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Summary of Contents for TASLER LTT500
- Page 1 Manual universal Pre-Amplifier LTT500 LTT Labortechnik Tasler GmbH Friedrich-Bergius-Ring 15 D-97076 Würzburg www.tasler.de Tel. +49-931-359 61-0 Fax +49-931-359 61-50...
- Page 2 Software of universal Pre-Amplifier LTT500 Operation Manual LTT Labortechnik Tasler GmbH Friedrich-Bergius-Ring 15 D-97076 Würzburg www.tasler.de Tel. +49-931-359 61-0 Fax +49-931-359 61-50 Operation Manual Version 1.6...
- Page 3 ©2009, Labortechnik Tasler GmbH Al rights reserved Würzburg, Deutschland First edition, Mai 2010 Document Number: 500-2010-1-4 Rev.A Contact Labortechnik Tasler GmbH Friedrich-Bergius-Ring 15 97076 Würzburg Telefon: +49 9 31 – 3 59 61 - 0 Telefax: +49 9 31 – 3 59 61 – 50 http://www.ltt.eu...
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Page 4: Table Of Contents
Content 1.HARDWARE INTRODUCTION .........................6 ............................. 6 ENERAL INFORMATION ............................6 TART OF OPERATION LTT500 ........................7 WITCH ON AND OFF THE STATUS INDICATION OF EACH CHANNEL....................8 1.5. S ........................... 8 ENSOR CONNECTION ODU-C ............................9 ONNECTOR 1.6.1. The measurement cable from LTT....................10 1.6.2. - Page 5 5.2.7. Strain-Gauge Quarterbridge ......................40 5.2.8. CURRENT ............................43 5.2.9. RTD ..............................45 5.3. O ............................47 FFSET SETTING 6. ADMINISTRATE CONFIGURATIONS .....................48 6.1. D ............................48 EFAULT SETUP 6.2. L ............................... 49 ETUP 6.3. S ..............................50 AVE SETUP 7.
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Page 6: Hardware Introduction
LTT184 transient recorder. See picture 1. Picture 1: Back side of LTT500 The input channels are located at the front of LTT500. Connect the analogue input cable with the ODU connector there. See picture 2. -
Page 7: Switch On And Off The Ltt500
Switch on and off the LTT500 By touching the sensor field –with the LTT logo- on the front of the LTT500, the device will switch on. To switch off, the sensor field must be touched 3 seconds long. By software control, the switching off can be blocked. The power switch symbol will shine red, by a touch of your finger, if the switching off is blocked from the software! Operation Manual Version 1.6... -
Page 8: Status Indication Of Each Channel
Overload of sensor power supply The status details will be indicated in the preAmpLTT software. 1.5. Sensor connection Every channel of the LTT500 universal Pre-Amplifier has a huge amount of integrated signal conditioning functions. The individual function will be activated by software OFF, Volt, ICP, Strain Gauge „DMS“... -
Page 9: Der Odu-Connector
The ODU-Connector The part numbers from ODU are: S11-KOC-P08MFGO-6500 (without bend protection tube) S21-KOC-P08MFG0-6500 (Prepared for protection tube) Coding Soldering Connector Coding Soldering jack Operation Manual Version 1.6... -
Page 10: The Measurement Cable From Ltt
1.6.1. The measurement cable from LTT LTT offer optional a pre-configured measurement cable. The cable has a length of 3 meter. One end is configured with an ODU connector and the second end is open for own configuration. The shielded cable offers 4 Twisted-Pair lines, which are shielded too. Die Pin-Layout is like following: Twisted-Pair Colour... -
Page 11: Pin-Layout For Sensor Connection
1.6.2. Pin-Layout for sensor connection Connection type Pin Layout Description Volt Single-Ended Pin 3: Input + Pin 8: Channel Ground Volt Differential Pin 3: Input + Pin 2: Input - ICP Sensor Pin 3: Input + Pin 2: Input - Current measurement Pin 3: Input + Pin 2: Input -... - Page 12 Strain-Gauge-Fullbridge Pin 6: Power Out + Pin 5: Sens + Pin 3: Input + Pin 2: Input – Pin 7: Power Out - Strain-Gauge-Halfbridge Pin 6: Power Out + Pin 5: Sens + Pin 3: Input + Pin 7: Power Out - Strain-Gauge-Quarter Pin 6: Power Out + bridge...
