GE I210c Manual

							GE Energy
GE I-210+cElectronic Meter
Product Description and Operation, Maintenance,and Upgrade Instructions
GEH-7101-2.00-121
2.1.9.2 Maintenance
The I-210+c™meter is designed for unattended operation over a long life. When the meter or
the site requires attention, the meter has features to facilitate these tasks.
Many modes of operation and enhanced functions are built into the meter software and
may be enabled without physical change to the meter.
Upgrading from demand to demand/load profile or time-of-use operation requires no
added hardware, aside from the battery or super capacitor that supports timekeeping
during power outages
Disk analog on the display for field calibration testing
Test mode for convenient calibration testing without affecting billing data
Self-test of meter operation
Flexible control of display for error conditions and cautions in the meter
Maintenance instructions are covered in Chapter 4Maintenance Instructions.
2.1.10 Advanced Features and Softswitches
Many advanced features of the I-210+c™meter can be enabled with softswitches. Softswitches
are logical controls that enable related groups of meter features. Without activation of a
softswitch, operation of the controlled features is suppressed. Softswitches may be enabled in the
meter as shipped from the factory or may be turned on at any time by the use of MeterMate™
software.
The following softswitches are available in the I-210+c meter:
E2 Switch – Event log
K2 Switch – Kvar and kVA measures
Q2 Switch – Power quality measures
R2 Switch – Two-channel recording
T2 Switch – Time-of-use
N2 Switch – Billing demands
A2 Switch – Alternate communications
Operating features controlled by softswitches are described in Chapter 5Upgrading.
2.2 Programming and Reading Software
The meter is supported by the MeterMate™software suite. This software facilitates setting up
and using many meter features:
Creation of custom meter programs
Loading programs into the meter
Setting site-specific meter parameters 
						

							GE I-210+cElectronic Meter
Product Description and Operation, Maintenance,and Upgrade Instructions
GE Energy
22GEH-7101-2.00-1
Viewing real-time data
Reading meter data
Load profile data analysis and reporting
Meter program and meter data reporting
Batched meter communications
Meter mode conversion and softswitch upgrading
Refer to Reading and Programming Instruction manual for MeterMate™,MeterMate™
MMCOMM Instruction Book(GEH-5084S or most current revision).
2.3 Technical Information
This section contains the theory of operation and general circuit configuration of the GE
I-210+c™meter.
2.3.1 Theory of Operation
The theory of operation of the I-210+c™meter is described in conjunction with the block
diagram shown inFigure 2.
2.3.1.1 Sensing Devices
Voltages are sensed by high-impedance resistive voltage dividers. Currents are sensed by up to
two current transformers, each feeding to the current signal sampling circuit. The sensors provide
scaled signals to the metering chip.
2.3.1.2 Metering Chip
The voltage and current sampling, signal processing, and basic meter calculations are performed
by the metering chip. The meter chip has a 22-bit delta-sigma ADC with an effective sampling
rate of 2520 samples per second. It has two voltage and two current inputs, so it can meter
single-phase and network services. The metering chip also drives the meter’s LCD, provides
real-time clock functionality, and drives the meter’s calibration pulse. 
						

							GE Energy
GE I-210+cElectronic Meter
Product Description and Operation, Maintenance,and Upgrade Instructions
GEH-7101-2.00-123
Figure 2 I-210+c™Meter Block Diagram
2.3.1.3 Microcomputer
The microcomputer is a 32-bit expandable single chip microcomputer. It receives basic metering
data (Wh, varh, V2h) and status information from the meter chip every second. The
microcomputer performs all of the high level metering functions such as summations, demand
calculations, time-of-use functions, and load profile recording. It also provides the
communications interface to the optical port and the AMR communication port.
2.3.1.4 Non-volatile Memory
The I-210+c™meter is equipped with two 32 K × 8 EEPROM devices. All data values and
program parameters are stored in these EEPROMs; a battery is not required for data storage.
Meter data quantities are updated at each power fail event. Stored data is constantly checked to
detect errors.
2.3.1.5 Power Supply
The I-210+c™meter is powered from the A-phase voltage line. It has a solid-state switching
type power supply. The meter is available in two voltage ratings: 120 V or 240 V, ±20% of
rating. The supply operates for either 50 Hz or 60 Hz line frequency.
Note:The frequency at which the meter will operate is factory configured; it is not user
programmable. 
						

