Table of Contents
Advertisement
3.2: Basic Operations
Infrared
Test Pulse
Optical Port
Switches and Indicators
There are two switches accessible from outside the meter cover.
1. The Mode Switch (also called a Reed Switch) is used to switch from Normal Mode to
Circuit Diagnostic Mode or Time of Use Mode.
2. The Reset Switch is used to reset demand.
A third switch, the Test Button, is accessible only when the cover has been removed. The Test
Button switches the meter from one of the operational modes to Test Mode and back to Normal
Mode. The Test Button is also used to access Display Adjustments Mode during Powerup Mode.
The Display Adjustments Mode is discussed in Section 3.5.
The Optical Port is on the lower left side of the face. The Optical Port facilitates infrared
communication with the meter. Using an A7Z Communication Interface (or other ANSI C12.13
Type II magnetic optical Communications coupler) and an RS232 cable from the A7Z to a PC, you
can program the meter with Communicator EXT software.
An Infrared Test Pulse is located on the upper left side of the face. Energy pulsing applications can
be configured using Communicator EXT software.
A Phase Indicator is located on the lower right side of the face. "ABC" will stay illuminated if all
three phases of voltage and current are present. "ACB" indicates reversed phase sequence. It will
blink A, B or C if one phase is not present. If all phases are not present, the meter will turn off
(unless you have an Aux pigtail connected to a power source).
Electro Industries/GaugeTech
®
Figure 3.2: Nexus
1262/1272 Meter Switches and Indicators
Doc # E151701
Activate Mode
(Reed) Switch
with a Magnet
swiped on the
side of the
meter.
Mode (Reed)
Switch
Test Button
Under Cover
Reset Switch
3-3
Advertisement
Table of Contents
