Modbus duct sensor LKM460
LKM460 duct temperature / humidity sensor with Modbus RTU output
The LKM460 is an duct temperature/humidity probe with Modbus connection. It measures the temperature and relative humidity for building and system automation.
The probe is designed as a slave. RS485 is used as the electrical connection. TCP / IP with one or more devices is also possible via a gateway.
Interface parameters and slave address can be set via the mini USB interface.
The sensor is supplied fully calibrated. Minor corrections can be made on site using two controllers.
The probe is designed as a slave. RS485 is used as the electrical connection. TCP / IP with one or more devices is also possible via a gateway.
Interface parameters and slave address can be set via the mini USB interface.
The sensor is supplied fully calibrated. Minor corrections can be made on site using two controllers.
| Input: | Semiconductor sensor SHT 31 | integrated | ||
| Measuring range temperature: | -40...85°C | |||
| Measuring range humidity: | 0...100% | |||
| Supply voltage: | 10...35V | |||
| Output: | Modbus RTU | Via gateway Modbus TCP possible | ||
| Electrical protocol: | RS485 | |||
| Maximum cable length | 1200m | |||
| Transmission rate: | 19200/9600/4800/2400/1200 Baud |
configurable via software | ||
| Parity: | even, odd, none | configurable via software | ||
| Stop-bit: | 1 stop bit/2 stop bit | configurable via software | ||
| Termination resistor: | configurable via software | |||
| Measurement error temperature: | typ. 0,2°C | at 25°C | ||
| Measuring error Humidity: | typ. <% | at 50% RH | ||
| Operating temperature range: | -30...85°C | |||
| Humidity: | <95% | |||
| Clamping type: | Screw terminals | |||
| Clamping range: | 0,13...1,5mm² | |||
| Junction box dimensions: | 65 x 58 x 265mm | W x D x H d=14mm | ||
| Length sensor: | 230mm | |||
| Diameter sensor: | 14mm | |||
| Weight: | approx. 230g | |||
| Housing: | PA6 white | GK30 | ||
| Degree of protection: | IP64 | Screw connection PG9 | ||
| EMC: | EN 61326-1 EN 61326-2-3 |
Emission and noise immunity | ||
► Data sheet in PDF format 
► Operating instructions in PDF format
► Program for configuring the MODBUS parameters
► Operating instructions in PDF format
► Program for configuring the MODBUS parameters