The UNI-T UT203+ Digital Clamp Meter (True RMS) is an essential tool for electricians and technicians who need to measure high current without breaking the circuit. At Electrapac, we recommend this upgraded "+" series model for the Bangladesh market because it handles both AC and DC current up to 400A, making it perfect for solar power systems, automotive diagnostics, and industrial maintenance.

Product Overview

The UT203+ is a 4000-count digital clamp meter that features True RMS measurement, ensuring accurate readings even when measuring non-sinusoidal waveforms found in modern electronic power supplies. Its standout feature is the Full-scale false detection protection, which protects the meter from damage if you accidentally attempt to measure high voltage while on the wrong setting (up to 600V surge protection). 

Key Features for Electrapac Customers

• AC & DC Current Measurement: Unlike basic clamp meters that only measure AC, the UT203+ uses a Hall Effect sensor to measure DC current, which is critical for Solar Panel (PV) arrays and Battery/IPS systems.

• True RMS Accuracy: Provides precise measurements for complex loads like VFDs (Variable Frequency Drives) and switching power supplies where standard meters often give false low readings.

• Large Jaw Opening: The 28mm jaw allows you to clamp around thick industrial cables easily without needing to disconnect them.

• NCV (Non-Contact Voltage) Detection: Features a built-in sensor that allows you to detect the presence of live AC voltage behind walls or in sockets without any lead contact.

• Auto-Range with Data Hold: Automatically selects the best measurement range for you, while the "Hold" button lets you freeze a reading when working in tight, dark spaces.

How to Measure Current Correctly

To get an accurate reading with your Electrapac clamp meter, follow the "Single Wire" rule:

1. Select the Mode: Turn the dial to the 40A or 400A setting (choose AC or DC based on your source).

2. The Single Wire Rule: You must clamp around only one wire (either Live or Neutral). If you clamp around a whole power cord (containing both wires), the magnetic fields will cancel each other out, and the meter will show 0.00.

3. Zeroing (for DC): When measuring DC current, always press the "REL" (Relative/Zero) button before clamping to eliminate the earth's background magnetic interference.

Primary Applications

• Solar Power Installation: Measuring the DC output from solar panels and charge controllers.

• Automotive Repair: Checking for "parasitic draw" in car batteries or testing alternator output.

• Industrial Electrical: Monitoring the load on AC motors and three-phase distribution boards.

• HVAC Maintenance: Testing the current draw of air conditioner compressors and fans.

• IPS & UPS Testing: Verifying the charging and discharging current of backup battery banks.

Why Shop at Electrapac?

We source our UNI-T UT203+ Clamp Meters to ensure they are the original "+" upgraded versions with enhanced safety protections. Visit us at www.electrapac.com for the professional diagnostic gear that keeps your high-power systems running safely.