Controllers & Temperature Controllers
Product Details · PRODUCT DETAILS
LU-905YM Series Multi-Channel Scanner
A microprocessor performs mathematical operations for high-precision linearization of nonlinear signals. The fully open user-programmable interface allows configuration of internal parameters such as input type, calculation mode, output parameters and communication settings, with password protection and permanent retention after power-off. Standard MODBUS-RTU bidirectional serial communication supports networked monitoring and management from a host computer, and digital auto-calibration provide
Selection customization and technical solution support available. After-sales Service 0086-400-8875-999, Pre-sales Hotline 0086-0592-5711111
Main features
A microprocessor performs the mathematical calculations, enabling high-accuracy linear correction of various non-linear signals;
Fully open, user-programmable secondary interface supporting the setting of internal instrument parameters (input type, calculation mode, output parameters, communication parameters, etc.); parameters are password-locked and permanently saved even after power failure;
Supports multi-unit network communication and is compatible with standard MODBUS-RTU serial bidirectional communication, allowing networked monitoring and management with a host computer;
Computerized digital automatic calibration and fully digital cold-junction compensation, with the temperature compensation mode freely selectable;
The main unit supports 1-16 channels, and any channel can be disabled (at least 1 must be retained);
Supports channel expansion through auxiliary units: each auxiliary unit provides 4 channels, and up to 12 auxiliary units can be connected for 48 external expansion channels;
The input type of each channel can be freely set within the graduation table, and user-defined graduation types are supported;
The decimal point position and display range can be set separately for each channel;
Comprehensive alarm configuration: each input provides 4 alarm modes (upper-upper limit, upper limit, lower limit and lower-lower limit); the alarm output position is freely settable, and alarm outputs beyond 2 channels are expanded through auxiliary units;
Comprehensive transmitter configuration: each input offers multiple transmitter source options and supports multi-channel comparison (maximum, minimum, average) transmission; the transmitter output position is freely settable, and transmitter outputs are expanded through auxiliary units;
240*160 dot-matrix LCD supporting multiple data presentation modes such as single-screen large view, multi-channel same-screen display and output overview;
Manual scanning function allows manual viewing of the measured value of each channel;
Supports timed printing and immediate data printing (printing function optional), with settable print unit and time interval;
AC or DC power supply selectable, with reliable quality.
Main technical specifications
Basic error: 0.2% FS±1 or 0.5% FS±1
Input signal and measuring range
Thermocouple: S (-50~1768°C), R (-50~1768°C), B (250~1820°C), K (-200~1372°C), N (-200~1300°C), E (-200~1000°C), J (-200~1200°C), T (-200~400°C), Wre325 (0~2300°C)
RTD: Pt100 (-200~800°C), Cu50 (-50.0~150.0°C), Cu100 (-50.0~150.0°C)
Standard signal: 0-10mA, 4-20mA, 0-5V, 1-5V
Other signals: various mV signals, mA signals, 30-350Ω
Resolution: ±1 digit or ±0.1°C
Temperature compensation: -20~70°C
Display range: -32767~32767 or -3276.7~3276.7°C
Alarm mode: on/off, with single/double hysteresis mode selectable
Output mode (auxiliary unit required)
Digital output: relay control output (AC220V/3A, DC24/5A resistive load)
Transmitter output: 4~20mA/0~20mA/0~10mA
Communication output
Interface: standard serial bidirectional communication interface (RS-485, RS-232C, etc.)
Baud rate: 1200~9600bps, freely settable internally
Protection: thermocouple and RTD break detection, over-range/under-range alarm indication for all inputs
Operating environment: ambient temperature 0~50°C, relative humidity≤85RH
Power supply voltage: AC85~265V (50Hz) or DC24V
Power consumption: ≤4W
Construction: standard snap-in type
Main unit panel cutout (unit: mm)
Type A: dimensions 96×96, cutout 92×92;
Type D (horizontal): dimensions 160×80, cutout 153×76.5;
The instrument has a standard snap-in structure; simply push it gently into the panel to install.
LU-905YM Series Multi-Channel Scanner User Manual
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