DCP LogIT DataMetern1000 Manual de instruções - Página 11

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Meter

The meter facility allows you to monitor sensors and adapters without actually

storing data. When DataMeter is working as a meter a small M appears in the

bottom left of the display. Plug sensor(s) into any socket and the display will show

sensor SI units and readings directly below.

•Battery or Power pack

There are icons to indicate battery and charging conditions which are explained

in the overview section at the front of this manual. Only use the mains power

pack/charger supplied (or the original LogIT SL power pack). If it does not have

LogIT on it, DON'T USE IT!

•Power save

To save battery power DataMeter switches itself off if no button has been

pressed for 2 minutes. However you can override this by selecting 'Meter stay on'

from the main menu - the M symbol on the screen will flash and DataMeter will

then stay on until you switch it off or start logging. If you are using DataMeter with

the power pack/charger then the display will automatically stay on until you

switch it off.

Tip A quicker way to make the meter stay on is to hold green button down for

more than 2 seconds when you switch DataMeter on.

Real Time Logging

n real time DataMeter acts as a 'live' interface between sensors and the

computer. The computer has total control over logging rates/time span and

DataMeter sends back the sensor calibration and live data (no data is stored in

DataMeter). As the computer has so much control, actual operation and function

of real time logging will very much depend on which computer and software you

have. However, here are the basics (it may also be useful to refer to the Real Time

logging set-up picture on page 6):

• Connect DataMeter to your computer using the link cable

• Load datalogging software on computer (also select

DataMeter as the interface type if required by your software)

• Set up logging rate and duration of experiment as required.

• Insert sensors required and check readings on DataMeter display

• Start logging with software (DO NOT press DataMeter's

green button). Display should say 'Computer Link on'.

• When required select stop logging on the computer

Tip The speed of real time datalogging is limited by the relatively slow serial link

between DataMeter and Computer. If you need fast datalogging use DataMeter

in remote AutoLog or Programmed logging mode and then download to your

computer.

Downloading the stored data

Having logged data in DataMeter using AutoLog, Snapshot or Programmed

logging you need to retrieve and use it.

There are basically two ways of downloading or 'exporting' data.

1 Dedicated Datalogging software

LogIT brand software, and most third party datalogging software supports

DataMeter (see 'Software' in the reference section). With datalogging software

all you have to do is connect DataMeter to your computer using the link cable

and use an appropriate menu to load data. You may be given a choice from 4

sets of results to load because DataMeter can store up to 4 experiments data.

You do NOT need to press DataMeter buttons - it will link automatically.

LOAD

SET 1

SET 2

SET 3

SET 4

serial

socket

2 Sending Data direct to the computer with comms software

If you do not have datalogging software or if you just want to transfer the raw

data into a spreadsheet etc you may be able to receive data with a

communications or 'works' program. Eg:

IBM PC compatible

Windows Terminal, Microsoft Works

Apple Macintosh

Apple Terminal, ClarisWorks, MS Works,

Acorn Archimedes

ArcComm 2, Hearsay

BBC Master

Built-in terminal program

Psion/Acorn Pkt Bk

Serial/A-Link software (built into link)

The comms software should be set to 9600 Baud, 8 bit, no parity, 1 stop bit, RTS/CTS

handshaking. Then select 'Send Data File' from the DataMeter menu & choose

CSV (comma separated value) or TAB (tab sep. value) for spreadsheets, or SID for

datalogging software. The last data set will be sent. For details see README on

system disc.

•Printing data direct to a printer

You can print a table of ASCII text data direct to a serial printer using 'Send Data

File'. The printer should be set to same settings as above.

LogIT link

cable

LogIT DataMeter

Computer link on

LogIT ❏❏

DataMeter 1000