HT MT-300 Multifunction Tester ການຕິດຕັ້ງ
Continuity with 200mA
Measuring range: 0,01Ω ~ 99.9Ω
Accuracy: ±(5.0% reading + 3 digits)
Test current: > 200mA (R≤ 2Ω)
Open circuit voltage: 4V ≤ V0 ≤ 12V
Insulation resistance
Test voltage: 50, 100, 250, 500, 1000VDC
Measuring range:
0.01MΩ ~ 99.9MΩ (50V)
0.01MΩ ~ 199.9MΩ (100V)
0.01MΩ ~ 499MΩ (250V)
0.01MΩ ~ 999MΩ (500V)
0.01MΩ ~ 1999MΩ (1000V)
Basic accuracy: ±(2.0% reading + 2 digits)
Test current:
> 1mA on 1kΩ x Vnom (50,100, 250, 1kV)
> 2.2mA on 230kΩ @ 500V
Short circuit current: <6.0mA for each test voltage
Line/Loop Impedance (L-L, L-N, L-PE)
Measuring range: 0.01Ω ~ 199.9Ω
Resolution: 0.01Ω min (0.1mΩ with optional accessory IMP57)
Accuracy: ±(5.0% reading + 3 digits)
Test voltage: 100~ 265V (L-N) / 100 ~ 460V (L-L), 50/60Hz
Maximum test current: 5.81A (@265V); 10.10A (@457V)
Selectable MCB protections: curves B, C, D, K
Selectable fuse protections: type aM and gG
Insulating material (test I2t): PVC, butyl rubber, EPR, XLPE
Earth resistance and ground resistivity
Measuring range R: 0.01Ω ~ 49.99kΩ
Measuring range: 0.60Ωm ~ 3.14MΩm
Accuracy: ±(5.0% reading + 3digits)
Test current: 10mA, 77.5Hz
Open circuit voltage: <20Vrms
RCD tripping time and current
RCD type: AC ( ), A ( ), B, General (G), Selective (S), Delayed (R)
RCD rated currents: 10, 30, 100, 300, 500, 650, 1000mA
Relays: 0.3..10A (with optional accessory RCDX10)
L-N, L-PE voltage: 100V ~ 265V, 50/60Hz ± 5%
Half sine-wave test current: 0°, 180°
Tripping time accuracy: ±(2.0% reading + 2 digits)
Test current multipliers: x1/2, x1, x2, x5
Tripping current range: (0.3 ~ 1.1) Idn (AC, A, B)
Tripping current accuracy: 5%Idn (10mA - 650mA)
General specifications
Power supply: 6x1.2V rechargeable type AA NiMH or 6x1.5V type AA alkaline
Battery life: > 550 test (alKaline)
Display: 320x240 resistive color LCD with touch screen
Memory: 999 locations, 3 marker levels
PC interface: optical/USB and Wi-Fi
Dimensions (L x D x H): 225 x 165 x 75 mm / 8.8 x 6.5 x 2.9 in
Weight (including batteries): 1.2 kg / 2.5 lb
Safety IEC/EN61010-1, double insulation
Pollution degree: 2
Mechanical protection: CAT III 240V, max 415V among inputs
Reference standards: IEC/EN61557-1-2-3-4-5-6-7
Working temperature: 0° ~ 40°C / 32° ~ 104°F
Working humidity: <80%RH
Storage temp.: -10° ~ 60°C / 14° ~ 140°F
Storage humidity: <80%RH
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