JR M50 User manual

J R T E C H N O L O G Y
L I M I T E D
M50 Moisture Monitor
Handset User Guide
(Radome Disp ay)
Version 1.2
2017-02-12
JRTD0866

J R T E C H N O L O G Y
L I M I T E D
Table of Contents
1 Introduction................................................................................................................ 3
1.1 Handset Features.................................................................................................4
1.2 Packing List.......................................................................................................... 4
1.3 Setting up the Handset and Probe.......................................................................5
1.4 Rep acing The Batteries.......................................................................................5
2 Handset Contro s........................................................................................................ 6
2.1 Screen Indicators.................................................................................................6
2.1.1 Indicator A – Battery Leve Indicator.............................................................6
2.1.2 Indicator B – Condition Summary.................................................................7
2.1.3 Indicator C – Number of Data Log Points Avai ab e.......................................7
2.1.4 Indicator D – Auto Switch Off Timer..............................................................7
2.1.5 Indicator E – Density Setting........................................................................7
2.1.6 Indicator F – Bar Graph.................................................................................7
2.1.7 Indicator G – Error Status..............................................................................8
2.2 Keypad Contro s................................................................................................... 9
2.2.1 Button 1 – Power key.................................................................................... 9
2.2.2 Button 2 – Right Arrow Key...........................................................................9
2.2.3 Button 3 – Down Arrow Key..........................................................................9
2.2.4 Button 4 – Menu Key...................................................................................10
2.2.5 Button 5 – Left Arrow Key...........................................................................11
2.2.6 Button 6 – Up Arrow Key.............................................................................11
2.2.7 Button 7 – Unused Key...............................................................................11
3 Operating The Handset.............................................................................................12
3.1 Switching the Handset On, and Auto Switch-Off................................................12
3.1.1 Auto Switch-Off........................................................................................... 12
3.2 Using Presets to Configure the Materia Density................................................13
3.3 Logging Data Points...........................................................................................13
3.4 Setting the LCD Back ight Intensity...................................................................14
3.5 Setting the Buzzer Contro s...............................................................................15
3.6 Configuring Key C icks.......................................................................................18
3.7 Viewing the System Version..............................................................................18
4 Configuring the Handset From a Computer..............................................................19
4.1 Insta ing the Software.......................................................................................19
4.1.1 Insta ing USB Device Drivers in MS Windows.............................................19
4.2 Running the Software........................................................................................ 20
4.2.1 Configuring Presets....................................................................................21
4.2.1.1 Editing Presets.....................................................................................22
4.2.2 Managing Logged Data...............................................................................23
4.2.3 System Configuration.................................................................................24
5 Error Messages......................................................................................................... 25
6 Revisions.................................................................................................................. 26
Page 2 of 26

J R T E C H N O L O G Y
L I M I T E D
1 Introduction
The M50 is a modu ar moisture measurement system, designed for use in
environments ranging from hand-he d measurements to industria monitoring and
contro . It can be used to measure the moisture content in any non-conducting
materia .
The M50 Handset is one component in the M50 system. It is a battery-powered unit
that a ows the M50 probe to be used in portab e app ications. The handset is shown
be ow, connected an M50-P-A probe.
Two versions of Handset user interface are avai ab e. This document describes
Handset part number M50-PHP-R, as shown in the figure be ow, which disp ays a
Go/No-go indication designed for testing radomes. The a ternative user interface
shows the moisture content as a percentage of the materia 's dry weight.
Page 3 of 26
Figure 1: M50 handset and probe.

J R T E C H N O L O G Y
L I M I T E D
1.1 Handset Features
The handset's firmware can be customised for different app ications, but this unit's
primary features inc ude:
•Moisture eve disp ayed in a graphica format, divided into 'good', 'poor' and
'fai ' categories.
•Three preset density va ues are programmed into the handset (sandwich, foam
and so id), for quick se ection by the user when working with different
composite materia s.
•Data ogging function to store readings in the handset for down oad to a PC.
•USB interface to a ow handset configuration from a computer, down oad of og
data, and recharging unit's batteries.
•Rechargeab e batteries giving up to 20 hours continuous usage from a fu
charge.
•Batteries can be recharged by p ugging the handset into a USB interface or a
mains-powered USB charger.
•The unit is designed to have a IP65 ingress protection rating1.
1.2 Packing List
The fo owing items are shipped with the standard M50 handset system:
•Handset (fitted with rechargeab e batteries).
•Docking station for recharging the batteries and communicating with a PC.
•M50 probe, fitted with cab e and hand e for connection to handset.
•Mains powered USB charger.
•USB cab e to connect the docking station to the mains charger or a computer.
•Software insta ation disk for PC software to configure the handset.
•Protective rubber boot for handset (optiona item).
•Carry case for handset (optiona item).
1 Design goa – not yet forma y tested.
Page 4 of 26

