Chapter: Risk reduction and safe use
30 M10-17313-EN
Operator Protection Overview
The majority of hazards for operating materials testing systems are associated with:
• rapid movement of the crosshead causing crush injuries
• rapid closing of pneumatic grips causing pinch injuries
Operator Protection in Bluehill
®
provides a mechanism that lets you limit crosshead jog
speed and reduce grip closing pressure while you are setting up a test.
The default conditions during test set up are:
• crosshead jog speed reduced to a maximum of 600 mm/min, and can be set lower
if your risk assessment requires it
• grip closing pressure reduced to a default of 15 psi, and can be set lower if your risk
assessment requires it.
Refer to “How Operator Protection works with grips” on page 66 for more
details.
Operator Protection lets an Administrator configure the testing system to be consistent
with the risk assessment for that system.
Access to the controls for Operator Protection is password protected. If you have
Administrator rights you can modify Operator Protection in the Admin tab in Bluehill
®
.
Refer to “Operator Protection” on page 55 for more details.
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