Yamato RE201 User manual

Rotary Evaporator
RE201
Instruction Manual
First Edition
Printed on recycled paper
Thank you for choosing RE series rotary
evaporators from Yamato Scientific Co., Ltd.
For proper equipment operation, please read
this instruction manual thoroughly before
use. Always keep equipment documentation
safe and close at hand for convenient future
reference.
Warning:
Read instruction manual warnings and
cautions carefully and completely before
proceeding.
Yamato Scientific America Inc．
Santa Clara，CA

TABLE OF CONTENTS
1. SAFETY PRECAUTIONS.............................................................................1
Explanation of Safety Symbols................................................................................................1
Symbol Glossary.....................................................................................................................2
Warnings & Cautions...............................................................................................................3
2. COMPONENT NAMES & FUNCTIONS........................................................4
Main Unit Overview.................................................................................................................4
3. ASSEMBLY & SETUP ..................................................................................5
Stand.......................................................................................................................................5
Motor & Control Units..............................................................................................................6
Steam Duct .............................................................................................................................7
Cooling Condenser .................................................................................................................8
Flasks .....................................................................................................................................9
Height Adjustment.................................................................................................................10
Hose Connections.................................................................................................................11
Power....................................................................................................................................12
4. OPERATION PROCEDURES.....................................................................13
5. TROUBLESHOOTING................................................................................14
Troubleshooting Guide..........................................................................................................14
Symptom...............................................................................................................................14
6. SERVICE & REPAIR...................................................................................15
7. SPECIFICATIONS ......................................................................................16
8. WIRING DIAGRAM.....................................................................................17
RE201...................................................................................................................................17
9. REPLACEMENT PARTS TABLE................................................................18
10. LIST OF HAZARDOUS SUBSTANCES....................................................19

1
1. SAFETY PRECAUTIONS
Explanation of Safety Symbols
A Word Regarding Symbols
Various symbols are provided throughout this text and on equipment to ensure
safe operation. Failure to comprehend the operational hazards and risks
associated with these symbols may lead to adverse results as explained
below. Become thoroughly familiar with all symbols and their meanings by
carefully reading the following text regarding symbols before proceeding
Warning
Caution
Signifies a situation which may result in minor injury (Note 2)
and/or property damage (Note 3.)
(Note 1) Serious injury is defined as bodily wounds, electrocution, bone
breaks/fractures or poisoning, which may cause debilitation requiring
extended hospitalization and/or outpatient treatment.
(Note 2) Minor injury is defined as bodily wounds or electrocution, which will not
require extended hospitalization or outpatient treatment.
(Note 3) Property damage is defined as damage to facilities, equipment, buildings or
other property.
Symbol Meanings
Signifies warning or caution.
Specific explanation will follow symbol.
Signifiies restriction.
Specific restrictions will follow symbol.
Signifies an action or actions which operator must undertake.
Specific instructions will follow symbol.
Signifies a situation which may result in serious
injury or death (Note 1.)

2
1. SAFETY PRECAUTIONS
Symbol Glossary
Warning
General Warning
Danger!: High
Voltage
Danger!:
Extremely Hot
Danger!:
Moving Parts
Danger!:
Blast Hazard
Caution
General Caution
Caution:
Electrical Shock
Hazard!
Caution: Burn
Hazard!
Caution: Do Not
Heat Without
Water!
Caution: May
Leak Water!
Caution: Water
Only
Caution: Toxic
Chemicals
Restriction
General
Restriction
No Open Flame
Do Not
Disassemble
Do Not Touch
Action
General Action
Required
Connect Ground
Wire
Level Installation
Required
Disconnect Power
Inspect
Regularly

