Device description¶
RMS Data Logger - intended use
The data logger carries out measurements in a fixed interval, saves all measured data and sends it to the database by radio link. Should the connection be lost, the logger stores the data intermediately to protect data integrity and fills up the data gaps when the connection has been restored. The device has a battery so that logging of measured data is also ensured in the event of a failure in the external power supply.
The data logger provides the following basic functions:
- Logging of the measured values of the connected probe
- Data logging of up to 44,000 pairs of measured values
- Transfer of the recorded data to the RMS software
- Calibration and adjustment of the probe
- Firmware update
- Device audit trail
General information¶
| Order code | RMS-LOG-W-T10-D |
|---|---|
| Measured parameter | Temperature with an NTC sensor |
| Dimensions | 74 x 120 x 35 mm3 |
| Weight | 174g with wall holder, without batteries. |
| Housing material | Macrolon 2458 |
| IP | IP65 |
| UL | UL94V2 |
| Power supply | Range: 4.8...6.5V Source: Battery (AA) or USB-C |
| Accuracy (Temperature) | +/- 0.15K (electronic) plus the accuracy of the NTC sensor |
| Adjustment | The measurement error between reference and UUT is acquired and correct by an adjustment. Possible are 1-, 2- or 3-point adjustment. It needs the use of the RMS-App. - 1-point adjustment: Correction of the the measurement as an offset over the complete measurement based on the measurement error between reference and UUT. - 2- or 3-point adjustment. Measurement correction is based on proportional interpolation between two adjustment points if measurement is between two adjustment points. Measurement correction is based on the next adjustment point (constant extrapolation) if the measurement point is out of the adjusted points. |
| Battery | 4 commercially available 1.5V AA batteries Batteries are not supplied with the device Recommended batteries: Energizer L91 AA Ultimate Lithium 1.5 Volt (3000mAh) |
| Data Logging | For each temperature measurement, the measured values are stored in the memory with the associated time stamp. At a measuring interval of one minute, data can be stored for one month, which corresponds to approx. 44,000 measurements. If the memory is full, the oldest values are overwritten. |
| Operational temperature range of the logger | -30...85°C |
| Storage temperature of the logger | -30...85°C |
| Data memory | 44'000 measured values, including the time stamp |
| Measurement interval | RMS OnPremise: 10s, 30s, 1min ... 60min RMS Cloud: 1min ... 60min |
| Digital interface | The device communicates completely via WiFi. The USB-C connection is only used for power supply and not for device communication. |
| WiFi | IEEE 802.11 b/g/n (2.4GHz) Security as WiFi Client: WPA-PSK, WPA2-PSK, WPA2-PMF, WPA3 Security as AP mode: WPA-PSK, WPA2-PSK, WPA2-PMF |
| WiFi range | Freefield: 300m Inhouse: up to 60m (depends strongly on walls and other battiers between the logger and the WiFi access point/router) |
| Protocoll | HTTPS |
| Software Compatibility | RMS and RMS-APP |
| Data volume per interval | Logger sends and receives about 300 bytes to/from the Server every interval |
| RTCC (Real Time Clock Calendar) | The device is equipped with a real time clock. The time is continuously synchronized if there is a connection to the server. |
| Relative humidity | 95%rh not condensing |
| Max. altitude | ≤ 2000 m a.s.l. |
| Pollution degree | PD2 |
| Cleaning | The device can be cleaned using a dry or damp cloth or by the use of commercially available soap-based cleaning products. |
| Repair | Rotronic does not recommend to repair a defective device. Please contact the Rotronic support to initiate a device replacement by a new device. |
| Manufacturer | Rotronic AG Grindelstrasse 6 CH-8303 Basserdorf Switzerland |
| Note: If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired. |
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Updated: 15.04.2026