Download DrDAQ User's Guide

Introduction
1
Introduction
1.1
Overview
1
DrDAQ is a low-cost data logger from Pico Technology. It is supplied ready to use with
all cables, software and examples. Features include:
Built in sensors for light, sound (level and waveforms) and temperature
Measure pH - just plug in our standard pH electrode
Sockets for external sensors
Use DrDAQ to capture fast signals (for example, sound waveforms)
Digital output for control experiments
Simply plug in to your PC and measure - supplied with both PicoScope
(oscilloscope) and PicoLog (data logging) software
1.2
Safety warning
DrDAQ ground is connected directly to the ground of your computer. As with most
oscilloscopes and data loggers, this is done in order to minimise interference. You
should take care not to connect the ground (screw terminal, outer shell of BNC or
exposed metalwork) of DrDAQ to anything which may be at some voltage other than
ground, as doing so may cause damage to the unit. If in doubt, use a meter to check
that there is no significant AC or DC voltage.
For computers that do not have an earth connection (for example, laptops), it must be
assumed that DrDAQ is not protected by an earth (in the same way a battery
multimeter is not protected by an earth).
The maximum input voltage range of any input is 0 to 5 V. Any voltage in excess of
±30 V may cause permanent damage to the unit.
The unit contains no user serviceable parts: repair or calibration of the unit requires
specialised test equipment and must be performed by Pico Technology Limited, or
their authorised distributors.
© Copyright 2005-7 Pico Technology Limited. All rights reserved.
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