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EN - Safety

CAUTION: Before unpacking and installing the PH20 system, the user should carefully read the safety instructions below and ensure that they are followed at all times by all operators. Operators must be trained in the use and application of the PH20 system and accompanying products, in the context of the machine it is fitted to, before being allowed to operate that machine.

Please ensure that you understand all safety instructions. Familiarisation with the PH20 system components is recommended.

CAUTION: Permanent magnets are used in some components of the PH20 system and associated products. It is important to keep them away from items which may be affected by magnetic fields, e.g. data storage systems, pacemakers and watches etc.

Operation and maintenance

The product is only to be used with the appropriate Renishaw controller.

Installation of the PH20 system must be performed by trained personnel.

DO NOT edit any of the system files directly, the appropriate commissioning software package should only be used by trained personnel.

It is recommended that the power is removed before performing any maintenance operations.

Maintenance is restricted to procedures described in the maintenance section.


Beware of unexpected movement. The user should remain outside of the full working envelope of probe head and stylus. The machine supplier should ensure the user is aware of the full working envelope of the system.

In all applications involving the use of machine tools or CMMs, eye protection is recommended.

It is the machine supplier's responsibility to ensure that the user is made aware of any hazards involved in operation, including those mentioned in Renishaw product documentation, and to ensure that adequate guards and safety interlocks are provided.

Refer to the machine supplier's operating instructions.

Take care to avoid collisions between the head and workpiece or CMM table.

DO ensure that the head is mounted as rigidly as possible in the CMM's quill.

DO ensure that the head is moved clear of any obstruction before requesting a position change.

DO NOT apply force to any moving parts of the head.

DO NOT move the head axes by hand when locked or unlocked.

The product and the system components contain no user serviceable parts. No attempt should be made to disassemble any part of the product. In the event of a problem please contact your supplier for assistance.

The cables must meet Renishaw specifications. Incorrect cabling could cause damage to the equipment.

Under certain circumstances the probe signal may falsely indicate a probe-seated condition. Do not rely on probe signals to stop machine movement.

Probe trigger override will prevent machine backing off in the event of a probe collision.

The probe joint is designed to release the stylus module in the event of a crash.

The product has direct drive motors and the lowest risk reaction to an E-STOP is to perform a fast stop followed by holding position. As such, the head motors will remain live, even if the E-STOP button is depressed

The PH20 head must be transported in Renishaw supplied packaging.

This equipment is not suitable for use in a potentially explosive atmosphere.