Key features:
Executive test in 40A/60A of UL60950-1
n The tester will first check whether the input power supply right connected to N, L,G automatically after power on and give the prompt information if any of misconnection
n The earth resistance can be set up limit and low limit
n Constant current output with the stability of 1% prevents inaccurate test results induced by output supply voltage
n Waveform distortion is less than 1% with linear power amplifier.
n The tester satisfies the safety regulation criterion, which require the crest factor must be within the range between 1.3 and 1.5
n Key lock, preventing operators from modifying test parameters
n Adopt 240*64 graphic dot matrix LCD ,displaying setting parameters and testing parameters strikingly, visually
n LCD contrast, buzzer volume, the retention time of PASS signal can be adjusted by keystrokes.
n 20 memory groups, 20 steps per group
n Rectification circuit adopts RMS-DC converter, truly reflecting tester’s output current value
n Standard PLC interface, optional ports: RS232C, RS485, GPIB, USB
n Through PLC interface control eight memory groups. Level signal or contact signal can be selected as PLC test signal and if level signal selected, PLC high output level is 24V during the testing
Technical parameters
Model | Output current | Earth resistance range | accuracy | Test time | frequency |
CS9950DS | (3.00~60.00)A | (10.0~510.0)mΩ | ±(2%+2counts) | (0.0~999.9)s | 50/60Hz |
Standards
• EN60335-1 SAFETY OF HOUSEHOLDAND SIMILAR ELECTRICAL APPLIANCES
example : coffee machines, dish washers, washing machines, …
• EN60950 SAFETY OF INFORMATION TECHNOLOGY EQUIPMENT
example : typewriters, erasers, accounting machines, modems, telephone answering machines, …
•EN60065 SAFETY FOR AUDIO,VIDEOAND SIMILAR ELECTRONIC APPARATUS
example : amplifiers, radio receivers, antenna amplifiers, electronic music devices, rythme generator,
• EN61010-1 SAFETY FOR ELECTRICAL EQUIPMENT FOR MEASUREMENT,CONTROL AND LABORATORY USE
example : regulation equipment, measure equipment, electrical equipment for laboratories, safety testers, …
Ground resistance test theory:
Test accessories
Production line