Data Logger | LM-H PRO RF
The LM-RF series of wireless data logger is a new RF based data logger measuring 3 of the most vital parameters – temperature, % RH and differential pressure in industry. These data loggers are very useful in monitoring data across large facilities as they do not require any wiring. Deployment is very quick and easy. Data are sent by each device directly to the centralized moderator (repeater) device and from there to gtekNetTM software over ethernet port. These data can be accessed from any network connected device using standard web browser.
The data logger consists of RF radio transmitter and receiver operating at 869.88 MHz (SRD License Free: EU Version) frequency. These data loggers form a star network with its moderator. The moderator is connected to the client-server based gtekNetTM software through ethernet. A new data logger when it is in the range of the central node – moderator, gets connected to the gtekNetTM. Each device transmits its data to the moderator and is captured in gtekNetTM. Any parameter of the data logger when set / changed from gtekNetTM, first goes to the moderator and then to the device. These data loggers have an internal memory of 3000 data sets. In the event of communication failure between moderator and device or moderator and gtekNetTM, after reconnection, all the missed data will be synchronized by gtekNetTM automatically. This ensures that no data is missed.
Features
- RF based data logger
- Up to 100m range (Line of Sight – Actual range may vary based on site condition)
- No wiring required
- Quick to deploy
- Long battery life > 1year at 15min Store interval
- High Accuracy, Temperature 0.5 °C; RH ±2 %
- Resolution of 0.1
- Upto 3000 data storage
Specification
| Model No | LM-H Pro – RF |
| Product Code | 6211-x6 |
| Display and Operator Panels | |
| Display Type | 3½ digit LCD Display |
| Status Indicator | Unit Indication, High and Low Alarm Indication, Battery Status and storage on Indication |
| Analog Input Details | |
| Sensor Types: (PCB mounted, Internal Sensors) | |
| Temperature and %RH | Solid-state |
| Range – Temperature: | -20 to +60 °C |
| Range – % RH: | 0 to 100% |
| Accuracy – Temperature: | ± 0.5°C |
| Accuracy – % RH: | ±2% RH between 20-80 %RH |
| ±3% RH otherwise | |
| Measurement Rate | 5 min Default |
| Batch Storage / Data Memory Details | |
| Start / Stop | Remote Start – Stop through gtekNet |
| Store Interval | 5 minutes to 18 Hrs |
| Memory Size | 3000 records; Rollover |
| Environmental | |
| Temperature | (Storage)-30˚C to 70˚C |
| Humidity | (Storage) 5 to 90 % RH Non Condensing |
| Power Requirement | |
| Supply Voltage | Internal 2×1.5V 2500mAH battery size AA |
| Battery Life | >12 months @ 25 Deg C, communication @ every 5 mins approx |
| Communication | |
| RF Transmission | 869.88 MHz (SRD License Free: EU Version) |
| Power | Tx: 10dBm |
| Rx: -40dBm | |
| Protocol | Proprietary |
| Range | 100m Line of Sight approx. |
| (may vary based on the field conditions and interferences) | |
| Network Topology | Star |
| RF Data Packet Standard | IEEE 802.15.4, open communication architecture |
| Antenna | Integrated on PCB Omnidirectional |
| Alarm Output | |
| Alarm Set-point | High/Low individually settable for each channel |
| Alarm Indication | With Display Flashing and arrow to indicate High or Low |
| Overall Dimension | |
| Dimension L x W x D (mm) | 135 x 75 x 30 Approx |
| Protection | IP 54 |
Accessories
No Accessories are supported.
