Test Instrument for VDE 0100 / IEC 60364.6
    
A broad-range measuring device allows for use of the test instrument in all alternating and 3-phase electrical systems with voltages from 65 to 500 V and frequencies of 15.4 to 420 Hz.

Large Voltage and Frequency Ranges
A broad-range measuring device allows for use of the test instrument in all alternating and 3-phase electrical systems with voltages from 65 to 500 V and frequencies of 16 to 400 Hz.

Loop and Line Impedance Measurement
Measurement of loop and line impedance can be performed in the 65 to 500 V range. Conversion to short-circuit current is based on the respective nominal line voltage, insofar as the measured line voltage is within the specified range. PROFITEST MASTER measuring error is also taken into account for conversion. Outside of this range, short-circuit current is calculated on the basis of momentary line voltage and measured impedance. 

Measurement of Insulation Resistance Using Nominal Voltage, with Variable or Rising Test Voltage
Insulation resistance is usually measured with a nominal voltages of 500, 250 or 100 V. A test voltage which deviates from nominal voltage, and lies within a range of 20/50 to 1000 V, can be selected for measurements at sensitive components, as well as systems with voltage limiting devices.
Measurement can be performed with a constantly rising test voltage in order to detect weak points in the insulation and determine tripping voltage for voltage limiting devices.
Voltage at the device under test and any triggering/breakdown voltage appear at the test instrument’s display.

Standing-Surface Insulation Measurement
Standing-surface insulation measurement is performed with momentary line frequency and line voltage.

Low-Resistance Measurement
Bonding conductor resistance and protective conductor resistance can be measured with a test current of ≥ 200 mA DC, automatic polarity reversal of the test voltage and selectable direction of current flow. If the adjustable limit value is exceeded, an LED lights up.

Earthing Resistance Measurement
In addition to measurement of the overall resistance of an earthing system, selective measurement of the earthing resistance of an individual earth electrode is also possible, without having to disconnect it from the earthing system. A current clamp sensor available as an accessory is utilized to this end.
Furthermore, the PROFITEST MPRO and the PROFITEST MXTRA allow for battery powered earthing resistance measurements: 3/4- pole and earth loop resistance measurements. 

Universal Connector System
The interchangeable plug inserts and 2-pole plug-in adapter – which can be expanded to 3-poles for phase sequence testing – allows for use of the test instrument all over the world.

Display with Selectable Language
The LCD panel consists of a backlit dot matrix at which menus, setting options, measurement results, tables, instructions and error messages, as well schematic diagrams appear. The display can be set to the desired language depending on the country in which the test instrument is used: D, GB, I, F, E, P, NL, S, N, FIN, CZ or PL.

Operation
Device functions are selected directly with the help of a rotary selector knob. Softkeys allow for convenient selection of subfunctions and parameter settings. Unavailable functions and parameters are automatically prevented from appearing at the display.
The start and RCD tripping functions included directly on the instrument are identical to the functions of the two keys located on the test plug, allowing for easy measurement at difficult to access locations.
Schematic diagrams, measuring ranges and help texts cab be displayed for all basic functions and sub-functions.

Phase Tester
Protective conductor potential is tested after starting a test sequence and touching the contact surface for finger contact. The PE symbol appears at the display if a potential difference of more than 25 V is detected between the contact surface and the protective contact at the mains plug.

Error Indication

• The instrument automatically detects instrument-to-system connection errors, which are indicated in a connection pictograph.
• Errors within the electrical system (no mains or phase voltage, tripped RCD) are indicated at 3 LEDs and by means of popup windows at the tilting LCD panel.

Battery Monitoring and Self-Test
Battery monitoring is conducted while the instrument is subjected to an electrical load. Results are displayed both numerically and with a symbol. Test images can be called up one after the other, and LEDs can be tested during the self-test. The instrument is shut down automatically when the rechargeable batteries are discharged. A microprocessor controlled charging circuit is used to assure safe charging of rechargeable NiMH or NiCd batteries.

Data Entry at the RS 232 Port
Data can be read in via a barcode or RFID scanner connected to the RS 232 port, and comments can be entered with the help of the softkeys.

ETC User Software for PC
ETC offers a wide variety of support options for data acquisition and management.

• Amongst other things, the software acquires all important data for reports in accordance with DIN VDE 0100, part 600.
• Test reports (ZVEH) can be generated automatically.
• Distribution structures with electrical circuit and RCD data can be individually defined.
• Created structures can be saved to memory and loaded to the test instrument as required via the USB port.
• Data can be exported to Excel, CSV and XML formats.
• Device selection lists can be edited.

Data Interface
Measurement data are transmitted to a PC via the integrated USB port, at which they can be printed in report form and archived.

Software update
The test instrument is always kept current thanks to firmware which can be updated via the USB port. Software is updated during the course of recalibration by our service department, or directly by the customer.