Controllers & Temperature Controllers
Product Details · PRODUCT DETAILS
LU-902K Single-Display On/Off Controller
Intelligent on/off controller with auxiliary cooling output.
Overview
The LU-902K on/off controller is a single-display, three-position control smart instrument. It adopts a modular structure, EMI suppression, and other technologies, providing strong noise immunity and overall performance. The LU-902K is compatible with various thermocouple, RTD, standard current, and standard voltage input signals. The instrument features an optically isolated main relay output and alarm relay output, and provides two-position and three-position control modes. The alarm can be freely configured as a high-limit alarm, low-limit alarm, positive deviation alarm, or no alarm; in temperature control applications, the alarm output is often used as an auxiliary cooling output. The instrument adopts a WATCHDOG circuit, and its software uses redundancy, trap, and digital filtering techniques. The unit offers very high reliability and can operate in harsh environments.
| 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 |
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
LU-902K Single-Display On/Off Controller User Manual
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