An environmental severity measurement tool measures acceleration along 3 axestodetermine shock and vibration affecting a downhole tool in which theenvironmental severitymeasurement tool is disposed. The environmental severity measurement toolincludes areplaceable battery and electronics disposed within an external housing. A pinprovides a way toensure the environmental severity measurement tool is oriented in a knownorientation. Datasampled by the tool can be downloaded from the tool to an external devicethrough a connectorport of the electronics. Software in the tool controls the operation of thetool and can beconfigured from an external device.
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