supply.
CAUTION
Do not overtighten the 0.2 micron filter assem-
bly onto the Luer fitting or use excessive force
in seating it. The filter and/or Luer fitting can be
damaged by overtightening or excessive force.
NOTE
If a newly installed 0.2 micron filter clogs rapidly
after installation, the EASYpure RF may need to
be sanitized to remove bacterial contaminants.
See System Sanitization, page 14.
MAINTENANCE AND SERVICING

15
c. Turn the unit around to provide access to the
drain plug on the lower edge of the back
panel.
d. Place the drain plug over a sink, or place a
bucket or other suitable large container under
the drain plug. Remove the drain plug by turn-
ing it while pulling until it comes out.
e. Drain remaining water from the reservoir and
system.
f. Replace the drain plug, taking care to fully in-
sert it into the drain tubing.
g. Remove cartridges and filter and install empty
cartridge tubes (part number D7034) accord-
ing to the instructions in Cartridge
Replacement (page 10).
2. Remove Ventgard cap and pour 6 liters of pretreat-
ed feedwater into reservoir.
3. Add 10ml to 20ml of household chlorine bleach
(5.25% sodium hypochlorite) to reservoir.
4. Connect the unit to the power supply. Press the
“START” button to turn unit on.
5. Allow the unit to recirculate the disinfecting solution
for thirty minutes. Cycle the draw-off valve to sani-
tize the valve.
6. Drain the system as described in step 1 of this sec-
tion.
7. Refill the feedwater reservoir with feedwater and re-
circulate the water through the system for ten min-
utes.
8. Drain the system as described in step 1 of this sec-
tion.
9. Remove the empty cartridge tubes according to the
instructions in the Cartridge Removal section.
Drain and retain the empty cartridge tubes for
future use.
NOTE
Drain plug is not attached to unit; use care when
removing it over an open drain to avoid dropping it
into the drain.
WARNING
Avoid splashing disinfecting solutions on clothing
or skin.
Ensure all piping connections are tight to avoid
chemical leakage.
Ensure that overflow drain tubing is directed to
drain to avoid chemical leakage during disinfect-
ing.
Ensure adequate ventilation.
Carefully follow manufacturer’s safety instructions
on labels of chemical containers and material
safety data sheets.
MAINTENANCE AND SERVICING

16
10. Install and rinse new cartridges according to the in-
structions in the Cartridge Installation section. Do
not reinstall used cartridges or 0.2 micron filter (they
may contain large amounts of bacteria.)
11. Reconnect to the power supply and press the
“START” button.
Fuse Replacement
1. Disconnect the EASYpure RF from the power supply
and remove the reservoir and cap assembly.
2. Remove the power cord from the power entry module.
3. Remove the screws securing the EASYpure RF’s cov-
er.
4. Remove the cover by lifting it straight up.
5. Pull out the fuse drawer located in the power entry
module on the back left-hand side of the unit.
6. Remove old fuses and replace with fuses of the same
type and rating. (See Parts Listing, page 18.)
7. Replace fuse drawer.
8. Replace cover and power cord and reservoir cap as-
sembly.
9. Reconnect unit to power supply.
Printed Circuit Board Replacement (See Fig-
ure 6)
1. Disconnect the unit from the power supply.
2. Remove the power cord from the power entry module.
3. Remove the reservoir cap and the screws securing
the EASYpure RF’s cover.
4. Remove the cover by lifting it straight up.
5. The filter and the Luer fitting.
6. Remove the screws securing the front cover. Remove
the front cover.
MAINTENANCE AND SERVICING

17
7. Disconnect the membrane switch lead from the
printed circuit board. (See Figure 6.)
8. Disconnect the resistivity cell lead from the printed
circuit board.
9. Disconnect the printed circuit board relay plug by
squeezing the retaining clip while pulling the plug
straight out from the frame.
10. Remove the nuts holding the printed circuit board in
place.
11. Remove the printed circuit board. Disconnect power
supply (3 wires) from printed circuit board.
12. Reconnect power supply to new printed circuit
board and install the new printed circuit board.
Refer to electrical diagrams.
13. Reconnect the resistivity cell lead and printed circuit
board relay plug.
14. Reconnect the membrane switch lead.
15. Reinstall the front cover.
16. Retape the Luer fitting with new Teflon®tape and
reinstall fitting.
17. Reinstall the EASYpure RF’s cover.
18. Reconnect the power cord to the unit and the unit
to the power supply.
MAINTENANCE AND SERVICING