3
1. SAFETY PRECAUTIONS
Warnings & Cautions
Warning
Never operate equipment near combustible gases/fumes.
Do not install or operate RE series unit near flammable or explosive gases/fumes. Unit is NOT fire or
blast resistant. Negligent use could cause a fire/explosion.
See “List of Hazardous Substances (P.25).
Always ground equipment.
Always ground this unit properly to avoid electric shock.
In the event of motor overload, terminate operation immediately.
Motor may shut off if it overheats and temperature exceeds 90°C. When this happens, turn down
speed dial and power off immediately. The source of overheating must be eliminated before
attempting to restart.
*Lack of bearing lubrication, etc. may cause them to seize, tripping a safety device which
shuts off the motor when excessively overloaded and heated to beyond 90°C.
Exercise caution when installing/removing flask clamps.
Flask holding clamps use spring action to hold them in place. Careless installation or removal of
these can break glass when snapping into place. Install and remove with care.
Use a cold trap for decompression (vacuum).
When using a hydraulic rotary vacuum pump or Yamato Scientific’s Handy Aspirator to decompress
the evaporation system, additional use of a cold trap (Yamato model CA301 or CA800) is strongly
recommended to protect vacuum pump from harmful substances and extend pump life.
Keep the vacuum seal in good repair.
Vacuum seal is a wear item and should be replaced at regular intervals to avoid vacuum leaks.
Greasing seal is not necessary, but recommend to extend seal life. Use silicon vacuum grease
and apply to rippled side of seal.
Cleaning.
Clean exterior with a soft, damp cloth. Never use benzene, paint thinner, scouring powder, scrubbing
brushes or other abrasives and solvents to clean unit. Superficial damage and/or discoloration, as well as
deformity to some components may result.
Caution
Extended nonuse and storage.
Turn off power and disconnect power cable during periods of nonuse or extended storage.

4
2. COMPONENT NAMES & FUNCTIONS
Main Unit Overview
RE201 (type A)
＊Some product specifications are subject to change without notice.
＊Above designs are intended to illustrate component interchangeability only.
RE201 (type B)
RE201 (type C)
Stand
Control Dial
Sample Feed Inlet
Power Switch
Stopcock
Cooling Condenser (type A)
Flask Clamp
Steam Duct Retainer
Flask Clamp
Flask Removal Tool
Motor Assembly
Evaporation Flask
Water Bath (BM200)
Lift Arm Handle
Receiving Flask
Cooling Condenser (type B)
Condenser Lid
Cooling Condenser (type C)

5
3. ASSEMBLY & SETUP
Stand
I. Assemble stand.（Arm jack is combination option）
1. Choose a stable location, such as a lab table or countertop. Unpack stand and position base on chosen
surface.
2. Insert support rod into stand base and tighten holding screw.
3. Install lift arm, if applicable, and motor support clamp onto the support rod.
a. Turn the lift arm handle counterclockwise to loosen.
b. Install the lift arm, lock collar and o-ring (Insert o-ring into the collar) onto the support rod.
c. Fit the motor support clamp onto support rod.
Support Rod
Stand Base
Holding Screws
O-Ring
Lock Collar
Lift Arm
Lift Arm Handle
Motor Support Clamp
Unlock
Lock
Be sure the arrow on the lift
arm assembly is pointing up.

6
3. ASSEMBLY & SETUP
Motor & Control Units
II. Install motor assembly (RE201)
1. Install motor by inserting the protruding bearing rod into the motor support clamp, making sure that the
flat surface of the rod faces the holding screw. Tighten holding screw securely.
2. Tilt the motor clock-wise about 45°. Tighten the tilt adjustment screw to “finger tight”.
If holding screws are not secure, vibration may
shake them loose, preventing accurate
measurements or causing motor to fall from stand,
possibly damaging equipment and/or breaking
glass components.
1. Fit contol unit onto support rod, above motor, and tighten holding screw securely.
Bearing
Rod
Motor Support Clamp
Tilt Adjustment
Holding Screw
Support Clamp
Holding Screw
Tilt Adjustment
Holding Screw
III. Install control unit.
Control Unit
Holding Screw

7
3. ASSEMBLY & SETUP
Steam Duct
IV. Install steam duct.
1. Before installing the steam duct, make sure that the required O-rings are in place, inside the duct opening.
If not, set them in their correct place on the glass steam duct as in figure 1 below.
2. Insert the steam duct from the right side (side tilted down) into the duct opening in the motor assembly.
3. Set the steam duct into the desired position with a minimum of 5mm between the blue flask removal device
and the steam duct retainer ring.
4. Tighten the steam duct retainer by turning clockwise. Be sure to tighten the retainer ring securely so the steam
duct does not slip.
＊To remove the steam duct, first loosen the steam duct retainer ring. Do not remove the duct retainer
ring completely or inner o-rings and collars may fall out.
●If inner o-rings and collars come out when installing or removing the steam duct, refer to figure 1
below to replace them.
O-rings
Collars
Flask Removal
Tool
Steam Duct
Min. 5mm
Steam Duct Retainer Ring
Rubber O-Ring
Figure 1
27mm
25mm
15mm

