Welch Allyn Medical Diagnostic Equipment 2511, 2515 User Manual

OWNER’S MANUAL

FOR

ASPIRATION / FILTRATION

VACUUM SYSTEM

MODELS:

2511 & 2515

Approval Agency’s

Model 2515B-75Model 2511B-75 / 2511C-75 Model 2515C-75

Warning

Not recommended for pumping acid,

base or organic vapors or gases.

Welch Rietschle Thomas
7301 North Central Avenue
Skokie, IL 60077
Phone: [phone]
Fax: [phone] (Technical Support)
Fax: [phone] (Ordering)
E-Mail: [e-mail] Part No. 67-1772R1.1
Web-Page: www.welchvacuum.com Printed in USA

For outside of U.S. and Canada, contact your local
Rietschle Thomas sales office, see back page

INSTRUCTION

WARNING AND CAUTION

PLEASE READ BEFORE OPERATION

While reading your manual, please pay close attention to areas labeled:

WARNING AND CAUTION.

The description of each is found below.

WARNING

Warnings are given where failure to observe instruction could result

in injury or death to people.

CAUTION

Cautions are found where failure to observe the instruction could result

in damage to the equipment, associated equipment and process.

These units confirm to the SI International system of units of measurement.

The following symbols (with recommendation of IEC1010 ) of warning will be found on the pump.

Caution - refer to accompanying documents

Caution - risk of electrical shock

Caution - hot surface

Double Insulated

OFF (Power)

ON (Power)

WARNING

Motor includes a self resetting thermal cutout and the pump could

restart without actuation under fault condition.

2

TABLE OF CONTENTS

Section 01 - SAFETY INFORMATION

1.10 Caution To Prevent Injury

1.20 Caution To Reduce Risk Of Electrical Shock

1.30 Warning To Reduce Risk Of Electrocution

1.40 Danger To Reduce Risk Of Explosion Or Fire

Section 02 - INSTALLATION

2.10 Introduction

2.20 Unpacking

2.30 Pump Mounting

2.40 Pump Location

2.50 Intake And Discharge Provision

2.60 Electrical Power

2.70 Vacuum Connection

2.80 Vacuum Gauges

2.90 Traps

Section 03 - OPERATION

3.10 Starting Procedures

3.20 Leak Detection

3.30 Operating Pressure Range

3.40 Shutdown Procedures

Section 04 - MAINTENANCE

4.10 Maintenance Procedures

Section 05 - TROUBLESHOOTING

5.10 Vacuum Problems

5.20 Pressure Problems

5.30 Trouble Shooting Guide For 2515

5.40 Trouble Shooting Guide For 2511 And 2515

Section 06 - SPECIFICATION

6.10 Specification Table

Section 07 - WARRANTY

Section 08 - EXPLODED VIEWS AND PARTS LIST

8.10 Exploded View And Parts List For 2511B-75 / 2511C-75 / 2511C-76

8.11 Exploded View And Parts List For 2515B-75 / 2515C-75 / 2515C-76

8.12 Exploded View And Parts List For 1475K-20

Section 09 - KITS AND ACCESSORIES

3

SECTION 1: SAFETY INFORMATION

1.10 Caution: To Prevent Injury...

1.11 Never operate this product if it has a damaged cord or plug. If it is not working properly, has been

dropped, damaged or has fallen into water, please return the product to a Welch service center for
examination and repair.

1.12 Keep the cord away from heated surfaces. All electrical products generate heat. To avoid serious burns
never touch unit during or immediately after operation.

1.13 Never block any air openings or place it on a soft surface where the openings may be blocked.
The air openings are for ventilation of the motor inside the housing. Keep all air openings free of lint,
dirt and other foreign objects.

1.14 Models 2511 and 2515 are thermally protected and can automatically restart when the protector resets.
Always disconnect power source before servicing.

1.15 Never drop or insert fingers or any other object into any openings.

1.16 Do not operate this product where oxygen is being administered.

1.17 Wear safety glasses and goggles when operating this product. Never point any air nozzle or air sprayer

toward another person or any part of the body.

