Product Details
ST5541 Leakage Current HiTester -HTI
Leakage Current Meter UL & IEC

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Category:Insulation/Saftey Testing

Leak current measurement, an essential part of electrical safety (For Standard- and Regulation-compliant)

•LEAK CURRENT HiTESTER ST5541: A low-cost solution that complies with standards governing 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.

Note: For applications involving leak current measurement of medical-use electrical devices, use the ST5540.

Basic specifications (Accuracy guaranteed for 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.

Measurement modes Leak current measurement, voltage measurement, safety conductor current measurement

Standard compliance 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, 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 μA/500 μA/5 mA/50 mA

AC peak mode:500 μA/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, USB 1.1 (communications), RS-232C

Functionality 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, ENCLOSURE PROBE 9195 × 1, alligator clips (1 red and 1 black), instruction manual × 1, users manual × 1, power cord × 3, spare measurement line fuse × 1

ST5540, ST5541 List of functions

Item ST5540 ST5541

Network Network A

Network B1 -

Network B2 -

Network C

Network D

Network E

Network F

Network G

Testing leakage current mode 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 -

Major functions 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 -

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