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产品信息
在耐压测试中,我们都是认为漏电流越小越好,因此很多的操作者都没有对下限电流进行设定(一般出厂值设定为*),如果出现上述的情况,就存在误判的可能,这时合理地设定下限就能解决此种情况的发生。在耐压仪不连接被测物的情况下进行空测,此时有一个很小的虚电流,我们*将下限电流设定为较空测电流值稍高就可以了。 当测试回路出现开路(如操作人员未能连接好被测物或是测试线短裂等情况),由于漏电流值小于下限设定,此时*缘耐压测试仪就会出现报警的提示。那么我们就要检查一下是否测试线或是连接上出现开路的情况,从而*产品测试的*性。 在作*缘阻*测试中,也同样存在这样的问题。对于一般产品而言,总是认为产品*缘电阻越大越*合要求,但如果同样出现*缘耐压测试仪与被测物之间开路的现象,那么也会存在同样的误判现象。这时我们就可以通过设定*缘阻*上限值来避免这种情况的发生。
嘉仕电子7110/7112/7120/7122实用数位合成型耐压/*缘测试仪技术参数
MODEL 7110 7112 7120 7122
AC WITHSTAND VOLTAGE
Output Rating 5KVAC/12mA
Range Resolution Accuracy
Output Voltage,KVAC 0-5.00 0.01 ±( 2% of setting +5V )
Output Frequency 50Hz/60Hz±100ppm,User Selection
Output Waveform Sine Wave,THD<2%( Resistion Load ),Crest Factor = 1.3-1.5
Output Regulation ±( 1% of output +5V ),Form no load full load
SETTINGS
Hi-Limit AC Current,mA 0.10-12.00 0.01 ±( 2% of setting +2counts )
Lo-Limit AC Current,mA 0.00-12.00 0.01 ±( 2% of setting +2counts )
Ramp Time,second 0.1-999.9 0.1 ±( 0.1% + 0.05sec )
Dwell Time,second 0,0.2-999.9 0.1
( 0=continuous )
Arc Detection 0,1-9 ranges ( 0=OFF,9 is the most sensitivity )
DC WITHSTAND VOLTAGE(7120,7122 ONLY)
Output Rating 6KVDC/5mA
Output Voltage,KVDC 0-6.00 0.01 ±( 2% of setting +5V )
Output Ripple < 5% ( 6KV/5mA at Resistive Load )
SETTINGS
Hi-Limit DC Current,mA 0.02-5.00 0.01 ±( 2% of setting +2counts )
Lo-Limit DC Current,mA 0.00-5.00 0.01 ±( 2% of setting +2counts )
Ramp Time,second 0.1-999.9 0.1 ±( 0.1% + 0.05sec )
Dwell Time,second 0,0.2-999.9 0.1
( 0=continuous )
Arc Detection 0,1-9 ranges ( 0=OFF,9 is the most sensitivity )
Discharge Time ≦200msec
MODEL 7110 7112 7120 7122
INSULATION R*ISTANCE ( 7112,7122 ONLY )
Output Rating 1KVDC/1000MW
Output Voltage,KVDC 0.10-1.00 0.01 ±( 2% of setting +3V )
SETTINGS
Hi-Limit Resistance,MW 0,1-1000(0=OFF ) 1 ±( 3% of setting +2counts ) at ≧ 500VDC
Lo-Limit Resistance,MW 1-1000 1 ±( 7% of setting +2counts ) at <500VDC
Delay Time,second 0,0.5-999.9 0.1 ± ( 0.1% + 0.05sec )
( 0=continuous )
GENERAL
Input Voltage AC 115/230VAC±15%,50/60Hz±5%,Fuse 3.15A Fast
PLC Remote Control Input: Test,Reset
Output: P*,Fail,Processing
Memory 5 Sets store/Recall of each Memory,4Test Mode Selectable ( W,I,W-I,I-W Only 7112,7122)
Display 16×2 LCD with back light
Key Lock To prevent unauthorized alteration of test parameters
Calibration Build-in software and external calibrated meters
Environment 0-40℃,20-80%RH
Dimension/Net Weight 280mm(W)×89mm(H)×370mm(D)/9Kg
※Ordering Information※---------------------------------------------------------------------------------
7110 AC Withstand Voltage Tester
7112 AC Withstand Voltage / Insulation Resistance Tester
7120 AC/DC Withstand Voltage Tester
7122 AC/DC Withstand Voltage / Insulation Resistance Tester
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