SENSY WIRELESS-T24-HA User manual

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WIRELESS-T24-HA
Advanced Handheld Display
User Manual
1. OVERVIEW ................................................................................................................................................................................................... 2
1.1. Order Codes................................................................................................................................................................................... 2
1.2. Connections ................................................................................................................................................................................... 2
1.2.1. Power.................................................................................................................................................................................... 2
1.3. Operation........................................................................................................................................................................................ 3
1.3.1. Item Mode............................................................................................................................................................................. 3
1.4.1. All Modes ...................................................................................................................................................................................... 6
2. CONFIGURATION .................................................................................................................................................................................. 7
2.1. Mode and Communications............................................................................................................................................................ 7
2.2. Prompts .......................................................................................................................................................................................... 9
2.3. Zero Settings ................................................................................................................................................................................ 10
2.4. Zero Settings Advanced ............................................................................................................................................................... 12
2.5. Display Format ............................................................................................................................................................................. 13
2.6. Display Format Advanced Settings .............................................................................................................................................. 15
2.7. Advanced Settings ....................................................................................................................................................................... 16
3. ANTENNAS........................................................................................................................................................................................... 18
4. SPECIFICATION................................................................................................................................................................................... 18

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1. OVERVIEW
The WIRELESS-T24-HA is an advanced handheld display. This allows wireless remote viewing of multiple inputs
such as strain gauge or voltage etc. using 2.4GHz radio.
The WIRELESS-T24-HA also performs the function of optionally waking the remote modules when it is
turned on and sending them to deep sleep mode when it is turned off.
The handheld can operate in two modes. The operation of the buttons and the automatic sleep/wake functions
are dependent on these modes.
Result Mode
This is the default mode in which multiple transmitter modules are used to create a result which is displayed.
Currently the WIRELESS-T24-HA only provides a sum of the remote modules but this function may be added to
in future versions. Although the handheld usually shows the result (sum) there is an option of viewing the discrete
values that make up the result.
Item Mode
In this mode each transmitter module is treated as a separate reading and the handheld is used to cycle through
the available items and the value of each can be viewed.
1.1. Order Codes
WIRELESS-T24-HA
Handheld display for use with multiple transmitters and with advanced functionality.
1.2. Connections
1.2.1. Power
The handheld module is powered by two alkaline AA batteries.
For battery information please refer to Appendix D –Battery Selection
Due to the higher voltage requirements of this module NiMh and NiCad batteries are not recommended.

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1.3. Operation
The handheld can operate in two modes and the button operation is dependent on these modes.
1.3.1. Item Mode
Up to 12 individual modules can be connected to and the user can step through each one in sequence.
If DoSleepWake is set then the handheld will wake transmitters when turned on and send them all to sleep again
when turned off. When the handheld wakes modules this is achieved through the transmission of a broadcast wake.
i.e. all modules on the same channel and with the same group key will wake.
1.3.1.1. Keys
Sleep key - Send the currently selected module to sleep.
Wake Key - Will attempt to wake the currently selected module.
T Tare Key - This will toggle between gross and zeroed net mode. i.e. If the display shows gross then pressing
the key will zero the display. Pressing the key when in net mode will return the display to gross mode. The
Gross and Net modes are indicated as described below. Gross and Net are retained through power off.
Next Key - Step to the next module. A brief prompt will be displayed before the value is shown.
i.e. ‘Input 1’, ‘Input 2’ etc. Also see Prompts
F1 If motion detection is activated then the reading must be steady to enable this key. Pressing this key
with an unstable reading will do nothing.
Function Key - This transmits a Data Provider packet marked with a Data Tag held in F1DataTag
and can also contain data as defined by F1Data. This can be used to trigger external actions such as
a printout.
Power Key - Press and hold the power key until the display shows BUSY then release the key. Can also
be used, by giving a quick press, to reset the Auto-Sleep delay.

