RZR 50

Instruction Manual

Thank you for purchasing a Heidolph Instruments product. This item has been designed, made and inspected in compliance with DIN EN ISO 61010 for long-term and flawless operation.

SUMMARY

SUMMARY .................................................................................................................................. 2

STANDARD HARDWARE & ACCESSORIES ............................................................................ 3

GENERAL INFORMATION ......................................................................................................... 4

SAFETY INFORMATION.............................................................................................................4

DESCRIPTION ............................................................................................................................ 6

ASSEMBLY ................................................................................................................................. 7

1.O

PERATION ............................................................................................................................. 8

2.Built-in thermal protection and overload mechanism ............................................................. 9

CLEANING & SERVICING .......................................................................................................... 8

STORAGE ................................................................................................................................. 11

DISPOSAL................................................................................................................................. 11

SPECIFICATIONS ..................................................................................................................... 11

WARRANTY, LIABILITY & COPYRIGHT ................................................................................. 10

QUESTIONS / REPAIR WORK ................................................................................................. 11

CE-DECLARATION OF CONFORMITY.................................................................................... 12

Important information

Advice about power cord / mains supply

Caution: mandatory action

Caution: fire- and explosion hazard

Advice about maintenance / repair

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STANDARD HARDWARE & ACCESSORIES

Standard Hardware product

RZR 50 support rod

2,5 mm Allen key

4,0 mm Allen key

10.5 mm chuck

T-handle (for chuck)

Instruction Manual

Accessories & Stirring tools (optional) product stand telescope stand clamp flexible shaft with chuck 8,5mm flexible stirrer coupling stirring paddle BR 10 stirring paddle BR 11 stirring paddle BR 12 stirring paddle BR 13 stirring paddle BR 14 prop-type stirring paddle PR 30 prop-type stirring paddle PR 31 prop-type stirring paddle PR 32 prop-type stirring paddle PR 33 turbine TR 20 turbine TR 21 half moon HR 18 anchor AR 19 prop-type stirring paddle PR 39 enclosure NS 29/32 quantity P/N

115 V / 60 Hz

1

1

1

1 501-15000-08

1 22-02-14-01-16

1

1

02-07-01-01-04

02-07-01-01-01

509-02000-00

02-07-03-01-02

01-005-001-78

P/N

570-12000-00

570-12100-00

570-22000-00

509-07000-00

509-03000-00

509-10000-00

509-11000-00

509-12000-00

509-13000-00

509-14000-00

509-30000-00

509-31000-00

509-32000-00

509-33000-00

509-20000-00

509-21000-00

509-18000-00

509-19000-00

509-39000-00

509-09000-00

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GENERAL INFORMATION

Unpack your item carefully.

Inspect for damage and report such damage or missing parts to your supplier right away.

Read your Instruction Manual carefully. Take time to save time when working with your product. Make sure that every user has read and understood the Instruction Manual.

Please store the Instruction Manual in a place easily accessible to every user.

IF ALL ELSE FAILS, READ THESE INSTRUCTIONS !

For the Continental US they feature a US-standard plug (NEMA Pub.No.WDI.1961 ASA

C 73.1 . 1961 page 8 15A 125V).

For using the item in a country with deviating outlet / plug systems, we recommend to use approved adapters or to have an electrician replace the standard plug with one suiting your needs.

As shipped, the item features a protective ground wire. When replacing the original plug, make sure to reconnect this protective ground wire in the new plug !

SAFETY INFORMATION

Please comply with all safety and accident-prevention regulations as in force for

laboratory work !

Use extra care when working with flammable substances; refer to safety data sheets.

When connecting your item with your local power supply, please make sure your item is designed for your local voltage; go by the data plate on the item.

Turn your power switch OFF whenever the item is not used, or before disconnecting the plug.

Repair work is limited to technicians approved by Heidolph Instruments.

Use extra care when working in the vicinity of flammable and explosive substances. Motors are of non-sparking type, the item itself however is not explosionproof.

Please connect your stirrer with a protective-ground outlet only.

Please strictly comply with current safety regulations for machines exposing rotating shafts.

Your item needs a solid stand.

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DESCRIPTION

The Heidolph RZR 50 Stirrer is a general-purpose, high-torque stirrer. The RZR 50 is driven by a powerful, maintenance-free, totally-enclosed capacitor motor equipped with ball bearings and built-in thermal protection overload mechanism (with reset switch).

