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To be able to identify the exact instrument or sensor, data has been obtained with, is crucial to be able to define what exactly has beeb measuered, repeat an experiment or measure, as well as to evaluate the precision and reliability of a measurement. Nevertheless this information is not recorded in a standard way in most cases.

We therefore recommend to assign PIDs to all instruments, sensors or other devices producing measurements, whether they are in laboratories, on field stations, platforms, like ships or airplanes, or other places. The process to register PIDs may be subject to the disciplinary culture, however, it may be connected to the acquisition of the instrument or device, as well as to the operation, e.g. in electronic lab notebooks (ELN) or other protocol tools.

PIDInst is used to identify instruments in data infrastructures.

For organizations this means:

• Employ measures and incentives to register instruments with PIDInst at acquisition.
• make a person responsible to maintain the PIDInst for each instrument (e.g. Lab technicians).

For technicians:

• register a PIDInst for instruments which weren’t registered yet.
• keep the PIDInst related metadata of your instruments current.
• Keep a written record of the PIDInst on every instrument, where possible
• share the PIDInst with the customer with any measurement data you deliver.

For researchers it means:

• Record an PIDInst with any measurement. You should find it on the instrument.

For data infrastructures:

• record a PIDInst with instruments registered in data infrastructures.
• treat PIDInst metadata as the primary source of truth and update your own metadata accordingly.
• inform the responsible person if you think the PIDInst metadata is not accurate.

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[Format: Wer! macht was! wo! wann! unter welchen Voraussetzungen!]

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[Format: Wer! macht was! wo! wann! unter welchen Voraussetzungen!]