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Up to 12 individual modules can be summed and the result displayed.
If DoSleepWake is set then the handheld will wake all modules when turned on and send them to sleep again
when turned off. When the handheld wakes modules this is achieved through the transmission of a broadcast
wake. i.e. all modules on the same channel and with the same group key will wake.
In this mode there is an option of retrieving a system zero value from an external source. This is activated by
supplying the Data Tag to the ExtZeroDataTag parameter. When activated the value supplied by the Data
Provider packet marked with this tag will be used as the system zero and will be subtracted from the sum of all
contributing inputs.
Usually in this mode only the result is displayed (sum) but holding the Next key for a configurable number of
seconds will activate the ability to step through each contributing input using the Next key.
1.3.1.2. Keys when viewing Result
Sleep Key - No effect.
T
F1
Wake Key - Will attempt to wake any sleeping modules.
This uses a broadcast wake so any modules on the same channel with the same group key will
wake.
Tare Key - Toggle between displaying gross sum or tared sum.
Next Key - No effect unless held for a number of seconds to activate individual item view.
This can be disabled. See Allow Next Key
Newer versions also allow customised prompt messages to replace the default ‘Input 1’, ‘Input
2’ etc. See Prompts
Function Key - If motion detection is activated then the reading must be steady to enable
this key. Pressing this key with an unstable reading will do nothing.
This transmits a Data Provider packet marked with a Data Tag held in F1 DataTag and can
also contain data as defined by F1 Data ( See Mode and Communications later ). This can
be used to trigger external actions such as a printout or a relay operation. This would require
suitable relay or printer WIRELESS-T24 modules.
Power Key - Toggles between on and off. Hold for 2 seconds to activate.

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1.3.1.3. Keys when viewing an individual item
Sleep Key - No effect.
Wake Key - Will attempt to wake the currently selected module.
TTare Key - If sum was currently tared then this key will toggle between displaying gross or tared
value of current module. If sum view was displaying gross then this key has no effect.
If an external system zero is used then only gross values actually supplied to the
handheld can be displayed.
Next Key - Selects next input item to view.
F1 Function Key - If motion detection ( See settings in Display Format later ) is activated then the reading
must be steady to enable this key. Pressing this key with an unstable reading will do nothing.
This transmits a Data Provider packet marked with a Data Tag held in
F1DataTag and can also contain data as defined by F1Data. This can be used
to trigger external actions such as a printout.
Power Key - Toggles between on and off. Hold for 2 seconds to activate.

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1.4.1. All Modes
1.4.1.1. Indicators
GThe display is showing Gross weight.
NET The display is showing Net weight.
SIG LOW The radio signal from the transmitter module is low. The module is still
functioning but the limit of the range may be near. Communications may start
to deteriorate when this indicator is visible. Until ------ is displayed the
communications is still OK and the display can be relied on for accuracy.
Even with a degraded signal the display value will always be
correct.
BATT LOW
The batteries in the handheld are low and need to be replaced.
REMOTE ERROR
The transmitter module has an error that the handheld does not recognise.
REMOTE BATT LOW
The battery or supply to the transmitter module is low.
Errors
Displayed on handheld LCD.
Error 1
The transmitter module has a strain gauge input and is in shunt calibration
mode. An external module has placed the transmitter module in Shunt
Calibration mode so rather than display a misleading reading this error is
displayed instead.
Modules such as the WIRELESS-T24-SA support this error type.
Error 2
Input integrity error. The transmitter module has found a problem with the
input. There may be open or short circuits. Rather than display a misleading
reading this error is displayed instead.
Only certain transmitter modules support this error such as the WIRELESS-T24-
SA.
Overload
The overload limit set by the user has been exceeded.
{Display Flashing}
The motion detection has been enabled and the reading is deemed in motion
or unstable.
Other Functions
System Zero
If enabled, holding the Tare key for a number of seconds will perform a system
zero.
Pairing
See Field Transmitter Module Replacement later

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2. CONFIGURATION
The WIRELESS-T24 Toolkit provides a means of simple configuration of the handheld module along with useful
tools to aid integration.
Launch the WIRELESS-T24 Toolkit software application and pair to this module to enable the connection to the
Toolkit to allow configuration to take place. See Common Toolkit Pages - Home
2.1. Mode and Communications
This page allows you to set the operational mode of the module and configure which external transmitter
modules the handheld will connect to.
Items you can change:
Operational Select in which mode the handheld will operate.
Mode
Result Mode
Up to 12 individual transmitter modules can be summed and displayed. Optionally the
operator can view the individual module values (See Allow Next Key).
Item Mode
Up to 12 individual modules can be displayed and the user can step through each one in
sequence.

