UT225A - Measurement Uni-T - Free user manual and instructions
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| Product Type | Digital Clamp Meter |
| Model | UT225A |
| Brand | Uni-T |
| DC Voltage Range | 600 V |
| AC Voltage Range | 600 V |
| AC Current Range | 600 A |
| Resistance Range | 60 MΩ |
| Frequency Range | 10 Hz – 10 MHz |
| Display | LCD, 5999 counts |
| Safety Rating | CAT III 600 V |
| Power Supply | 9 V battery (6F22) |
| Auto Power Off | Yes, approx. 15 minutes |
| Dimensions | 195 x 75 x 35 mm |
| Weight | Approx. 300 g (including battery) |
| Operating Temperature | 0 °C – 40 °C |
| Storage Temperature | -10 °C – 50 °C |
| Additional Functions | Data hold, relative mode, continuity test, diode test |
| Accessories Included | Test leads, temperature probe, battery, manual |
| Warranty | 1 year |
Frequently Asked Questions - UT225A Uni-T
How do I measure AC current with the UT225A?
Set the rotary switch to the AC current range (A~). Clamp the jaw around a single conductor. The LCD will display the current value. Ensure the conductor is centered for accurate reading.
What is the maximum current I can measure?
The UT225A can measure up to 600 A AC. Do not exceed this limit to avoid damage.
How do I replace the battery?
Turn off the meter and remove the test leads. Open the battery compartment at the back. Replace the 9V battery (6F22 type) with a new one. Close the compartment securely.
What does 'CAT III 600V' mean?
It indicates the meter is rated for CAT III installations up to 600 V, suitable for distribution boards, fixed installation circuits, and industrial equipment.
Can I measure DC current with the UT225A?
No, the UT225A is designed for AC current only. For DC current, consider a different model like UT203+.
How do I use the data hold function?
Press the HOLD button to freeze the reading on the display. Press again to release. Useful for capturing readings in hard-to-see areas.
What is the accuracy for voltage measurements?
For DC voltage: ±(0.8%+3 digits). For AC voltage: ±(1%+3 digits). Check the manual for full specifications.
Does the UT225A have a backlight?
Yes, it has a backlight for easy reading in dim environments. Press the backlight button to toggle.
How do I clean the meter?
Disconnect all inputs. Wipe the casing with a damp cloth and mild detergent. Do not use abrasives or solvents. Keep the jaws clean.
What is the auto power off time?
The meter automatically turns off after approximately 15 minutes of inactivity to save battery. Press any button to wake it.
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USER MANUAL UT225A Uni-T
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Product information
Brand : Uni-T
Model : UT225A
Category : Measurement