TW-3.
REVISION HISTORY Revision 1.0 2.0 Date 29.10.
CONTENTS Section 1.0 1.1 2.0 2.1 2.2 3.0 4.0 4.1 4.2 4.3 4.4 5.0 5.1 5.2 5.3 5.4 5.5 6.0 6.1 6.2 6.3 7.0 8.0 8.1 8.2 8.3 8.4 9.0 10.0 11.0 11.1 11.
1.0 OVERVIEW The TW-3.0 Telemetry Handheld is designed for use with all products within the d+ range. It is a multi-channel display which can be used to display values from various load cells and load monitoring equipment. The TW-3.0 operates on a free band 2.4GHz frequency and utilises a bespoke frequency hopping protocol which hops frequency 20 times per second to help reduce interference. The TW-3.
1.1 Network Setting Examples Example 1: Using two TW-3.0 Handheld devices with two TL-3.0 Telemetry Tensile links within range of each other. Pair 1 needs to be paired on a network, i.e. Network 1 Pair 2 needs to be paired on a different network, i.e. Network 2 Example 2: Using two TW-3.0 Handheld devices with two TL-3.0 Telemetry Tensile links outside of the range of each other. Both pairs can be paired on the same network as they are far enough apart that interference will not occur.
Example 3: Using one TW-3.0 Handheld device with two TL-3.0 Telemetry Tensile links. The TW-3.0 is set to operate on network 1 and both TL-3.0 Telemetry Tensile Links are paired, as channel 1 and channel 2 to the TW-3.0. Example 4: Using two or more TW-3.0 Handheld devices with one TL-3.0 Telemetry Tensile link. One TW-3.0 is set to Master on network 1, the second TW-3.0 is set to a Slave on network 1 and the TL-3.0 is paired on channel 1.
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2.1 PAIRING The TW-3.0 is capable of receiving readings from up to 12 load cells simultaneously. In order to establish communication with a new load cell the two devices must be ‘paired’. The TW-3.0 Handheld has 12 channels each of which can pair to an individual device. 1. Press the MENU button on the TW-3.0 2. Select the CHANNELS menu 3. Select the CHANNEL with which the new device is to be paired to 4. Scroll down to the PAIR menu option 5. On the device to be paired with the TW-3.
2.2 CHARGING AND BATTERY LIFE The TW-3.0 Handheld requires 3XAA batteries to operate; these can be primary (nonrechargeable) or secondary (rechargeable) cells and can be alkaline, Ni-MH or Li-Po chemistry. WARNING! DO NOT CHARGE BELOW 0°C The battery life of the TW-3.0 Handheld depends on the how it is being used and the fewer functions which are enabled the quicker the longer the battery life will be.
When using secondary batteries they can be charged by connecting the USB charger to the port on the base of the handheld. The power source can be supplied from any PC/laptop or any mains to USB charger plug of suitable quality that provides a 5VDC output and 500mA current. WARNING: Cheap charging devices often fail to meet the requirements of the Electrical Equipment Regulations Act 1994, as a minimum any charger plug must have a CE mark, shown below.
3.0 DISPLAY The display screen will show the status of all features of the TW-3.0. During normal operation, various icons will be present, see the table below for a description of each. ICON DESCRIPTION Channel ID currently being displayed TW-3.0 Handheld battery status Signal Strength to paired device and QoS between 0 and 100 Battery status of the paired device TW-3.0 is currently set as a Master – a numerical network ID will be shown below TW-3.
In the event of a fault or warning condition, the screen will display one of the following icons. ICON DESCRIPTION There is no signal to the paired device The paired device is exceeding it’s WLL There is a fault with the paired device The mV output from the strain bridge is outside of the allowable limit A Slave TW-3.0 cannot communicate with the Master The formula used in the Maths channel is invalid During battery charging, the following icons will be displayed ICON DESCRIPTION The TW-3.
4.0 MENU The menu of the TW-3.0 is accessed by pressing the orange MENU key on the front of the device. From within the menu, all customisable features of the device can be configured. After pressing the MENU button the screen below will be displayed. Use the UP and DOWN arrows it is possible to scroll through the menu and use the MENU button to select an option. 4.1 CHANNELS The channels screen allows access to the configuration of all 12 wireless channels and the 4 Maths channels.
For each individual channel the settings below can be changed: Signal This is the current signal level as a percentage between the TW-3.0 Handheld and the remote device. The signal is how strong the wireless connection is. QoS This is the current Quality of Service as a percentage between the TW-3.0 Handheld and the remote device. The QoS is an indication of how many data packets are successfully being transmitted between the two wireless devices. The QoS is low where there is interference with the signal.
Name The name parameter allows the user to set a 16 character alphanumeric name to the channel for easy identification. The name will then be displayed at the top of the screen on the main display. As shown below with the name “LOADCELL 1”. Pair The pair function is used to permanently create a wireless connection between the TW3.0 Handheld and a remote device. The remote device must be set to pairing mode, see section 2.1. Rate This is the sample rate between the TW-3.0 Handheld and the remote device.