The speed range is variable from 45-2000 rpm, over two ranges, and the range change-over can be performed during standstill or while the stirrer is in operation. The gear mechanism is of the friction-type providing exceptionally long life and high torque transfer (see torque chart).

By varying the stirrer speed and by choosing the proper size paddle, the stirrer can provide exactly the right mixing action needed for the fluid to be mixed. A number of paddles are available - see accessories. There are a few simple rules of thumb for selecting the impeller of your needs:

• A small impeller at a high speed gives intense turbulent mixing of low viscosity

fluids.

• A larger impeller at lower speeds gives less turbulent, less intense mixing. This usually will incorporate less air and less foam, but will not break up agglomerate or dissolve solids as quickly.

• Larger impellers and lower speeds are needed as viscosity increases. If a pasty material will not move around in the container (but moves readly near the impeller) increase the impeller size and reduce speed.

• As container size increases, impeller size should increase.

This stirrer was designed to be user-friendly, compact and light weight, ideal for cramped conditions in the laboratory. The RZR 50 runs vibration-free and very quiet and can be used for continuous operation.

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ASSEMBLY

The Heidolph RZR 50 Stirrer comes complete with support rod, 4 mm Allen key, chuck, chuck key, and 2.5 mm Allen key.

1. Loosen Allen set screw (a) with the 4mm Allen key (d). There are two knurled

Depressions on one end of the support rod (b) and this end of the support rod should be inserted into the opening of the mounting bracket (c) at the back of the unit with the knurled depressions facing up. When tightening the set screw

(a) make sure the set screw is tightened into one of the two knurled depressions.

2. Insert the other end of the support rod into the opening of the clamp (h) (clamp

Order No. 570-22000-00, stand Order No. 570-12000-00) and tighten using handle (i).

3. Either the chuck (f) or the flexible stirrer coupling (Order No.509-04000-00) depending on the application, is used to hold the paddle.

4. Simply insert the chuck or flexible coupling over the hollow drive shaft (g) and tighten the set screw (e) with the 2.5 mm Allen key.

5. Insert the paddle shaft (see accessories) into the open chuck, adjust the paddle to the desired height (the hollow shaft allows the shaft to come through the top of the stirrer if necessary and provides great flexibility for fast and efficient paddle adjustment), tighten the chuck's outer ring by hand, and then secure with the chuck key.

When using the flexible stirrer coupling .insert the paddle shaft in the coupling's connector and tighten by turning the sleeve to the right.

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Operation

1. After preparing the operation to be performed, the unit is ready to be turned on. Plug the cable into the wall socket

CAUTION: Ensure the unit's voltage and the line voltage (i.e. wall socket) are the same!

The serial plate on the back of the unit will give the unit's voltage and cycles (in Hz).

The ON-OFF rocker switch on the front of the unit is used to turn the instrument on and off. The pilot lamp should light up when the instrument is operational.

2. The control knob on the front of the unit adjusts the stirring speed from 45 to 2000 rpm.

Speed is adjustable, whether the stirrer is running or not. The RZR 50 has 2 speed ranges: Range 1 from 45-300; and Range 2 from 300-2000. On the control knob, two scales are found. The left side, indicated by the number “1”, is Range 1. The right side, indicated by the number “2", is Range 2. The knob indicates the speed on the appropriate scale, depending upon which speed range is employed.

In order to switch from one range to the other, the switch on the right side of the stirrer (see diagram) must be used. The speed range, either "1" or "2" (indicated by the number on the switch) is chosen by lining up the desired number with the red dot.

The setting "0" keeps the motor running but disengages the shaft.

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Built-in Thermal Protection and Overload Mechanism

The RZR 50 has, built into its winding, a mechanism to prevent motor burn-out or overload. The stirrer must cool off first before resuming operation if this mechanism is triggered. Turn the stirrer OFF with the rocker switch and allow the stirrer to cool. To restart, press the reset button (see diagram) on the top of the unit and turn the unit.

CLEANING & SERVICING

Cleaning: wipe housing clean with a damp cloth (add some sort of mild liquid soap).

Note

To avoid damage to the surface finish, avoid using chlorine bleach, chlorine-based detergents, abrasive substances, ammonia, rags or cleaning agents containing metal particles.

