1. పరిచయం
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. భద్రతా సమాచారం
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 voltagఇ ఉంది.
- 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.
- వాల్యూమ్ను కొలవడానికి ప్రయత్నించవద్దుtages or currents exceeding the instrument's specified limits.
3. ఉత్పత్తి ముగిసిందిview
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.

మూర్తి 3.1: ముందు view of the Benning IT 115 Installation Tester, showing the display, rotary switch, and control buttons.
కీలక భాగాలు:
- Graphic Display: Backlit screen for clear readings and connection diagrams.
- రోటరీ స్విచ్: Selects measurement functions (e.g., R_ISO, R_LOW, Z_L-N/L, Z_L-PE, FI/RCD, SETTINGS).
- నియంత్రణ బటన్లు: Navigation, TEST, ON/OFF, HELP, ESC.
- Test Lead Connections: Input terminals for test leads.
- LED సూచికలు: Green/red LEDs provide quick pass/fail indications.

చిత్రం 3.2: వెనుక view of the Benning IT 115, showing the battery compartment and safety warnings.
4. సెటప్
4.1. బ్యాటరీ సంస్థాపన మరియు ఛార్జింగ్
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.
- బ్యాటరీ కంపార్ట్మెంట్ కవర్ను సురక్షితంగా మూసివేయండి.
- 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. ఆపరేటింగ్ సూచనలు
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. పవర్ చేయడం ఆన్/ఆఫ్
నొక్కండి ఆన్/ఆఫ్ 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.
- రోటరీ స్విచ్ను తిరగండి 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.
- నొక్కండి పరీక్ష కొలతను ప్రారంభించడానికి బటన్.
- 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.
- రోటరీ స్విచ్ను తిరగండి R_LOW.
- Connect the test leads to the protective conductor.
- నొక్కండి పరీక్ష 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).
- రోటరీ స్విచ్ను తిరగండి R_E.
- Connect the optional earthing kit according to the on-screen diagram.
- నొక్కండి పరీక్ష బటన్.
- 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.
- రోటరీ స్విచ్ను తిరగండి Z_L-N/L or Z_L-PE.
- Connect the test leads to the appropriate points in the circuit.
- నొక్కండి పరీక్ష బటన్.
- 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.
- రోటరీ స్విచ్ను తిరగండి FI/RCD.
- Select the RCD type (AC, A, F) and nominal current using the navigation buttons.
- పరీక్ష లీడ్లను RCD ద్వారా రక్షించబడిన సర్క్యూట్కు కనెక్ట్ చేయండి.
- నొక్కండి పరీక్ష button to start the test sequence.
- The results (trip time, trip current, touch voltagఇ) ప్రదర్శించబడుతుంది.
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. సంtagఇ మరియు ఫ్రీక్వెన్సీ మెజర్మెంట్
కొలతలు AC/DC వాల్యూమ్tagఇ మరియు ఫ్రీక్వెన్సీ.
- వాల్యూమ్tagఇ పరిధి: 1 V - 550 V AC/DC (True RMS measurement).
- ఫ్రీక్వెన్సీ పరిధి: 0 Hz - 500 Hz.
- The instrument continuously monitors line voltage.
- పరీక్ష లీడ్స్ను వాల్యూమ్కి కనెక్ట్ చేయండిtagఇ మూలం.
- వాల్యూమ్tage and frequency will be displayed automatically.
5.9. Help Function
The integrated help function provides connection diagrams and guidance for each measurement. Press the సహాయం button to access it.
6. నిర్వహణ
6.1. శుభ్రపరచడం
Clean the instrument regularly with a soft, damp గుడ్డ. రాపిడి క్లీనర్లు లేదా ద్రావకాలు ఉపయోగించవద్దు.
6.2. బ్యాటరీ సంరక్షణ
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. ఫ్యూజ్ ప్రత్యామ్నాయం
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. ట్రబుల్షూటింగ్
- Instrument does not power on: Check battery charge level. Ensure batteries are correctly inserted.
- సరికాని రీడింగ్లు: 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.
- Display shows "OVERLOAD" or "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. స్పెసిఫికేషన్లు
| ఫీచర్ | స్పెసిఫికేషన్ |
|---|---|
| తయారీదారు | బెన్నింగ్ |
| మోడల్ సంఖ్య | 044104 |
| కొలతలు (L x W x H) | 11.5 x 10.3 x 23 సెం.మీ (4.5 x 4.1 x 9.1 అంగుళాలు) |
| బరువు | 1.01 కిలోలు (2.23 పౌండ్లు) |
| విద్యుత్ సరఫరా | 6 AA NiMH rechargeable batteries (included) |
| ఇన్సులేషన్ రెసిస్టెన్స్ రేంజ్ | 0.01 MOhm - 1000 MOhm |
| ఇన్సులేషన్ టెస్ట్ వాల్యూమ్tages | 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') |
| AC/DC వాల్యూమ్tagఇ పరిధి | 1 V - 550 V (True RMS) |
| ఫ్రీక్వెన్సీ రేంజ్ | 0 హెర్ట్జ్ - 500 హెర్ట్జ్ |
| వర్తింపు | DIN VDE 0100-600, IEC 60364-6, DIN VDE 0105-100, EN 50110, IEC |
| కనీస ఆపరేటింగ్ వాల్యూమ్tage | 50 వోల్ట్లు |
| గరిష్ట ఆపరేటింగ్ వాల్యూమ్tage | 600 వోల్ట్లు |
9. వారంటీ మరియు మద్దతు
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 webసైట్.
Always refer to the official Benning documentation for the most up-to-date warranty terms and support information.