							GE I-210+cElectronic Meter
Product Description and Operation, Maintenance,and Upgrade Instructions
GE Energy
24GEH-7101-2.00-1
Caution:Do not exceed 288 volts RMS on the power supply voltage input
terminals.
2.3.1.6 Time Keeping Battery
A standard 3.6 V, half-size AA, lithium battery maintains the meter clock when the meter is
programmed as a time-of-use meter or demand meter with load profile recorder. Since all billing
and programming information is stored in non-volatile memory, the battery is primarily used for
maintaining date and time information during a power outage. Under normal conditions, the
battery should provide more than one year of service during outage conditions (time on battery
backup) and more than 10 years of service during storage conditions (disconnected from
terminals) or when properly installed in an energized meter.
A super capacitor is also available and may be ordered in place of a battery. The super capacitor,
when fully charged, will provide a minimum of eight hours and a maximum of 18 hours backup
at nominal temperature of 25 C. It is charged from the meter’s power supply.
2.3.1.7 AMR Modules
In order to support meter communications with AMR modules, the basic meter provides a
connector containing a power fail signal and power for AMR modules.
Note:Only AMR vendors with Non-Disclosure Agreements with GE, providing modules tested
by GE, will be considered within the warranty agreement.
2.4 Remote Disconnect Features
The Remote Connect/Disconnect (RCD) feature provides the means to disconnect the load side
terminals from the line side terminals by activating a switch that is controlled by the meter. This
can be used for applications such as Pre-Payment Metering (PPM), Emergency Conservation
Periods (ECP), Demand Limiting Periods (DLP), and Outage Management. The RCD feature
provides the means to connect or disconnect service with direct switch commands. Presence of
load side voltage will be detected, and service will not be reconnected (the RCD switch will not
be closed) while load side voltage is present.
The load control modes and direct switch commands share control of the one RCD switch. The
RCDC function can be inoneof the following states listed from highest to lowest priority:
locked open, locked closed, armed for manual closure, opened and held open, open due to outage
management, open due to load control service disconnect, and closed with service connected. If
the meter detects load-side voltage, the actual switch state will remain open until load side
voltage is no longer detected. 
						

							GE Energy
GE I-210+cElectronic Meter
Product Description and Operation, Maintenance,and Upgrade Instructions
GEH-7101-2.00-125
The following soft switches are associated with the RCD feature in order to provide
additional load limiting features:
ECP soft-switch to enable the Emergency Conservation feature;
DLP soft-switch to enable the Demand Limiting functionality;
Prepayment soft-switch if Prepayment Metering is desired.
2.4.1 Emergency Conservation Demand Limiting Function
In certain circumstances it may be necessary for a utility to take emergency conservation
measures when the total system load reaches a critical level. Presently the only recourse for the
utility is to disconnect load from the system to reduce demand. In some cases the utility must
introduce rolling blackouts, which can create significant inconveniences for customers.
The Emergency Conservation Demand Limiting Function provides a means for a utility to
enforce an emergency conservation policy for all residential customers. This will allow the utility
to establish a maximum demand that its customers would be allowed during the conservation
period. The Emergency Conservation Demand Limiting Function will only be supported when
the ECP soft switch has been enabled.
The meter will use the quantity specified by the first value in the measurement profile for the
purposes of calculating the ECP demand and updating the ECP summation accumulator. The
MeterMateprogramming software will ensure that this value is proper for the application.
Typically this will be a watthour quantity
2.4.2 The Demand Limiting switch function
The Demand Limiting period (DLP) function is intended to allow a utility to enforce a minimum
critical load support to customers who may have irregular or no payment history. The application
allows utilities to program a meter to disconnect a switch if the actual demand is above the
programmed threshold. This mode of operation is exactly like the ECP mode, except for the fact
that the DLP has no field to support “DLP duration”. The DLP is never expected to expire on its
own, due the nature of application, this mode supports. This mode is initiated and terminated by
the AMI system, under the utility commands.
2.4.3 Prepayment Meter Function
Most residential electric customers are billed in arrears for electricity usage. It is desirable in
some circumstances however to implement a pre-payment scheme in which a customer
purchases a fixed amount of electricity in advance of using it. Such applications are useful in
situations where there is a poor credit history and disconnection of service is frequent. It is also
attractive in high turnover or transient accounts where the overhead of setting up and maintaining
an account is high considering the useful duration of the account. In the Prepayment mode of
operation, the meter maintains an additional energy accumulator, termed as prepayment
accumulator. This accumulator is expected to be preset to a desired kWh value (which is
typically the prepaid energy) before the meter is switched into this mode. Once in the
prepayment mode, the meter continually subtracts the actual kWh consumption from this
accumulator, thus reducing the balance as the energy is consumed. The meter can be 
						