1.18 Use only in well ventilated areas.

1.19 Do not use any tools or attachments without first determining maximum air pressure for that tool

or attachment (applies to model 2511 only). Be sure to properly identify intake and discharge
before using pump. See Section 2.50.

WARNING

Do not fill the collection jar above the safe fill level line

indicated on the jar.

1.20 Caution: To Reduce Risk Of Electrical Shock...

1.21 Do not disassemble. Disassembly or attempted repairs if accomplished incorrectly can create electrical

shock hazard. Refer servicing to qualified service agencies only.

1.22 115V unit is supplied with a three pronged plug.
Be sure to connect pump to a properly grounded outlet only.

1.30 Warning: To Reduce Risk Of Electrocution...

1.31 Do not use this product in or near area where it can fall or be pulled into water or other liquids.

1.32 Do not reach for this product if it has fallen into liquid. Unplug immediately.

1.33 Never operate this product outdoors in the rain or in a wet area.

1.40 Danger: To Reduce Risk Of Explosion or Fire...

1.41 Do not use this pump in or near explosive atmospheres or where aerosol (spray) products are being used.

1.42 Do not pump anything other than atmospheric air.

1.43 Do not pump combustible liquids or vapors with this product or use in or near an area where flammable

or explosive liquids or vapors may exist.

1.44 Do not use this product near flames.

WARNING

Failure to observe the above safety precautions could result

in severe bodily injury, including death in extreme cases.

4

SECTION 2: INSTALLATION

2.10 Introduction

2.11 This manual has been compiled not only for the care and maintenance of the Welch Aspiration/Filtration

Vacuum System now in your possession, but as a helpful reference and guide to prevent many problems
which may occur if used improperly.

2.20 Unpacking

2.21 Carefully remove the Aspiration/Filtration Vacuum System from the shipping case. Preserve all

paperwork for future reference. If damage has occurred from shipment a claim must be filed with the
carrier immediately; preserve the shipping carton for inspection by the carrier. If you are required to
communicate with your dealer or Welch Vacuum, be sure to include your order numbers for quick
identification. Do not return the pump to the factory without first calling for a returned goods number.

2.30 Pump Mounting

2.31 Rubber feet are attached to the pump. Rubber feet are excellent for applications involving a

semi-flexible surface such as a bench top; they help to isolate noise and eliminate creeping.
All Aspiration/Filtration Vacuum Systems should be mounted on a horizontal plane.

2.40 Pump Location

2.41 The Aspiration/Filtration Vacuum System should be located preferably in a clean, dry, and well

ventilated area. Please be sure not to block the ventilation holes located on the motor housing. The
system should be placed where the surrounding temperature remains between 10°C and 40°C
(50°F and 104°F). Always check to insure the location chosen is protected from direct or indirect
moisture contact. Welch recommends that the pump be installed at the highest point within the system
to prevent possible water condensate from entering the pump. The pump should be located as closely to
its system in order to utilize it most efficiently.

WARNING
The motor is thermally protected and will automatically restart unexpectedly
when the overload device resets. Don’t pump flammable or explosive gases or

vapors or operate this pump in an atmosphere containing flammable or

explosive gases or vapors.

5

2.50 Intake And Discharge Provision

2.51 The vacuum regulator and vacuum dial gauge is attached to the collection jar. The vacuum regulator

allows the vacuum level to be set between roughly atmospheric pressure and the maximum vacuum
allowed for the pump model. The collection jar and hydrophobic filter keeps water from accidentally
being drawn into the unit. The regulator allows discharge pressure to be set between atmospheric and
the maximum possible for the pump model. Model 2511 is equipped with a pressure port.

Note: Adjusting the vacuum regulators will affect the performance of the pump.

IntakePressure / Exhaust

Vacuum GaugeVacuum Regulator

Model 2511B-75 & 2511C-75

Discharge / ExhaustIntake

Vacuum Regulator Vacuum Gauge

Model 2515B-75

Intake

Vacuum Regulator

Model 2515C-75

WARNING

Never block the discharge port. If the exhaust is blocked, pressure will build-up

in the pump above its rated operating pressure

Be sure to call Welch technical service prior to start up at 847-676-8800 if you have any questions.

6

.

Discharge / Exhaust

Vacuum Gauge