浙江Extech7474超高压耐压测试仪

SPECIFICATIONS

MODEL

7470

7472

7473

7474

Output Rating

10KVAC/20mA

12KVDC/10mA

20KVAC/10mA

20KVDC/5mA

AC WITHSTAND VOLTAGE (7470&7473)

Range

Resolution

　Accuracy

Output Voltage,

ACV (for 7473)

0 - 20000

10

± ( 2% of setting + 20V )

Output Voltage,

ACV (for 7470)

0 - 10000

10

± ( 2% of setting + 10V )

Output Frequency

50Hz/60Hz ±100ppm, User Selection

Output Waveform

Sine Wave ,THD.<2% (Resistive Load), Crest Factor = 1.3 - 1.5

Output Regulation

± (1% of output + 10V), From no load to full load

SETTINGS

Hi / Lo -Limit

AC Current, mA

(for 7473)

0 - 9.999

0.001

± ( 2% of setting + 2counts )

Hi / Lo -Limit

AC Current, mA

(for 7470)

0 - 9.999/

10.00 - 20.00

0.001/0.01

± ( 2% of setting + 2counts )

Ramp Up Time,

second

0.1 - 999.9

0.1

± ( 0.1% + 0.05sec )

Ramp Down Time, second

0.0 - 999.9

0.1

Dwell Time

0,

0.3 - 999.9 sec

(0=continuous)

0.1

0,

0.1 - 999.9 min

0=continuous)

0.1

0,

0.1 - 999.9 hr

(0=continuous)

0.1

Cycle Test

0 - 9999 Times, (0=continuous)

Arc Detection

Range 1 - 7 > 15kV , Range 1 - 9 < 15kV

AC Current Offset,

mA

0 - 2.000 or Auto Set ( Option )

MEASUREMENT

AC Voltage, KV

(for 7473)

0 - 20.00

0.01

± ( 2% of reading + 2counts )

AC Voltage, KV

(for 7470)

0 - 10.00

0.01

± ( 2% of reading + 2counts )

AC Current Range,

mA

0-3.500

0.001

± ( 2% of reading + 3counts )

3.00-10.00

(for 7473)

0.01

3.00-20.00

(for 7470)

0.01

DC WITHSTAND VOLTAGE (7472&7474)

Output Voltage,

DCV (for 7474)

0 - 20000

10

± ( 2% of setting + 20V )

Output Voltage,

DCV (for 7472)

0 - 12000

10

± ( 2% of setting + 10V )

Output Ripple

<5% (在 20KV/5000?A for 7474, 12KV/9999?A at Resistive Load for 7472 )

SETTINGS

Hi / Lo -Limit

DC Current, ?A

(for 7474)

0.0 - 999.9/1000 - 5000

0.1/1

± ( 2% of setting + 2counts )

Hi / Lo -Limit

DC Current, ?A

(for 7472)

0.0 - 999.9/1000 - 9999

0.1/1

± ( 2% of setting + 2counts )

Ramp Up Time, second

0.4 - 999.9

0.1

± ( 0.1% + 0.05sec )

Ramp Down Time, second

0.0,1.0 - 999.9

0.1

Dwell Time

0,

0.4 - 999.9 sec

(0=continuous)

0.1

0,

0.1 - 999.9 min

(0=continuous)

0.1

0, 0.1 - 999.9 hr

(0=continuous)

0.1

Cycle Test

0 - 9999 Times, (0=continuous)　

Arc Detection

Range 1 - 9 (9 is the most sensitivity)

DC Current Offset,

?A

0.0 - 200.0 or Auto Set (Option )

Ramp High Current

ON/OFF, User Selection

Charge-Low Current,

?A

0.0 - 350.0 or Auto Set

Discharge Time

< 200 msec

Maximum Capacitive

Load

1.5?F < 2KV

0.15?F < 8KV

0.12?F < 14KV

0.08?F < 20KV

0.28?F < 4KV

0.15?F < 10KV

0.1?F < 16KV

MEASUREMENT

DC Voltage,

KV (for 7474)

0 - 20.00

0.01

± ( 1.5% of reading + 2count )

DC Voltage,

KV (for 7472)

0 - 10.00

0.01

± ( 1.5% of reading + 2count )

DC Current Range, 
?A

0-350.0

0.1

± (2% of reading + 3counts)

300-3500

1

3000 - 5000

(for 7474)

10

3000-9999

(for 7472)

GENERAL

Input Voltage AC

115/230VAC ± 15% , 50/60Hz ± 5% Fuse: 6.3A Slow

PLC Remote Control

Input : Test , Reset , Memory1.2.3 ,Interlock

Output : Pass , Fail , Processing

Safety

Smart-GFI Function (<1mA)

Memory

50 memories

Display

20*2 LCD with back light

Key Lock

To prevent unauthorized alteration of the test Parameters

Calibration

Build-in software and external calibrated meters

Interface

RS232/GPIB /Printer Card (Option)

Alarm

Volume Setting

10 ranges set by the numeric keys on the front panel

Environment

0-40℃, 20-80%RH

Dimension

430mm (W)×133mm(H)×400mm(D)

Net Weight

24Kg

24Kg

22.5Kg

23Kg

STANDARD ACCESSORIES

Power Cord (10A)

×1

Fuses

×2 (Including a spare contained in the fuse holder)

Interlock Disable Key (1505)

×1

Hipot Test Lead ,

1.5m (1142)

-

-

×1

×1

Hipot Test Lead ,

1.5m (1143)

×1

×1

-

-

Hipot Return Lead ,

1.8m (1144)

×1

×1

×1

×1