SGM3000 Series Smart Meters
User Manual
Restricted
GEH-7111-1.00-2
77
7.
Take accuracy for pulses calculated for 25 seconds for Iref (10A) and above and configure
the reference meter for 25 seconds.
8.
Take accuracy for pulses calculated for 120 seconds for below Iref (10A) loads and configure
the reference meter for 120 seconds.
9.
Start an accuracy check on the reference meter.
10.
After the configured test duration, the reference meter will show the accuracy of the meter.
Watt Hour Test Procedure
To test the meter, proceed as follows:
1.
Note the meter test constant value listed on the nameplate.
2.
Select the desired voltage and current level(s) on the test equipment. (Test voltage of 230 V
is assumed.)
3.
Install the meter in the test panel, making certain that the terminal is wired and/or
configured for the appropriate meter.
4.
Begin testing according to standard test procedures. Allow 15 seconds of settling time after
applying voltage before making accuracy measurements.
Check the meter calibration under three load conditions: full load, light load, and full load with
lagging power factor. A minimum test time of 30 seconds is needed to reduce test uncertainty.
(Check the instruction book for your test board or standard to determine the actual minimum
test time. Standards with heavily filtered inputs may require longer test times.)
8.3 Battery Maintenance
Caution:
Lithium Inorganic 3.6 Volt Battery
•
Do not expose battery to temperatures above 100 degrees Celsius. Do not incinerate,
puncture, crush, recharge, short circuit, or over-discharge battery.
•
The contents are water reactive and the battery contents can form HCL (hydrochloric acid),
SO
2
(sulfur dioxide), and H
2
(hydrogen) upon contact with water (only when forced open).
Do not expose contents of battery to water. Do not expose contents to high humidity for
extended periods of time.
•
Dispose of batteries in accordance with local, state, and federal hazardous waste
regulations.
To obtain an MSDS (Material Safety Data Sheet), contact your local Aclara supplier.
8.4 Service
The SGM3000 Series meters are factory-calibrated and require no routine or scheduled service
by the user.
