3M COMBI521 Multifunction Tester Instructions
- June 4, 2024
- 3M
Table of Contents
3M COMBI521 Multifunction Tester
Multifunction instrument for electrical installation safety testing, power
quality analysis and EVSE safety testing
COMBI521 carries out tests on electric systems in compliance with IEC/EN
61557-1 and therefore measurements of continuity of the protection cable,
insulation resistance (with calculation of PI and DAR), overall earth
resistance, RCDs type B, A and AC tripping time and current, line / fault
impedance with calculation of prospective short circuit / fault current, phase
sequence and conformity. COMBI521 also allows measuring and saving
environmental parameters (illuminance, temperature), leakage current and
electric quantities such as voltage, current, power factor, power and
harmonics on single-phase systems. In combination with EV-TEST100, COMBI521
performs verification and control of electric car charging stations (EVSE) in
accordance with IEC / EN 61851-1 and IEC / EN60364-7-722 standards. COMBI521
is provided with the innovative AUTO function: by selecting this function and
only setting the value of RCD current, COMBI521 carries out tests of overall
earth resistance, RCD tripping time and insulation resistance in a sequence.
At the end of the test, the device shows all results with the indication of
compliance or non-compliance with the standards with simple OK or NOT OK
symbols.The internal memory allows saving the measures and subsequently
transfer them onto the PC through the optical/USB connection. Thanks to the
brand new HTAnalysis App, free to download for iOS and Android systems,
COMBI521 is capable of transferring measured and recorded data
onto tablets and smartphones, thus giving the operator the possibility to customize and share through HtCloud the result of their tests.
Measurement function:
- All electrical safety measurements as required by the international safety standards
- AUTOMATIC test (no-trip ground resistance, RCD tripping time, insulation resistance) in a sequence
- Continuity of protective conductors with 200mA
- Insulation resistance up to 1000V, with dielectric absorption ratio D.A.R. and polarization index P.I.
- Polarity test
- Type A, AC, B General and Selective RCD tripping time and current
- Line/Fault impedance, Phase-Phase, Phase-Neutral, Phase-PE (also at high resolution with optional accessory IMP57)
- Coordination of MCBs and fuses
- Global earth resistance
- Phase sequence and conformity measurement
- Measurement of leakage current
- Measurement of electrical parameters in single-phase installations (V, A, W, VAR, VA, PF)
- Measurement of environmental parameters through external probes (HT52/05 and HT53/05)
- Internal memory and PC connection
- Wi-Fi connection to Android and iOS smartphones and tablets
TECHNICAL SPECIFICATION
Hamonics are zeroed in the followed conditions:
- DC: if the DC value <0.5% fundamental value or if the DC value < 5mV
- 1 harmonic: if the value of 1°harmonic <5mV (not displayed)
- 2nd 25th harmonics: if harmonic value <0.5% fundamental value or if the value <5mV
GENERAL SPECIFICATIONS
This instrument satisfies the requirements of Low Voltage Directive 2014/35/EU (LVD) and of EMC
Directive 2014/35/EU
This instrument satisfies the requirements of European Directive 2011/65/EU
(RoHS) and 2012/19/EU (WEEE