Shellab SWBR27-2 User Manual

WATER BATHS

MODELS: SWBR17 SWBR17-2

SWBR27 SWBR27-2

Previously designated as

WS17 WS17-2
WS27 WS27-2

RECIPROCATING WATER BATH

INSTALLATION AND OPERATION MANUAL

03/2014

4861582

Sheldon Manufacturing Inc.
P.O. Box 627

Cornelius, Oregon 97113
EMAIL: [e-mail]

INTERNET: http://www.Shellab.com
PHONE: [phone] [phone]
FAX: [phone]

2 Reciprocating Water Bath

TABLE OF CONTENTS

INTRODUCTION ........................................................................................................................................... 4

General Safety Considerations ........................................................................................................ 4

RECEIVING YOUR UNIT .............................................................................................................................. 5

Inspection Guidelines ....................................................................................................................... 5

Returning Shipment.......................................................................................................................... 5

Recording Data Plate Information .................................................................................................... 5

GRAPHIC SYMBOLS .................................................................................................................................... 6

INSTALLATION ............................................................................................................................................. 7

Environmental Conditions ................................................................................................................ 7

Power Source ................................................................................................................................... 7

Location ............................................................................................................................................ 7

Lifting and Handling .......................................................................................................................... 7

Oscillation Rack ............................................................................................................................... 7

Cleaning and Decontamination ........................................................................................................ 7

CONTROLS OVERVIEW .............................................................................................................................. 8

Power Switch .................................................................................................................................... 8

Main Temperature Controller ........................................................................................................... 8

Over Temperature Safety Thermostat (OTP) .................................................................................. 8

Safety Light ...................................................................................................................................... 8

Oscillation Controller ........................................................................................................................ 9

Circuit Breaker and Fuse ................................................................................................................. 9

OPERATION ............................................................................................................................................... 10

Turning On the Unit ........................................................................................................................ 10

Bath Cover ..................................................................................................................................... 10

Setting Main Temperature Control ................................................................................................. 10

Calibrating the Main Temperature Control ..................................................................................... 11

Setting the Over Temperature Safety Thermostat ......................................................................... 11

Setting Oscillation Control .............................................................................................................. 11

Setting Samples in Place ............................................................................................................... 11

Bath Cover Assembly ..................................................................................................................... 13

MAINTENANCE .......................................................................................................................................... 14

Draining Tank ................................................................................................................................. 14

Cleaning ......................................................................................................................................... 14

Storage ........................................................................................................................................... 14

TROUBLESHOOTING ................................................................................................................................ 15

PARTS LIST ................................................................................................................................................ 18

UNIT SPECIFICATIONS ............................................................................................................................. 19

SCHEMATICS ............................................................................................................................................. 21

Reciprocating Water Bath 3

Section

1

INTRODUCTION

Thank you for choosing a reciprocating water bath. These units are not intended for use at hazardous or

household locations.
Before you use the unit, read this entire manual carefully to understand how to install, operate, and maintain the unit

in a safe manner. Your satisfaction with the unit will be maximized as you read about its safety and operational
features.

Keep this manual on-hand so it can be used by all operators of the unit. Be sure all operators of the unit are given
appropriate training before you put the unit in service.

Note: Use the unit only in the way described in this manual. Failure to follow the guidelines and

instructions in this manual may be dangerous and illegal.

General Safety Considerations

Your water bath and its recommended accessories have been designed and tested to meet strict safety
requirements.

For continued safe operation of your water bath, always follow basic safety precautions including:

 Read this entire manual before using the water bath.
 Be sure you follow any city, county, or other ordinances in your area regarding the use of this unit.
 Use only approved accessories. Do not modify system components. Any alterations or modifications

to your water bath may be dangerous and will void your warranty.

 Always plug the unit’s power cord into a grounded electrical outlet that conforms to national and local

electrical codes. If the unit is not grounded, parts such as knobs and controls may conduct electricity
and cause serious injury.

 Do not connect the unit to a power source of any other voltage or frequency beyond the range stated

on the power rating overlay at the rear of the unit.

 Do not modify the power cord provided with the unit. If the plug does not fit an outlet, have a proper

outlet installed by a qualified electrician.

 Avoid damaging the power cord. Do not bend it excessively, step on it, place heavy objects on it. A

damaged cord can easily become a shock or fire hazard. Never use a power cord after it has become
damaged.

 Do not position equipment in a manner that prohibits access to power cord.
 Do not attempt to move the unit during operation or before the unit has been allowed to cool.

Reciprocating Water Bath 4

Model Number

Serial Number

Part Number

Voltage

Section

2

RECEIVING YOUR UNIT

Before leaving our factory, all units are packaged in high quality shipping materials designed to provide
protection from transportation related damage.

Once a unit leaves our factory, however, safe delivery becomes the responsibility of the carrier who is
liable for loss or damage to your unit. Damage sustained during transit is not covered under your unit
warranty.

When you receive your unit, inspect it for concealed loss or damage to its interior and exterior. Should you
find any damage to the unit, follow the carrier’s procedure for claiming damage or loss.

Inspection Guidelines

Carefully inspect the shipping carton for damage. If the carton is damaged, report the damage to the
carrier service that delivered the unit.