Service

CAUTION: Always disconnect the unit from the line voltage (i.e. wall socket) before servicing.

Should the stirrer make a knocking sound during operation or slip under load, the friction hemisphere must be replaced.

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Changing the Friction Hemisphere

1. Remove the motor housing (a) (see diagram) by removing the three screws. The gear mechanism is then lying open in the other half of the housing.

2. Remove the two-step pulleys (b. and c.)

3. The friction hemisphere can now be lifted out with the help of a screwdriver. Replace with a new one. The pressure of the new hemisphere is adjusted at point (d) with a 4 mm Allen key.

4. To assemble, reverse the order of the steps above.

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STORAGE

1. We recommend to store the item and its components in its original box, or a similar container that offers adequate protection against damage in transit. Tape the box securely.

2. Store the item in a dry place.

1. Caution

Do not jolt or shake the item during transport.

DISPOSAL

For disposal, please comply with your local or national regulations.

Split by metal, plastic, etc.

Packing material to be treated as described above (material split).

SPECIFICATIONS RZR 50

Voltage 115 V/ 60 HZ or 220 V/ 50 Hz

Input 105W

Output 38W

Switch on-off with pilot lamp

Power supply 2 m (6.5 ft) cable with plug

Gear friction gear with steplessly adjustable speed

Speed range range 1: 45-300 range 2: 300-2000

Weight 3.8 kg (8.5 Ibs)

WARRANTY, LIABILITY & COPYRIGHT

Warranty

Heidolph Instruments guarantees warranty that the present product shall be free from defects in material (except wear parts) and workmanship for 3 years from the date shipped off the manufacturer’s warehouse.

Transit damage is excluded from this warranty.

To obtain such warranty service, contact Heidolph Instruments (Tel.: +49 - 9122 - 9920-

68) or your local Heidolph Instruments Dealer. If defects in material or workmanship are found, your item will be repaired or replaced at no charge.

Misuse, abuse, neglect or improper installation are not covered by this warranty guarantee. Alterations to the present warranty guarantee need Heidolph Instruments’ consent in writing.

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Exclusion Clause

Heidolph Instruments cannot be held liable for damage from improper use or misuse.

Remedy for consequential damage is excluded.

Copyright

Copyright in pictures and wording of the present Instruction Manual is held by Heidolph

Instruments.

QUESTIONS / REPAIR WORK

If any aspect of installation, operation or maintenance remains unanswered in the present Manual, please contact the following address:

For repair services please call Heidolph Instruments (phone: +49 - 9122 - 9920-68) or your local, authorized Heidolph Instruments Dealer.

Note

You will receive approval for sending your defective item to the following address:

Heidolph Instruments GmbH & Co. KG

Lab Equipment Sales

Walpersdorfer Str. 12

D-91126 Schwabach / Germany

Tel.: +49 – 9122 - 9920-68

Fax: +49 – 9122 - 9920-65

E-Mail: [email protected]

Note

If you are based in the United States of America, please contact Heidolph US :

Heidolph Instruments, LLC

Lab Equipment Sales

2615 River Rd.

Cinnaminson, NJ 08077

Phone: 856-829-6160

Fax: 856-829-7639

E-Mail: [email protected]

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Safety Information

When shipping items for repair that may have been contaminated by hazardous substances, please:

-

-

- advise exact substance take proper protective meason to ensure the safety of our receiving and service personnel

mark the pack IAW Hazardous Materials Act

CE-DECLARATION OF CONFORMITY

We herewith declare that the present product complies with the following standards and harmonized documents:

EMC-guideline (89/336/EWG) :

EN 61326: 1997 + A1:1998 + A2:2001+ A3 2003

EN 61000-3-2: 2000

EN 61000-3-3: 1995 + 1997 + A1:2001

EN 61326: 1997 + A1:1998 + A2: 2001+ A3 2003

EN 61000-4-3:2002 +A1:2002

EN 61000-4-5:1995 +A1:2001

EN 61000-4-6:1996 +A1:2001

EN 61000-4-8: 1993

EN 61000-4-11:1994 + A1:2001

Low-voltage guideline (73/23/EWG):

EN 61010-1

EN 61010-2-051

01-005-001-78-0 04/2006

© Heidolph Instruments GmbH & Co. KG

Technical changes reserved. Publication not mandatory.

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