Endress+Hauser Analytik Jena UVP Minidizer Manual

81-0169-02 Rev J

UVP Minidizer

Hybridization Oven

Instruction Guide

___________________________________________________________________

Analytik Jena US

2066 W. 11th Street, Upland, CA 91786

Tel: (909) 946-3197

Fax: (909) 946-3597

Web Site: www.us.analytik-jena.com

Ultra-Violet Products Ltd.

Unit 1, Trinity Hall Farm Estate

Nuffield Road, Cambridge CB4 1TG UK

Tel: +44(0)1223-420022 Fax: +44(0)1223-420561

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Table of Contents

Introduction ...................................................................................................................................................................3

Hybridization Oven Specifications..................................................................................................................................4

Installation.....................................................................................................................................................................5

Operation.......................................................................................................................................................................6

Service Procedures .........................................................................................................................................................6

Hybridization Techniques ............................................................................................................................................10

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Introduction

The UVP Minidizer Hybridization Oven is a cost-effective, personal desktop hybridization oven with a capacity of four

35x150mm bottles, eight 50ml or 15ml conical plastic tubes. The Minidizer operates with a state-of-the-art

microprocessor as well as temperature and variable speed controls. The Minidizer enables consistent saturation of

samples, whether it for washing or hybridizing. The bottle carousel rotates at a uniform speed of 12 RPM.

A touch-sensitive keypad and microprocessor provide accurate temperature control from ambient +10°C to 78°C. The

keypad is located below a large LCD readout. Once the desired hybridization temperature is entered, the readout displays

the current temperature inside the chamber. The chamber environment is calibrated at 78°C; at this temperature, the

microprocessor accuracy is ±0.5°C. The uniformity of the chamber at 68°C is ±0.1°C; at 55°C is ±0.1°C; and at 42°C is ±0.1°C.

WARNING!

There may be build up of pressure within the hybridization bottles when they are taken from ambient to hybridization

temperature. To help in relieving some of this pressure, preheat the solutions and bottles. Also, ensure that bottles are

opened at the same temperature as the hybridization process. Do not allow the bottles to cool before opening.

To assure hybridization bottles remain leak proof and pressure proof, prevent temperatures above 70°C. If temperatures

above this are used without first relieving the pressure within the bottle, there is a risk that bottles will leak and/or break

due to internal pressure build up.

If the bottles are accidentally taken above 70°C without relieving the pressure, DO NOT open the hybridizer door. Turn off

the hybridizer and allow it to cool before opening the door and checking the contents of the oven. Should the bottles be

used above 70°C, relieve the pressure by unscrewing and re-tightening the cap.

If using radioactive material see the “Decontamination” section of this manual under “Service Procedures”.

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Hybridization Oven Specifications

UVP Minidizer Hybridization Oven

Part Number Volts/Hz

95-0330-01 115V/60Hz

95-0330-02 230V/50Hz

95-0330-03 100V/50Hz

Specifications

Net Weight: 11.3 lbs (5 kg)

Temperature: Ambient +10°C to 80°C

Heating Element: 500 watts

Temperature Display: LCD

Rotation Speed: 12 RPM

Bottle Capacity: Four (4) 35x150mm, Eight (8) 50ml, or Eight (8) 15ml

Dimensions: 9”W x 13”H x 8”D (229 x 330 x 203mm)

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Installing the bottles and tubes

Installing the carousel

Installation

The Minidizer Hybridization Oven has capacity for four 35x150mm bottles and eight 50ml or 15ml conical

plastic tubes. Combinations of multiple-sized bottles may be used at the same time.

1. To insert bottles or tubes into the carousel, gently

press them into the clips.

2. To insert bottle holder, begin by placing the large end

of the bottle holder into the slotted holder on the right

wall. Twist until the shaft locks into place, then slide the

rod end into the black holder on the left wall. Compress

the spring-loaded locking pins and rotate until aligned

with the spindle on the right wall.

NOTE: ALWAYS USE AN EVEN NUMBER OF BOTTLES AND LOAD

BOTTLES OPPOSITE EACH OTHER TO BALANCE THE BOTTLE

HOLDER. THIS PREVENTS EXCESSIVE WEAR OF THE BEARINGS

AND DRIVE MOTOR.

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Temperature

Display: Press the

up and down

arrows to set the

temperature

Power: Press the

power switch to

the “I” position

operate the

temperature

Motor: Press the

power switch to

the “I” position

rotate the carousel

Operation

Caution: This equipment is not intended for interconnection with any other devices. Use of this equipment other than as

intended may create a safety hazard and/or malfunction.