J R T E C H N O L O G Y
L I M I T E D
1.3 Setting up the Handset and Probe
First connect the probe to the handset. The connector on the probe's cab e fits to the
screw connector on the top of the handset. It is keyed and wi on y fit one way. Screw
the connector in unti it is finger-tight. Do not use any too s to tighten the connector.
To set up the docking station for battery charging, connect the USB socket on the rear
of the docking station either to a USB mains charger or to a computer's USB port.
Then the batteries can be charged simp y by p acing the handset in its docking station,
The batteries may on y be partia y charged when the unit ships, and cou d take up to
ten hours to fu y charge.
1.4 Rep acing The Batteries
The unit ships with 3 NiMH 'AA' rechargeab e batteries with nomina capacity of
2850mAh. If the batteries need to be rep aced in the future (they are accessib e from
the underside of the handset), it is important to rep ace them with equiva ent NiMH
batteries.
The handset is configured to charge the batteries when docked in the docking station,
with a charging current appropriate to these high-capacity NiMH ce s. It is important
that the correct rechargeab e ce s be fitted. Under no circumstances fit anything other
than NiMH batteries.
Only fit the correct high capacity NiMH batteries.
Page 5 of 26

J R T E C H N O L O G Y
L I M I T E D
2 Handset Controls
The figure be ow shows the handset's screen indicators and keypad contro s.
2.1 Screen Indicators
The indicators abe ed A to F in the above figure have the fo owing meanings.
2.1.1 Indicator A – Battery Leve Indicator
The battery indication shows the charge remaining in the batteries. Norma y the
disp ay is green, but when the charge drops be ow about 25% the co our changes to
orange.
The unit is recharged by p acing it in the docking station, which can be p ugged into a
mains-powered USB charger or into a computer's USB port. In either case the unit wi
draw power over the USB connection to charge the batteries. When the battery is
charging the indicator shows an animated disp ay in a oop where the battery eve
rises from zero to fu y charged.
Page 6 of 26
Figure 2: Handset's Indications and Control Keys

J R T E C H N O L O G Y
L I M I T E D
When the handset is connected to an externa power source it wi beep to confirm that
it has externa power. If the unit is switched off when it is docked then it wi turn on
the LCD at ow intensity to provide an indication of the battery charging status. If the
unit is removed from the dock it wi beep again and switch off.
2.1.2 Indicator B – Condition Summary
The handset shows a summary of the condition of the materia current y being sensed
by the probe. If the moisture content is be ow 2.9% it is f agged as 'good', between
2.9% and 5.0% it is f agged as 'poor', and above 5.0% it is 'fai '.
2.1.3 Indicator C – Number of Data Log Points Avai ab e
The handset a ows up to 64 data points to be ogged in its memory for down oading to
a computer over the USB interface. This item shows the number of data og points
that remain unused in the handset.
2.1.4 Indicator D – Auto Switch Off Timer
The handset provides a feature to automatica y switch off the handset after a period
of inactivity. When this feature is enab ed a T symbo is shown on the screen. When
the feature is disab ed (the factory defau t) there is no symbo present in this ocation.
2.1.5 Indicator E – Density Setting
The handset contains three preset configurations of materia density, and this
indicator disp ays which preset is in use. The factory defau t provides settings for
sandwich, foam and so id composite materia s.
2.1.6 Indicator F – Bar Graph
This provides a graphica indication of the moisture content of the samp e under test.
The numbers and sca e underneath the bar graph show the moisture reading as the
percent moisture content by weight of the samp e under test. It is ca cu ated using
the fo owing formu a:
Percent Moisture =Weight moist −Weight Dry
Weight Dry
×100
The moisture reading depends on the dry weight of the materia , which is configured in
the handset by se ecting one of the presets (Section 3.2 describes how to do this).
Page 7 of 26

J R T E C H N O L O G Y
L I M I T E D
2.1.7 Indicator G – Error Status
In norma operation the top eft of the screen is b ank. In the event of an error
condition this space is used to report the prob em. In Figure 2 above the warning
means that the handset cannot communication with the probe (e.g. because it is
disconnected).
Page 8 of 26