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Allow Next Key Only used in Result Mode. Usually in Result mode only the result (sum) of the individual
modules is shown. By entering a non-zero value here this will define the number of seconds
that the Next key needs to be held down to enable individual item values to be viewed.
Once available the Next key will cycle between all the individual values and the result. This
will remain available until the handheld is powered off.
Each time the Next key is pressed the display will show a brief message indicating what will
be displayed; Input 1, Input 2, Result etc. From firmware version 1.2 onwards the handheld
allow customised prompt messages. See Prompts
F1 Data Tag The F1 key can be used to trigger other modules such as a WIRELESS-T24-SO module to
provide
printer services etc. This key will generate a Data Provider message which other modules
can use.
Set this value to non zero to enable this function and to define the Data Tag that will
identify the message sent.
The content of the message is defined by the F1 Data parameter.
If motion detection is configured then this key will have no effect while
the reading is not steady.
F1 Data
Define what data is carried in the Data Provider message when the F1 key is pressed.
Select Always Gross to transmit the gross value regardless of whether the Tare key has
been pressed.
Select As Displayed to transmit either the gross or net value depending on the currently
displayed data.
Remote Data Tags and IDs
Data Tag
Enter the Data Tag of the message to use for the specified input item.
ID
Enter the ID of the module used to supply the specified input item.
This is only necessary for Item Mode where individual items are to be
woken using the Wake key as opposed to letting the handheld wake all
modules.
If you are not using Item mode then you are not required to enter the ID although it will be
filled in automatically if you pair to a module to retrieve its settings.
P
Click this then perform pairing on a remote transmitter to automatically provide the ID and
Data Tag. Usually pairing is activated by removing and replacing the power supply on the
remote transmitter. You must perform pairing within 5 seconds of clicking the button.
X
Click this to reset the Data Tag and ID to zero (disabling the input item).
Set Prompts
For modules with a firmware revision of 1.2 and newer this button will be visible. This
displays a page where the message labels shown before switching between channels can be
set by the user.

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2.2. Prompts
Here you can adjust the messages shown when switching between input channels in Item Mode..
Items you can change:
Prompts 1 to 12 These prompts are briefly shown when switching between inputs. They default to
‘input 1’, ‘input 2’ etc
Leave the prompt blank to display the Data Tag of the module supplying data to
the current item.
The displayed prompts are limited to 8 characters and be aware that the 7
segment LCD display is very limited in how it can represent letters. Some
letters cannot be displayed. These include K, M, W, X
Prompt for result Enter the prompt to display before the total result is displayed.

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2.3. Zero Settings
Here you can adjust settings that affect the display of zero.
Items you can change:
Power On Auto Zero Here you can determine whether the WIRELESS-T24-HA performs automatic zero when it
is powered on.
Enter zero to disable this function.
If you enter a non-zero value then when the handheld is first turned on it checks the
value read from the transmitter module. If this falls within ± of this value then the
display will be altered so this reads zero.
Example: A strain gauge transmitter module (WIRELESS-T24-SA) is calibrated in
kg and measures the weight of boxes on a platform. The weight of the platform itself
has been removed using system zero on the transmitter module.
Sometimes there is debris on the platform which you do not want to see when
viewing the weight of boxes that will be placed on the platform later.
The minimum weight of a box is 5 kg so you could set the Power On Auto Zero to 2
kg.
When you turn on the handheld, if the weight on the platform is between -2 and
+2kg then the handheld will tare this weight off and so read zero.

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Zero Indication Band Using this setting you can mask tiny changes in input after you press the Tare
button.
Entering zero will disable this function.
Entering a non-zero value will provide a band within which the display will always
read zero.
Once the reading exceeds this value the real weight will be displayed as no taring
is taking place.
Example: You are adding boxes to a platform and you press tare between adding
each one so you can see the weight of each box.
Without this setting activated each time you tare the display will be around zero
but not exactly zero (By setting the display resolution you may hide this
difference) by setting a small value here such as 0.2kg the display will show a
stable zero while actual weight is fluctuating less than ± 0.2kg.
Allow System Zero Entering a non-zero value here will enable system zero to be performed by
holding down the Tare key for a number of seconds.
The value entered here represents the number of seconds the Tare key needs to
be held.
Perform System Zero This section allows the user to apply or remove a system zero.
This will require that the transmitter modules are configured and attached to the
handheld and the entire system is ready for zeroing.

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2.4. Zero Settings Advanced
This advanced section allows the use of a specially configured external module to supply the system zero value
for the handheld to use.
Example:
The same handheld is used with a truck that picks up different trailers and is required to display the sum of 4
strain gauges connected to each trailer (Using WIRELESS-T24-SAs).
Because each trailer will have a different system zero requirement you would add a further module to each trailer
set to transmit the system zero value. It is the Data Tag that is entered here.
On all trailers the transmitter module sets would share the same Data Tags.
Items you can change:
Data Tag Enter the Data Tag of the message to use for the external system zero.
ID Contains the ID of the module used to supply the external system zero. This is only necessary to
provide a visible record of the remote module and is shown to keep compatibility with the Mode
and Communications page.
You do not need to enter anything here although it will be filled in automatically if you perform a
pair to retrieve data.
PClick this then perform pairing on a remote transmitter to automatically provide the ID and Data
Tag. Usually pairing is activated by removing and replacing the power supply on the remote
transmitter. You must perform pairing within 5 seconds of clicking the button.
X Click this to reset the Data Tag and ID to zero (disabling the external system zero function).

