Drummond Hood mate pipet-aid 300 User manual

Drummond Scientific

Company

Installation & Operation

Manual for Model 300

Catalog Number 4-000-300

Hood Mate®Pipet-Aid®

This equipment is for indoor use only.

(Maximum temperature 35°C, Maximum Humidity 60%)

Specifications

Rating 120 Volts, 60 Hz AC

Installation Category II

Pollution Degree One

Input 6.3 VA

Pipet Capacity Any pipet with a mouth

piece diameter 3 mm to

10 mm

Maximum Fill Rate 10 mL/sec

CAUTION: CAREFULLY READ THROUGH THIS ENTIRE

MANUAL BEFORE USING YOUR NEW

PIPET-AID. PAY CLOSE ATTENTION TO

THE RULES FOR SAFE OPERATION

WARNINGS AND CAUTIONS.

Made in USA

500 Parkway, Broomall, PA 19008

800/523-7480 • 610/353-0200 • FAX: 610/353-6204

www.drummondsci.com • www.pipet-aid.com

©Copyright Drummond Scientific Company, 2002, Rev. 5/04, Printed in USA

Hood Mate® is a registered trademark of Drummond Scientific Company

1) Product Specifications

2) Table of Contents

3) Rules for Safe Operation

4) Installation

5) Operation

6) Maintenance

7) Parts/Service

•For Indoor use only.

•Never operate unit in an explosive atmosphere.

The pump motor generates sparks.

•Use extreme caution loading a glass pipet into Pipet-Aid®.

•Expelling liquid from a pipet generates aerosols.

The faster the liquid is expelled, the more aerosols

are generated. Understand the nature of the liquid

being pipetted and take appropriate precautions.

•Do not operate unit with a damaged cord.

•Do not handle power supply with wet hands.

•PIPETTING ACIDS OR STRONG ALKALIS WILL DAMAGE UNIT.

•When servicing, use only identical Drummond

replacement parts.

•Save these instructions.

2 7

The specifications for the Drummond filter are .45 µm for the hydrophilic

layer and .8 µm for the hydrophobic layer. Most competitive pipetting units

use a single layer hydrophobic membrane with ratings of either .22 µm or

.45 µm. These filters protect the handle only. If challenged with an aqueous

solution, the filter will prevent the liquid from entering the handle; however,

it can be subsequently blown out and pipetting can be continued. This

action creates an aerosol generator just above the pipet and all subsequent

dispensing are at risk of being contaminated. While the user may think he

or she is sterilizing the air entering the pipet, they are in fact introducing

contamination.

The most effective safety measure to prevent contamination is the cotton

or fiber plug in each pipet. Even if a sterile filter is installed in a Pipet-Aid,

the first time an aerosol comes in contact with the bottom membrane, the

filter is rendered forever nonsterile. The only thing that prevents this from

happening is the plug in the pipet itself, which prevents aerosols from

leaving the pipet and prevents them from entering. Drummond “self-locking”

TC filters are supplied nonsterile because we believe there is no effective

and practical method to maintain sterility in these devices.

SSeerrvviiccee

Drummond Scientific Company supplies a one year warranty on all Pipet-Aid

Products. Spare parts can be ordered from your favorite laboratory supply

firm, or by calling our toll-free number 1-800/523-7480.

If you have any questions or you need assistance our service department

is available Monday through Friday, from 8:30 AM to 4:30 PM EST.

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4-000-002...............................................................Rubber Insert (2/Pk)

4-000-051...............................................................Replacement Filters (5/Pk)

4-000-057...............................................................TC Gasket (Pair)

4-000-079...............................................................Nosepiece (Black)

4-000-080...............................................................Power Supply, 110 V

4-000-082...............................................................Backing Plate

4-000-083...............................................................Replacement Tape

4-000-084...............................................................Valve Body Assembly

4-000-085...............................................................Coiled Hose

4-000-086...............................................................Hose Support

4-000-087...............................................................Nosepiece Kit

(1 black nosepiece, 4 filters,

TC gasket/pair, & rubber insert)

Model #_______________________

Serial #________________________

Table of Contents

Rules for Safe Operation

INSTALLATION

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Determine a suitable area to place the mounting bracket and clean the

surface with isopropyl alcohol. On the back of the mounting bracket there

are three adhesive strips, pull the black removal tabs off these strips and

press the mounting bracket firmly in place for thirty (30) seconds.

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To remove the mounting bracket from the inside of the hood, gently pull the

removal tabs straight down until the bracket releases from inside the hood.

Press

Here

6 3

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A two-layered membrane filter is located in the nosepiece. If an accidental

overfilling of the pipet is encountered the wetted filter will prevent air

movement in either direction thus shutting down pipetting operations.

The wetted parts should be cleaned and the filter must be replaced

with a Drummond replacement filter.

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Slide the NNoosseeppiieecceeRReelleeaasseetoward the control buttons and twist the

nosepiece to release it from the handle. Remove the two gaskets from

the old filter and place them on the new filter. Place the filter and gasket

assembly into the nosepiece and lock into handle with a twisting motion.

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Check the rubber insert for blockage. Drummond ddooeessnnoottuusseeccoottttoonn.

