Đồng hồ đo điện trở cách điện, Mega ôm mét, Fluke- Mỹ, Fluke 1550C (5kV, 2TΩ)

Insulation resistance measurement

Test voltage (dc)

Range (dc)

Accuracy (? reading)

250 V

< 200 kΩ

200 kΩ to 5 GΩ

5 GΩ to 50 GΩ

> 50 GΩ

unspecified

5 %

20 %

unspecified

500 V

< 200 kΩ

200 kΩ to 10 GΩ

10 GΩ to 100 GΩ

> 100 GΩ

unspecified

5 %

20 %

unspecified

1000 V

< 200 kΩ

200 kΩ to 20 GΩ

20 GΩ to 200 GΩ

> 200 GΩ

unspecified

5 %

20 %

unspecified

2500 V

< 200 kΩ

200 kΩ to 50 GΩ

50 GΩ to 500 GΩ

> 500 GΩ

unspecified

5 %

20 %

unspecified

5000 V

< 200 kΩ

200 kΩ to 100 GΩ

100 GΩ to 1 TΩ

> 1 TΩ

unspecified

5 %

20 %

unspecified

10000 V

< 200 kΩ

200 kΩ to 200 GΩ

10 GΩ to 2 TΩ

> 2 TΩ

unspecified

5 %

20 %

unspecified

Bar graph range

0 to 1 TΩ

Insulation test voltage accuracy

-0 %, +10 % at 1 mA load current

Induced ac mains current rejection

2 mA maximum

Charging rate for capacitive load

5 seconds per °F

Discharge rate for capacitive load

1.5 s/°F

Range

Accuracy

Leakage current measurement

1 nA to 2 mA

± (5 % + 2 nA)

Capacitance measurement

0.01 uF to 15.00 °F

± (15 % rdg + 0.03 °F)

Timer

0 to 99 minutes

Resolution

Setting: 1 minute

Indication: 1 second

Live circuit warning

Warning range

30 V to 660 V ac/dc, 50/60 Hz

Voltage accuracy

? (15 % + 2 V)

General specifications

Display

75 mm x 105 mm

Power

12 V lead-acid rechargeable battery, Yuasa NP2.8-12

Charger Input (AC)

85 V ac 50/60 Hz 20 VA

This Class II (double insulated) instrument is supplied with a Class 1 (grounded) power cord. The protective earth terminal (ground pin) is not connected internally. The extra pin is for added plug retention only.

Dimensions

170 mm x 242 mm x 330 mm (6.7 in x 9.5 in x 13 in)

Weight

3.6 kg (7.94 lb)

Temperature (operating)

-20 °C to 50 °C (-4 °F to 122 °F)

Temperature (storage)

-20 °C to 65 °C (-4 °F to 149 °F)

Humidity

80 % to 31 °C decreasing linearly to 50 % at 50 °C

Altitude

2000 m

Enclosure sealing

IP40

Input overload protection

1000 V ac

Electromagnetic compatibility

EN 61326

Safety compliance

CAT III 1000 V, CAT IV 600 V

Pollution degree

2