If the carton is not damaged, open the carton and remove its contents. Verify that all of the following
equipment is included in the crate:

 One (1) Bathcover
 Two (2) Thermometer Clips
 One (1) Manual
 One (1) Shaker Basket

Carefully check all packaging before discarding. Save the shipping carton until you are sure everything is
in order.

Returning Shipment

If you must return the unit for any reason, first contact your service representative for authorization. You
will be asked to provide the data plate information. See Recording Data Plate Information.

Recording Data Plate Information

Once you have determined the unit is free from damage, locate the data plate at the back of the unit. The
data plate indicates your unit’s model number and serial number. Record this information below for future
reference.

Table 1. Data Plate Information

Reciprocating Water Bath 5

Symbol

Identification

Indicates that you should consult your operator’s manual for further instructions.

Indicates “Temperature”

Indicates “Over Temperature Protection”

Indicates “AC Power”

I

Indicates the power is “ON”

O

Indicates the power is “OFF”

Indicates “Protective Earthground”

Indicates “Up” and “Down” respectively

Indicates “Manually Adjustable”

Indicates “Potential Shock Hazard” behind partition

Indicates “Hot Surface”

Indicates “Unit should be recycled” (Not disposed of in land-fill)

Section

3

GRAPHIC SYMBOLS

Your unit is provided with a display of graphic symbols that should help in identifying user adjustable
components.

Table 2. Symbols

Reciprocating Water Bath 6

Section

4

INSTALLATION

Your satisfaction and safety require a complete understanding of this unit. Read the instructions thoroughly and be
sure all operators are given adequate training before attempting to put the unit in service.

This equipment must be used only for its intended application; any alterations or modifications will void your
warranty. Local city, county, or other ordinances may govern the use of this equipment. If you have any questions
about local requirements, please contact the appropriate local agency. The end user may perform installation.

Customer service should be contacted for operating conditions outside these limits.

Environmental Conditions

Under normal circumstances these units are intended for use indoors, at room temperatures between 18 and 40C,
at no greater than 80% relative Humidity (at 25C) and with a supply voltage that does not vary by more than
10% from the data plate rating. This equipment should not be operated at an altitude exceeding 2000 meters.
Installation category is II, pollution degree 2. Customer service should be contacted for operating conditions outside
of these limits.

Power Source

Check the data plate for voltage, cycle, and ampere requirements. If matched to your power source, plug the power
cord into a grounded outlet.

Voltage should not vary more than ± 10% from the data plate rating.
These units are intended for 50/60-HZ application. A separate circuit is recommended to prevent damage to the unit

due to overloading or circuit failure.

Location

In selecting a location, consider all conditions that might affect performance, such as heat from radiators, ovens,
autoclaves, etc. Avoid direct sun, fast-moving air currents, heating and cooling ducts, and high traffic areas. Allow a
minimum of 10 cm between the unit and any walls or partitions that might obstruct free airflow.

Lifting and Handling

These units can be heavy for some people and care should be taken to use appropriate lifting devices that are
sufficiently rated for these loads. Units should only be lifted from their bottom surfaces. Handles and knobs are not
adequate for lifting or stabilization. The unit should be completely restrained from tipping during lifting or transport.
All moving parts such as trays or covers should be removed during transfer to prevent shifting and damage.

Oscillation Rack

The oscillation rack is installed in the bath when packed for shipping. There is a reciprocating arm that extends from
the motor housing to the rack. An adjustable bearing is at the bath end of the arm that slides over the locking pin at
the top of the rack. This bearing must be in place over the locking pin before the rack will oscillate.

Cleaning and Decontamination

In the event hazardous material is spilled onto or into the equipment appropriate decontamination must be carried
out. If there is any doubt about the compatibility of decontamination or cleaning agents with parts of the equipment or
with material contained, please contact the manufacturer.

Units are cleaned at the factory, but not sterilized. Remove any racks if assembled and clean the bath with a
disinfectant that is suitable for your application. See Maintenance Section for cleaning instructions and precautions.

Reciprocating Water Bath 7

Section

5

CONTROLS OVERVIEW

Power Switch

The Green I/O (On/Off) power switch, located in the top right hand corner of the control panel, controls all power to
the unit. It must be in the I position to be ON and illuminated before any systems are operational. The on/off switch
must remain easily accessible at all times.

Main Temperature Controller

This control is marked TEMPERATURE and consists of the digital display and UP and DOWN arrow pads for
inputting set point temperatures and calibration.

Over Temperature Safety Thermostat (OTP)

This control is marked SAFETY and is completely independent of the Main Temperature Controller. The Safety
guards against any failure of the Main Controller that would allow the temperature to rise past the set point. If the
temperature rises to the Safety set point, the Safety takes control of the heating element and allows continued use of
the water bath until the problem can be resolved or service can be arranged. The control is adjusted using a
screwdriver or a small coin. (See Setting Main Temperature Control for more information.)

Safety Light

This pilot lamp is located just above the OTP and comes ON whenever the Safety Thermostat is activated. This light
should never be on during normal operating conditions.

Reciprocating Water Bath 8

Figure 1. Controls Illustration