Leviton 3300 series, Инструкция по установке и эксплуатации, Страница: 22 / 48

4 General Metering Features and Functionality
15
4.1 Display
Main Numerical Display and Scroll Button
The main numerical display section indicates the numerical value of the current item. After startup
sequence (see section 4.3) the display will revert to Real Energy (kWh) delivered (consumed).
The Scroll button on the enclosure door permits the user to scroll through nineteen screens of
information (00-18) as shown in Table 4. Depress and hold scroll button for a few seconds to enter
auto-scroll mode in which each screen appears for 4 seconds in the order shown in Table 4. To
return to manual mode press and release the scroll button briefly (less than one second).
Phase Indicators and Parameter Indicators
The Phase and Parameter Indicator sections have two purposes. The Phase Indicators show the
phase currently being displayed on per-phase values. Parameter Indicators are associated with
values on the main numerical display.
• Low
Voltage
Low voltage (below minimum rated voltage with respect to neutral) on a phase is shown by
a blinking of the ‘V‘ Parameter Indicator in conjunction with corresponding Phase Indicator.
For example, if low voltage is detected on phase A the ‘V‘ Parameter Indicator and the A‘
phase indicator will blink simultaneously.
• Energy Flow Indicator
On all Amps and kW screens the Energy Flow arrow will illuminate indicating energy
direction. Arrow pointing to the right indicates energy delivered from grid. Arrow pointing to
the left indicates energy reversed. In addition to the arrow, the Amps parameter indicator
(“A”) and the corresponding phase indicator (A, B, or C) flash when Energy Flow arrow
points left. The Amps and kW arrows should always point to the right when load current are
present. The Energy Flow arrow points to the left when CT orientation is reversed or energy
is being delivered to the grid, however the energy and power will not register on the meter.
PF
Screen Number Main Numerical Display
Energy Flow
Phase Indicators
Parameter Indicators
Figure 10: Custom LCD sections
WEB
VERSION