Alarm The alarm set-point value is the numeric value at which the alarm will sound. It will always be in a default unit which the remote device was calibrated to. When the value on the display exceeds the set-point, the internal 70dB audible alarm will sound. Min WLL This is for indication only and shows the minimum Working Load Limit that the device can display too. Max WLL This is for indication only and shows the maximum Working Load Limit that the remote device should be used to.
4.2 NETWORK SETTINGS Accessed from the Main Menu, the Network Settings allows the user to change the network the TW-3.0 will operate on (1 – 75) and also switch the TW-3.0 between Master and Slave operation. Only one master TW-3.0 should be used on a network at a time, multiple masters on the same network will cause interference. If a second display is required, set this to a Slave on the same network. If a second TW-3.
4.3 SIGNAL CHECK Accessed from the Main Menu, the Signal Check screen displays the QoS and the signal strength of each enabled channel. To check the status of each channel, use the UP and DOWN arrows to scroll through. The signal strength is a measure of how strong the connection between the TW-3.0 and the remote device is. The QoS (Quality of Service) is a measure of how reliable the connection is, if QoS is low then there is interference with the TW-3.0 signal.
4.4 HANDSET SETTINGS Accessed from the Main Menu, this screen displays all the information for the TW-3.0. Item Date Time Load Units Local G Battery Type Battery State Battery Volts Serial Number Firmware Radio Version Factory Reset Description Date in DD/MM/YYYY format Time in HH:MM:SS format Sets the displayed load units, when selecting US the additional units of U.S. ton and Kips are added. This is the local value for gravity in ms-2 This indicates the type of battery chemistry currently in the TW-3.
5.0 STANDARD FUNCTIONS 5.1 PEAK HOLD The Peak Hold function is turned on by pressing the Peak Hold button on the front of the TW-3.0. The Peak Hold function will store the highest value seen on the TW-3.0 until the function is turned off. 5.2 TARE The Tare function is turned on by pressing the button on the front of the TW-3.0. The Tare function will set the display to zero when it is turned on, and then reset back to raw input when turned off.
5.3 LOAD UNITS The TW-3.0 Handheld can display values in various units depending on the type of data being transmitted. You can cycle through the units using the unit button on the handheld. Within the Handset Settings menu (section 4.4) it is possible to change the available load units between International and US. International tonne Kg kN lbs US Tonne Kg kN Lbs U.S.
5.4 ALARM There is an audible alarm which will trigger on each channel based upon the alarm setpoint. The alarm set-point is configured within the Channel menu option. Main Menu -> Channels -> Channel X -> Alarm NOTE: If the alarm is active then the handheld cannot be turned off until the alarm goes off again by lowering the load below the alarm set-point.
5.5 MATHS CHANNELS Accessed from the Maths channels section within the CHANNELS menu, this function allows the user to carry out maths functions using all of the channel inputs as variables. To type in a formula, use the Formula Editor and the on-screen keypad to enter. Now enable the maths channel, the value will now appear on the main display as an additional channel, accessed using the UP and DOWN arrows.
6.0 ADVANCED FUNCTIONS When using the advanced version of the TW-3.0 handheld there are additional features which can be utilised. These are: 1. USB data logging 2. RS232 serial output 3. 0-5VDC analogue output NOTE: the 0-5VDC analogue output requires an additional connector to be fitted to the TW-3.0 Handheld at the time of ordering. 6.1 USB DATA LOGGING The USB data logging function is accessed from the Logging option in the Main Menu screen.
Setup Parameters Mode The two possible modes are enabled and disabled. When the mode is set to enabled, the USB logging will start running based upon the setup parameters. If the USB logging is set to enabled and then instantly defaults back to disabled then there is either a missing or faulty USB stick. Channels to Log The possible options for Channels to Log are 1-16 channels, by clicking on the parameter the user can configure which channels are going to be saved.
Units The two possible options for the Units parameter are enabled and disabled. When the parameter is set to enabled, the log file will contain the unit of the value being logged as a separate data item, when the parameter is set to disabled the unit will not be logged. For example, below shows the contents of the log file with the unit of tonnes enabled and disabled. Enabled 03/10/2018 12:48,1.12,tonne,Valid Disabled 03/10/2018 12:48,1.
6.2 RS232 SERIAL OUTPUT The RS232 serial output function is accessed from the RS232 Output option in the Main Menu screen. This function enables the user to output the value of any channel via the USB port on the base of the handheld, all enabled channels can be included in the output string which allows for 12 channels and 4 maths channel. NOTE: in order to be able to enable a channel in the serial output, it must first be an enabled radio channel, see section 4.1.
