General
Display backlighting
Integrated lamp
Magnetic shock protection housing

The TRMS AC / DC digital multimeter from Metrix, type MTX203-Z, is a compact and lightweight measuring instrument for use in demanding field applications. It features a robust housing with a magnetic shock protection sleeve, allowing the device to be attached to metallic surfaces for hands-free operation. The 6000-digit display is illuminated, ensuring good readability even in poor lighting conditions. An integrated flashlight supports use in dark areas. Automatic range selection ensures simple and precise measurements without manual settings.

Applications
This multimeter is designed for electricians, maintenance technicians, and craftsmen who need to check voltages, currents, resistances, capacitances, temperatures, and diodes in daily operations. It is suitable for installations, renovation work, and maintenance of electrical systems in office and commercial buildings. The VLowZ function helps avoid measurement errors caused by stray voltages, which is particularly important when testing computer networks or other electronic systems. Non-contact voltage detection (NCV) provides additional safety by detecting live conductors without physical contact.

Functions and Equipment in Detail
The device offers a wide range of measurement functions: AC and DC voltage measurement up to 1000 V (DC) and 750 V (AC), current measurement from 10 µA to 10 A, resistance measurement from 1 Ω to 60 MΩ, temperature measurement with Type-K thermocouple from -55 °C to +1200 °C, capacitance measurement from 1 nF to 100 mF, as well as diode testing and audible continuity testing. Additional functions include HOLD, relative measurement (ΔREL), and the NCV function. The display changes color from blue to red when NCV detection identifies a dangerous voltage of 230 V.

Technology Explained Simply
The TRMS measurement method (True Root Mean Square) enables precise measurements even with distorted or non-sinusoidal signals, which is relevant for modern electronic devices. The 6000-digit display provides high resolution, making even small changes in the measured value visible. The magnetic shock protection sleeve and the patented Multifix system allow flexible mounting of the device on enclosures, belts, or doors. The probe holder with 19 mm spacing facilitates measurements at sockets, even with child safety features. The adjustable folding stand allows the device to be positioned at various angles for optimal readability.

Compatibility and Accessories
The multimeter is supplied with a Type-K thermocouple sensor for temperature measurements. Suitable accessories include test leads with 4 mm straight/angled connectors (CAT IV, 1000 V, 15 A), alligator clips, test probes, a carrying case, and a multi-purpose magnetic holder (Multifix). These components can be purchased separately to extend the multimeter’s functionality.

Mounting and Installation
The device is ready for immediate use. The magnetic shock protection sleeve allows quick attachment to metallic surfaces. The test probes are inserted into the designated sockets. Operation is performed via a function selector switch and function keys on the front panel. The display is clearly structured, and the keys are designed for quick operation.

Advantages in Operation
The combination of compact design, high measurement accuracy, automatic range selection, and practical auxiliary functions such as the integrated flashlight and NCV detection makes this multimeter a reliable tool for daily use. The IP54 protection rating ensures protection against dust and splashing water, enabling use outdoors or in damp environments. The safety category 600 V CAT III meets safety requirements for measurements in electrical systems up to 600 V. The operating temperature of the device ranges from -20 °C to +55 °C.

Scope of Delivery
The device is delivered with the following components: TRMS AC / DC digital multimeter, Type-K thermocouple probe, magnetic shock protection sleeve, and operating instructions.

Note: Batteries are not included in the scope of delivery.