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Page 13: Software Introduction
It depends on the operation system, display resolution and other graphical extensions on your computer system. Details regarding installation and operation of the LTT500 hardware are mentioned in the chapter „Hardware introduction“ at the beginning of this document. - Page 14 Microsoft Windows™ XP, (minimal Service Pack 2) ® Microsoft Vista™ The preAmpLTT software starts first time with the resolution of 920x600 Pixel. A higher resolution is recommended for operation with multiple LTT500 units on one computer. Operation Manual Version 1.6...
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Page 15: Software Installation
: The executable program with graphical user interface. preAmpLTT.exe : The library for controlling the LTT500 universal Pre-Amplifier via the USB interface. USBIICLTT.dll All necessary files will be in the delivery as data medium like CD, or it will be delivered attached on a e-mail. By ®... -
Page 16: Updating
2. Software introduction 2.4. Updating New versions of this program are available on internet, or by contact one member of Labortechnik Tasler GmbH. Please check from time to time, if a newer software version of preAmpLTT is available. Before updating to a newer software version run a backup of all files inside the directory, where the preAmpLTT software is saved. -
Page 17: First Steps
3. First steps 3. First steps After the first installation of preAmpLTT all program parameter are set with standard parameters. This chapter will explain you, how to change parameters, which screens are available at program start and how to initiate the search of devices. - Page 18 3. First steps At the first start following standards are valid (Pic.1): Language: English Minimal window size All optional acknowledgment dialogs switched on Critical functions regarding timing and system are switched off Please select in the menu Options–Language your preferable language, this will make the following steps easier for you.
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Page 19: Program Options
3. First steps 3.2. Program options All selectable parameter of this program can be set in the menue point Options : Pic.2: Menu point „Options“ Beside the mentioned menu point Language , there is also the point Settings , which open a dialog with the actual program parameters. - Page 20 3. First steps Advice regarding the program options: All program parameters as well as the TEDS database will be saved f.e. at Windows Vista in the user account path of the actual user. F.e. at: C:\Users\<user name>\AppData\Roaming\LTT GmbH The TEDS database is saved in the file named: TEDSinfo.bin and can be copied from there to any other user account path of another user.
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Page 21: Menu Point View
Home: This view is always available and enables a central control of all important functions. Channel Control: Is only available, if at least on LTT500 device is found by the software. At this view, all settings of the channels can be done. -
Page 22: Operation Concept
LTT500 universal amplifier connected with the computer to see this screens. 4.1. Search device In case at least one LTT500 universal amplifier was connected with the computer and also switched-on, the software will automatically find this device. After analyzing the channels of this device, the software will change to the Channel Control view and will display the actual setting of each channel. - Page 23 To avoid any delay in start-up of the system, switch on first the LTT500 hardware by a short touch on the sensor plate with LTT logo on. Wait until the initial sequence –the internal relays stop clicking- and the blue light behind the sensor plate is shining, before starting the preAmpLTT software.
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Page 24: Channel Control
4.2.1. Description of channel control window Every channel of LTT500 universal amplifier is displayed in one line. Each row gives the information about the configuration and status of each channel. Pic.5: Channel control with selected channels The first line indicates the channel name, its belonging to which device (f.e. - Page 25 4. Operation concept The fourth line and following indicates sensor related settings. Pic.5 do not show such sensor related settings. The details are explained in the following chapters. Here you see in the fourth line the Offset information, like activated or not and the offset value in percent of the selected input range. The fifth line indicates the status of each channel: Green: Status Okay Yellow: The status is actual okay, but there was an error in the history.