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2.5. Display Format
Here you can adjust the display.
Items you can change:
Format & Resolution Here you can define how the values are displayed on the LCD. There are 7 digits
available and you can define where the decimal point is shown by entering
numerals where a zero indicates a numeric digit position.
When the data is being displayed the number of decimal places you define may
be overridden as the display will always show the correct number of integer digits.
Example: If you set the format to 000.0000 and the value to display is 1000.1234
the display will show 1000.123
You can also define the resolution, which is the block size of changes to the
display.
Example: If you enter the format as 000.0005 the display will only change in steps
of 0.0005 which can be used to mask noisy digits at high resolutions.
Leading Zero Suppression This can be turned on or off and will suppress leading zeroes when on.
Example: If the display reads 000.123 with leading zero suppression turned off it
will display 0.123 when leading zero suppression is turned on.
Overload Limit You can enter a limit here above which Overload will be shown on the display

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instead of the actual value.
Enter zero to disable this feature.
Advanced This opens the advanced page where you can scale the displayed data.otion Band
By entering a non-zero value here you activate the motion detection.
If, within the Motion Time, the displayed value changes by more than the amount
entered the reading will be deemed in motion or unstable and the display will
flash. The F1 key will be disabled while the reading is in motion.
Motion Time Enter a time in seconds within which the displayed value must not change more
than the Motion Band amount set above.

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2.6. Display Format Advanced Settings
Here you can adjust the display update rate and also scale the displayed data. This may be used, for example, to
convert the data from a WIRELESS-T24-SA calibrated in kg so that the handheld display shows lb.
Items you can change:
Display Update Rate Enter the interval in milliseconds between display updates. The default is 300
milliseconds. i.e. approximately 3 updates per second.
Custom Display Scaling This can be used to change the displayed value to a different unit or to otherwise
scale it. You simply enter the original and required values at a low and high point.
Example: If a WIRELESS-T24-SA was supplying data in kg and you wanted to show
tonnes.
You would keep both the low points at zero. Enter At High Input Value of 1000
and Display Should Read Value of 1.

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2.7. Advanced Settings
You should not normally need to change these settings.
Items you can change:
Waker Duration When the handheld is turned on it may attempt to wake the paired transmitter
modules. This setting allows you to adjust the time it will wait to wake the remote
modules in milliseconds. The default is 12000.
Do Sleep Wake You can select whether the handheld wakes the remote transmitter modules on power
up and sends them to sleep on power down.
Select No to disable this function. The default is Yes.
Auto Off Delay Here you can specify the delay in minutes after which the handheld will automatically
turn off after no button is pressed.
Enter zero to disable this function. The default is 5 minutes.
Keep Awake Interval While the handheld is retrieving data from the transmitter module it periodically sends
out a Keep Awake packet. This will stop the transmitter module from going to sleep
while the handheld is in use. The default is 5 seconds.
Pair Wait Duration Here you can set the duration that the handheld will wait to achieve successful pairing
when it is turned on in Pairing mode. The default is 5 seconds.
Item Duration Used when in Result Mode and the Next key has been enabled to allow viewing of
discrete inputs. Enter a time in seconds that the individual item value will be displayed
for before the display is automatically switched back to showing the result.

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Message Duration Each time the Next key is used to step through available items the display shows a
brief description of the data about to be displayed. Input 1, Input 2, Result etc.
The time you enter here in milliseconds is the time that this message will be displayed
before the actual value is shown.
Newer versions of the handheld allow the user to define these message prompts. See
Prompts

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3. ANTENNAS
These modules have the antenna already fitted inside the enclosure so there are no specific mounting
requirements.
4. SPECIFICATION
Electrical
Min
Typical
Max
Units
Power Supply voltage
2.5
3.0
3.6
Vdc
Power Supply
Min
Typical
Max
Units
Active
35
40
mA
Low power mode
120
160
µA
Estimated Battery life using 2Ahr batteries:
Standby mode (Powered off)
1.5
Years
Continuous operation
35
Hours
Environmental
Min
Typical
Max
Units
IP rating
IP67
Operating Temperature Range
-10
+50
C
Storage Temperature
-40
+85
C
Humidity
0
95
%RH
Physical
Hand Held Dimensions
90 mm x 152 mm x 34 mm