pico Technology EL029 User manual

DO045-4
EL029
DrDAQ Reed Switch
User’s Guide

EL029 DrDAQ Reed Switch User Guide Pico Technology
1 DO045-4
1Introduction
This leaflet describes the EL029 Reed Switch and how to use it with
DrDAQ (USB and parallel port versions). The EL029 pack contains:
1 EL029 Reed Switch
1 EL032 3 metre sensor extension cable
1 MI055 magnet
1 instruction leaflet
2Before you begin
Please read through this leaflet before you use your
EL029. You will need to have the relevant Pico
software set up on your computer.
Please read the DrDAQ
manual for information on
PicoScope and PicoLog.
3What the EL029 Reed Switch does
The EL029 Reed Switch is operated by a magnet.
When the magnet is placed next to the EL029, in the position shown, the
Reed Switch closes. It may be used to indicate position or, as an
alternative to a light gate, to give data about motion.
4Installation
The door switch module contains a built-in reed switch which can be
activated using a magnet attached to the door. Alternatively, if it is not
practical to mount the door switch for operation with a magnet, an
external micro-switch can be wired to the screw terminals inside the door
switch module. The door switch module can be attached to a wall either
using adhesive foam, or by removing the cover and using two screws to
attach the unit to the wall. The following template can be used to drill the
fixing holes. To attach an external microswitch:
make a hole in the case
pass the cable through the hole
wrap the cable round the central pillar
attach the wires to connectors marked a for additional security, use a
cable tie to attach the cable to the two holes marked c on the left of
the connector block.
The black bar labelled b is the ideal location to place a magnet to activate
the internal reed switch.
北京海洋兴业科技股份有限公司（证券代码：839145）
www.hyxyyq.com

Pico Technology DD103 DrDAQ Oxygen Sensor User Guide
DO045-4 2
ab
c
5How to connect the EL029 to
DrDAQ
Take care not to force the plugs into the
sockets.
1. Push Plug 1 into Socket 1 until you
hear a click.
2. Push Plug 2 into Ext 1. If Ext 1 is
already in use, push Plug 2 into Ext 2
(or Ext 3 for USB DrDAQ).
Remember to connect DrDAQ
to your
computer. When you have connected
your EL029 it should look like this
(parallel port DrDAQ shown).
6How to use the EL029
1. Start PicoScope*
2. Set channel A to Ext 1 (or Ext 2 or Ext 3** depending on
availability)
3. Set trigger to none
4. Set the time to 10 s/div
5. Move the magnet next to the EL029 and notice that the trace rises
to 100%
6. Move the magnet away from the EL029 and
notice that the trace falls to 0%
*Use PicoScope 5 with the parallel port DrDAQ or
PicoScope 6 with USB DrDAQ.
** USB DrDAQ only.
You can also use the EL029 with PicoLog to collect
data over longer times. Try this arrangement with
the EL029 used to monitor whether a door is open
or closed. Fix the magnet to the door. Line the
EL029 up so that the magnet operates the Reed
Switch when the door is closed.
北京海洋兴业科技股份有限公司（证券代码：839145）
www.hyxyyq.com