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| Basic specifications (Accuracy guaranteed for 1 year) |
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| 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. |
| Measurement modes |
Leak current measurement, voltage measurement, safety conductor current measurement |
| Standard compliance |
Medical electrical equipment: IEC 60601-1 (1988) + A2:1995, (2005, 3rd Edition), JIS T0601-1:1999
Electrical Appliances and Materials Safety Act
Measurement of touch current and protective conductor current: IEC 60990 (1999)
Electrical equipment for measurement, control, and laboratory use: IEC 61010-1 (2001)
Information technology equipment: IEC 60950-1 (2005)
Household and similar appliances: IEC 60335-1 (2001) + A1:2004 + A2:2006
Audio, video and similar electronic apparatus: IEC 60065 (2001) + A1:2005
Personnel Protection Systems for EV: UL-2231-1 (2002), UL-2231-2 (2002)
UL: UL-1492 (1996)
Electrical equipment for measurement, control, and laboratory use; current measurement circuits in damp conditions: IEC 61010-1 (2001) |
| Leak current measurement |
Ground leak current, 3 types of contact current, 7 types of patient leak current, patient measurement current, 4 types of total patient leak current, free current measurement, 3 types of enclosure leak current |
| Measurement current |
DC, AC (true rms, 0.1 Hz to 1 MHz), AC+DC (true rms, 0.1 Hz to 1 MHz), AC peak (15 Hz to 1 MHz) |
| Measurement ranges |
DC / AC / AC+DC mode:50 ƒÊA/500 ƒÊA/5 mA/50 mA
AC peak mode:500 ƒÊA/1 mA/10 mA/75 mA |
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.) |
| Interfaces |
External I/O, medical device relay output, USB 1.1 (communications), RS-232C |
| Functionality |
110% voltage application, automatic test, data storage for 100 target devices, clock, data backup, printed output (optional), etc. |
| HiTESTER 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 240 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, mass |
320 (W) ~ 110 (H) ~ 253 (D) mm, 4.5 kg |
| Supplied accessories |
TEST LEAD 9170-10 (1 red and 1 black) ~ 1set, Test Lead Red ~ 1, ENCLOSURE PROBE 9195 ~ 1, alligator clips (2 red and 1 black), instruction manual ~ 1, users manual ~ 1, power cord ~ 3, spare measurement line fuse ~ 1 | |
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| ST5540, ST5541 List of functions |
| Item |
ST5540 |
ST5541 |
| Network |
Network A |
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| Network B1 |
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| Network B2 |
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| Network C |
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| Network D |
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| Network E |
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| Network F |
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| Network G |
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| Testing leakage current mode |
Earth leakage current |
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| Touch current |
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| Patient auxiliary current |
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| Patient leakage current |
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| Total patient leakage current |
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| Free current |
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| Enclosure - Earth leakage current |
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| Enclosure - Enclosure leakage current |
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| Enclosure - Line leakage current |
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| Patient leakage current I |
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| Patient leakage current II |
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| Patient leakage current III |
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| Major functions |
Power on polarity switching function |
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| Rated current 20 A |
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| Function for checking for blown fuses |
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| Frequency band switching |
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| 110% voltage output terminal (T3 terminal) |
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| S10, S12, S13, E terminal |
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Descripcion
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| Leak current measurement, an essential part of electrical safety (Medical-use Electrical Devices/For Standard- and Regulation-compliant) |
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- IEC 60601-1: (2005) 3rd Edition-compliant
- The ST5540 complies with JIS, IEC, and UL standards governing medical- and general-use electrical devices.
- Uninterrupted polarity switching function dramatically reduces cycle time.
- Support for rated currents up to 20 A gives the instrument more than adequate capability for testing products designed to comply with new standards.
- Touch panel features simple, interactive operation.
- Communications functionality and external I/O support allow automatic testing on production lines.
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| Note: Always use an isolation transformer when measuring leak current for medical-use electrical devices. The ST5540 does not include an isolation transformer. When measuring medical-use electrical devices, use a step-up isolation transformer or similar component operating at 110% of the rated supply voltage as the power supply for the device under test. |
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