Calibration White Paper WORLD-CLASS CALIBRATION SOLUTIONS

BEAMEX Calibration White Paper Calibrating WirelessHART transmitters WirelessHART transmitters are becoming more popular. What are they and how do they differ from wired HART transmitters? Why do the WirelessHART transmitters need to be calibrated and how is the calibration done? The HART (Highway Addressable Remote Transducer) protocol was developed in the mid-1980s by Rosemount Inc. for use with a range of smart measuring instruments. Originally proprietary, the protocol was soon introduced for free use, and in 1990 the HART User Group was formed. In 1993, the registered trademark and all rights...

BEAMEX Calibration White Paper the transmitter settings and parameters. The configuration is typically done with a HART communicator or with configuration software. It is important to remember that although a communicator can be used for configuration, it cannot be used for metrological calibration. Configuring parameters of a HART transmitter with a communicator is not metrological calibration and it does not assure accuracy. For a real metrological calibration, a traceable reference standard (calibrator) is always needed. How to calibrate a wired HART transmitter It is good to remember that...

BEAMEX Calibration White Paper Wired and wirelessHART transmitter • Safety reasons: employee safety as well as customer/patient safety. • To achieve high and consistent product quality and to optimize processes. • Environmental reasons. The Beamex MC6 field calibrator and communicator input and output can be handled simultaneously with the same device. If the device also has a documenting feature, the calibration can be automatically documented without paper. If a wired HART transmitter needs to be trimmed, the sensor section (A/D conversion), as well as the analog (D/A conversion) section, will...

BEAMEX Calibration White Paper Example Let’s take an example of calibrating an Emerson 648 WirelessHART temperature transmitter. The transmitter is configured for RTD measurement with sensor type Pt100 (Alpha385). Disconnect the RTD sensor and connect the MC6 to simulate the RTD sensor. Connect the MC6’s HART terminal to the transmitter’s screw terminals and configure the MC6 to read the Primary Variable (PV) of the transmitter, which is the digital output. The range to be calibrated is 0 °C to 100 °C (32 °F to 212 °F). Configure the MC6 to progress the input signal from 0 to 100 °C (32 °F to...