Datasheet

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Data Retrieval, Processing and Final Storage in the Nile Basin Database
PC208W Datalogger Support Software
5.2.6 Trouble Shooting
Problem 1: SM4M does not respond by clicking the “Connect” button and is giving the message “Standard
Prompt Not Detected”.
Cause: 1: Cables are not properly connected 2. Power supply 3. SC532A interface is not properly connected 4.
Problem with the COM Port or wrong SMS “Setup”
Remedy 1.1: Check if the cables are connected firmly and if they are according to the following diagram
Remedy 1.2: Check if the provided class 2 transformer is connected to a 110VAC power supply. For this purpose
use a quality 220/240 to 110/120 converter. The SC532A interface needs 12 VDC to power up therefore the class
2 transformer has an output of 12VDC which is sufficient to power the interface. Do not use any other unreliable
adaptor with an output of 12 VDC to power the interface otherwise the interface will blow and will stop working.
Remedy 1.3: Both ends of the SC532A interface have a nine pin holes. The “PC” marked end of the interface should
be connected to the nine pin computer cable while the “Peripheral” marked end of the interface should be connected
to the nine pin SC12 cable.
Remedy 1.4: The computer cable should be, in most cases using either COM Port 1 or then COM Port 2. In the
SMS “set up” check first COM1 and if it does not work then check COM2. If the problem persists then check if
the respective COM Port is not shared by any other software. In the SMS setup do not highlight/activate the “Via
Datalogger” check box.
5.3 Report Utility of the PC208W 3.3 Software
5.3.1 Introduction
The Report utility, also often referred to as Split, is used to separate individual meteorological parameters from the
raw data files and put them into a format used in the various ‘target’ databases. It essentially performs the following
operations (a) reads an input raw data file (b) extracts, splits and re-arranges data in accordance with the predefined
criteria specified in a specific parameter file for each type of data; and (c) stores the result in an output file.
5.3.2 Processing Data from Met Station
5.3.2.1 General
Each Automatic Meteorological Station established within the Project is equipped with 6 electronic meteorological
sensors for measuring a set of six climatological parameters i.e. (a) solar radiation (b) air temperature (c) relative
humidity (d) wind speed (e) wind direction and (f) rainfall. These parameters are measured at an interval of 5 min-
utes. At the same time the datalogger periodically records two station performance indicators: battery voltage and
program signature. The METSTAT datalogger program has been designed to process all measurements and store in
its memory the following four groups of data:
5-minute rainfall time series with date and time of occurrence. To avoid excessive repetition of zero rainfall •
values and thus waste of datalogger memory, the 5-minute intervals during which no rainfall has occurred
are omitted from the records.
Hourly time series containing values of the following meteorological parameters: average hourly air •
temperature, relative humidity, wind speed, wind direction, and cumulative values of hourly solar radiation
Daily time series containing values of the following meteorological parameters: daily average, maximum and •
minimum air temperature; daily average relative humidity, wind speed and direction; and cumulative values
of hourly solar radiation.
Daily time series containing two station performance indicators – battery voltage and datalogger’s programme •
METSTAT signature. These are essential to monitor and maintain in good order for proper functioning of
station’s datalogger and 6 meteorological sensors.