J R T E C H N O L O G Y
L I M I T E D
2.2 Keypad Contro s
The buttons on the keypad abe ed 1 to 7 in the above figure have the fo owing
functions.
2.2.1 Button 1 – Power key
This key is used to switch the handset on and off. Press this key once to switch on the
handset. At start-up a sp ash screen is disp ayed showing the unit's part number and
seria number, whi e a power-on se f-test is performed. Once the start-up tests have
comp eted, this key can be pressed again to switch the unit off.
The unit supports an automatic power-down faci ity, set via a configuration menu (see
Section 3.1). This is provided to minimise battery usage in the event the unit is
accidenta y eft switched on. The factory defau t is for the unit to remain switched on
indefinite y.
2.2.2 Button 2 – Right Arrow Key
This key is used to scro through the preset density settings. Each time the key is
pressed the next avai ab e preset is se ected. When the handset reaches the end of
the ist of presets it wi then return to the first preset in the ist.
When navigating menus this key is used to activate the next sub-menu in the menu
hierarchy.
2.2.3 Button 3 – Down Arrow Key
In the norma disp ay mode this key is used for one-touch data ogging. Each time the
key is pressed the current moisture measurement and handset configuration is ogged
in memory. Up to 64 such data points can be recorded in the handset. This data can
be down oaded to a PC and stored to disk, and the og is a so c eared under contro of
the PC interface. See Section 4.2.2 for detai s.
When navigating menus this key is used to scro through the menu items in the active
menu. When the ast item in a menu is active, pressing this key again scro s around to
the first item in the menu.
Page 9 of 26

J R T E C H N O L O G Y
L I M I T E D
2.2.4 Button 4 – Menu Key
This key is used to enter and exit the system configuration menu. When the key is
pressed the screen is redrawn showing just the battery eve indication and the top-
eve menus, as shown be ow. In the diagram the top- eve menu is active. The bar
graph to the right is the sub-menu for the acklight menu item, and is current y
inactive (it is greyed out).
The four arrow keys on the keypad can then be used to navigate through the menus
and configure the handset. Pressing the Menu key at any time when the menus are
disp ayed wi return to the main disp ay screen.
The top- eve menu has sub-menus to contro or view the fo owing:
•LCD back ight brightness
•Automatic switch-off of the instrument
•Settings for the handset key-c icks and buzzer
•System version information
The high ighted menu item in the active menu can be changed using the Up- rrow
and Down- rrow keys. The Right- rrow key is used to activate the sub-menu of the
high ighted item in the active menu. The Left- rrow key is used to deactivate the
current menu and return to its parent menu.
Page 10 of 26
Figure 3: Top-level Menu

J R T E C H N O L O G Y
L I M I T E D
2.2.5 Button 5 – Left Arrow Key
This key is used to scro through the preset density settings. Each time the key is
pressed the previous preset is se ected. When the handset reaches the beginning of
the ist of presets it wi then scro around to the ast preset in the ist.
When navigating menus this key is used to deactivate the current menu and
reactivate its parent menu.
2.2.6 Button 6 – Up Arrow Key
When navigating menus this key is used to scro through the menu items in the active
menu. When the first item in a menu is active, pressing this key again scro s around to
the ast item in the menu.
2.2.7 Button 7 – Unused Key
This key is unused in this version of the handset GUI.
Page 11 of 26

J R T E C H N O L O G Y
L I M I T E D
3 Operating The Handset
The fo owing sections describe how to use the handset.
3.1 Switching the Handset On, and Auto Switch-Off
To switch on the handset, press the power key once. The unit wi switch on and run its
se f-tests before showing the main disp ay screen. The unit is switched off by pressing
the power key again.
3.1.1 Auto Switch-Off
To configure the auto switch-off timer, press the Menu key to enter the system
configuration menu. Then use the Down- rrow key to navigate to the Auto-off menu
item. This wi bring up a sub-menu (deactivated initia y) with severa options for the
auto-off time, as shown be ow.
The factory defau t setting of the is timer is Never, so that is the item high ighted in
the sub-menu (a beit greyed out because the menu is inactive). To activate the sub-
menu, press the Right- rrow key once. The top- eve menu wi be deactivated and
the sub-menu activated, as shown be ow.
Page 12 of 26
Figure 4: Auto-off Menu Item Selected.
Figure 5: Auto-off Sub-Menu Activated.

