DIT-120 - Measurement Sonel - Free user manual and instructions
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| Type of product | Digital Insulation Tester |
| Model | DIT-120 |
| Brand | Sonel |
| Dimensions | 220 x 102 x 58 mm |
| Weight | 0.6 kg (including batteries) |
| Power supply | 4 x AA alkaline batteries (1.5V) |
| Display | LCD with backlight, 9999 counts |
| Insulation resistance range | 0.1 MΩ to 10 GΩ |
| Test voltages | 50V, 100V, 250V, 500V, 1000V |
| Continuity test | 0.1 Ω to 10 kΩ |
| Voltage measurement | AC/DC up to 600V |
| Safety rating | CAT III 600V, double insulation |
| Standards compliance | IEC 61010-1, EN 61557 |
| Auto power off | Yes, after 10 minutes of inactivity |
| Data hold | Yes |
| Operating temperature | -10°C to +50°C |
| Storage temperature | -20°C to +60°C |
| Humidity | 20% to 80% RH non-condensing |
| Accessories included | Test leads, alligator clips, carrying case, manual |
| Maintenance | Clean with soft damp cloth; no solvents |
| Repairability | Spare parts available; service by authorized centers |
Frequently Asked Questions - DIT-120 Sonel
What is the maximum insulation resistance the DIT-120 can measure?
The Sonel DIT-120 can measure insulation resistance up to 10 GΩ (10,000 MΩ) with test voltages from 50V to 1000V.
How do I replace the batteries in the DIT-120?
Turn off the meter and disconnect all test leads. Open the battery compartment on the back, remove old batteries, and insert four new AA alkaline batteries observing polarity. Close the compartment securely.
Does the DIT-120 have a backlight?
Yes, the DIT-120 features a backlit LCD display for easy reading in low-light conditions. Press the backlight button to turn it on/off.
What safety category does the DIT-120 comply with?
The device is rated CAT III 600V and has double insulation, making it suitable for use on distribution circuits and equipment.
Can the DIT-120 measure voltage?
Yes, it can measure AC and DC voltage up to 600V. Select the voltage function using the rotary switch.
How do I perform a continuity test?
Turn the rotary switch to the continuity/Ω position. Connect the test leads to the circuit. A buzzer sounds when resistance is below ~30Ω.
What is the auto-off feature?
The DIT-120 automatically turns off after 10 minutes of inactivity to save battery life. Press any button to wake it up.
Does the DIT-120 come with a calibration certificate?
Yes, new units are shipped with a factory calibration certificate. For recalibration, contact Sonel or an authorized service center.
Can I use rechargeable batteries?
Yes, you may use NiMH rechargeable batteries (AA size). Note that the battery indicator may be less accurate compared to alkaline batteries.
How do I clean the DIT-120?
Use a soft, damp cloth with mild soap if needed. Do not use solvents or abrasive cleaners. Avoid getting moisture inside the device.
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