Baud Rate The Baud Rate parameter can be set to either 9600, 19200, 38400 or 115200 and must be the same as the receiving device. Header The Header parameter is a user configurable, alphanumeric field which will be printed at the start of the serial string before any values. This can be used by third party software to identify the start of a string or to match a required header by the software.
The example string below shows a single channel with the channel ID parameter enabled. Delimiter The possible options for the delimiter are comma, space and tab. The user can select how each data field is separated in the string.
The example string below is using a tab delimiter: Footer The Footer parameter is a user configurable, alphanumeric field which will be printed at the end of the serial string after all data values. This can be used by third party software to identify the end of a string or to match a required footer by the software. The example below shows the serial string with a footer of ‘*’ Terminator The terminator parameter is used to configure if any ASCII commands are printed at the end of the serial string.
LF only This will print a Line Feed command at the end of each line and each set of new data will be printed at the end of the previous line, as shown below: CR and LF This will print a Carriage Return and Line Feed command at the end of each line; this means each set of new data will be printed on the beginning of a new line, as shown below: NOTE: The TW-3.0 handheld has been tested and proven to work using Silicon Labs CP2103 converters.
6.3 0-5VDC ANALOGUE OUTPUT The analogue output function is accessed from the Analogue Output option in the Main Menu screen. The analogue output function provides a 0-5VDC analogue output from an additional circular connector fitted to the TW-3.0 (not the USB) and works with a single channel at a time. Setup Parameters Output The output parameter options are enabled or disabled. The parameter is changed by pressing the OK button on the handheld.
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8.0 TECHNICAL SPECIFICATIONS 8.1 OVERVIEW Enclosure Slimline IP67 plastic enclosure Keypad Membrane with tactile dome switches Display 400x240 Transflective LCD Bridge Excitation 2.5VDC Resolution 5 digits Key Function On/Off / Tare / Peak hold / Units Measuring Units Kg / Metric Tonnes / US Tons / Kips / kN / lb Protection IP67 Battery type 3x AA Battery life (constant use) > 150 hours Operating Temperature -20 to +60°C Range 800m (line of sight) Frequency 2.
8.2 BATTERY SPECIFICATION Minimum Type Quantity Chemistry Voltage Capacity Chemistry Voltage Capacity 8.3 Maximum Unit AA 3 Alkaline 1.0 1.5 2500 1.6 V mAh 1.5 V mAh Ni-MH 1.0 1.2 2500 WIRELESS SPECIFICATION Minimum License Radio Type Modulation Frequency Power Channels Nominal 2.402 Maximum 2.4GHz Licence Exempt Transceiver FHSS 2.
8.4 Dimensions Weight Material PHYSICAL SPECIFICATION Specification 146 x 88 x 25.
9.0 SERVICE AND REPAIR The TW-3.0 handheld requires 3XAA batteries for operation. To replace the batteries follow the steps below. The internal circuitry of the TW-3.0 is sealed, in the event of damage the unit should be returned to an approved Dynamic Load Monitoring service centre for repair. If the TW-3.0 is no longer required it should be disposed of correctly.
10.0 WARRANTY Subject to the terms and conditions set out below, Dynamic Load Monitoring (UK) Ltd (hereinafter 'DLM' or 'the company') warrants its products against defects in materials or workmanship for a period of one year from the date of original purchase. Should a circumstance or condition be observed which might give rise to a claim under this warranty; the user should immediately take the unit out of operation.
11.0 STANDARDS AND DECLARATION OF CONFORMITY 11.1 CE Mark Dynamic Load Monitoring (UK) Ltd tímto prohlašuje, že tento TW-3.0 je ve shodě se základními požadavky a dalšími příslušnými ustanoveními směrnice 2014/53/EU. Undertegnede, Dynamic Load Monitoring (UK) Ltd erklærer herved, at følgende udstyr TW-3.0 overholder de væsentlige krav og øvrige relevante krav i direktiv 2014/53/EU. Hiermit erklärt, Dynamic Load Monitoring (UK) Ltd dass sich das Gerät TW-3.
Hawnhekk, Dynamic Load Monitoring (UK) Ltd, jiddikjara li dan TW-3.0 jikkonforma mal-ħtiġijiet essenzjali u ma provvedimenti oħrajn relevanti li hemm fid-Dirrettiva 2014/53/UE. Alulírott, , Dynamic Load Monitoring (UK) Ltd nyilatkozom, hogy a TW-3.0 megfelel a vonatkozó alapvetõ követelményeknek és az 2014/53/EU irányelv egyéb elõírásainak. Niniejszym Dynamic Load Monitoring (UK) Ltd oświadcza, że TW-3.0 jest zgodny z zasadniczymi wymogami oraz pozostałymi stosownymi postanowieniami Dyrektywy 2014/53/UE.
11.2 FCC This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: 1) This device must accept any interference and 2) This device must accept any interference received including interference that may cause undesired operation Changes or modifications not expressly approved by Dynamic Load Monitoring Ltd. could void the user’s authority to operate the equipment.
