Campbell Met One 034A-L Návod k obsluze stáhnout pdf (Strana 19)

Manual

CR10X Storage and Control Module

The last step in the installation process is protecting the system against unauthorized user interventions. For this

purpose a password is introduced, which blocks access to (a) modifying the active datalogger program, (b) loading

new programs, and (c) changing the memory allocations.

To enter a password, type in the following commands (given between double quotes for presentation purposes):

“*C” (activates C mode)

“2000” (the proposed default password for all dataloggers)

“A” (keyboard equivalent of ENTER)

Box 3: Temporarily De-activate Security

Security needs to be temporarily disabled when the user wants to reload METSTAT. To this end, type the

following commands on the CR10KD (for presentation purposes given between double quotes):

“*C” (activates C mode)

“2000” (the proposed default password for all dataloggers)

“A” (keyboard equivalent of ENTER)

On entering “*0” security is automatically re-enabled.

This completes the installation process, and the datalogger should now be operational and executing the periodic

measurements according to the instructions encoded in METSTAT.

The user can check the initial performance of the system by entering ‘star-six’ mode. This mode displays the input

storage values, which represent the ‘fresh’ measurements. Annex 4 presents the respective input locations per

variable used by METSTAT. The user can check if these values are within the expected range, and corresponding to

the present weather conditions. Use “A” to advance to the next input location, and “B” to return to the previous one.

Please note that METSTAT has an execution interval of 300 seconds. Hence the values shown in star-six mode do not

represent the instant weather conditions.

If all values are within a satisfactory range, disconnect keyboard display and storage module. Installation of the

CR10X is now completed.

Paragraph 2.6 presents a Prompt Sheet, which serves as a memory aid while in the field. It contains a comprehen-

sive overview of relevant keyboard commands.

2.3 Use

The operation of the CR10X does not require any additional actions of the user once successfully installed. Sensor

activation, measurements, initial data processing, and data storage are all fully automatic, according to the instruc-

tions given in METSTAT.

METSTAT includes a routine called ‘instruction 96’. This instruction checks every 5 minutes if the SM4M storage

module is connected to the system. If this is the case, METSTAT automatically initiates data transfer from the log-

ger’s Final Storage Areas to the SM4M. No further user interactions are needed. If the SM4M is not connected to the

datalogger, which is of course the dominant situation, METSTAT simply aborts instruction 96 and continues with the

next line in the program.

Hence downloading data from the CR10X datalogger to the SM4m storage module is accomplished by simply

connecting the SM4M to the logger for minimal five minutes. However, to be positively sure that all data have been

transferred, it is advised to keep the storage module connected for at least 15 minutes.

Experienced users can manually invoke data transfer by using the star-eight mode on the keyboard display. To this

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Campbell Met One 034A-L Návod k obsluze Strana 19