Installation; Connections - TTI i-Prober 520 Manual De Instrucciones

Mains Operating Voltage
This instrument is supplied with an AC power adaptor which has a universal input range and which will
operate from a nominal 115V or 230V mains supply at 50Hz or 60Hz without adjustment. Check that the
local supply meets this AC Input requirement.
Fit the required national power connector to the adaptor by sliding it down the grooves until it locks.
Disconnect the power adaptor from the supply when the unit is not in use.
The AC adaptor is a Safety Class II (double-insulated) device providing 5.2VDC at up to 1Amp. The
ground reference for the measurement system is the ground connection made to the scope. Always use
a scope which has a grounded chassis so the outer of the BNC is connected to ground.
General Installation Considerations
When used without the toroid attachment (for current in a wire) the probe will be influenced noticeably by
all external magnetic fields at the point of measurement – not only the earth's magnetic field (which may
be modified by steel metalwork) but leakage fields from inductors or transformers, magnetised
components, etc. The Operation section contains useful notes on how to achieve the best qualitative and
quantitative measurements in the various operating modes in the presence of such stray fields.
Power connection
Fit the required national power connector to the supplied adaptor by sliding it down the grooves until it
locks and connect the adaptor to the AC supply. Connect the output lead from the adaptor to the power
input socket of the control box, marked DC IN.
Output signal
Connect the BNC connector on the captive output lead from the control box (marked OUTPUT) to a 1MΩ
scope input. This lead is sensitive to loading capacitance and should not be extended if accurate
reproduction of the waveform shape is required. Always use a scope which has a grounded chassis so
the outer of the BNC is connected to ground, and make this connection before probing high voltages.
The scope Y-axis sensitivity can be set to suit the magnitude of the field being investigated. AC coupling
can be used to remove the effect of the earth's magnetic field, or other fixed fields from permanently
magnetised material, provided they are not so large as to overload the probe.
Measurement Connection
The cable between the probe unit and the control box is captive at both ends and cannot be replaced by
the user. Care should be taken to ensure it does not come into contact with hot objects.
The measurement of current is effectively 'non-contact'; no galvanic connection is made to the current-
carrying conductor being probed. The probe tip and the probe shaft forward of the raised safety barrier
are double-insulated and it is possible to probe safely onto conductors at high voltages with respect to
earth ground, up to the limits stated in the Specification. However, it is imperative that the insulation of
the probe tip has not been damaged by abrasion or by contact with hot surfaces above 150°C.
Read and understand the Safety section of this manual before use.
Measurements on apparatus with dangerous voltages exposed should only be made by
engineers with sufficient training and experience to recognise the hazards involved.
Always inspect the probe tip for wear before use on conductors at hazardous voltages.
6
The unit may only be used with the power adaptor supplied.
The unit may only be used with the power adaptor supplied.

Installation

Connections