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CHAPTER 2
PRODUCT FEATURES
2.1
Description
The True RMS Power Meter Model 3910 is designed for today's electrical
environments. Operation is simple. There are no programming require-
ments or menus, just four push-buttons for direct access. The Model 3910
is auto-ranging and ensures the best range for measurements.
Troubleshooting and measuring power is done simply by connecting two
voltage leads and clamping on the current probe. The Model 3910 is
easier to operate than most DMMs and may even replace your multimeter
for individual voltage or current measurements.
Small and compact in its protective holster, the Model 3910 provides seven
essential power measurement values. Four measurements are displayed
at a time on its extra large multi-display LCD.
The Model 3910 performs current and voltage measurements in True
RMS, and provides immediate readings of power factor (PF), active power
(kW), reactive power (kVar), apparent power (kVA) and frequency (Hz).
The Model 3910 displays Vrms, Arms, kW and PF on the first screen;
pressing and holding the PAGE button gives access to kVar, kVA and Hz
on a second screen.
The Peak function allows selection of a specific parameter (A, V or W) for
peak measurement, and also displays the associated values at the par-
ticular peak (for example, the Model 3910 displays the actual V, kW, PF,
kVar, kVA and Hz values when Apeak is selected).
The unique memory function permits not only storing the measurements
at any time, but also comparing subsequent readings by displaying the dif-
ference between the stored values and the new readings. This is helpful in
analyzing and measuring the impact of loads being turned on and off.
A selector switch on the front panel selects power measurements for
single-phase or balanced three-phase, three-wire systems.
TRMS Power Meter Model 3910
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