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Page 26: Selection Of Channels
4. Operation concept 4.2.2. Selection of channels To change setting of the channels, the row of this channel needs to be selected. The selection is done with the left mouse click on the channel row. It is possible to selct also more channel at once, with the standard ®... -
Page 27: Channel Context
4. Operation concept 4.2.3. Channel context The channel context contains channel and column related functions and settings. To open, you have to right mouse click on a channel column of a selected row. The context menu of the first column contains general functions. -
Page 28: Execution Mode
4. Operation concept 4.2.4. Execution mode All channel settings –which are explained in the next chapter-, can be done in two different ways: AdHoc mode: All settings will be directly submitted to the device, direct after changing this setting. Setup mode: All settings will be first only shown in the software. The sending to the device will be executed by pressing the button Commit . -
Page 29: Channel Setup
5. Channel setup After giving you a general overview about the operation of PreAmpLTT software, this chapter will explain the details of functions and settings of the channel from LTT500 universal amplifier. 5.1. General channel functions The context menu of the first column (also ALT+1) offers general functions, independent of the selected sensor type. -
Page 30: Filter: Lowpass
5. Channel setup 5.1.2. Filter: Lowpass Every channel has two implemented low pass filters, with optional (on request customized) filter values. The filter value can be selected in the context menu. In this example 100kHz and 1.5MHz. 5.1.3. Rename channel This function is available, if just one channel is selected. -
Page 31: Check Udms
5.1.9. Turn Off channel The LTT500 universal amplifier is build also for mobile use at 12V battery power. The option to turn off one or mor channel can extend the battery live time, as less power consumption takes place. -
Page 32: Off
5. Channel setup 5.2.1. OFF No input circuit for this channel is selected. No input signal will be transferred to the output. 5.2.2. VOLT The Voltage input signal will be transferred to the output. The amplification or attenuation depends on the selected input range in the next column. - Page 33 5. Channel setup In addition it is possible to apply a power supply for the sensor. The column Supply enables to select a constant voltage or current supply. That function is necessary to power supply f.e. a belt potentiometer for length measurement.
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Page 34: Icp
The value of current can be individual selected for every channel. F.e. a higher current value can be required, if the cable between sensor and LTT500 is very long. The context menu enables a selection between 0.5mA and 10mA. 5.2.4. Strain-Gauge Current... -
Page 35: Strain-Gauge Fullbridge
5. Channel setup 5.2.5. Strain-Gauge Fullbridge Strain-Gauge Fullbrige is named in this software with DMS Fullbridge (short DMS: DehnungsMessStreifen, German). It is a fullbride with constant voltage supply. The pin layout is like following: Connection type Pin Layout Description Strain-Gauge-Fullbridge Pin 6: Power Out + Pin 5: Sense + Pin 3: Input +... - Page 36 5. Channel setup As next select in the column Coupling the input coupling of the channel. You have the choise between: Coupling Description Zero Input+ and Input- will be shorten to channel ground. The output signal is 0V. Differential Ended DC The differential signal between Input + und Input –...
- Page 37 In the column „Sense“ a sense line can be activated to control the bridge power supply directly at the sensor. On this way, the power drop on the cable to the sensor can be compensated. The LTT500 use just one sense line (5- line technology).
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Page 38: Strain-Gauge Halfbridge
5. Channel setup 5.2.6. Strain-Gauge Halfbridge The strain-gauge halfbridge (DMS-Halfbridge) is very similar to setup as the fullbridge. Only a half part of the bridge is connected to the input. The second part of the bridge is completed inside of the device. Connection type Pin Layout Description... - Page 39 In the column „Sense“ a sense line can be activated to control the bridge power supply directly at the sensor. On this way, the power drop on the cable to the sensor can be compensated. The LTT500 use just one sense line (5- line technology).
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Page 40: Strain-Gauge Quarterbridge
5. Channel setup 5.2.7. Strain-Gauge Quarterbridge The strain-gauge quarterbridge (DMS Quarterbridege) is very similar in operation to the fullbridge. Only one quarter of the bridge is connected to the input. The rest of the bridge is completed inside of the device. Connection type Pin Layout Description... - Page 41 In the column „Sense“ a sense line can be activated to control the bridge power supply directly at the sensor. On this way, the power drop on the cable to the sensor can be compensated. The LTT500 use just one sense line (3-...
- Page 42 5. Channel setup line technology). Because of the symmetric sensor power supply, one line is enough. The negative power supply is compensated, too. In the column „Supply“, the value of the sensor power supply is selected. Operation Manual Version 1.6...
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Page 43: Current
5. Channel setup 5.2.8. CURRENT The sensor type current enables the current measurement over a internally shunt resistor. By selecting this function a popup window appears with below safety comment. Caution: The signal Input+ and Input- (pin 3 and 2) will be shorten by an internally 25Ω resistor. Please ensure that no current over 125mA will be applied. - Page 44 5. Channel setup As next select in the column Coupling the input coupling of the channel. You have the choise between: Coupling Description Differential Ended DC The differential signal between Input + und Input – will be amplified and outputted. Differential Ended 3Hz High Pass Filter As „Differential Ended DC“, but the signal will be filtered by a 3Hz high pass.