Using the Hybridization Oven

1. Place the unit on a level working surface and provide adequate room in front of the door to allow easy opening.

2. Plug the female end of the power cord into the back of the unit and the male end into a surge-protected outlet.

3. To turn on the main power supply, press the Power switch toward “ON” on the right side of the control panel.

4. To turn on the motor control to rotate the carousel, press the motor control power switch to the “ON” position.

Temperature Calibration Controls

When the power is turned on, the software

revision number flashes for several

seconds. The display will then show

internal surface temperature (not air

temperature) for a few seconds. The

display will then revert to the factory

preset temperature of 30°C.

Altering the Temperature

Setpoint

The current setpoint value can be altered

using the “UP” and “DOWN” buttons while

the setpoint is being displayed. To change the setpoint from normal

mode, proceed as follows:

1. Press then release either the “UP” or the “DOWN” button.

The LCD will flash to indicate that the displayed value is the current setpoint. If either button is held

down for more than several seconds, setpoint value will increase or decrease incrementally.

2. When the desired setpoint is reached, wait approximately five seconds without pressing either button;

the display will revert to normal mode showing the actual temperature. The new setpoint becomes

effective. When the unit is turned off and turned on again, the last used setpoint will be displayed.

3. Allow sufficient time for warm-up prior to hybridization procedures.

Temperature Calibration

The hybridization oven is calibrated at the Analytik Jena factory. AJ recommends temperature recalibration be

performed at the AJ factory as recalibration by the user may void the warranty. To return the unit to AJ, first

obtain a RGA (Returned Goods Authorization) number from AJ.

Call AJ’s customer service department in Upland, California at (909) 946-3197 or Cambridge, UK at +44(0)1223-

420022 to obtain an RGA number or to inquire about temperature calibration.

Service Procedures

Care and Cleaning

NOTE: ALWAYS UNPLUG THE UNIT FROM THE ELECTRICAL SUPPLY BEFORE CLEANING OR DRYING THE UNIT!

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The units are built to provide trouble-free operation for the life of the system. To ensure correct operation:

•Wipe any water from inside and outside the unit with a soft cloth or sponge.

•Use soap and water with a soft cloth or sponge to clean the unit.

•Do not allow chemicals to remain on unit surfaces.

•Never clean unit with abrasive pads or cleaners.

•Never clean unit with acetone or chloroform.

Bottle Care

Analytik Jena’s hybridization bottles are made of thick walled borosilicate glass which helps protect users from

radiation and has excellent long-term reliability.

•It is important to check the bottles regularly for chips, stress fractures and cracks. If this occurs, the

bottle must be replaced.

•Ensure bottles are stored either in a suitable rack or with caps replaced in between experiments. This

will protect the bottle and sealing area.

•Replace O-rings/PTFE seals when worn or leaky; replace O-rings or PTFE seals every six months.

•Wear protective gloves to protect your hands in the event of an accidental breakage.

•Never over tighten caps on the bottles. Hand tightening is sufficient.

•If the cap is difficult to unscrew, NEVER ATTEMPT to force the bottle cap open. Allow the bottle to cool

and retry. If the cap remains stuck, discard the bottle.

•The bottles should not be used at temperatures above 70°C.

Decontamination

Bottles and Caps*

•Soak items in a diluted detergent solution overnight.

•Remove from detergent and rinse items with distilled water.

•If items are still contaminated, gently scrub with an abrasive cloth or brush. If necessary, continue to

soak items in the detergent solution for a longer period of time.

Oven Chamber*

The oven chamber and drip tray may be decontaminated by wiping clean with a decontaminating agent,

then repeating with distilled water.

*NOTE: These decontamination methods may not remove all contaminants. Refer to Federal, State and local

guidelines and biological protocols to ensure decontamination.

NOTE: If any unit requires service, a Returned Goods Authorization number (RGA) must be obtained from AJ’s

Customer Service department prior to returning any item to AJ. If radioactive or biological hazardous materials

have been present within the unit, radioactive decontamination and biological cleanup as per current Federal,

State, and local guidelines and biological protocols must be performed BEFORE returning the unit.

Replacement Parts and Accessories

Replacement parts lists are provided below for the UVP Minidizer Hybridization Oven. Repairs or replacement

other than specified in the following procedures shall be done only by authorized service personnel.

PART NUMBER DESCRIPTION QUANTITY

76-0070-02 Bottle Carousel Holder 1 Required

63-0024-02 Carousel Shaft Assembly 1 Required

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68-0088-01 Carousel Pillow Block 1 Required

46-0024-02 Motor Drive Coupler Assembly 1 Required

56-0022-01 Fuse, 3AMP/250V 5x20mm (Sold Individually)2 Required

88-0004-01 Bottle Cap and O-Ring/PTFE Seal

07-0194-01 Borosilicate glass bottle with polypropylene

cap and PTFE seal, 35 x 150 mm

58-0085-01 Power Cord (115V)

58-0085-03 Power Cord (230V)

Technical Support

Analytik Jena offers expert technical support on all AJ products. If there are any questions about product use,

operation or repair, contact AJ’s offices at the locations below.

