UNI-T UT593 Multifunction Tester

We provide a 3-year warranty on this product.

The UNI-T UT593 multifunctional inspection device is a professional tester designed to carry out comprehensive checks and inspections of electrical installations. The tester complies with the IEC 61010 safety standard (CAT III 300 V) and the ČSN EN 61557 standard. It combines all the key functions required for safety measurements in domestic and industrial electrical installations within a single compact unit. The unit features a new design, with a large multifunctional display featuring a 50-division bar graph. It has a durable casing and new analogue, digital and microprocessor circuits. The UT595 is the ideal tool for the maintenance, testing and inspection of protective components in electrical installations for every electrician and inspection technician.


Product specifications:

- comprehensive measurements: RCD trip times, impedance, short-circuit loop impedance, insulation resistance, frequency, AC voltage, circuit continuity, phase rotation direction, RCD trip current
- RCD testing: support for both standard and selective RCDs (AC and A types)
- Loop measurement without RCD tripping: a special mode prevents unwanted RCD tripping during the test
- Clear display: large backlit LCD display (125 x 37 mm) with dual readout of measured values
- Backlight: white backlight for improved visibility
- Display shows: operating modes, values, units and symbols
- Robust design: durable casing with a protective cover, suitable for field work
- Certification: CE, ensuring compliance with safety standards
- Maximum display capacity: LCD display: 9999 digits with an analogue bar graph for detailed readings
- Insulation resistance test: insulation resistance test 250 V~1000 V DC
- Earth resistance continuity test: 200 mA test for earth resistance continuity
- Loop impedance/PFC/PSC test: comprehensive testing of loop impedance and potential faults/current
- Function to lock specific test parameters
- Residual current device (RCD) tripping time test: measures the RCD tripping time with one-button data logging
- Test modes: full-wave, half-wave and countdown (30 s) modes for flexibility
- option to change the phase angle to 0°/180° to detect the fastest trip time of residual current devices
- tripping current test: measures the tripping time of the X2 residual current device and the trip current of the residual current device
- Phase sequence and missing phase test: ensures correct phase connection
- Automatic AC/DC voltage check and test
- Connection check: displays connection status in real time
- Automatic switch-off: saves battery life thanks to the automatic switch-off function
- An indispensable tool for every inspection technician


Technical specifications:

Insulation resistance measurement:
- rated open-circuit test voltage: 250 V ±10 per cent or 500 V ±10 per cent or 1,000 V ±10 per cent
- measurement range: 0.05 to 250 M?, or 0.05 to 500 M?, or 0.05 to 1000 M?
- rated measuring current at a load of 250 k?, 500 k? or 1 M?: 0.9 mA to 1.1 mA
- short-circuit current: <1.8 mA
- Measurement accuracy in the range 0.05 M? to 1000 M?: ±(5% + 5)

- Low-resistance continuity test range 0.00 ? to 199 ? ±(2% + 5)
- Test current 0.00 to 2 ?: >200 mA ?

Line impedance (?):
- Measurement ranges: 0.01 ? to 2000 ?
- Accuracy: ±(5% + 5)
- Operating voltage (frequency): 230 V (45 Hz to 65 Hz)
- Measurement current: 20 A
- PFC test: 0 kA to 26 kA

Loop impedance (?):
- measurement ranges: 0.01? to 2000?
- accuracy: ±(5%+5)
- operating voltage (frequency): 195V to 253V (45Hz to 65Hz)
- Measurement current: 20 A
- PFC test: 0 kA to 26 kA

Loop impedance without cut-off mechanism (?):
- Measurement ranges: 1.00 ? to 2,000 ?
- Accuracy: ±(5%+5)
- Operating voltage (frequency): 195 V to 253 V (45 Hz to 65 Hz)
- Measuring current: 15 mA
- PFC test: 0 kA to 26 kA

Measurement of residual current devices:
- measurement voltage: 195 V to 253 V ±10 per cent, frequency 45 Hz to 65 Hz
- Measuring current selection I: 10 mA / 30 mA / 100 mA / 300 mA / 500 mA
- Measuring current accuracy at 220 V AC: ± (10% + 2)
- Time measurement range at current 1*I, ?n: 0 to 2000 ms
- Time measurement range at current 1*I, ?n: 0 to 500 ms (with countdown function)
- Time measurement range at 1*I current, ?n: 0 to 300 ms
- Time measurement range at 2*I current, ?n: N/A
- Time measurement range at 2*I current, ?n: N/A
- Time measurement range at current 5*I, ?n: 0 to 40 ms
- Time measurement accuracy: ±(5%+5)

Phase sequence measurement:
- for voltage: three-phase AC 100 V to 440 V / 45 to 65 Hz
- phase sequence: L1 › L2 › L3 forward rotation; L1 › L2 › L3 reverse rotation
- phase voltage drop: the voltage drop on phase L1, L2 or L3 will be shown on the LCD display

RCD (residual current device) test: rated currents: 10 mA, 30 mA, 100 mA, 300 mA, 500 mA (±10%)

AC and DCV voltage measurement
- DC measurement range: 0 to ±440 V
- AC measurement range: 0 to 440 V (50/60 Hz) <10 V: for information only
- resolution: 1 V
- measurement accuracy: ±(2%+3)

Frequency measurement range:
- measurement range: 20 Hz to 100 Hz
- resolution: 1 Hz
- Measurement accuracy: for information only

- Power supply: 6 × 1.5V AA batteries
- LCD display dimensions: 125 × 37 mm
- Colour: red and grey
- Weight: 1 kg (including batteries)
- Device dimensions: 210 × 90 × 175 mm

Manufacturer: UNI-TREND
www.uni-t.cz