Barnstead Thermolyne Corporation 801 Series User manual

Type DB5900E
Dri-Bath Test Tube Incubator
Operation Manual
and Parts List
Series 801
Model # Series Voltage
DB5915E 801 120
DB5925E 801 120
DB5910E 801 220-240
DB5920E 801 220-240
BARNSTEAD|THERMOLYNE
LT801X1 • 3/3/00

IMPORTANT INFORMATION
This manual contains important operating and safety information. The user must carefully
read and understand the contents of this manual prior to the use of this equipment.
Safety Information ..............................................................................................................................................3
Alert Signals..................................................................................................................................................3
Warnings ......................................................................................................................................................3
Introduction..........................................................................................................................................................4
Intended Use ................................................................................................................................................4
Installation ....................................................................................................................................................4
Principles of Operation ................................................................................................................................4
General Specifications ........................................................................................................................................5
Electrical Ratings..........................................................................................................................................5
Operation ............................................................................................................................................................6
Calibration ..........................................................................................................................................................7
Equipment Required ....................................................................................................................................7
Operational Precautions and Limitations ............................................................................................................8
Maintenance and Servicing ................................................................................................................................9
Cleaning........................................................................................................................................................9
Replacing Element........................................................................................................................................9
Replacing the PC board ............................................................................................................................10
Troubleshooting ................................................................................................................................................11
Replacement Parts............................................................................................................................................12
Ordering Procedures ........................................................................................................................................13
One Year Limited Warranty ..............................................................................................................................14
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Table of Contents

Your Thermolyne Dri-Bath Test Tube Incubator has been
designed with function, reliability, and safety in mind. It is
the user’s responsibility to install it in conformance with
local electrical codes. For safe operation, please pay
attention to the alert signals throughout the manual.
Warnings
To avoid electrical shock, always:
1. Use a properly grounded electrical outlet of cor-
rect voltage and current handling capacity.
2. Disconnect from the power supply prior to main-
tenance and servicing.
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. Refer servicing to qualified personnel.
3
Safety Information
Caution
Cautions alert you to a possibility of
damage to the equipment.
Warning
Warnings alert you to a possibility of
personal injury.
Note
Notes alert you to pertinent facts and
conditions.
Alert Signals

Propriety Name: Dri-Bath
Common Name: Test Tube Incubator
Intended Use
The Thermolyne Type DB5900E Dri-Bath Test Tube
Incubators are designed to provide a controlled dry heat
environment for 13 mm test tubes containing in vitro diag-
nostic specimens or samples for qualitative or quantitative
test procedures. The operator may easily view test tube
contents while incubating. (Please refer to the clinical lab-
oratory method specified by the reagent manufacturer or
established by medical technology for product applica-
tion.) For in vitro diagnostic use.
Installation
Remove the incubator from the carton. Check the specifi-
cation plate on the bottom cover plate for proper voltage
and plug into a properly grounded receptacle.
Principles of Operation
The Type DB5900E Dri-Bath incubator is controlled by a
precision temperature sensor and solid state electronic
temperature controller. A wire wound heating element
covers the under surface of the base casting providing
uniform heating of the block. An anodized aluminum block
drilled for 13 mm tubes is mounted on the base casting.
Cutouts are made for each well and transparent plexi-
glass side panels cover the contact area for easy viewing.
This design provides heating of the base and sides of the
test tube for uniform temperature of test tube contents.
4
Introduction

Electrical Ratings
Model Volts Amps Watts Hz Wells
DB5915E 120 .38 45 50/60 10
DB5925E 120 .38 45 50/60 20
DB5910E 240 .19 45 50/60 10
DB5920E 240 .19 45 50/60 20
Factory Calibrated Temp.: 37°C ± .25
Operating Range: 30°C to 60°C
Temperature Uniformity: ±.20°C at 37°C
Temperature Stability: ±.30°C at 37°C
Heat-up time of unloaded dri-bath from a cold start to 37°C: 15 minutes for 10 well units, 20 minutes for
20 well units.
Ambient Operating Range: 17°C - 27°C
Repeatability: ±.25°C
5
General Specifications

