<< Click to Display Table of Contents >> Navigation: Hardware Overview > LOG Dataloggers > RMS-LOG-868/915 > Device description |
Functions |
Description |
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Order code |
RMS-LOG-868 RMS-LOG-915 |
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Measured parameters |
Humidity & temperature with HygroClip HCD-S Differential pressure with PCD-S CO2 with CCD-S Temperature with TCD-S |
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Dimensions |
105 x 113 x 38 mm |
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Housing material |
ABS |
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Weight |
200 g |
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Power Supply |
All input modules (data loggers) have the following three power supply variants: oTwo 3.6 V lithium thionyl chloride AA batteries The power supply of the batteries suffices to carry out measurement and data storage and to operate the wireless interface. Devices with an Ethernet interface must also have one of the following power supplies. o24 VDC ±10 % / <100 mA1 via terminals (V+ / V-)
Note on the batteries: The AA batteries are lithium thionyl chloride batteries available in the industrial trade. All RMS input modules are designed for this type of battery. Only batteries of the same type or with identical characteristic values may be used as replacement batteries.
Type of Battery
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Digital interface |
The logger is operated completely via the LAN or wireless interface. |
1Power supply requirements: 24 VDC ±10 % / >4 W nominal / <15 W limited power source
RMS Data Logger
The data logger carries out measurements in a fixed interval, saves all measured data and sends it to the database by radio or Ethernet 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 measurement parameters depend on the connected probe; two different parameters can be measured at the same time. 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:
oLogging of the measured values of the connected probe
oData logging of up to 44,000 pairs of measured values
oTransfer of the recorded data to the RMS software
oCalibration and adjustment of the probe
oFirmware update
Depending on the version, the RMS data loggers have different inputs. Devices with interchangeable probes (E2 connector) detect the measurement parameter of the probe automatically. The following table lists the main types:
Data Loggers for Interchangeable Probes |
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RMS-LOG-L |
Data logger, external probe, LAN |
RMS-LOG-868 |
Data logger, external probe, 868 MHz |
RMS-LOG-915 |
Data logger, external probe, 915 MHz |
Gateway |
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RMS-GW-868 |
Gateway, LAN to 868 MHz |
RMS-GW-915 |
Gateway, LAN to 915 MHz |
Temperature Data Loggers |
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RMS-LOG-T30-L |
Data logger, external probe, LAN, 2 x Pt100 |
RMS-LOG-T30-868 |
Data logger, external probe, 868 MHz, 2 x Pt100 |
Mini data logger Modules |
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RMS-MADC-xxx-A |
Data logger, 1 x analog input, 868 / 915 MHz, 0(4)…20 mA |
RMS-MADC-868-V |
Data logger, 1 x analog input, 868, 0…10 V |
RMS-MLOG-B-xxx |
Mini data logger, integrated temperature & humidity probe,%rh, °C, 868 / 915 MHz |
RMS-MLOG-T-xxx |
Mini data logger, integrated temperature probe, °C, 868 / 915 MHz |
RMS-MLOG-T10-xxx |
Mini data logger, external NTC probe, °C, 868 / 915 MHz, NTC needs to be ordered separately |
RMS-MLOG-LGT-868 |
Mini data logger, integrated light sensor, 868 MHz |
RMS-MDI-868 |
Mini data logger, 1 x digital input, 868 MHz |
Analog Input Modules |
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RMS-4RTD-L-R |
Input Module, 4 x PT100 input, LAN |
RMS-8ADC-L-R-V |
Input Module, 8 x analog input, 0…10 V, LAN |
RMS-8ADC-L-R-A |
Input Module, 8 x analog input, 0…20 mA, LAN |
Digital Input Modules |
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RMS-DI-L-R |
Data logger, 2 x digital input, LAN, DIN Rail |
Digital Output Modules |
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RMS-DO-L-R |
Data logger, 2 x digital output, LAN, DIN Rail |
Display Modules |
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RMS-D-L |
Display, 4 x Measurement points, LAN |
The device is equipped with a real time clock. The time is continuously synchronized if there is a connection to the server.
Data Logging and Measurement Interval
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.
Indicator and Button
The device has a button and a multicolored LED for operation and display of the operating status.
The button is used when the device is put into operation or for unpairing.
The LED indicates the device status.
Important:
If the RMS wireless device is offline for a longer period of time, then this may cause for the wireless module to be sent into failure mode. This happens when a very low power supply is supplied to the device. Once the wireless module is in failure mode, it cannot be resuscitated. Once the wireless module has failed, the device's LED will blink differently to any way that is described in the manual.
Recommendation: Please remove the batteries if the user anticipates keeping a wireless device disconnected for a longer period of time. |
Battery
After removing the wall bracket, insert the batteries according to the label in the battery compartment.
oThe batteries are used to power the unit in the event of a failure of the external power supply. In battery operation, the functionality is limited and the device cannot be addressed via Ethernet.
oLithium AA batteries with 3.6 V are used.
oThe mounting position must be observed. The polarity is indicated on the battery and in the battery compartment.
Rotronic have tested and recommend the following batteries:
1.Fanso ER14505M,
2.Titus ER14505M,
3.Ramway ER14505M.
When using other batteries, Rotronic cannot guaranty that the logger will work correctly.