If cotton gets into the rubber insert unit will not operate properly.

Unit may be wiped down with an alcohol solution or soap and water.

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Inspect interior of rubber insert for broken rings. Broken or worn rings may

cause a reduction in vacuum and pressure, which will result in leakage from

the pipet. Replace as necessary.

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Two rubber gaskets are attached to the TC Filter. Unit will not function if

either one is missing.

Inspect Nosepiece for wear. If the nosepiece is removed without using the

nosepiece release it will damage nosepiece, resulting in a loss of vacuum

and pressure. Check the three protrusions on nosepiece for wear.

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In order to provide a fail-safe, one-time check valve for Pipet-Aid pipettors,

Drummond pioneered the use of a “self-locking” dual layer filter composed

of one hydrophobic membrane and one hydrophilic membrane located in

the nosepiece. With a dual layer membrane, when the filter is challenged

with an aqueous solution, the hydrophobic layer prevents liquid from

entering the handle and the wetted hydrophilic layer restricts the flow of air

which locks the Pipet-Aid from further use. When this occurs, the user must

replace the filter and clean the other wetted parts, thus protecting the

Pipet-Aid as well as the integrity of subsequent dispensing.

This Side to Hood

Mounting

Bracket

Adhesive

Tape Hood Mate®

Body

Holster

Power

Supply

Coiled

Hose

Pipet-Aid®

Handle

Hook

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4 5

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Use only the power supply that is supplied with the unit. Insert connector into

the socket in the rear of the Hood Mate body (Figure 3). Excess cord may be

wrapped around the three hooks. Run the wire through the wire guide.

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Attach the Hood Mate to the mounting bracket by aligning the slots of

the Hood Mate with the hooks of the mounting bracket. Once the slots

and hooks are aligned, slide the Hood Mate on and gently pull down

until it clicks into place. Plug power supply into the outlet.

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On the front of the mounting bracket there is a pump housing release

button. This button enables the Hood Mate to be removed from the

bracket for cleaning and other purposes. To reinstall the Hood Mate

simply slide it on and gently pull down until it clicks into place.

Power

Cord

Wrap

Power

Input

Socket

Operation

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The Handle can be “parked” on the Hood Mate body two ways as shown

in Figure 4 and Figure 5. Parking the handle by the hook allows the

handle to be stored with a pipet in it. When the handle is in either

park position, the pump will shut off.

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Removing the handle from the parked position turns on the pump and the

RED indicator light. If the handle is not parked and has not been used for

pipetting, the Hood Mate will shut itself off in three (3) minutes. Depressing

the semi-circular button on the top of the holster can reactivate it.

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Each button has three speed ranges:

““FF””FFaasstt

““MM””MMeeddiiuumm

““SS””SSllooww

The speed is selected by rotating the button on its axis until it snaps in

place. (The speed chosen is visible when the handle is held in the right

hand). These controls are independent of each other so one could fill fast

and dispense slow. CHANGE SPEED WITH PIPET EMPTY. CHANGING SPEED

WITH FLUID IN PIPET WILL RESULT IN LEAKAGE.

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4 5

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Use only the power supply that is supplied with the unit. Insert connector into

the socket in the rear of the Hood Mate body (Figure 3). Excess cord may be

wrapped around the three hooks. Run the wire through the wire guide.

AAttttaacchhiinnggHHooooddMMaattee®®

ttootthheeMMoouunnttiinnggBBrraacckkeett

Attach the Hood Mate to the mounting bracket by aligning the slots of

the Hood Mate with the hooks of the mounting bracket. Once the slots

and hooks are aligned, slide the Hood Mate on and gently pull down

until it clicks into place. Plug power supply into the outlet.

TTooRReelleeaasseeHHoouussiinngg

ffrroommMMoouunnttiinnggBBrraacckkeett

On the front of the mounting bracket there is a pump housing release

button. This button enables the Hood Mate to be removed from the

bracket for cleaning and other purposes. To reinstall the Hood Mate

simply slide it on and gently pull down until it clicks into place.

Power

Cord

Wrap

Power

Input

Socket

Operation

PPaarrkkiinnggtthheeHHaannddllee

The Handle can be “parked” on the Hood Mate body two ways as shown

in Figure 4 and Figure 5. Parking the handle by the hook allows the

handle to be stored with a pipet in it. When the handle is in either

park position, the pump will shut off.

AAccttiivvaattiioonnooffHHooooddMMaattee®®

Removing the handle from the parked position turns on the pump and the

RED indicator light. If the handle is not parked and has not been used for

pipetting, the Hood Mate will shut itself off in three (3) minutes. Depressing

the semi-circular button on the top of the holster can reactivate it.

SSppeeeeddCCoonnttrrooll

Each button has three speed ranges:

““FF””FFaasstt

““MM””MMeeddiiuumm

““SS””SSllooww

The speed is selected by rotating the button on its axis until it snaps in

place. (The speed chosen is visible when the handle is held in the right

hand). These controls are independent of each other so one could fill fast

and dispense slow. CHANGE SPEED WITH PIPET EMPTY. CHANGING SPEED

WITH FLUID IN PIPET WILL RESULT IN LEAKAGE.

FFiigguurree33