SafeGuard MegaGuard WalkPlus User manual

SG9265080
INSTRUCTION MANUAL

EC CONFORMITY
Unit SG9265080 conform to EC directives EMC - 2004/108/CE the following
harmonized standards are in use EN 60204-1, EN 61000-6-1, EN 61000-6-3.
WARRANTY
Thisunitisguaranteedagainstalldefectsduetofaultymaterialsandworkmanship,
within 12 months from the date of purchase.
A use not conforming to what specified might be dangerous to the safety of the
operator and may damage the instrument.
In such circumstances the manufacturer is relieved of anyliability and the warranty
itself
REPAIR
Repairs have not been attempted by anyone other than authorized repair
distributors.
Do not try to repair the unit by yourself.
Protecting the environment
Separate collection.This product must not be disposed of with normal household waste.
Should you find one day that your product needs replacement,or if it is of no further use to
you,do not dispose of it with household waste. Make this product available for separate
collection.
Separate collection of used products and packaging allows materials to be recycled and
used again.
Re-use of recycled materials helps prevent environmental pollution and
reduces the demand for raw materials.
Localregulationsmayprovideforseparate collectionofelectricalproductsfrom
the household,at municipal waste sites or by the retailer when you purchase a
new product.

TECHNICAL FEATURES
The MegaGuard WalkPlus is a portable measuring system that allows analysis
of charge levels accumulated on the human body according to IEC 61340-4-5
standard.
It's fully portable and doesn't require a PC for data acquisition because all data are
measured and logged in the internal memory.
The operator can perform all necessary operations without any collaborator, and
while he is walking the instrument is attached only with a single cable to a fixed
position for the reference to the ground.
ThegraphsofthetestscanbedisplayedonthegraphicLCDforaquickevaluation.
Then they can be easily exported and analyzed on a PC for a professional
documentation.
A program to manage the tests recorded in the instrument is included in the
MegaGuard WalkPlus.
Instrument
Range: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±1050V
Resolution: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Volt
Accuracy: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5% o ±5V
Input resistance: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1014 Ω
Humidity: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 to95%RH
. . . . . . . . . . . . . . . . . . . . . . . . . (accuracy: ±2%RH to 25°C, 10%RH~90%RH)
Temperature: . . . . . . . . . . . . . . . . . . . . . . . . -20°Cto+60°C(accuracy:±1°C)
Display: . . . . . . . . . . . . . . . . . . . . . . . . . . . graphic LCD 128 x 64 pixel, 68x51mm
Power supply: . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 alcaline batteries, LR6 1, 5V
Dimensions: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243x130x60mm (instrument)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ø35x130mm (probe)
Weight: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 650g (instrument) - 250g (probe)
LOW BATTERY = Blinking
Auto Shut-off after 10 minutes of inoperativity
Datalogger
In the internal memory of the instrument can be logged till to 10 graphs.
Sample rate: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200Hz
Maxtotalgraphsduration:. . . . . . . . . . . . . . . . . . . . . . . . . . . 2minutesand30sec
Interface: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .USB

ORDERING CODES
SG9265080: MegaGuard WalkPlus Meter with batteries and case
SG9265082: Instrument recalibration, ISO9000 Traceable Certificate is supplied
KEYBOARD
<SETTING> To enter the setting mode
<LEFT> To move to the previous menu
<CURSOR> To advance the cursor
<RIGHT> To move to the next menu
<EXIT> To turn on / off the instrument and to exit from setting mode and
from menu operation.
<START/STOP> To start / stop the measurement.
To increase the value at the cursor location when you are in
setting mode

FRONT PANEL
GND
Probe input / PC input
GND
BATTERY REPLACEMENT
•Open the battery cover .
•Replace the battery (only alcaline type).
•Close the battery cover.
OPERATIVE INSTRUCTIONS
ON / OFF
MENU
In order to light-up MegaGuard WalkPlus press .
To shut-off MegaGuard WalkPlus keep pressed the same key for 1 second.
The instrument has 6 menu:
- MONITOR - ZERO - NEW - VIEW - CLEAR - COM -
Press <LEFT> to move to the previous menu
Press <RIGHT> to move to the next menu

MEASUREMENT
First of all connect the ground to one of the two GND input.
Then connect the probe to the instrument
GROUNDING POINTS
1) GND INPUT
2) GND INPUT
3) GND TOUCHPLATE (internally connected to the two GND inputs)
The standard IEC-61340-4-5 says that the operator shall take hold the probe and
before to start the walking test shall momentarily touch an earth bonding point.
For this reason in the back of the instrument there is a metal touchplate connected
to the two GND inputs that the operator can touch whenever he needs.

