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

Standards 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.

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)

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, User guide ×1, CD-ROM ×1

Item

ST5540

ST5541

Network A (Electrical Appliances and Materials Safety Act)

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Network B (Medical-use electrical devices)

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Network C (IEC 60990)

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Network D (UL)

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Network E (General-purpose 1)

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Network F (General-purpose 2)

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Network G (IEC 61010-1)

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Item

ST5540

ST5541

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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Item

ST5540

ST5541

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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