1. Introducció
This manual provides essential instructions for the safe and effective operation of the Benning IT 115 True RMS Installation Tester. This multifunction device is designed for testing electrical installations in accordance with international standards such as DIN VDE 0100-600, IEC 60364-6, DIN VDE 0105-100, and EN 50110. Please read this manual thoroughly before using the instrument.
2. Informació de seguretat
WARNING: Electrical shock hazard. Improper use of this instrument can result in injury or death. Always follow safety precautions.
- Always disconnect all test leads and switch off the instrument before opening the battery/fuse cover.
- Do not open the battery compartment if hazardous voltage està present.
- Ensure the instrument is in good working condition before use. Do not use if damaged.
- Observe all local and national safety regulations for electrical work.
- Only use the provided accessories or approved replacements.
- No intenteu mesurar el voltages or currents exceeding the instrument's specified limits.
3. Producte acabatview
The Benning IT 115 is a robust installation tester featuring a backlit graphic display and intuitive controls. It is designed for comprehensive electrical installation testing.

Figura 3.1: Frontal view of the Benning IT 115 Installation Tester, showing the display, rotary switch, and control buttons.
Els components clau inclouen:
- Graphic Display: Backlit screen for clear readings and connection diagrams.
- Interruptor rotatiu: Selects measurement functions (e.g., R_ISO, R_LOW, Z_L-N/L, Z_L-PE, FI/RCD, SETTINGS).
- Botons de control: Navigation, TEST, ON/OFF, HELP, ESC.
- Test Lead Connections: Input terminals for test leads.
- Indicadors LED: Green/red LEDs provide quick pass/fail indications.

Figura 3.2: posterior view of the Benning IT 115, showing the battery compartment and safety warnings.
4. Configuració
4.1. Instal·lació i càrrega de la bateria
The Benning IT 115 operates on 6 rechargeable NiMH AA batteries. A charger is included for convenience.
- Ensure the instrument is switched off and all test leads are disconnected.
- Open the battery compartment cover on the rear of the device (refer to Figure 3.2).
- Insert the 6 NiMH AA batteries, observing correct polarity.
- Tanqueu bé la tapa del compartiment de la bateria.
- Connect the charger to the instrument's charging port and to a suitable power outlet to charge the batteries. The integrated battery charging function will manage the charging process.
NOTE: Do not use non-rechargeable alkaline batteries with the integrated charging function.
4.2. Connecting Test Leads and Accessories
The device comes with a set of accessories for various measurements.

