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E154713
5-14
5: Communication Wiring
Electro
Industries/GaugeTech
The Leader In Power Monitoring and Smart Grid Solutions
Electro
Industries/GaugeTech
The Leader In Power Monitoring and Smart Grid Solutions
Internal Clock Crystal
• The Nexus® 1500+ meter is equipped with an internal clock crystal that is accurate
to 3.5 ppm, or less than 10 seconds per month drift, and which can be used if IRIG-
B is not connected and/or Line Frequency Clock Synchronization is not enabled.
• The meter has a battery backup that is used for the real time clock, only, in case of
a power outage. The battery is a Panasonic BR3032, which is rated at 500 mAh and
which has a battery life of at least ten years. A Low Batt message is displayed on
the status bar of the Communicator EXT™ software's Main screen (see Section
2.2.2 of the
Communicator EXT
TM
4.0 and MeterManager EXT Software User Manual
for details) when the battery is equal to or less than 2.55 volts, which is still well
within the operating range of the clock component. It is recommended that you
change the battery within three months after the Low Batt message appears.
Contact EIG’s customer service and support department at phone number 516-
334-0870 (or fax number 516-338-4741) for battery replacement instructions.
SNTP (Simple Network Time Protocol)
• With SNTP you access a Network Time Protocol (NTP) Server for time synchroniza-
tion. The NTP server can be either a device with a real-time clock that is networked
with your meter, or an NTP server on the Internet. You can configure SNTP time
synchronization for either the standard or the optional Ethernet card. SNTP config-
uration is done in the Device Profile. Refer to Chapter 11 of the
Communicator
EXT
TM
4.0 and MeterManager EXT Software User Manual
for instructions.
DNP Time Synchronization
• Using Communicator EXT
TM
software, you can set the meter to request time
synchronization from the DNP Master. Requests can be made from once per minute
to once per day. See the
Nexus® 1252/1262/1272/1500/1500+ DNP User Manual
for instructions. You can download the manual from EIG’s website:
www.electroind.com/dl_page.html.
Other Time Setting Tools
•
Tools>Set Device Time
: for manual or PC Time Setting
•
Script & Scheduler
: time Stamps Retrieved Logs and Data
•
MV90
: can synchronize time on retrievals in the form of a time stamp; refer to the
Communicator EXT
TM
4.0 and MeterManager EXT Software User Manual
(HHF
Converter) for more MV-90 details.
Summary of Contents for Shark 100T
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