Plug the test tube incubator into a properly grounded
receptacle. Insert a standard calibrated thermometer (51
mm immersion depth) into a 13 X 100 mm test tube con-
taining 2-3 ml. of solution and wait until the thermometer
indicates the factory preset temperature of 37°C. (See the
“Calibration” section for additional instructions.) You are
ready to incubate when the thermometer temperature has
stabilized within ±1/2°C from the set temperature.
• This dri-bath may be calibrated to maintain a
temperature other than the factory pre-set cali-
brated temperature of 37°C. To achieve a tem-
perature setting within a range of 30-60°C, refer
to the calibration instructions in this manual.
• The incubator is designed for continuous use at
the set temperature.
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Operation

Equipment Required
1 regular tip 7/32” screwdriver
1 test tube 13 x 100 mm
1 standard calibrated laboratory thermometer (51
mm immersion depth)
1. Fill the 13 x 100 mm test tube with 2-3 ml. of
solution and place in dri-bath. Thermometer
should be suspended in solution in the tube.
Avoid letting the thermometer rest on the bottom
of the test tube.
2. Turn the potentiometer on the back of the unit
clockwise (as you look at the back of the unit) to
increase temperature and counterclockwise to
decrease temperature. The potentiometer
rotates through 300 circular degrees. Each
degree of rotation is equal to .15°C; 1/4 turn (90
circular degrees) equals approximately 12°C.
3. Allow 10 minutes stabilization time between fine
adjustments.
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Calibration
Caution
Potentiometer rotates through 300 cir-
cular degrees maximum (approximate-
ly 7/8 of one full turn). Do not force
potentiometer.

1. Do not place dri-bath in a draft, sunlight or near
equipment which emits heat as this may result
in fluctuating temperatures.
2. Test tube liquid levels should not exceed the
level of the well depth.
3. Placing a full load of cold tubes in the dri-bath
will extend the recovery time.
4. Only 13 mm test tubes should be used in the
dri-bath to obtain optimum results.
8
Operational Precautions and
Limitations
Warning
Do not use in the presence of flamma-
ble or combustible materials — fire or
explosion may result. This device con-
tains components which may ignite
such materials.

Cleaning
1. Unplug incubator.
2. Remove six screws holding plexiglass panels.
3. Panels may be washed in a mild detergent
using lukewarm water. Incubator may be
cleaned with a moist soapy cloth. Do not
immerse bottom control section.
Replacing Element
1. Disconnect from line voltage.
2. Place unit upside down.
3. Remove the four screws on the outside of the
lower casting. Remove bottom cover.
4. Disconnect terminals from heating element.
5. Carefully remove thermistor from block.
6. Remove the 2 screws and washers which are
located on the aluminum plate. (These screws
hold the heating element onto the casting; they
also hold the block to the casting.)
7. Remove the plate with the PC board and lay it
to one side.
8. Remove the insulation, element and spacers.
9. Install the new element.
10. Replace the insulation, spacers, plate with PC
board, washers and screws.
11. Clean the old (RTV) silicone from the plate and
thermistor.
12. Using 100% silicone, coat the tip of the thermis-
tor. Reinstall the thermistor in the block.
9
Maintenance and Servicing
Warning
Refer servicing to qualified personnel.
Disconnect from power supply before
servicing.
Caution
Grip thermistor on sleeving near alu-
minum plate.

13. Connect the element leads. Replace the cover
and screws.
14. Place the unit upright. Calibrate the unit accord-
ing to the “Calibration” section of this manual.
Replacing the PC Board
1. Disconnect from line voltage.
2. Place unit upside down.
3. Remove the four screws on the outside of the
lower casting. Remove bottom cover.
4. Disconnect all terminals from PC Board.
5. Carefully remove thermistor from block.
6. Remove PC board from clips.
7. Install new PC board. Reconnect line cord leads
terminals marked L1 & L2 - white or blue on L2,
black or brown on L1. Reconnect element leads.
8. Clean the old (RTV) silicone from the plate.
9. Using 100% silicone, coat the tip of the thermis-
tor. Reinstall the thermistor in the block.
10. Replace the cover and screws.
11. Place the unit upright. Recalibrate the unit
according to the “Calibration” section of this
manual.
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MAINTENANCE AND SERVICING
Caution
Grip thermistor on sleeving near alu-
minum plate.