8
3. ASSEMBLY & SETUP
Cooling Condenser
V. Condenser retainer ring, coil ring and vacuum seal placement.
1. Remove the condenser retainer ring, coil ring and
vacuum seal, if they have not already been removed
from the left side (side tilted upward) of the motor.
2. Place the condenser retainer ring, then the coil
ring over the condenser mouth flange and place
the vacuum seal over the mouth with the seal
protruding inward, in whichever arrangement is
applicable (see images below).
* Apply silicon vacuum grease to rippled side of
vacuum seal, if desired.
Condenser Type A
Condenser Type B/C
VI. Install condenser.
While inserting the steam duct into the cooling condenser, place seal against the metal flange on motor
assembly and tighten the condenser retainer ring securely.
Be careful not to damage the vacuum seal when inserting the steam duct.
Condenser Type A Condenser Type B/C
●Removing coil ring from condenser flange
Grab the coil ring with the supplied Allen wrench, as shown in image below, in
order to remove the ring more easily.
Apply moderate pressure when removing ring. Using excessive force may
damage coil ring and/or glass components.
Coil Ring
Vacuum Seal
Coil Ring
Vacuum Seal

9
3. ASSEMBLY & SETUP
Flasks
IX. Install evaporation and receiving flasks.
●Evaporation Flask
1. Rotate blue flask removal tool upward toward the
motor assembly.
2. Place steam duct all the way into flask, and
carefully apply clamp.
●Receiving Flask
1. Place receiving end of cooling condenser or
applicable glass component all the way into flask and
carefully apply clamp.
●Easy evaporation flask removal.
Use the blue flask removal tool
1. Carefully remove clamp while supporting flask.
2. Turn removal tool counter-clockwise until evaporation flask is gently pushed from steam duct.
X. Install feed tube w/stopcock.
Assembly Complete!
Flask Removal Tool
Feed Tube

10
3. ASSEMBLY & SETUP
Height Adjustment
XI. Adjust height (RE201).
1. Loosen lock collar holding screw.
2. Turn lift arm handle counter-clockwise to loosen; move up or down to desired height (See images 1 & 2
below).
3. When desired position is determined, turn the lever clockwise and tighten securely (See image 3 below).
4. Re-position lock collar and tighten holding screw securely.
Re-tighten lock collar and arm handle securely. Neglecting to tighten one or both of
these items securely may result in motor assembly coming loose and bottoming out on
stand base, possibly causing damage to equipment and/or attached glass components.
Be cautious while adjusting lift arm with glassware attached. These components are
fragile and easily broken even by small impacts.
Image 1
Image 2
Image 3

11
3. ASSEMBLY & SETUP
Hose Connections
XII. Connect hoses.
Coolant Hoses
1. Remove plastic hose joints from threaded glass hose receptacles.
2. Moisten hose openings with water for easy attachment.
Do not use any type of lubricating oil.
3. Push hose ends over plastic joint ends (id=9mm).
4. Apply hose clamps to joints.
5. Thread the joints, with hoses attached, onto the proper receptacles on cooling condenser.
Vacuum Hoses
6. Connect vacuum hose to plastic joint.
(id=6mm) (no hose clamp necessary)
7. Thread joint onto cooling condenser vacuum receptacle.
＊Always connect the hoses to the plastic hose joints BEFORE threading the joints onto the glass
receptacles. Attempting to connect hoses with the joints installed on the condenser may damage or
break the glass receptacles. NEVER attempt to connect hoses directly to threaded glass receptacles,
except where otherwise noted.
●Glass A hose connections
●Glass B hose connections
●Glass C hose connections
Connect the coolant supply/drain hose. (id= 18mm)
Coolant Hoses
Vacuum Hose
Coolant Hoses
Vacuum Hose
Vacuum Hose
Overflow

12
3. ASSEMBLY & SETUP
Power
XIII. Connect power cable.
1. Connect motor power cable to the receptacle on back of main unit.
2. Connect the power cable to 115V AC power source. Always use a grounded outlet.
XIV. Setup water bath.
Position water bath in front of main unit or stand.
＊Refer to instruction manual supplied with water bath for assembly and setup details.
BM401
BM200
BM100

