The Metrix HX0094 is a specialised adapter for SCOPIX oscilloscopes of the OX 9000 and OX 7000 series, developed for precise measurement of 4-20 mA current loops. It serves as accessories in the field of measurement technology and enables direct connection to industrial measurement systems, particularly in automation and process technology. The adapter features an integrated measurement resistor that converts the current signal into a proportional voltage signal, enabling measurement via the oscilloscope. The conversion ratio is 25 mV per ampere, allowing accurate conversion of the current signal into a measurable voltage.

Applications

The HX0094 is specifically designed for applications in industrial automation, where 4-20 mA current loops are the standard for signal transmission between sensors, actuators, and control systems. These current loops are robust against interference and suitable for transmission over long distances. The adapter enables direct analysis of these signals on the oscilloscope, which is beneficial for troubleshooting, maintenance, and calibration of process control systems.

Functions and Equipment in Detail

The adapter is equipped with a Ø 4 mm socket (banana) suitable for connection to standard measurement cables or direct connections to current loops. The connection is made via the Probix system, which supports Plug-and-Play recognition. Once connected to the oscilloscope, the device automatically recognises the adapter and adopts its technical specifications, including the conversion ratio. This reduces measurement errors and speeds up the measurement process. Additionally, relevant safety instructions and device information are displayed on the oscilloscope.

Technology Explained Simply

The integrated measurement resistor in the HX0094 converts the flowing current into a proportional voltage. At 4 mA, the voltage is 100 mV; at 20 mA, it is 500 mV. This voltage is measured by the oscilloscope and converted back into the corresponding current signal. The adapter is powered and calibrated directly via the oscilloscope, eliminating the need for external power sources or additional calibration equipment. The input isolation of the adapter increases safety during measurement.

Compatibility and Accessories

The HX0094 is designed exclusively for SCOPIX oscilloscopes of the OX 9000 and OX 7000 series. The connection is made via the Probix system, enabling direct communication between the oscilloscope and accessories. Compatible are also BNC or standard measurement cables, which can be connected to the banana socket. As suitable accessories, the use of opening terminals for AmpFLEX (black) – 10 pieces – is recommended to expand connection options.

Installation and Mounting

Installation is done by directly connecting the adapter to the Probix connector of the oscilloscope. The connection to the measurement object is made via the banana socket using an appropriate cable. The Plug-and-Play function ensures that no manual adjustment of measurement parameters is required. Power supply and calibration are performed automatically via the oscilloscope, simplifying handling.

Advantages in Operation

Using the HX0094 reduces measurement errors for 4-20 mA signals, as automatic recognition and calibration by the oscilloscope eliminate the need for manual input of values. Direct power supply via the oscilloscope reduces the number of required external devices. Input isolation increases safety when working with electrical installations. The application in automation and process technology is supported by accurate and reliable measurement of current signals.

Scope of Delivery

The scope of delivery includes the Probix adapter / Ø 4 mm socket and documentation.