UT283A - Measurement Uni-T - Free user manual and instructions

Product Type	Digital Multimeter
Display	6000 counts LCD with backlight
DC Voltage	600mV/6V/60V/600V/1000V ±0.5%
AC Voltage	6V/60V/600V/750V ±0.8%
DC Current	600µA/6000µA/60mA/600mA/10A ±1.0%
Resistance	600Ω/6kΩ/60kΩ/600kΩ/6MΩ/60MΩ ±0.8%
Capacitance	40nF/400nF/4µF/40µF/400µF/4mF ±3.0%
Frequency	10Hz~10MHz ±0.1%
Continuity	Audible beep < 50Ω
Diode Test	Yes
Dimensions	180 x 87 x 47 mm
Weight	342 g (with battery)
Power	9V battery (6F22)
Safety Rating	CAT II 1000V, CAT III 600V
Accessories	Test leads, battery, manual, holster
Features	Data hold, relative mode, auto power off, low battery indicator
Care and Cleaning	Wipe with dry cloth; do not use solvents
Battery Replacement	9V alkaline battery (6F22)
Spare Parts and Repairability	Contact Uni-T service for replacement parts

Frequently Asked Questions - UT283A Uni-T

What type of battery does the UT283A use?

The UT283A uses a standard 9V battery (6F22). To replace, open the battery compartment and insert a new battery observing polarity.

How do I measure AC voltage with the UT283A?

Set the rotary switch to the AC voltage range (V~). Insert the black lead into COM and the red lead into VΩ. Connect the test leads across the source. Read the displayed value.

What is the maximum voltage the UT283A can measure?

For DC voltage, the maximum is 1000V. For AC voltage, the maximum is 750V. Exceeding these limits may damage the meter.

Does the UT283A have an auto power off feature?

Yes, the UT283A automatically powers off after approximately 15 minutes of inactivity to conserve battery life.

How do I perform a continuity test?

Set the rotary switch to the continuity (beep) symbol. Insert the test leads. If the resistance is less than 50Ω, the meter will beep.

What is the accuracy of the UT283A for DC voltage?

The DC voltage accuracy is ±0.5% of reading plus 2 digits for all ranges up to 1000V.

Can I measure capacitance with the UT283A?

Yes, the UT283A measures capacitance up to 4mF. Set the rotary switch to the capacitance (F) position.

Is the UT283A safe for use in CAT III environments?

Yes, the UT283A is rated CAT II 1000V and CAT III 600V, making it suitable for most residential and industrial measurements.

How do I clean the UT283A?

Use a dry cloth to wipe the exterior. Do not use abrasive cleaners or solvents. Keep the input terminals clean.

What accessories are included with the UT283A?

The UT283A comes with test leads, a 9V battery, a user manual, and a protective holster.

USER MANUAL UT283A Uni-T

UT283A is a handheld multi-functional device designed to measure and analyze single-phase power systems. This portable S class device can measure amplitude, phase, harmonics, current, voltage, then record results in SD card for further analysis and export. This product is suitable for professionals working in electrical power, medical, transportation, telecommunication, and other industrial areas.

● Trend/event capture
● Harmonics/inrush current measurement
● File management through USB interface
● Flick measure (PST/PLT values)
- User friendly interface
- Multimeter functions
- Scope functions including waveform display
● 3.5 inches 64K color TFT LCD display
● THD (Total Harmonic Distortion) function
● Long-term monitoring

SPECIFICATIONS

	Range UT283A
Voltage (V)	10V~1000V AC/DC	±0.5%Udin
AC current (A)	10A/100A/1000A	±0.5%f.s.
Frequency (Hz)	40~70Hz	±50mHz
Power (W)	>15%S	±1%S
Power factor	0~1	±0.02
Energy (Wh)	0~9999MWh	±1.5%rdg
Crest factor	1 to 10	±5%
Voltage harmonics or inter-harmonics	Um≥3%Unom (1~51th, step 0.5th)	±5%Urms
	Um<3%Unom (1~51th, step 0.5th)	±0.15%Unom
Current harmonics or inter-harmonics	Im≥10%Inom (1~51th, step 0.5th)	±5%Irms
	Im<10%Inom (1~51th, step 0.5th)	±0.5%Inom
Power harmonics	(1~51th, step 1th)	Calculated based on voltage and current amplitude and phase accuracy
Transients	±6000V Peak, Fsample=2MHz	±5%rdg.±5%f.s
Dip/swell/interrupt	0~1000V AC	Udin±1%
AC inrush current (A)	10A/100A/1000A	±1%f.s
Resistance (Ω)	600Ω/6kΩ/60kΩ/600kΩ/6MΩ/60MΩ	±(1%+3)
Capacitance (F)	60nF/600nF/6μF/60μF/600μF	±(4%+20)
Features
True RMS		√
Harmonic analysis	Up to 51th	√
Flick measure	10 minutes, PST and PLT values	√
Voltage ratio		√
Current ratio		√
Event capture		√
Trend capture		√
Data logging	8GB	√
USB interface		√
Backlight adjustment		√
Low battery indication		√
Input protection		√

GENERAL CHARACTERISTICS

Power	Li-ion battery: 7.4V 3600mAh
Display	70mm x 52mm; 3.5 inches 64K color TFT LCD (320 x 240)
Product color	Red and grey
Product net weight	808.4g
Product size	199mm x 118mm x 49mm
Standard accessories	Power adaptor, power cord, test leads, test probes, alligator clips, current clamp (10A/100A/1000A), USB interface cable, PC software CD, SD card (8GB)
Standard individual packing	Gift box, carrying bag, English manual
Standard quantity per carton	4pcs
Standard carton measurement	665mm x 350mm x 305mm
Standard carton gross weight	24.2kg