Figure 4.1: Included accessories: carrying case, test leads, probes, crocodile clips, and rechargeable batteries.
- Connect the test cable with the protective contact plug for standard outlet measurements.
- For other measurements, use the 3-conductor universal cable (1.5 m length) with the provided test probes or crocodile clips as required by the specific test.
- Ensure all connections are secure before performing any tests.
5. Instruccions de funcionament
The Benning IT 115 offers a range of measurement functions accessible via the rotary switch and control buttons. The graphic display provides clear readings and a help function with connection diagrams.
5.1. Encès / apagat
Premeu el botó ON/OFF button to switch the instrument on or off.
5.2. Insulation Resistance Measurement (R_ISO)
Measures insulation resistance between 0.01 MOhm and 1000 MOhm.
- Gireu el commutador giratori a R_ISO.
- Select the desired nominal test voltage (50V, 100V, 250V, 500V, 1000V) using the navigation buttons.
- Connect the test leads to the circuit under test as indicated by the on-screen help diagram.
- Premeu el botó PROVA botó per iniciar la mesura.
- The result will be displayed, and the green/red LEDs will indicate pass/fail based on set limits.
5.3. Low-Ohm Resistance Measurement (R_LOW)
Measures low resistance from 0.01 Ohm to 2000 Ohms, typically for protective conductor continuity.
- Gireu el commutador giratori a R_LOW.
- Connect the test leads to the protective conductor.
- Premeu el botó PROVA button. The instrument uses a 200 mA test current with polarity reversal and a 7 mA test current for continuity.
- Observe the displayed resistance value.
5.4. Earth Resistance Measurement (R_E)
Measures earth resistance using the 3-conductor method (requires optional earthing kit 044113).
- Gireu el commutador giratori a R_E.
- Connect the optional earthing kit according to the on-screen diagram.
- Premeu el botó PROVA botó.
- The earth resistance value will be displayed.
5.5. Loop and Line Impedance Measurement (Z_L-N/L, Z_L-PE)
Measures loop impedance (0.01 Ohm - 10 kOhm) for fault current path and short-circuit current determination.
- Line Impedance (Z_L-N/L): Measures impedance between Line and Neutral or Line and Line, including voltage drop and short-circuit current.
- Loop Impedance (Z_L-PE): Measures impedance between Line and Protective Earth without tripping RCD/FI, including short-circuit current.
- Gireu el commutador giratori a Z_L-N/L or Z_L-PE.
- Connect the test leads to the appropriate points in the circuit.
- Premeu el botó PROVA botó.
- The impedance value and calculated short-circuit current will be displayed.
5.6. RCD/FI Test
Tests Residual Current Devices (RCDs) / Fault Current Circuit Breakers (FI) of types AC, A, and F, including standard and delayed (S) types.
- Tests include automatic test sequences, touch voltage, trip time, and trip current (ramp test).
- Features an RCD/FI analysis function.
- Gireu el commutador giratori a FI/RCD.
- Select the RCD type (AC, A, F) and nominal current using the navigation buttons.
- Connect the test leads to the circuit protected by the RCD.
- Premeu el botó PROVA button to start the test sequence.
- The results (trip time, trip current, touch voltage) es mostrarà.
5.7. Rotary Field Test
Determines the phase sequence in three-phase systems.
- Turn the rotary switch to the rotary field test setting (refer to the device's specific icon).
- Connect the test leads to the three phases.
- The display will indicate the phase sequence.
5.8. Voltage i Mesura de freqüència
Mesures AC/DC voltage i freqüència.
- Voltage Rang: 1 V - 550 V AC/DC (True RMS measurement).
- Interval de freqüència: 0 Hz - 500 Hz.
- The instrument continuously monitors line voltage.
- Connecteu els cables de prova al voltage font.
- El voltage and frequency will be displayed automatically.
5.9. Help Function
The integrated help function provides connection diagrams and guidance for each measurement. Press the AJUDA button to access it.
6. Manteniment
6.1. Neteja
Clean the instrument regularly with a soft, damp tela. No utilitzeu netejadors abrasius ni dissolvents.
6.2. Cura de la bateria
Recharge the NiMH batteries when the low battery indicator appears. If the instrument will not be used for an extended period, it is recommended to fully charge the batteries and store the device in a cool, dry place.
6.3. Substitució de fusibles
The instrument uses a 0.315 A fuse (part number 757211). If a fuse blows, ensure the instrument is off and disconnected from all circuits before replacing it. Only use fuses of the specified type and rating.
7. Solució De Problemes
- L'instrument no s'encén: Check battery charge level. Ensure batteries are correctly inserted.
- Lectures inexactes: Ensure test leads are properly connected and not damaged. Verify the correct measurement function is selected.
- RCD/FI test fails: Check RCD type and nominal current settings. Ensure the RCD itself is functional.
- La pantalla mostra "SOBRECÀRREGA" o "OL": The measured value exceeds the instrument's range for the selected function. Disconnect immediately.
If problems persist, contact Benning customer support or a qualified service technician.
8. Especificacions
| Característica | Especificació |
|---|---|
| Fabricant | Benning |
| Número de model | 044104 |
| Dimensions (L x A x A) | 11.5 x 10.3 x 23 cm (4.5 x 4.1 x 9.1 polzades) |
| Pes | 1.01 kg (2.23 lliures) |
| Font d'alimentació | 6 AA NiMH rechargeable batteries (included) |
| Gamma de resistència d'aïllament | 0.01 MOhm - 1000 MOhm |
| Prova d'aïllament Voltages | 50V, 100V, 250V, 500V, 1000V |
| Low-Ohm Resistance Range | 0.01 Ohm - 2000 Ohms (200mA test current) |
| Loop/Line Impedance Range | 0.01 Ohm - 10 kOhm |
| RCD/FI Test Types | AC, A, F (Standard and Delayed 'S') |
| Volum AC / DCtage Rang | 1 V - 550 V (True RMS) |
| Interval de freqüència | 0 Hz - 500 Hz |
| Compliment | DIN VDE 0100-600, IEC 60364-6, DIN VDE 0105-100, EN 50110, IEC |
| Vol operatiu mínimtage | 50 Volts |
| Volum de funcionament màximtage | 600 Volts |
9. Garantia i Suport
Benning provides a 1-year availability for spare parts for the IT 115 Installation Tester. For technical support, service, or warranty claims, please contact your local Benning distributor or visit the official Benning weblloc.
Always refer to the official Benning documentation for the most up-to-date warranty terms and support information.