NOTE: A Returned Goods Authorization (RGA) number must be obtained from AJ’s Customer Service prior to

returning any product.

If you are in North America, South America, East

Asia or Australia:

If you are in Europe, Africa, the Middle East or

Western Asia:

Call (909) 946-3197, and ask for Technical

Support during regular business days, between 7:00

am and 5:00 pm, PST.

Call +44(0) 1223-420022, and ask for Customer

Service during regular business days between 9:00 am

and 5:30 pm.

E-mail your message to: info@us.analytik-jena.com

or [email protected]-jena.com E-mail your message to: uvp@uvp.co.uk

Fax Technical Support at (909) 946-3597 Fax Customer Service at

+44(0) 1223-420561

Write to: Analytik Jena 2066 W. 11th Street, Upland,

CA 91786 USA

Write to: Ultra-Violet Products Ltd. Unit 1, Trinity Hall

Farm Estate, Nuffield Road, Cambridge CB4 1TG UK

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Warranty

Analytik Jena’s quality hybridization ovens are guaranteed to be free of defects in materials, workmanship and

manufacture for one (1) year from the date of purchase. Consumable and disposable parts including, but not limited

to bottles, tubes and filters, are guaranteed to be free from defects in manufacture and materials for ninety (90)

days from the date of purchase. If equipment failure or malfunction occurs during the warranty period, AJ shall

examine the inoperative equipment and have the option of repairing or replacing any part(s) which, in the

judgment of AJ, were originally defective or became so under conditions of normal usage and service.

No warranty shall apply to any instrument, or part thereof, that has been subject to accident, negligence, alteration,

abuse or misuse by the end user. Moreover, AJ makes no warranties whatsoever with respect to parts not supplied

by AJ or that have been installed, used and/or serviced other than in strict compliance with the instructions

appearing in the operational manual supplied to the end user.

In no event shall AJ be responsible to the end user for any incidental or consequential damages, whether

foreseeable or not, including but not limited to property damage, inability to use equipment, lost business, lost

profits or inconvenience arising out of or connected with the use of instruments produced by AJ. Nor is AJ liable or

responsible for any personal injuries occurring as a result of the use, installation and/or servicing of equipment. This

warranty does not supersede any statutory rights that may be available in certain countries.

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Hybridization Techniques

There are really two main steps to a hybridization reaction: hybridizing two strands of complementary DNA, and detection

of the hybridized DNA. Nucleic acid hybridization is a mechanism where strands of DNA in a single stranded state have

their complements bind together. The proximity of the DNA strands to each other determines the frequency of the binding

events and, in fact, successful binding is proportional to their concentration. The concentration of the target (nucleic acid)

is the independent variable in all hybridization reactions.

Since the target concentration is usually the unknown variable, an excess of labeled probes (what you use to find the

target) will drive the reaction, thus decreasing the time for the probe to hybridize to a target. This is simply increasing the

chances of a probe bumping into a target. However, with an enormous amount of probe around (in the solution or on the

surface of a membrane), the background signal will also be enormous. The typical approach to correct for excess

background (noise) on a membrane or slide hybridization is to wash it in a low salt buffer, as this favors the disassociation

of unbound probe from the membrane/slide and non-complementary DNA. In solutions, a probe can be enzymatically

degraded by using a single strand-specific nuclease.

Mechanisms of Nucleic Hybridization

Hybridization occurs with a process called nucleationwhereby

the two separate nucleic acid strands come into close proximity

of each other. A duplex region is formed where a minimum of

three bases of one strand complements to those on the second

strand. If the remainder of the strands are complementary, the

two strands will anneal or zipper together very quickly. The rate-

limiting step in nucleic acid hybridization is the duplex

formation, which again explains why probe-to-target

concentrations are critical.

Experimental Protocols

There are many different protocols available on the web, in journals, and in text references and we reference

several at the end of this text.

1. Concentration of Species

Target:How much target molecule depends on the species you expect to find. Cellular constituents may

be expressed in large or small amounts; the trick is to start with enough target (~25 g) and determine

experimentally.

Probe:Plan to have more probe than expected target. To answer questions about adding too much

probe, run an extinction experiment: serially increase the amount of target by a factor of two and use a

fixed amount of probe. Hybridize for a short length of time and quantitate the amount of probe that

has hybridized. As long as the signal increases and shows linearity there is excess probe (Fig 2). If the

signal levels off and a loss of linearity noticed, then the probe is not in excess (Fig 2).

2. Length of Probe

The goal is to increase hybridization efficiency while minimizing background. In most cases probes

range from 20 – 1000 bps.

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