PRELIMINARY OPERATIONS
1 - Connect instrument to GND
2 - Finger on touchplate
3 - Hold Sensor with hand
4 - in the MONITOR MENU Verify ZERO on display
(with WARM-UP ALARM still active you could have values starting from
-30V, offset values between -0005V and +0005V are to be considered in tolerance )
MONITOR MODE
In this menu if the operator press <START/STOP> the
instrument shows the electric potential present on the
probe.
The electric potential is mediated every second.
A beep every second indicates that the instrument is
measuring. The beep was made to avoid missing the
instrument with measuring active, causing battery
consumption.
To deactivate the measuring press <START/STOP>
again or <EXIT>.
MONITOR
(Datalogger OFF)
DATALOGGER MODE
If there is free memory space the instrument can log the
graph of a new walking test.
In this menu if the operator press <START/STOP> the
instrument shows a pop-up window with a short countdown
(3 seconds) before to execute the test.
In the pop-up window is indicated the maximum duration of
the walking test.
To stop the data acquisition of the graph press
<START/STOP>.
DATALOGGER
Graph n.3
+Peak=26V
-Peak=-6
Press <LEFT> or <RIGHT> to scroll the graph for a quick evaluation.
Press<START/STOP> again:anewpop-upwindowasksyoutosaveordiscardthe graph.

Press <START/STOP> to save or <CURSOR> and <START/STOP> to discard.
IMPORTANTE: Warm-up stabilization time.
The electronic components of the electrostatic sensor require a warm-up time of
about 5 minutes to obtain accurate and stable measurements.
A warningsymbol lamponthedisplay and an acoustic signaladvicethat 5 minutes
have expired.
This symbol indicate
that warm-up is active
ZERO
During the warm-up it's possible to measure anyway, keeping in mind a little
inaccuracy.
Ifthe unit does not indicate 0V while the probe is connected to ground and WARM-
UP ALARM is no longer active enter the ZERO procedure by pressing 2 times
<START/STOP> at the screenshot of this MENU.
VIEW
CLEAR
COM
If there are graphs logged in the internal memory is possible to see them.
Press <START/STOP>: a pop-up window asks you which graph to view.
Move the cursor pressing <CURSOR> and select the graph pressing
<START/STOP>
Press <LEFT> or <RIGHT> to scroll the graph.
Press <START/STOP> again to exit.
If there are graphs logged in the internal memory is possible to delete them.
Press<START/STOP>:apop-upwindowaskyou whatyouwanttodelete(it'sonly
possible to delete the last graph or all the graphs memorized)
Move the cursor pressing <CURSOR> and select the command by pressing
<START/STOP>
In this menu the instrument can export data to a PC

SETTINGS
To enter in SETTING mode keep pressed the <SETTING> key for 1 second.
There are 4 menus available:
1) V RANGE
2) CLOCK
3) DISPLAY
4) °C °F
Press <LEFT> to move to the previous menu
Press <RIGHT> to move to the next menu
Press <EXIT> to exit from setting mode.
V RANGE
The range for new graphs and view graphs can be selected here.
Pressthebutton<CURSOR>toadvancethecursorandpress<START/STOP>to
increase the value.
AUTO range is only available in view mode.
CLOCK
Menu for setting the date and time
Pressthebutton<CURSOR>toadvancethecursorandpress<START/STOP>to
increase the value.
DISPLAY
Menu for setting the contrast of the LCD display (0 to 9)
The default contrast is 5.
Press the button <START / STOP> to increase the value of contrast.
° C / ° F
Menu for setting the unit of temperature measurement:
- ° C degrees Celsius
- ° F degrees Fahrenheit
Press the button <START /STOP> to switch from one format to another.

INTERFACING TO PC
SOFTWARE INSTALLATION
The WTManager software doesn't need any installation, simply copy the file
"WTManager.exe" in a directory of your PC and run it to be operative.
SETTING THE CONNECTION
1) Connect the MegaGuard WalkPlus to the PC (via USB port)
2) Enable the MegaGuard WalkPlus port (enter in "COM" menu)
3) Run WTManager, pull down the "Datalogger" menu and click on "COM port
select". Select the right port from the availables (COM1, COM2, COM3 etc..).
The status of the connection between the MegaGuard WalkPlus and the PC is
clearly indicated:
MegaGuard WalkPlus is connected MegaGuard is not connected

DATA DOWNLOAD
Pulldownthe"Datalogger"menuandclickon"ImportGraph"fordownloadingand
displaying each of the collected graph.
WALKING TEST with NOT-ESD footwears
WALKING TEST with ESD footwears
The five highest peaks (P1-P5) and the five highest valleys (T1-T5) are indicated
with their arithmetic means.
Then the graph can be saved or printed for a professional documentation.