Đồng hồ đo điện trở cách điện, (Mêgôm mét), KYORITSU 3128, K3128 (12kV/35TΩ)

Thông số kỹ thuật:

1) Đo điện trở cách điện
Điện áp thử : 500V/1000V/2500V/5000V10000V/12000V
Giải đo điện trở : 500GΩ/1TΩ/2.5TΩ/35TΩ
Độ chính xác : ±5%rdg |±3dgt và ±20%rdg tùy từng giải
Dòng điện ngắn mạch : 5mA
2) Điên áp đầu ra
Giải điện áp : 500V/1000V/2500V/5000V10000V/12000V
Độ chính xác : 0~+20%
Giải chọn :
 50~600V (step 5V),
 610~1200V (step 10V),
1225~3000V (step 25V)
3050~6000V (step 50V)
6100~10000v (step 100V)
10100 ~ 12000V (step 100V)
3) Đo điện áp
Giải điện áp : DCV : ±30~±600V,
ACV : 30~600V (50/60Hz)
Độ chính xác : ±2%rdg
4) Đo dòng : 0 ~ 2.4mA
5) Đo tụ điện
Giả đo : 5nF ~ 50uF
Độ chính xác :         ±5%rdg
Nguồn : Pin 12V
Kích thước  :330 (L) × 410 (W) × 180 (D) mm
Phụ kiện :
+ 7170 (Main cord),
+ 7224A (Earth cord),
+ 7225A (Guard cord),
+ 7226A (Line probe),
+ 7227A (Line probe with alligator clip),
+ 8029 (Extension prod),
+ 8212-USB-W
Hướng dẫn sử dụng
Bảo hành : 12 tháng
Hãng sản xuất : Kyoritsu – Nhật
Xuất xứ : Nhật Bản

• Microprocessor controlled high voltage insulation resistance tester with Diagnostic functions. • Suitable for analyzing the insulation characteristics of cables, transformers, motors, generators, high-pressure switches, insulators, wiring installations, etc. • 6 ranges: 500V, 1000V, 2500V, 5000V, 10000V, 12000V Fine adjustment of voltage setting at each range is also possible • Graphic representation of the insulation resistance and leakage current versus time on large display with bar graph and backlight. • Can be operated from built-in rechargeable battery or from AC line. • Automatic discharge after test with monitoring of the discharge voltage. • Internal memory can store about 43,000 data (max). • Robust design for field use with IP64 rating (with lid closed).

Rated voltage

500V

1000V

2500V

5000V

10000V

12000V

Max measurement value

500GΩ

1TΩ

2.5TΩ

5TΩ

35TΩ

Accuracy

400k~50GΩ ±5%rdg±3dgt (*)

800k~100GΩ ±5%rdg±3dgt

2M~250GΩ ±5%rdg±3dgt

4M~500GΩ ±5%rdg±3dgt

8M~1TΩ ±5%rdg±3dgt

50G~500GΩ ±20%rdg (*)

100G~1TΩ ±20%rdg

250G~2.5TΩ ±20%rdg

500G~5TΩ ±20%rdg

1T~10TΩ ±20%rdg

10T~35TΩ Values are displayed, but accuracy isn’t guaranteed

Short circuit current

Max 5.0mA

Load resistor to output rated voltage

0.5MΩ or more

1MΩ or more

2.5MΩ or more

5MΩ or more

20MΩ or more

24MΩ or more

Output voltage

Rated voltage

500V

1000V

2500V

5000V

10000V

12000V

Monitor accuracy

±10%±20V

±10%±20V

±10%±20V

±10%±20V

±10%±20V

±10%±20V

Output accuracy

0~+20%

0~+10%

0~+10%

0~+10%

-5~+5%

-5~+5%

Selectable range

50~600V (in steps of 5V)

610~1200V (in steps of 10V)

1225~3000V (in steps of 25V)

3050~6000V (in steps of 50V)

6100~ 10000V (in steps of 100V)

10100~ 12000V (in steps of 100V)

Voltage measurement

Measuring range

DCV : ±30~±600V, ACV : 30~600V (50/60Hz)

Accuracy

±2%rdg±3dgt

Current measurement

Measuring range

0.00nA~2.40mA (Depending on the insulation resistance)

Capacitance measurement

Measuring range

5.0nF~50.0µF

5.0nF~1.0µF (display range: 5.0nF~50.0µF)

Accuracy

±5%rdg±5dgt

General

Withstand voltage

AC8770V : between line terminal and enclosure / 5sec (50/60Hz) AC6880V : between the measuring terminal and enclosure / 5sec (50/60Hz) AC2330V : between the power connector and enclosure / 5sec (50/60Hz)

Operating temperature & humidity range

-10ºC~50ºC / Relative humidity 85% or less (when operating with an external power supply, no condensation) 0ºC~40ºC / Relative humidity 85% or less (when operating with battery, no condensation)

Storage temperature & humidity range

-20ºC~60ºC / Relative humidity 75% or less (no condensation)

Applicable standards

IEC 61010-1 CAT.IV 600V Pollution degree 2, IEC 61010-031, IEC 61326, IEC 60529 (IP64): with the lid closed.

Power source

Rechargeable Lead storage battery (12V)* Charging time: approx. 8 hours / AC Power supply (100V~240V, 50/60Hz) * Continuous measuring time: approx. 4 hours (a load of 100MΩ at the Insulation resistance 12000V Range.) approx. 2 hours (Max current consumption in range while rated currents are maintained.)

Dimension

330 (L) × 410 (W) × 180 (D) mm *Instrument and Hard case

Weight

9kg approx. (including battery) *Instrument and Hard case

Accessories

7170 (Main cord), 7224A (Earth cord), 7225A (Guard cord), 7226A (Line probe), 7227A (Line probe with alligator clip), 8029 (Extension prod), 8212-USB-W (USB adaptor with KEW Windows (Software)), Instruction manual, Calibration Certificate

Optional

7254 (Longer Line probe with alligator clip)