18
Cleaning the Resistivity Cell
1. Disconnect the unit from the power supply.
2. Remove the power cord from the power entry module.
3. Remove the reservoir cap and the screws securing
the EASYpure RF’s cover.
4. Remove the cover by lifting it straight up. Remove the
filter and Luer fitting. Remove the front cover.
5. Remove the screw holding the cell-cable retaining clip.
6. Disconnect the cell lead from the printed circuit board
and gently pull the cable out of the EASYpure RF’s
frame.
7. Unscrew and remove the cell.
8. Carefully remove the O-ring before cleaning the cell.
Remove the cell bushing.
9. Wash the cell in a mild detergent solution or a 10%
Hydrochloric or Sulfuric acid solution (follow acid man-
ufacturers recommended handling procedure). This
may be done in an ultrasonic cleaner or with a soft
brush.
10. Thoroughly rinse the cell in deionized or distilled water
following the detergent or acid cleaning.
11. After cleaning, reinstall and check the o-ring on cell;
replace if necessary.
12. Reinstall the cell into the cell well and hand tighten.
Reroute the cable up through the housing and recon-
nect. Refer to Figure 6 for proper position.
CAUTION
The cell electrodes are etched to improve wet-
ting characteristics. Do not mechanically abrade
or damage this surface (i.e. do not clean with a
wire brush, sandpaper, etc.).
CAUTION
Do not immerse the entire cell assembly in
cleaning solution, only the electrode portion.
MAINTENANCE AND SERVICING
Figure 6 Printed Circuit Board
Pins for Resistivity
Cell on back
Pins for
Membrane Switch Lead
Receptacle for
PCB Relay plug
Nuts

19
13. Reinstall the screw holding the cell-cable retaining
clip. Replace the front cover. Retape the Luer fitting
with new Teflon®tape and reinstall fitting. Replace
the top cover.
14. Reconnect the power cord to the unit and the unit
to the power supply.
Shutdown
If the EASYpure RF is to be shut down for an extended
period of time, the unit should be completely drained and
the cartridges removed to prevent the growth of bacteria.
If the system has remained inactive and full of water,
then the unit should be drained, sanitized and new car-
tridges installed prior to use.
MAINTENANCE AND SERVICING

20
Troubleshooting
Problem Possible Causes Solutions
EASYpure RF completely No electrical power to Ensure that the EASYpure RF
inactive. (pump not operating, EASYpure RF. power cord is connected
control panel not lit, etc.). to a live power source and
completely plugged into electrical outlet.
Make sure power entry module switch is on.
Fuses blown. Replace the fuses as indicated
in the Fuse Replacement section (page 13).
Pump runs, but no display Main PCB and display PCB Disconnect unit from power.
(no digital display). not connected. Check and reconnect boards.
Pump does not run. Display lit. Low water level in feedwater Replenish feedwater.
reservoir.
Pump worn out or defective. Replace pump.
Display reads “Err” when Resistivity cell lead Check resistivity cell lead.
checking resistivity. disconnected.
Air in system. Purge air from system by drawing
off water according to the instructions in the
Operation section (page 9).
Resistivity cell dirty. Clean cell and reinstall (page 15).
Recirculated water will not Exhausted cartridge. Replace the cartridges as indicated in the
rinse up to desired purity level. Cartridge Replacement section (page 10)
Cartridges out of order. Install the cartridges in the proper order
as indicated In the Cartridge
Installation section (page 8).
Reduced or no product flow 0.2 micron final filter clogged. Replace the 0.2 filter assembly
from the 0.2 filter assembly. as indicated in the 0.2 Micron
Filter Replacement section (page 11).
Troubleshooting