Industries such as food and beverage or pharmaceuticals have many regulations and specifications to follow. Often, these existing systems or system structures have temperature sensors integrated already.

These are the areas where the TrustSens TM371 self-calibrating temperature sensor is particularly useful. However, you’ll also need an RSG45 data manager (also called a memograph) to take advantage of the data. Read on the article to know more. 

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Why the Endress+Hauser RSG45 data manager?

For users who don’t have a HART card in their control system or can’t change the established peripherals (analog, fieldbuses, etc.), how can they access the calibration protocols and get information on the device status? This is where the RSG45 data manager comes in.

The RSG45 stores the calibration protocols of connected TrustSens sensors and makes them available on the site and via a web server. In the web server, you can search for specific protocols and create a calibration certificate at the push of a button. All calibration protocols have a time stamp, which makes searching very easy.

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Visualizing the data managed by the RSG45

The RSG45 can visualize measured and calibrated values in customer-specific process images. If the values should only go to the control system, the DIN-rail version of the RSG45 (without display) is ideal. The values are then visualized exclusively in the web server.

System integration

The RSG45 regularly reads up to four measured values, including status information from the HART device. Furthermore, it acts as a gateway between a PC and a TrustSens. That means you can set parameters with the E+H FieldCare operating tool on a PC connected to the RSG45 via the local area network.

RSG45 data manager display values

  • Process temperature
  • Calibration counter
  • Deviation in calibration
  • Device electronic temperature

The RSG45 can visualize these values and transmit them to the control system via Ethernet, Modbus, Profibus, or Profinet. If the TrustSens has a problem, it can send an alarm by text message, relay, or fieldbus output.

If, for example, the temperature data goes from the TrustSens to a controller on an analog signal, an RSG45 integrated into the loop can automatically transfer its calibration protocols to higher-level systems.

In addition, it monitors the device status of the TrustSens sensor and reports to the controller via the relay output. So you can monitor up to 20 TrustSens with one RSG45. You can also manually create field data manager (FDM) software calibration certificates on the device or in the web server, based on the stored calibration protocols.

Alternatively, the RSG45 can generate the certificates and store them in the customer system automatically, in an audit archive or similar database. The FDM software handles this automatic export.

If you want to store certificates sorted by device tag or only at selected times (like one per week), you can set this in the FDM as well. With the help of the RSG45, integration of the TrustSens self-calibrating temperature sensor is a breeze and time-consuming calibrations and documentation sorting are history.

endress + hauser rsg45 data logger memograph from behind

Final notes about the RSG45 data manager

The RSG45 gives access to actual values, curves, status information, and calibration protocols on site and via web server. It also enables automatic export of calibration certificates to the network and integrates easily into existing systems (analog, Ethernet, fieldbuses).

In addition, you can get the device status and alarms via relay, and the tamper-proof data storage meets with FDA 21 CFR11 regulations.

If you want to know more about data managers, you can get in touch with our engineers!

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