ECLIPSE - HT9025
EN - 5
2. GENERAL DESCRIPTION
The instrument has the following features:
Multimeter function
x
DC Voltage up to 1500V
x
AC,
AC+DC
TRMS
Voltage
x
DC, AC, AC+DC TRMS Voltage with low impedance (LoZ)
x
AC TRMS Voltage and Current on VFD devices
x
DC, AC TRMS Current with jaws
x
DC, AC, AC+DC TRMS Current with external clamp transducer
x
AC TRMS Inrush Current
x
Resistance and Continuity test
x
Diode
test
x
Capacity
x
Frequency
x
Duty
Cycle
x
Temperature with K-type probe
x
Data Logger function and display of graphs of measured data
x
Storage of BMP images on internal memory
Thermal camera function (ECLIPSE)
x
Infrared temperature measurement ranging from -20°C to 260°C
x
3 measuring cursors (central hot spot + cold spot)
x
Emissivity of materials which can be selected between 0.01 and 1.00
x
Image frequency: 50Hz
x
5 selectable color palettes
x
Automatic detection of hot/cold spots of the image
x
Storage of BMP images on external micro SD card
x
IR sensor resolution: 80x80pxl
x
Built-in laser pointer and illuminator
Each of these functions can be selected by means of the appropriate switch. The
instrument is also equipped with function keys (see § 4.2), analogue bargraph and LCD
TFT high-contrast color display. The instrument is also equipped with an Auto Power OFF
function which automatically switches off the instrument after a certain (programmable)
idling time.
2.1. MEASURING AVERAGE VALUES ANDTRMS VALUES
Measuring instruments of alternating quantities are divided into two big families:
x
AVERAGE-VALUE meters: instruments measuring the value of the sole wave at
fundamental frequency (50 or 60 Hz).
x
TRMS (True Root Mean Square) VALUE meters: instruments measuring the TRMS
value of the quantity being tested.
With a perfectly sinusoidal wave, the two families of instruments provide identical results.
With distorted waves, instead, the readings shall differ. Average-value meters provide the
RMS value of the sole fundamental wave; TRMS meters, instead, provide the RMS value
of the whole wave, including harmonics (within the instruments bandwidth). Therefore, by
measuring the same quantity with instruments from both families, the values obtained are
identical only if the wave is perfectly sinusoidal. In case it is distorted, TRMS meters shall
provide higher values than the values read by average-value meters.