							GE I-210+cElectronic Meter
Product Description and Operation, Maintenance,and Upgrade Instructions
GE Energy
26GEH-7101-2.00-1
programmed to disconnect the load once the prepayment accumulator reaches zero or a negative
value, as programmed.
2.4.4 Outage management and restoration
The outage management function enables meter, to open the “closed” switch, in an event of
outage. Note that the meter does not enter into outage open mode, if the switch was already open,
before the outage occurred. The meter can be programmed to reconnect the switch, after
restoration of power.
2.4.4.1 Enabling outage management and restoration in I210+
Reconnection after power restoration – The meter supports two programmable options to restore
the connection by turning the switch on.
Immediately after the power is restored.
Wait for a predefined time before turning the switch on. 
						

							GE Energy
GE I-210+cElectronic Meter
Product Description and Operation, Maintenance,and Upgrade Instructions
GEH-7101-2.00-127
3 Operating Instructions
3.1 Nameplate Information and Labels
The I-210+c™meter includes an ANSI-required nameplate. An area specified by ANSI shall be
available for customer information and bar code data when it is provided by the customer.
Meters that incorporate AMR devices will include the AMR device ID (or serial number, as
appropriate) either on the meter nameplate or on a separate nameplate (seeFigure 3).
Month and two-digit year of manufacture will be included along with the assembly.
NameplateMultiply Byshall be printed with the appropriate display multiplier filled in on any
factory-programmed meter with a display multiplier other than one.
Provision has been made to allow an additional nameplate and/or label for AMR devices per
FCC or other statutory guidelines.
SeeFigure 4andFigure 5for a graphic representations of the meter nameplate. The meter
nameplate is found on the front of the meter.
Figure 3 I-210+c™Meter Nameplate 
						

							GE I-210+cElectronic Meter
Product Description and Operation, Maintenance,and Upgrade Instructions
GE Energy
28GEH-7101-2.00-1
3.1.1 Nameplate Label Information
Figure 4 I-210+c™Meter Nameplate
The nameplate information is shown inFigure 4. The following numbered list coincides with the
numbers in the figure.
1. Multiply by constant
2. I-210+c™will be written on the nameplate.
3. Voltage transformer ratio
4. Current transformer ratio
5. Meter serial number
6. Utility information and bar code area
7. Bar code in human readable text
8. Month and two-digit year of manufacture
9. Assembly location 
						

							GE Energy
GE I-210+cElectronic Meter
Product Description and Operation, Maintenance,and Upgrade Instructions
GEH-7101-2.00-129
3.1.2 Detailed Nameplate Label Description
Figure 5 Detailed Nameplate Description
The numbered list below coincides with the numbers inFigure 5.
1. I-210+c™will be written on the nameplate.
2. Current class
3. Softswitch selection
4. Nominal Voltage
5. Number of wires for the metered service
6. ANSI C12.10 Form Number
7. Watt hour test constant
8. Watt hour constant
9. Test amperes
10. Nominal frequency
11. Catalog number
3.2 Display Information
A maximum of up to 75 items can be selected for display from a total of 397 different user-
selectable quantities. As the meter is very flexible, a wide range of quantities can be defined for
mapping to meter calculations and display. In the table below,UOMrefers toUnit of Measure, a
general term for measurements that can be displayed as defined by the meter program. UOM
quantities can be kWh or other integrating voltamp quantities (such as kVA) or voltages. 
						

