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Mahr GmbH • Multimar 844 S

Dear customer,

Thank you for choosing a product by Mahr GmbH. We kindly request that you follow the 

instructions below to ensure the long-term precision of your instrument.

We operate a policy of continuous improvement and are constantly developing our products. 

Therefore, it is possible that there may be slight differences between the text and illustrations 

in this document and the instrument in your possession, especially with regard to type 

designations. We reserve the right to make changes to the design and scope of supply, the 

right to undertake further technical developments, and all rights relating to translation of this 

documentation.

© by Mahr GmbH, Esslingen, Germany

The following symbols are used in these operating instructions:

 

General information

 Caution

 

Caution, hazard

Failure to follow instructions marked with this symbol may lead to inaccurate results 

and cause damage to equipment.

1. Introduction

Intended use

The 844 S setting instrument is used to adjust the length measurements in production, quality 

control and in the workshop. 

Intended use is subject to compliance with all published information relating to this product. 

Any other use is not in accordance with the intended use. The manufacturer accepts no liability 

for damages resulting from improper use. All statutory and other regulations and guidelines 

applicable to the area of use must be observed. 

The operating, maintenance and repair information detailed in these operating instructions 

must be followed.

To get the most out of this measuring instrument, you should read the operating instructions 

prior to commissioning the instrument.

2.  Delivery of the 844 S setting instrument includes:

-   Light alloy bar with gage block holder

-   Operating instructions

!

Summary of Contents for Multimar 844 S

Page 1: ...ing instrument 3722643 Mahr GmbH Standort Esslingen Reutlinger Str 48 73728 Esslingen Germany Tel 49 711 9312 600 Fax 49 711 9312 756 mahr es mahr de www mahr de 1116 Multimar 844 S Operating instruct...

Page 2: ...rmation Caution Caution hazard Failure to follow instructions marked with this symbol may lead to inaccurate results and cause damage to equipment 1 Introduction Intended use The 844 S setting instrum...

Page 3: ...ant information prior to commissioning the setting instrument To guarantee your setting instrument for extended use use a dry cloth to remove any dirt from the instrument following use Then use oil to...

Page 4: ...r 844 T and Marameter 844 N to a nominal size Gage blocks are used to set a highly precise dimensional reference Type Application range Dimensions light alloy base bar Order no 844 S 0 400 mm 520 x 80...

Page 5: ...lement 2 Mobile gage block clamping element 3 Clamping lever 4 Tension lever for eccentric clamp 5 Gage block holder 6 Movable gage block clamping unit 7 Light alloy bar with adjustable feet 8 Removab...

Page 6: ...6 Mahr GmbH Multimar 844 S 6 Accessories Suitable for Type Figure Multimar 844 T Multimar 25 EWR 844 Sp 844 Sph MaraMeter 844 N 844 Neb 844 Neb 844 Neb 844 em Multimar 844 T MaraMeter 844 N 844 Sf...

Page 7: ...100 mm 2 pairs Pair 4503511 Setting bridge to support the 844 N centering bridge L x W 70 x 12 mm 844 N Measuring range 18 250 mm Unit 4474080 Setting bridge to support the 844 N centering bridge L x...

Page 8: ...the example of a Multimar 844 T 7 1 Insert the parallel jaws10 and gage block combination A into the gage block holder 5 between the two clamping elements 1 and 2 7 2 Put the tension lever for the ecc...

Page 9: ...ltimar 844 S 4 3 7 4 Brace the parallel jaw gage block combination securely by tightening the eccentric clamp using the tension lever 4 7 3 Apply the clamping unit and clamps using the clamping lever...

Page 10: ...0 mm 844 Sf Base plate 12 for vertical use if necessary Handle the 844 Sf base plate carefully due to its heavy weight 7 5 kg We recommend using the included table clamps to attach the base plate to t...

Page 11: ...11 Mahr GmbH Multimar 844 S 12 11 11...

Page 12: ...12 Mahr GmbH Multimar 844 S 8 2 Adjusting a Multimar 844 T 8 2 1 Positioning the Multimar 844 T for inner measurement 8 2 2 Positioning the Multimar 844 T for outer measurement...

Page 13: ...the Multimar 844 T with long measuring arms When using long measuring arms 844 Sph spacers 11 are used on the 844 Sp parallel jaws 10 to increase the measuring depth 1 pair of 844 Sph 11 is required...

Page 14: ...eb setting bridge 13 2 Gage block combination A in accordance with the reference dimension 3 844 em flat jaw 14 4 844 Sf base plate 12 for vertical use if necessary Setting a dimensional reference Li...

Page 15: ...13 14 8 5 Setting a MaraMeter 844 N The display unit dial comparator or dial gage is set by determining the reversing point MIN value by swiveling the MaraMeter 844 N between the measuring surfaces o...

Page 16: ...he work piece should occur Example A precise hole in a turned part should be measured in the lathe with a 844 N bore gage To do this the 844 N bore gage must be inserted horizontally It is in exactly...

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