13
4. OPERATION PROCEDURES
1. Cooling Condenser
●Condenser type A and B:
Circulate water or alcohol through the cooling condenser, using Yamato Scientific CF model cooling
circulators or other applicable device.
●Condenser type C
Fill with dry ice or alcohol.
2. Evaporation Flask
Fill flask with process sample fluid.
＊Do NOT fill evaporation flask to more than half capacity. Fluid collected in the receiving flask should
also be kept within half capacity.
3. Water Bath
Set temperature as required. Allow bath to reach temperature setting and stabilize.
4. Position flask and start operation.
1. When the bath stabilizes at temperature setting, adjust height (see P.14 & 15) to maneuver evaporation
flask down and into the bath.
2. Turn main power switch on the right side of control box to ON, and rotate the control dial until desired
speed is reached.
3. Turn on vacuum device (if required) to accelerate evaporation process.
●Process Sample Feed
Sample fluid may be fed during operation without having to remove evaporation flask.
1. Connect an appropriate teflon tube to the sample feed inlet (id=6mm).
2. Slowly rotate the feed stopcock handle. Sample fluid is drawn into the flask.
Stop flask rotation before lifting flask out of bath. Rotating flask out of bath may spin off
hot water, possibly causing scalding injuries.
5. Operation end
When process has finished as desired, repressurize (stop vacuum) by opening the feed stopcock before
turning off the vacuum pump and removing the evaporation or receiving flasks.
Power Failures
Unit will restart when power is restored. If unit is to be unattended while power failure is in progress, turn off
all power switches related to RE unit operation.

14
5. TROUBLESHOOTING
Troubleshooting Guide
Symptom
Possible Causes
Solutions
Digital display on control
unit remains blank.
●Power is off
●Power cable is disconnected
●Fuse is blown
●Confirm that power switch is ON
●Connect power cable to motor receptacle
●Connect power cable to proper outlet
●Replace fuse (2A)
Evaporation flask does
not rotate
●Control unit power switch is
OFF
●Control dial is to “min”
●Motor power cable is
disconnected
●Improper steam duct installation
causing slippage
●Flask is obstructed
●Turn main switch ON
●Rotate dial to appropriate speed
●Insert power cable securely into motor
receptacle
●Tighten steam duct retainer ring securely
●Eliminate obstruction
Weak or no
decompression (vacuum)
●Vacuum seal is worn
●Vacuum seal installed
backwards
●Cooling condenser retainer is
not tightened securely
●Glass component is cracked or
broken
●Glass components not securely
connected
●Vacuum hose or joint is leaking
●Replace vacuum seal
●Reinstall vacuum seal
●Tighten condenser retainer ring
●Replace broken glass component
●Reconnect components securely
●Apply vacuum grease to joints
●Check, reconnect hoses and/or joints
If problem(s) persist, contact a local Yamato dealer or sales office for assistance.

15
6. SERVICE & REPAIR
Requests for Repair
When a problem occurs, terminate operation immediately, turn off power switch and disconnect power
cable.
Contact a local dealer or Yamato sales office for assistance.
The following information is required for all repairs.
● Model name
● Serial Number
● Date (year/month/day) of purchase
● Description of problem in as much detail as possible
Guaranteed Supply Period for Repair Parts
Guaranteed maximum supply period for repair parts is 7 (seven) years from date of discontinuation for
RE200/500 rotary evaporators. “Repair parts” is defined as components which, when installed, allow for
continued unit operation.

16
7. SPECIFICATIONS
Type
RE200
Rotation Speed *1
20-180rpm
Drive system
Worm gear
Glass joints
24/40 Steam Duct, S35/20 Receiving Flask
Height adjustment mechanism
Lift arm
Motor
25W High Torque Sparkless Induction
Glass sets
Type A, Type B, Type C
Safety device
Overcurrent protection (fuse)
Exterior dimensions (W×D×H)*2
16.54×11.42×33.03 (inches)
42×29×83.9 (cm)
Weight
24.3 lb (11kg)
Power rating (RE only)
AC115V±10% 50/60Hz 0.6A
Options
●Evaporation Flask (opaque & frosted 24/40)
2000ml/500ml/300ml/200ml/100ml
●Receiving Flask ( opaque & frosted S35/20)
2000ml/500ml/300ml
●Joint (opaque & frosted )
24/40-24/40, 24/40-19/22, 24/40-14/20
●Trap Ball (opaque & frosted )
24/40-24/40, 24/40-19/22, 24/40-14/20
Combination Options
●Water Bath BM100/200/401
●Lift Arm Jack JK200
●Vacuum Regulator VR100
*1 Rotation speed is based on performance with (A, B or C type) glass set installed and operating under rated
power, with no load.
*2 Glass sets not included.

17
8. WIRING DIAGRAM
RE201
Symbol
Component
P
Power Plug
SW
Power Switch
SPC
Speed Control Pack
M
Motor
G
Tachogenerator
C
Motor Condenser
VR
Set Rotation Speed Resistor
CN
Drive Socket
MC
Drive Cable
F
Fuse (2A)
P
SW
CN
SPC
MC
F
VR
C
M