							GE I-210+cElectronic Meter
Product Description and Operation, Maintenance,and Upgrade Instructions
GE Energy
30GEH-7101-2.00-1
Table 2User-Selected Display Information
Display Item Operational Modes Available Display Item Operational Modes Available
Current Season Previous Season
Maximum 1,2 UOM: Maximum 1,2 UOM:
Maximum Demand All Maximum Demand TOU
Maximum Demand Date TOU Maximum Demand Date TOU
Maximum Demand Time TOU Maximum Demand Time TOU
Maximum Demand Rate A,B,C,D TOU Maximum Demand Rate A,B,C,D TOU
Maximum Demand Rate A,B,C,D Date TOU Maximum Demand Rate A,B,C,D Date TOU
Maximum Demand Rate A,B,C,D Time TOU Maximum Demand Rate A,B,C,D Time TOU
Cumulative 1,2 UOM: Cumulative 1,2, UOM:
Cumulative Demand All Cumulative Demand TOU
Cumulative Demand Rate A,B,C,D TOU Cumulative Demand Rate A,B,C,D TOU
Continuously Cumulative 1,2 UOM: Summations 1,2, UOM:
Continuously Cumulative Demand All Total Summation TOU
Continuously Cumulative Demand Rate
A,B,C,DTOU Summation Rate A,B,C,D
Summations 1,2 UOM: Rolling Billing Period Demand 1,2 UOM:
Total Summation All Maximum Demand for Peaks 1 and 2 TOU
Summation Rate A,B,C,D TOU Maximum Demand Date for Peaks 1 and 2 TOU
Instantaneous:Maximum Demand Time for Peaks 1 and 2 TOU
Momentary Interval Demand All Maximum Demand Rate A,B for Peaks 1 and 2 TOU
Momentary Interval Power Factor AllMaximum Demand Rate A,B Date for Peaks 1
and 2TOU
Momentary Interval Va RMS fundamentalMaximum Demand Rate A,B Time for Peaks 1and 2TOU
plus harmonics All Cumulative Demand for Peaks 1 and 2 TOU
Momentary Interval VCRMS fundamental
plus
Cumulative Demand Rate A,B for Peaks 1 and
2TOU
harmonics (network meters only) AllLast Reset
Previous Interval 1,2 UOM:Maximum 1,2, UOM:
Previous Interval Demand All Maximum Demand All
Rolling Billing Period Demand 1,2 UOM:Maximum Demand Date TOU
Maximum Demand for Peaks 1 and 2 TOU Maximum Demand Time TOU
Maximum Demand Date for Peaks 1 and 2 TOU Maximum Demand Rate A,B,C,D TOU
Maximum Demand Time for Peaks 1 and 2 TOU Maximum Demand Rate A,B,C,D Date TOU
Maximum Demand Rate A,B for Peaks 1
and 2TOU Maximum Demand Rate A,B,C,D Time TOU
Maximum Demand Rate A,B Date forCumulative 1,2 UOM:
Peaks 1 and 2 TOU Cumulative Demand All
Maximum Demand Rate A,B Time forCumulative Demand Rate A,B,C,D TOU
Peaks 1 and 2 TOUSummations 1,2, UOM:
Cumulative Demand for Peaks 1 and 2 TOU Total Summation All
Cumulative Demand Rate A,B for Peaks 1
and 2TOU Summation Rate A,B,C,D TOU
Daily Maximum Demand TOURolling Billing Period Demand 1,2 UOM:
Daily Maximum Demand Time TOU Maximum Demand for Peaks 1 and 2 TOU
Daily Maximum Demand Rate A,B TOU Maximum Demand Date for Peaks 1 and 2 TOU