Leak Current Measurement, an Essential Part of Electrical Safety (for electrical devices)
Accuracy guaranteed: 1 year
| Measurement methods | Measurement of voltage drop across body simulated resistance points, Calculation and display of current values, True rms measurement, Measurement unit floats relative to instrument ground. | |||||
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| Measurement modes | Leak current measurement, voltage measurement, safety conductor current measurement | |||||
| Standards compliance (NW: Body simulated resistance) |
[NW-A] • Electrical Appliances and Materials Safety Act [NW-C] • Measurement of touch current and protective conductor current: IEC 60990:2016 • Electrical equipment for measurement, control, and laboratory use: IEC 61010-1:2010+ A1:2016 • Information technology equipment: IEC60950-1:2005+ A1:2009+ A2:2013 • Audio, video and similar electronic apparatus: IEC 60065:2014 • Personnel Protection Systems for EV: UL 2231-1:2012 (Amended 2016), UL-2231-2:2012 (Amended 2016) [NW-D] • For UL: UL 1492:1996 (Amended 2013) [NW-G] • Electrical equipment for measurement, control, and laboratory use; current measurement circuits in damp conditions: IEC 61010-1:2010+ A1:2016 |
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| Leak current measurement | Ground leak current, 3 types of contact current, free current measurement, 3 types of enclosure leak current | |||||
| Measurement current | DC, AC (true rms, 15 Hz to 1 MHz), AC+DC (true rms, 15 Hz to 1 MHz), AC peak (15 Hz to 1 MHz) | |||||
| Measurement ranges | DC / AC / AC+DC mode: 50.00 mA/ 5.000 mA/ 500.0 μA/ 50.00 μA AC peak mode: 75.0 mA/ 10.00 mA/ 1.000 mA/ 500.0 μA |
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| Measurement accuracy (current measurement) |
DC measurement: ±2.0% rdg. ±6 dgt. (typ.) AC / AC+DC measurement: ±2.0% rdg. ±6 dgt. (15 Hz to 100 kHz, typ.) AC peak measurement: ±2.0% rdg. ±6 dgt. (15 Hz to 10 kHz, typ.) |
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| Interfaces | External I/O, USB 1.1 (communications), RS-232C | |||||
| Functionality | Automatic test, data storage for 100 target devices, clock, data backup, printed output (optional), etc. | |||||
| Power supply | 100/120/220/240 V AC (specify at time of order), 50/60 Hz, 30 VA rated power | |||||
| Target device power supply input | 100 to 250 V AC, 50/60 Hz, Rated current input from terminal block: 20 A | |||||
| Target device power supply output | Output from terminal block: 20 A, Output from outlet: 15 A | |||||
| Dimensions and mass | 320 mm (12.60 in) W × 110 mm (4.33 in) H × 253 mm (9.96 in) D, 4.5 kg (158.7 oz) | |||||
| Included accessories | Test lead L2200 (Red ×1, Black ×1) ×1 set, Enclosure probe 9195 ×1, Power cord ×3, Spare fuse for measurement line ×1, Instruction manual ×1, CD-ROM ×1 | |||||
| Item | ST5540 | ST5541 | ||||
|---|---|---|---|---|---|---|
| Network A (Electrical Appliances and Materials Safety Act) |
○ | ○ | ||||
| Network B (Medical-use electrical devices) | ○ | - | ||||
| Network C (IEC 60990) | ○ | ○ | ||||
| Network D (UL) | ○ | ○ | ||||
| Network E (General-purpose 1) | ○ | ○ | ||||
| Network F (General-purpose 2) | ○ | ○ | ||||
| Network G (IEC 61010-1) | ○ | ○ | ||||
| Item | ST5540 | ST5541 | ||||
|---|---|---|---|---|---|---|
| Power on polarity switching function | ○ | ○ | ||||
| Rated current 20 A | ○ | ○ | ||||
| Function for checking for blown fuses | ○ | ○ | ||||
| Frequency band switching | ○ | - | ||||
| 110% voltage output terminal (T3 terminal) | ○ | - | ||||
| S10, S12, S13, E terminal | ○ | - | ||||
| Item | ST5540 | ST5541 | ||||
|---|---|---|---|---|---|---|
| Earth leakage current | ○ | ○ | ||||
| Touch current | ○ | ○ | ||||
| Patient auxiliary current | ○ | - | ||||
| Patient leakage current | ○ | - | ||||
| Total patient leakage current | ○ | - | ||||
| Free current | ○ | ○ | ||||
| Enclosure - Earth leakage current | ○ | ○ | ||||
| Enclosure - Enclosure leakage current | ○ | ○ | ||||
| Enclosure - Line leakage current | ○ | ○ | ||||
| Patient leakage current I | ○ | - | ||||
| Patient leakage current II | ○ | - | ||||
| Patient leakage current III | ○ | - | ||||
