- 产品型号：
- CT3220E
Features： 1 Connection terminal Current output “I+、I-” connected to outside end of trial product's resistance； “V1+、V1-”namely voltage input terminals of channel 1 and “V2+、V2-”namely voltage input terminals of channel 2。 2 Earthing terminal: protecting the unit. 3 Temperature probe plug end. 4 Arc suppression：can do indication of Arc status, in addition, it is no caution for small transformer with direct Arc inside. 5 Power socket：AC 230V±10%（with 10A safe fuse inside）. 6 Power switch. 7 Contrast knob：used to adjust contrast. 8 USB jack. 9 Keypress “left key、right key、INTER”: used to adjust cursor position and numerical value and then confirm. 10 LCD screen. 11 Printer：printing test data. Note： 1 Ensure reliable earthing and turn on the unit after finishing connection; to avoid possible accident, don’t move the test lead during test of output current; when finishing the test, you 2 can turn off after Arc indication alarm stops, then move the test lead. 3 When testing no-load-tap power transformer, please don’t switch tap point and range until discharge indication alarm stops. 4 To avoid electromagnetism disturb to get better test, please make short circuit for windings which don’t need test. 5 When automaticlly testing, the unit will output maximum current according trial product’s resistance; when by manual, please choose possible maximum current to improve test accuracy. 6 During test, the user can choose channel, resistance value of selected channel will be displayed. Technical index： 1 Structure and Size ◇Type：portable ◇Dimension: 330*218*140mm ◇Main box: aluminium alloyed box ◇Weight: 6.5kg 2 Power source ◇Working power source: AC230±10%, frequency 50Hz±10% ◇Test voltage: DC 30V ◇Current output: Auto: load maximum test current by programme automatically according to trial product’s resistance Manual： 50mA、0.1A、0.3A、0.5A、1A、3A、5A、10A。 3 Working conditions ◇Temperature：-20℃～50℃，relative humidity：≤80% ◇Working way：continuum 4 Test index ◇Test range : 0～2KΩ Accuray: 0.2%, ±2 digits Maximum resolution: 0.1μΩ 5 Memory records quantity: 200pcs After sales service： Quality guanrantee period : three years.
