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Fault finding

Refer also to the appropriate user's guide for the probe.

Loss of measuring accuracy

Possible causes

Remedy

Mounting not secure.

Check that the MH8 is correctly mounted to the shank and that the

screws are secure. Check the clamping mechanism in the CMM quill.

MH8 not fully locked. 

Ensure that the lock lever is turned fully clockwise.

Excessive force imparted to probe after locking.

Unlock and re-lock the MH8.

MH8 overloaded. 

Use only with the specified probe and extension combinations.

Faulty probe. 

Check by substitution.

MH8 worn or damaged.

Check by substitution or return to Renishaw or your supplier.

Axes ‘rattle' when rotated

Possible causes

Remedy

MH8 not fully unlocked.

Turn lock lever fully anticlockwise before attempting to reorientate

probe.

MH8 user's guide

www.renishaw.com

 

 

Issued 02 2020

14

Содержание A-1332-0002

Страница 1: ...MH8 user s guide Documentation part number H 1000 5190 06 B MH8 user s guide www renishaw com Issued 02 2020 1 ...

Страница 2: ...marks of their respective owners All trademarks and trade names are acknowledged WEEE The use of this symbol on Renishaw products and or accompanying documentation indicates that the product should not be mixed with the general household waste upon disposal It is the responsibility of the end user to dispose of this product at a designated collection point for waste electrical and electronic equip...

Страница 3: ...r software without incurring any obligations to make changes to Renishaw equipment previously sold Packaging To aid end user recycling and disposal the materials used in the different components of the packaging are stated here Packaging component Material 94 62 EC code 94 62 EC number Outer box Corrugated fibreboard PAP 20 Packaging insert Corrugated fibreboard PAP 20 Bag Low density Polyethylene...

Страница 4: ...t be used in a residential area or connected to a low voltage power supply network which supplies buildings used for residential purposes REACH regulation Information required by Article 33 1 of Regulation EC No 1907 2006 REACH relating to products containing substances of very high concern SVHCs is available at www renishaw com REACH China RoHS Contact Renishaw plc or visit www renishaw com China...

Страница 5: ...ion of the stylus The head can carry probes fitted with a Renishaw M8 connector The TP20 and TP6 touch trigger probes are recommended The MH8 is available with a range of shanks to suit the mounting arrangement specified by the manufacturer of the CMM MH8 user s guide www renishaw com Issued 02 2020 5 ...

Страница 6: ...tation is locked the probe is kinematically constrained in a highly repeatable spatial position This means that after initial qualification of the stylus tip in the positions required for gauging the workpiece the probe may be reorientated to any of the qualified positions without the need for requalification A red LED is provided on the front of the head to indicate the probe s status The LED may...

Страница 7: ...TK4 MS5 shank A 1332 0007 MH8 TK4 MS7 shank A 1332 0008 MH8 TK4 MS9 shank A 1332 0009 MH8 TK4 MS10 shank A 1332 0010 MH8 TK4 MS13 shank A 1332 0011 MH8 TK4 MS15 shank A 1332 0014 MH8 TK4 MS17 shank A 1332 0012 MH8 TK4 D shank A 1042 1486 S1 C spanner A 1047 3932 S9 double ended C spanner M 5000 3540 S7 stylus tightening tool P TL03 0150 Hexagon key 1 5 mm AF TP2 TP6 adjustment MH8 user s guide www...

Страница 8: ...ary Special or customised mounting arrangements are possible Please contact your supplier or Renishaw for details of our custom products service The mounting must be absolutely rigid as any movement during normal operation of the head will add errors to the measurement system If the head is replaced or repositioned in the quill it will be necessary to requalify all of the head positions in current...

Страница 9: ...til it is finger tight Fit the S1 C spanner supplied to the location holes in the probe body and tighten by hand The recommended tightening torque is 0 3 Nm 0 5 Nm Refer also to the user s guide for the probe type being used Extension bars Probe reach may be extended by 50 mm using a PEL1 extension bar Use of the PEL2 PEL3 or PE series extension bars is not recommended MH8 user s guide www renisha...

Страница 10: ...er to the fully clockwise position Qualify the stylus tip s according to the CMM supplier s instructions Change the orientation of the probe to the next desired position and qualify the stylus tip s Repeat the qualification process for all desired orientations and stylus tips Commence gauging ensuring that the correct qualification data is recalled for each head position Periodic requalification s...

Страница 11: ...Dimensions MH8 user s guide www renishaw com Issued 02 2020 11 ...

Страница 12: ... module and 10 mm stylus length 2 5 μm Technical data Range of articulation A axis 0 to 90 in 15 increments B axis 180 in 15 increments Maximum load TP6 no extension allowed TP20 or TP2 probe 50 mm extension PEL1 Operating temperature range 10 C to 40 C Storage temperature range 10 C to 70 C Probe connector Renishaw M8 1 25 mm 5 mm Electrical connector 5 pin DIN 180 Sealing IP30 Weight 205 g witho...

Страница 13: ...common with all precision measuring equipment regular inspection and cleaning are recommended to ensure continued high performance Maintenance is limited to wiping the outer surfaces axes scale labels and mounting face of the probe connector with a clean dry cloth or proprietary cleaning material MH8 user s guide www renishaw com Issued 02 2020 13 ...

Страница 14: ...the lock lever is turned fully clockwise Excessive force imparted to probe after locking Unlock and re lock the MH8 MH8 overloaded Use only with the specified probe and extension combinations Faulty probe Check by substitution MH8 worn or damaged Check by substitution or return to Renishaw or your supplier Axes rattle when rotated Possible causes Remedy MH8 not fully unlocked Turn lock lever fully...

Страница 15: ...tails please visit our main website at www renishaw com contact Renishaw plc New Mills Wotton under Edge Gloucestershire GL12 8JR United Kingdom T 44 0 1453 524524 F 44 0 1453 524901 www renishaw com cmmsupport Issued 02 2020 ...

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