J R T E C H N O L O G Y
L I M I T E D
Once the sub menu is activated, use the Up- rrow and Down- rrow keys to se ect
the auto-off feature as desired. The options are:
1. Never switch the unit off automatica y (the defau t)
2. Switch off after 15 minutes of inactivity
3. Switch off after 30 minutes of inactivity
4. Switch off after 45 minutes of inactivity
Inactivity is defined as the situation where no key has been pressed and the readout
from the handset has not changed by more than 0.1% moisture reading. If a key is
pressed, or if the moisture reading changes by more than this thresho d, then the
auto-off timer is reset.
After the desired auto-off setting has been se ected, press the Menu key to return to
the main disp ay screen, or press the Left- rrow key to re-activate the top- eve
menu in order to modify other features of the handset configuration.
3.2 Using Presets to Configure the Materia Density
This section describes how to se ect a preset to quick y switch between different
materia density settings. The handset has three presets which can be se ected by the
user. The factory defau t contains settings for sandwich, foam and so id composite
materia s.
To se ect a preset, press the Right- rrow or Left- rrow key. The Right- rrow key
switches to the next preset in the ist. The probe is immediate y configured to use the
density of the preset chosen. If the Right- rrow key is pressed when the current
preset is at the end of the ist then it automatica y ro s over to the first preset.
Simi ar y, the Left- rrow key can be used to switch to the previous preset in the ist.
If the current preset is the first in the ist then it scro s round to the ast in the ist.
The current y se ected preset is shown on the bottom eft of the disp ay (disp ay
indication E in Figure 2).
3.3 Logging Data Points
The handset a ows up to 64 data points to be ogged in its memory for down oading to
a computer over the USB interface. Each data point contains the fo owing information:
•a time-stamp
•the preset in use when the data point was ogged
•the probe's density setting
•the moisture eve as reported on the handset.
Page 13 of 26

J R T E C H N O L O G Y
L I M I T E D
The time-stamp is taken from the Handset's rea -time c ock. This c ock is configured
via the USB computer interface (see Section 4.2.3 for detai s on how to set the rea -
time c ock). The moisture eve stored in the ogged data point is that shown on the
disp ay when the og was taken.
The number of og points avai ab e for use are shown on the bottom right of the
disp ay next to the 'L' symbo – disp ay indication C in Figure 2. Initia y this wi read
64, since no data points are stored in the handset when it ships from the factory.
To store a data point, just press the Down- rrow key once. This stores the current
moisture measurement, and the number of avai ab e data points wi decrement to
show that a point has been taken.
The data og points cannot be c eared or viewed from the handset itse f. This is on y
possib e via the USB computer interface (see section 4.2.2 for detai s of how to read
and c ear the data og).
3.4 Setting the LCD Back ight Intensity
From the main disp ay screen of the handset, press the Menu key once to enter into
the system configuration menu. The acklight menu item wi be high ighted as it is
the first item in the menu, and to the right its sub-menu (a bar graph) is disp ayed
showing the LCD back ight intensity, on a percentage sca e of 0 to 100%. This is
shown be ow.
This sub-menu is is not active when the main menu is first disp ayed. Activate the bar
graph by pressing the Right- rrow key on the handset. The acklight menu item in
the top- eve menu wi be greyed out, and the bar graph's disp ay wi be high ighted,
as shown be ow.
Page 14 of 26
Figure 6: Top-Level Menu with LCD acklight Item Highlighted.

J R T E C H N O L O G Y
L I M I T E D
Once the bar graph is activated the Up- rrow and Down- rrow keys can be used to
increase and decrease the back ight intensity respective y. To make arge changes,
ho d the key down and after a brief de ay the key action wi auto-repeat to avoid
having to press the key mu tip e times.
The changes made to the LCD brightness are actioned immediate y,. So if the Down
- rrow key is he d pressed the brightness wi continua y reduce unti the key is
re eased.
Once the desired brightness has been chosen, just press the Menu key again to
dismiss the menus and return to the main disp ay. A ternative y, press the Left- rrow
key to deactivate the brightness bar graph and reactivate the top eve menu., Once
the top- eve menu has been reactivated, the Up- rrow and Down- rrow keys can
be used to navigate to different items to modify other parts of the configuration.
3.5 Setting the Buzzer Contro s
The Handset can be configured to output a tone with a pitch that increases with the
moisture content being measured. This gives an audio indication of the moisture eve
in the materia under test.
To configure the audio output, press the Menu key to enter the system configuration
menu. Then use the Down- rrow key to navigate to the uzzer menu item. This wi
bring up a sub-menu (deactivated initia y), as shown be ow.
Page 15 of 26
Figure 7: acklight Sub-Menu Activated.