Problem Cause Solution
Does not heat Defective Thermistor Replace Thermistor
Defective Control Board Replace Board
Open Element Replace Element
Loose or Broken Connection Reconnect or replace faulty connection
Unit heats full on Potentiometer set at maximum Check Potentiometer position
Defective Control Board Replace Control Board
11
Troubleshooting

Model Number(s): DB5915E, DB5925E, DB5910E, DB5920E
Product Name: Dri-Bath Test Tube Incubator
Series Number: 801
Model Number Part No. Description
DB5925E, DB5915E PC753X1A Electronic control
DB5910E, DB5920E PC753X2A Electronic control
DB5915E, DB5925E CR760X2A Cord and plug, 120V
DB5910E, DB5920E CR801X1A Cord and plug, 240V
DB5915E, DB5925E EL753X1 Heating element, 120V
DB5910E, DB5920E EL753X2 Heating element, 240V
All Models DL753X7 Plexiglass numbered plate, 1-10
DB5925E, DB5920E DL753X6 Plexiglass numbered plate, 11-20
DB5915E, DB5910E PT59X1 Unnumbered plexiglass plate
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Replacement Parts

13
Ordering Procedures
Please refer to the Specification Plate for the complete
model number, serial number, and series number when
requesting service, replacement parts or in any correspon-
dence concerning this unit.
All parts listed herein may be ordered from the
Barnstead|Thermolyne dealer from whom you purchased
this unit or can be obtained promptly from the factory.
When service or replacement parts are needed we ask
that you check first with your dealer. If the dealer cannot
handle your request, then contact our Customer Service
Department at 319-556-2241 or 800-553-0039.
Prior to returning any materials to Barnstead|Thermolyne
Corp., please contact our Customer Service Department
for a “Return Goods Authorization” number (RGA).
Material Returned without an RGA number will be
returned.

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Barnstead|Thermolyne Corporation warrants that if a product manufactured by Barnstead|Thermolyne and
sold by it within the continental United States or Canada proves to be defective in material or construction, it
will provide you, without charge, for a period of ninety (90) days, the labor, and a period of one (1) year, the
parts, necessary to remedy any such defect. Outside the continental United States and Canada, the warranty
provides, for one (1) year, the parts necessary to remedy any such defect. The warranty period shall
commence either six (6) months following the date the product is sold by Barnstead|Thermolyne or on the
date it is purchased by the original retail consumer, whichever date occurs first.
All warranty inspections and repairs must be performed by and parts obtained from an authorized
Barnstead|Thermolyne dealer or Barnstead|Thermolyne (at its own discretion). Heating elements, however,
because of their susceptibility to overheating and contamination, must be returned to our factory, and if, upon
inspection, it is concluded that failure is not due to excessive high temperature or contamination, warranty
replacement will be provided by Barnstead|Thermolyne. The name of the authorized Barnstead|Thermolyne
dealer nearest you may be obtained by calling 1-800-446-6060 (319-556-2241) or writing to:
Barnstead|Thermolyne
P.O. Box 797
2555 Kerper Boulevard
Dubuque, IA 52004-0797
USA
FAX: [phone]
E-MAIL ADDRESS: [email protected]
Barnstead|Thermolyne’s sole obligation with respect to its product shall be to repair or (at its own discretion)
replace the product. Under no circumstances shall it be liable for incidental or consequential damage.
THE WARRANTY STATED HEREIN IS THE SOLE WARRANTY APPLICABLE TO Barnstead|Thermolyne
PRODUCTS. Barnstead|Thermolyne EXPRESSLY DISCLAIMS ANY AND ALL OTHER WARRANTIES,
EXPRESSED OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY OR FITNESS FOR USE.
One Year Limited Warranty

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