UNI-T UT60A Manual do Utilizador descarregar pdf (Página 7)

The meter is auto-ranging, which means that the display scale will automatically be adjusted. By

pressing a button, it can also be overridden with a manual range, which is handy if a measurement is

on the border of two display scales. Additional measurement features include a hold function, which

freezes the display, and a min-max measurement, which measures minimum, maximum and average

values over a longer period. This last feature is useful when testing a power supply, for example.

The base station: build quality and first impressions

Like most Fluke instruments, the meter is made of black plastic with a yellow, hard rubber covering.

The housing is solid enough to survive a drop off the table. The covering has a fine texture that is not

very sensitive for fingerprints, and provides a nice grip of the meter. However, the meter is too heavy

to be held in your hand comfortably with its weight of 600 g (1.3 lb), especially for a longer time,

although the removable display module and the optional ToolPak accessory partly compensate for

this. A large part of the weight is caused by the five AA batteries. I would have preferred two 9V

batteries, which weigh a bit less than the AA batteries.

The rotary knob needs a fair amount of force to turn. The meter does not have a separate power

button, which I do not like: when you want to turn off the meter, you have to turn back the knob

every time. Because this is clumsy, you will probably leave the meter on between measurements,

draining the batteries more than needed. It will also increase the wear on the rotary knob, which

might become weak over time and eventually malfunction, which is how I lost a multimeter of

another brand. The meter also has a yellow “Shift” key, which can be used to switch between

different but similar modes, such as resistance measuring and continuity testing. The state of the

shift key is forgotten if the rotary knob is turned.

There are three connectors for the probes: one for high impedance (voltage) measurements, one for

low impedance (current) measurements and one ground connector. This means both low and high

current measurements use the same connector, unlike a lot of other multimeters. The connection

with the probe plugs is quite firm: they will not fall out accidentally.

The meter does not make any audible noise, except of course for the continuity beeper, which also

beeps if you press a button. The beeper is located in the removable display module.

The Fluke 233 takes about three seconds to start up; the measurements itself take a second or two,

even with auto-range enabled. The meter feels quick enough to not be inconvenient.

The back of the multimeter houses a stand and the battery compartment of the base station. You can

open the battery compartment by turning the large screw half a turn. This makes replacing the

batteries very easy. I am less satisfied with the stand, however. It is quite thin and it will break if you

pull it too far.

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UNI-T UT60A Manual do Utilizador Página 7