Controllers & Temperature Controllers

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LU-901K Two-loop Measuring & Control Instrument

Four-limit alarm instrument with LCD controller, two transmitter outputs and temperature/humidity control.

CategoryControllers & Temperature Controllers
Model-
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Updated2026-10-27

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Selection customization and technical solution support available. After-sales Service 0086-400-8875-999, Pre-sales Hotline 0086-0592-5711111

The LU-901K two-circuit measurement and control instrument is a smart model whose input signals can be freely set to thermocouple, RTD, standard voltage, or standard current; the two circuits can use different input types. The LU-901K can provide two transmitter outputs and up to four alarms, with user-definable alarm mode and position. It is suitable for controlling physical parameters such as temperature, pressure, flow, and level. The LU-901K is suitable for temperature and humidity control applications. The instrument adopts a WATCHDOG circuit, and its software uses redundancy, trap, and digital filtering techniques, featuring stable performance and high accuracy.

Main Technical Specifications
Basic error:	±(0.2%F.S±1) digit	Resolution:	1,0.1
Special input:	R,WRe526,mV,others	Cold junction compensation error:	±1°C
Broken sensor or over-range:	Display symbol Sb	Sampling period:	0.5 s
Power supply:	85~264VAC	Power consumption:	4W
Input specifications: K,S,B,T,E,J,Wre325,N,Pt100,Cu50,Cu100,0-10mA,4-20mA,0-5V,1-5V
Output module specifications
J1	Relay output (3A, NO + NC)	J2	Relay output (0.8A, NO)
T	Solid-state relay trigger output	V1	CV12V/50mA supply module
V2	DC24V/50 mA supply module	V3	DC5 V/50 mA supply module
R	RS232 communication module	S	RS485 communication module
I2	0-10mA/4-20mA transmitter output	V5	Voltage transmitter output

Dimensions and panel cutout (W×H×D)  Unit: mm

Type A: 96×96×105  Cutout: 92×92        Type B: 48×96×105  Cutout: 45×92
Type C: 96×48×105  Cutout: 92×45        Type D: 160×80×105  Cutout: 152×76
Type E: 80×160×105  Cutout: 76×152      Type F: 72×72×105  Cutout: 68×68