UT213A/B/C INSTRUCTIONS 1Il. Safety Operation Criterion. IV. Electrical Symbols.. V. External Structure. VII. Functions of Keys. VIII. Technical Indexes. 1. General Specification.. 2. Environmental Limitation. 3. Electrical Specification... IX. Measuring Operation Instruction . Measuring of AC Current.. . Measuring of DC Current. . Measuring of AC Voltage. . Measuring of DC Voltage. . Measuring of Resistance. . Measuring of Conductivity. . Measuring of Diode.. . Measuring of Capacitance .
UT213A/B/C INSTRUCTIONS l. Overview UT213A/B/C series |s a handheld clamp meter in 4,000 counts 3 3/4 digit true virtual value. The circuit design of the complete machine takes the large scale integrated circuit Z/A analog digital converter as cots, and the full-tangs over-pad protection cultural and a unique appearance design make it a dedicated electron-technical instrument.
UT213A/B/C INSTRUCTIONS 4.Before measuring, the function switch must be placed at the correct location and gears of range switch are not permitted to change during measuring, 80 as to prevent the clamp meter damage. 5.D0 not apply DCEOOVIACB00V or above voltage between the camp meter terminal and grounding, s0 as o prevent electric shock and clamp meter damage. 6.
UT213A/B/C INSTRUCTIONS V. External Structure (See Figure 1) 1.Clamp head It is the sensing device for AC/DC measurement, which convert the current Into voltage. 2.Clamp Iris a kind of safety design to protect the operators’ hands from dangerous Zone. 3.Clamp head trip handle Press the trigger to open the clamp head and release the trigger to allow automatic closing of It. 4.Knob switch For selection of measurement function tap positions. 5.Function keys For selection of basic functions. 6.
UT213A/B/C INSTRUCTIONS VII. Functions of Keys 1. SELECT Click once to select the tap positions. 2.HOLD Click once to ante reading-hold measuring mode; click once again to exit. Hold the key to open back light. For UT213A/B/C, hold again within 15s to close back light or wait for 158 for automatic closing. 3.
UT213A/B/C INSTRUCTIONS IX. Measuring Operation Instructions 1. Measuring of AC Current {See Figure 2) 1) Switch to the AC current gear position, press the trigger to open the clamp head, use the clamp head to pluck up the conductor to be tested, and release the trigger slowly until the clamp head is fully closed.
UT213A/B/C INSTRUCTIONS 2. Measuring of DC Current (Only for Figure 3) 1) Switch to the DC current gear position. If the LCD doesn't display 0, hold REL key for resetting. After measurement of high current tap position, the LCD may display basic number since the clamp head will maintain permanence for a wheels. 2) Press the trigger to open the clamp head, use the clamp head to pick up the conductor to ba tested, and release the trigger slowly till the clamp head Is fully closed.
UT213A/B/C INSTRUCTIONS 3. Measuring of AC Voltage (See Figure 4) 1) Insert the red prob Into “V™ Jack, and black one into “COM" jack, 2) Switch o AC voltage gear position, press SELECT key to select AC voltage measurement, and connect in parallel the prob to the power supply or load to be tested. 3) Read the AC voltage value directly from the display. Caution: @ Do not input voltage of higher than AC 600V. It is possible to measure higher voltage, but at the risk of meter damage.
UT213A/B/C INSTRUCTIONS 4. Measuring of DC Voltage (See Figure 5) 1) Insert the red probe into “V* jack, and black one into “COM” jack, 2) Switch to DC voltage gear position ¢, press SELECT key to select DC voltage measurement, and connect the probe to the power supply or load to be tested in parallel. 3) Read the DC voltage value directly from the display. Caution: ® Do not input voltage of higher than DC 600V. It is possible to measure higher voltage, but at the risk of mater damage.
UT213A/B/C INSTRUCTIONS 5. Measuring of Resistance (Ses Figure 6) 1} Insert the red probe into “Q" jack, and black one Into "COM Jack. 2) Switch to “0” gear position, press SELECT key to select “Q" measurement, and connect In parallel the probe to both ends of resistance to be tested. 3) Read the resistance value directly from the display. A caution: ® If the tested resistance pan circuit or the resistance value exceeds the maximum measurement ranges, it will display “OL".
UT213A/B/C INSTRUCTIONS 6. Measuring of Conductivity {See Figure 7) 1) Insert the red probe into “Q" jack, and black one Into “COM” Jack. 2) Switch to * gear position, press SELECT key to select circuit on-off measurement, and connect in parallel the probe to the load to be tested.
UT213A/B/C INSTRUCTIONS 7. Measuring of Diode (See Figure 8) 1) Insert the red prob (polarity: Into *Q" Jack, and black one (polarity: into “COM” jack. 2) Switch to “$F" gear position, press SELECT key to select doled measurement, and read the approximate forward PN junction voltage of the tested diode directly from the display. As for silicon PN Junction, the normal genre Is generally considered as 500mV-800mV. Caution: ® In case of pan circuit or reverse polarity of the tested diode, It will display “OL".
UT213A/B/C INSTRUCTIONS 8. Measuring of Capacitance (See Figure 9) 1) Insert the red probe into “Q" jack, and black one into “COM” jack. 2) Switch to “4"gear position, and connect In parallel the trope to the two ends of capacitance 1o be tested. 3) Read the capacitance value of the tested cultural load directly from the display. It is suggested to use testing stub for capacitance measurement, which «can reduce the Influence of distributed capacitance.
UT213A/B/C INSTRUCTIONS 9. Measuring of Frequency (See Figure 10) 1} Insert the red probe into “Hz” jack, and black one Into “"COM" Jack. 2) Switch to "Hz" gear position, and connect in parallel the probe to the signal source to be tested. 3} Reed the measured frequency values directly from the display. Caution: ® The measurement shall nest the conditions of input amplitude a: UT213A: 10Hz-1MHz, amplitude <20Vims; amplitude <20Vms; 100KHz-1MH-200mViTs < input amplitude < victims.
UT213A/B/C INSTRUCTIONS 12. Power Supply Gear position{OFF) It Is for Instrument switching-off. 13. Auto OFF Function Ware there Is no operation to knob switch or keys within the set shutdown time (default as minim for UT213A and minim for UT213B/C), the LCD will fade and the Instrument will enter micro-power consumption sleep state. Press SELECT key, and the instrument will be waken up. Wuhan pressing SELECT key to start the instrument, the Auto-OFF function will be inhibited. X.
UT213A/B/C INSTRUCTIONS Instructions are subject to change without prior notice. 35 UT213A/B/C INSTRUCTIONS Manufacturer: Uni-Trend Technology (China) Limited No 6, Gong Ye Bei 1st Road Songhai Lake National High-Tech Industrial Development Zone, Guangdong Clay Guangdong Province China Postal Code:523 808 Headquarters: Unitarian Group Limited Marmara, 9/F, Nan: Jflnfl Plaza.
