Controllers & Temperature Controllers
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LU-904M Intelligent Measuring & Control Instrument
Measuring and control instrument for level, temperature and pressure measurement.
Built on the LU-604 smart measurement and control instrument, the LU-904M smart measurement and control instrument further improves the instrument's noise immunity and overall performance through a modular structure, EMI suppression, and other technologies. The LU-904M is an intelligent, high-accuracy digital indicating instrument for level, temperature, and pressure measurement and control; connected with level, pressure, and temperature sensors and transmitters, it can form level, temperature, and pressure measurement and control systems of various ranges and specifications. The input signal of the LU-904M can be changed freely, and it can be connected to thermocouples, RTDs, 0-10mA or 4-20mA standard current, and 0-5V, 1-5V standard voltage signals. The LU-904M provides four alarm outputs, each of which can be freely defined as a high-limit or low-limit alarm; it can provide 0-10mA and 4-20mA standard current transmitter outputs with freely settable output values, as well as a DC24V/50mA transmitter supply output. A bar graph displays the measured value. The LU-904M is an intelligent, high-accuracy digital indicating instrument for level, temperature, and pressure measurement and control; connected with level, pressure, and temperature sensors and transmitters, it can form systems of various ranges and specifications.
| 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 Type G: 48×48×100 Cutout: 44×44
LU-904M Intelligent Measuring & Control Instrument User Manual
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