Lunte specializes in the design and manufacture of temperature sensors and nuclear measurement instruments, involved in industries such as industrial, nuclear power, and is recognized as a national-level "little giant" enterprise and a "hidden champion" enterprise in Zhejiang Province.
LT series temperature transmiter adopts HART bussing technique, which is a new generation of intelligent temperaturemodule and an indispensable field device in process control. The device integrates a weath offunctional modules, whichcan realize both general function detection and complex control stratecies. Wsing digital technology, it can be applied toa variety of RTD and thermocouple sensors. The interface between the field and the control room is simple, and the cosof installation, operation and maintenance can be greatly reduced.
Product Overview
| Input signal | Pt 100, Pt 1000, Cu50, Cu100, resistance from 0 ~ 500Ω, 0 ~ 4000Ω |
|---|---|
| Channel Number | Single channel |
| RTD Connection | 2,3,4 wire system |
| Bus Power | HART bus 11~35 VDC |
| Bus Signal | HART signal, current mode |
| Electrical isolation | 1000VAC |
| Operating temperature | - 40℃~85℃ |
| Humidity range | 5%~95%RH |
| Startup time | ≤ 5 seconds |
| Update time | 0.5 seconds |
| Display | COG128x64 dot matrix LCD |
| EMC | Complies with GB/T 18268.1-2010 and EN 61326.1-2013 |
| Protection Grade | Terminal IP00, enclosure IP40 |
| Voltage influence | ±0. 005%/V |
| Alarm signal | Alarm output can be set to 3.5 to 23 mA Upper limit / lower limit current: 20.8 mA / 3.8 mA |
| Current accuracy | 0.03% |
| Intrinsic safety (optional) | Ex ia IIC T4 Ga |
| Signal type | Recommended usage range | Accuracy (25°C) | Temperature drift (per degree Celsius) |
|---|---|---|---|
| Pt100 | -200~850°C | ±0.15°C | ±0.003°C |
| Connection | 2、3、4 |
|---|---|
| CMRR | ≥70dB (50 Hz And 60 Hz) |
| DMRR | ≥70dB (50 Hz And 60 Hz) |
| Signal type | Recommended use range | Accuracy (25°C) | Temperature (per ℃) |
|---|---|---|---|
| B | 500℃～1810℃ | ±0.77℃ | ±0.050℃ |
| E | -200℃～1000℃ | ±0.20℃ | ±0.025℃ |
| J | -190℃～1200℃ | ±0.35℃ | ±0.01℃ |
| K | -200℃～1372℃ | ±0.40℃ | ±0.025℃ |
| N | -190℃～1300℃ | ±0.50℃ | ±0.015℃ |
| R | 0℃～1768℃ | ±0.75℃ | ±0.023℃ |
| S | 0℃～1768℃ | ±0.70℃ | ±0.023℃ |
| T | -200℃～400℃ | ±0.35℃ | ±0.015℃ |
| Compensation accuracy | ±0.5℃ |
|---|---|
| Sensor type | B, E, J, N, K, R, S, T; -100mV ~+100mV Voltage |
| CMRR) | ≥70dB (50Hz And 60Hz) |
| DMRR | ≥70dB (50Hz And 60Hz) |
| Temperature drift | <50ppm/℃ |
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