J R T E C H N O L O G Y
L I M I T E D
Then press the Right- rrow key once to activate the sub-menu, after which the
Handset wi appear as shown be ow.
To switch the buzzer on or off, press the Right- rrow key once more to activate the
Contro sub-menu. The owest eve menu wi then be activated, as shown be ow.
Then use the Up- rrow and Down- rrow keys to enab e or disab e the buzzer.
Page 16 of 26
Figure 8: uzzer Menu.
Figure 10: uzzer Control sub-menu.
Figure 9: uzzer menu, when activated.

J R T E C H N O L O G Y
L I M I T E D
The oudness of the buzzer can be set by entering the buzzer's Volume sub-menu.
From the menu state shown in Figure 9, press the Down- rrow key to se ect the
Volume sub-menu and then press the Right- rrow key to activate it. The screen wi
appear as shown be ow.
Once the bar graph is activated the Up- rrow and Down- rrow keys can be used to
increase or decrease the buzzer's vo ume. These keys can be he d down if required to
modify the setting without having to press the key mu tip e times. This change to the
buzzer's oudness is actioned immediate y, there is no confirmation dia ogue required
before the change is made (but note that the buzzer is a ways disab ed whi e using the
menus).
Page 17 of 26
Figure 11: uzzer's Volume control menu.

J R T E C H N O L O G Y
L I M I T E D
3.6 Configuring Key C icks
The Handset can be configured to generate an audib e c ick each time a button is
pressed. To configure this, press the Menu key to enter the system configuration
menu. Then use the Down- rrow key to navigate to the Key clicks menu item. This
wi bring up a sub-menu (deactivated initia y), as shown be ow.
Activate the sub-menu by pressing the Right- rrow key on the handset. Then use
the Up- rrow and Down- rrow keys to choose whether key c icks are enab ed or
disab ed.
3.7 Viewing the System Version
The ast item in the top- eve menu reports the software version insta ed in the
Handset. To view this information, press the Menu key once from the main disp ay
screen of the handset to enter into the system configuration menu. Then navigate to
the System sub-menu. This menu item simp y disp ays version numbers – it is not
possib e to modify anything.
JRTD0866, Version 1.2, 2017-02-12 Copyright © 2017 JR Techno ogy Limited Page 18 of 26
Figure 13: System Menu.
Figure 12: Key clicks Menu

J R T E C H N O L O G Y
L I M I T E D
4 Configuring the Handset From a Computer
The Handset can be connected to a computer via a USB interface, and this provides a
data connection that is used to configure the handset and manage ogged data.
4.1 Insta ing the Software
The software is insta ed by doub e-c icking on the fi e ca ed M50HandsetConfig.msi.
This insta s the software onto the computer, and it can be run either via the Windows
Start menu or by doub e-c icking on the shortcut p aced onto the desktop.
4.1.1 Insta ing USB Device Drivers in MS Windows
When the handset is first p ugged into a PC, the computer shou d find and insta the
USB drivers automatica y if the computer is connected to the Internet. For reference,
the required software is FTDI's "virtua COM port (VCP)" driver for their FT232BL
devices. Drivers are avai ab e for free down oad from their website
http://www.ftdichip.com.
Once the USB driver is insta ed the Handset wi appear to be connected on a
Windows COM port. The way to find out which COM port has been assigned to the
probe is to go to the Contro Pane menu, then Administrative Too s, and open
"Computer Management". C ick on "Device Manager" in the eft-hand pane of the
window that opens, then scro down to "Ports (COM & LPT)" in the right-hand pane.
One of the items in this ist wi say something ike "USB Seria Port (COM3)". In this
examp e the probe wou d be connected on COM3.
Page 19 of 26

J R T E C H N O L O G Y
L I M I T E D
4.2 Running the Software
When the software starts it first asks for the seria port on which the Handset is
connected (see Figure 14). Se ect the Handset's seria port from the drop-down
se ection and press OK. The software wi down oad the Handset's preset configuration
data and og and popu ate the main program window.
There are three tabs on the top of the program's main window, to contro different
aspects of the handset:
This tab shows the Handset's preset configuration data.
The presets can be oaded, saved, and edited.
This tab shows data points ogged in the handset. The og
can be saved to disk and the handset's contents c eared.
This tab shows the Handset and Probe product codes,
seria numbers and version numbers.
Presets
Data Logging
System Configuration
Page 20 of 26
Figure 14: Startup Screen of the PC Software.