Chauvin Arnoux C.A 6543 Manual De Instrucciones página 34

1.1 Megohmmeters
Megohmmeters C.A 6541 and C.A 6543 are portable instruments, each housed in robust casing with
lid and operating on batteries (C.A 6541), or on a rechargeable battery and the mains (C.A 6543).
They can be used to measure :
voltage
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insulation
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continuity
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resistance
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capacitance
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These megohmmeters contribute to the safety of electrical installations and equipment.
Their functioning is micro-processor controlled, for data acquisition, processing, displaying measurements,
memory storage and the printing of results (C.A 6543).
They offer a number of advantages such as:
digital filtering of insulation measurements,
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running measurements with the help of a remote control probe,
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automatic voltage measurement in all functions,
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automatic detection of external AC or DC voltages on the terminals, before or during measurements,
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which prohibits or stops measurement, no matter what function you're in,
threshold programming in each function, triggering audible alarms,
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timed control of measurement duration,
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fuse protection of the device, with defective fuse detection,
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operator safety thanks to the automatic discharge of the residual high voltage on the tested device,
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automatic device switch-off to save the batteries (C.A 6541) or the rechargeable battery (C.A 6543)
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the battery wear indicator (C.A 6541) or the battery charge status indicator (C.A 6543),
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a large back-lit LCD with comprehensive range of symbols, easily read by the user.
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The C.A 6543 has the following additional features:
Integral rechargeable battery (recharged from the mains)
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Operation directly powered from the mains
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128 kB memory, real time clock and serial interface
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Piloting of the instrument from a PC (with the optional MEGOHM VIEW software)
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Printing in RS 232 or Centronics mode
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1.2 Accessories
I I I I I Remote control probe (optional, see § 11.3)
This probe plugs in via a specific connector.
It can be used to carry out all measurements, the yellow button operates in just the same way as the
device's START/STOP button.
A push button, on the back of the probe, enables you to light up the measurement point (approx. 500 lux
illumination) : a useful feature since insulation measurements are made on dead installations, hence in
darkness.
1. PRESENTATION
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