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H-27x daughterboards together with the LTR27 module allow to create measuring systems with individual galvanic isolation between measuring channels.
The possibility of simultaneous installation of different types of submodules provides a flexible configuration by number and type of measuring channels.
Each measuring channel has an individual integrating ADC based on a voltage-frequency converter.
All H-27x submodules have by-channel galvanic isolation of the input signal circuits.
Notes:
1. The strength of galvanic isolation (test voltage for 1 min - 300 V 50 Hz relative to the ground circuit, - 150 V 50 Hz between channels for two-channel submodules) allows to apply H-27x for the tasks of low-voltage galvanic isolation of measuring circuits and does not allow to apply H-27x for connection to primary circuits ~ 220 V.
2. The measuring range of H-27U, H-27T, H-27I submodules can be increased if external add-on resistors are used in the measuring circuit and in case of user calibration of the changed measuring scale. Details of such application for H-27U, H-27T, H-27I submodules for your measurement task can be specified by L-CARD technical support.
H-27I-5 |
Current meter: 2 channels, 0:5 mA |
H-27I-10 |
Current meter: 2 channels, ±10 mA |
H-27I-20 |
Current meter: 2 channels, 0:20 mA |
H-27T |
Thermocouples signals meter: 2 channels, -25 mV ... +75 mV |
H-27R-100 |
Thermoresistance meter: 1 channel, 0...100 Ohm |
OP-27TR |
Компенсатор холодного спая: -50...+150 ± 0,5° C (опция для субмодуля H-27R-100) |
H-27R-250 |
Thermoresistance meter: 1 channel, 0...250 Ohm |
H-27U-01 |
Voltage meter: 2 channels, ±1 V |
H-27U-10 |
Voltage meter: 2 channels, ±10 V |
H-27U-20 |
Voltage meter: 2 channels, 0...20 V |
LTR27 module. Programmer's Guide.
Ltrapi basic library. Programmer's Guide.
Description of the software for Windows, Linux, FreeBSD and QNX.
LTR modular DAQ system. User's Guide (revision 3.1.0).
Starting to work with DAQ system LTR. Questions about the software.
LGraph2 is a free multi-channel data recorder for Windows. Version 2.35.16 provides the possibility of simultaneous data visualization and recording from the ADCs: L-502, L-780M, L-783, L-791, E-502, E14-140, E14-140M, E14-440, E-154, E20-10, LTR11, LTR114, LTR27, LTR212, LTR216, LTR22, LTR24, LTR25, LTR51. It requires an updated version of the LComp driver (from version 01.04.2010) and ltrserver (no lower than 1.5.2.1).
OPC DA Server for L Card data acquisition modules and LTR crate system. Version 1.0.10.
Beta version. LCOMP library for Windows XP/Vista/Win7/Win8/Win10 32 and 64-bit versions with drivers. The installer and drivers are digitally signed. The library is built on the basis of modern WDM-drivers rewritten on WDF. It includes the WDM driver itself for L-CARD hardware, the DLL library with source code, programming examples, electronic description, etc. The LCOMP library provides support for almost the entire range of products: PCI boards, USB modules. ISA support is excluded.
The library includes “L-Graph I” software. L-Graph I supports the following devices: L-1450, L-761, L-780, L-783, L-791, E14-140, E-154 and E14-440. Files recorded by L-Graph I can also be read and processed using the demo-version of PowerGraph v.3.X.
Libraries for working with LTR crates and modules. Version 1.32.22.
Phone: +7 (495) 785-95-19
Fax: +7 (495) 785-95-14
Sales department: en@lcard.ru
Technical support: en@lcard.ru
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Russian Federation
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