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Page 45: Rtd
5. Channel setup 5.2.9. RTD The sensor type RTD enables the resistance measurement of f.e.PT100 temperature sensors. The PT100 will be supplied by a little constant current.. The voltage drop over the PT100 resistor will be outputted. The measured voltage is proportional to the temperature at the PT100. Connection type Pin Layout Description... - Page 46 5. Channel setup Coupling Description Ground Input+ and Input- will be shorten to channel ground. The output signal is 0V. Differential Ended DC The differential signal between Input + und Input – will be amplified and outputted. Differential Ended 3Hz High Pass Filter As „Differential Ended DC“, but the signal will be filtered by a 3Hz high pass.
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Page 47: Offset Setting
One additional advice in reference to all different sensor types: Settings – Extended , to control the van speed of LTT500 universal amplifier. Should you have selected the setting Reduced or Low Noise , some sensor types cannot be selected, to avoid overheating of electronic components. -
Page 48: Administrate Configurations
6. Administrate configurations 6. Administrate configurations The PreAmpLTT software offers several functions to administrate different setup or configurations. The channel relation has a very high priority by the organization of configurations. This is ensured, because every channel has its own individual serial number. In every saved setup the serial number of the channel is registered. Independent of the sorting and number of devices, the software load a setting back to the right channel of the right device. -
Page 49: Load Setup
6. Administrate configurations 6.2. Load Setup Use this function to load a saved setup. The setup file will be first reviewed, if the setup and the connected device match together. Following cases can come up: The saved setup and the channel number and as well the serial number of the channels met together: The... -
Page 50: Save Setup
6. Administrate configurations 6.3. Save setup You would like to reuse a channel configuration in future? Than save the configuration by menu „ File – Save setup“ . The dialog will ask you for a file name and the directory. The ending of file name will be always „. prs“ . If you enter a file name which already exist, you will be ask to overwrite it Save setup (Hotkey F4) Please use this function, if you would like to reuse the configuration in future. -
Page 51: Device Specific Functions
By switching on the LTT500, the device loads its internal saved configuration. The standard is the factory default. The actual channel setup of the software will be transferred and saved on the LTT500 by the menu point „Device – Save config to device“ . Before starting the transfer, a dialog popup which needs to be confirmed. This popup window can be deactivated by the menu point Device –... -
Page 52: Reset Device To Factory Default
7.5. Lock and unlock the device The LTT500 universal amplifier will be switched on and off by touch the sensor field with LTT logo. The device will be powered on immediately by touching the senor field. The switching off is delayed by around 4 second constant touching the sensor field. -
Page 53: Turn Off Device
7.6. Turn off device Use the menu point Device – Turn off device to switch off all connected LTT500 devices. In case Device – Setting – Warn before turn off device is activated a popup window comes up and as to save the actual configuration before switching off the device(s). -
Page 54: Teds
8. TEDS 8. TEDS A TEDS chip at sensors (Transducer Electronic Data Sheets) enables an easy setup of data acquisition systems. The channel configuration can be automatically be done by recognizing which sensor is connected to each channel. The software preAmpLTT recognizes right now the UNIQUE-ID of such a TEDS chip an can load a pre-saved configuration to the channel. - Page 55 8. TEDS Pic.13: TEDS configurator With the key „+Add“ and „-Delete“ the list of entry’s can be modified. With the key „Edit“ the contents can be modified. To modify one entry in the list, mark the entry and press „Edit“. A new window will come up to enter the sensor type and its relevant other channel setting.
- Page 56 8. TEDS Pic.14: Individual channel cofigurator Please keep in mind that all modifications inside the window will become only valid, if you finish the entry by Apply key. Operation Manual Version 1.6...
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Page 57: Addendum A - Menu & Keyboard
9. Addendum A – Menu & keyboard 9. Addendum A – Menu & keyboard Menu structure and hotkey combinations File Default setup Load setup Save setup Rescan for device Exit Alt+F4 Edit Strg+X Copy Strg+C Paste Strg+V Select all Strg+A View Home Channel control... - Page 58 9. Addendum A – Menu & keyboard Device Save config to device Reset device config to factory default Device information Strg+I Device status Strg+S Lock device Unlock device Turn off device(s) Channel Extended channel information Alt+I Channel context Alt+1 Sensor selection Alt+2 Range selection Alt+3...
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