Elster EA_Gatekeeper User manual

October 2010 IL42-5014B
Elster
Raleigh, North Carolina USA
[phone] (US toll free)
[phone] (Canada)
[email protected]
www.elster.com
EA_Gatekeeper firmware version 6
Upgrade/RMA installation instructions
General
WARNING
!
Do not disassemble the EA_Gatekeeper enclosure, service the gatekeeper unit, or service the components inside the unit
with power present. Use authorized utility procedures to install and service equipment. Dangerous voltages are present.
Equipment damage, personal injury, and death can result if safety precautions are not followed.
The leaflet contains instructions for installing the electronic assembly for the gatekeeper firmware version 6 in the following
EA_Gatekeeper models.
■EA_Gatekeeper with an AC power supply and battery backup
■EA_Gatekeeper with an AC power supply only
■EA_Gatekeeper with a solar power supply
In addition, this leaflet contains each model may use one of the following communication options:
■Ethernet
■Cellular modem
■Telephone (POTS/PSTN) modem
■RS-232
Unpacking the upgrade kit
Visually inspect all parts for any damage during shipment, contacting Elster as appropriate.
NOTICE
The upgrade kit contains components that are sensitive to electrostatic discharge (ESD). When installing, servicing, or
removing components, connect to ground with a wrist strap and follow safe ESD procedures. Failure to properly ground
both you and the electronic devices, or failure to follow safe ESD procedures to avoid ESD, can result in equipment damage.
There is an upgrade kit for each communication option supported by the different EA_Gatekeeper models.

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Ethernet and cellular modem communication options
The Ethernet and cellular modem communication options kit contain identical components.
Telephone (POTS/PSTN) modem communication option
The telephone modem communication option kit contains the following components.
RS-232 communication option
The RS-232 communication option kit contains the following components.
*The A3 ALPHA meter electronic assembly is provided with pre-formed heat shrink tubing already assembled on the ends
of the DC leads. This must remain on the ends of these leads until the electronic assembly is installed in the field. Additional
heat shrink tubing is provided in the event that configuration takes place separately from installation, and extra tubing is
needed to secure the DC wires from shorting during transport to the installation site.
Style number Description
5D25648G91 A3 ALPHA® meter electronic assembly
1C11994G01 RJ-45 communication cable
7S1734H001 DC power cable (not required or used in EA_Gatekeeper with AC power supply only)
7S1755H001 Retention tape
7S1750H00X Model number label
7S1752H00X FCC ID label
7S1052H001 FCC ID label clear UV overlay
3A35340H01 Formed heat shrink tubing*
Style number Description
5D25648G91 A3 ALPHA meter electronic assembly
1B12129G06 RJ-11 communication cable
7S1734H001 DC power cable (not required or used in EA_Gatekeeper with AC power supply only)
7S1755H001 Retention tape
7S1750H00X Model number label
7S1752H00X FCC ID label
7S1052H001 FCC ID label clear UV overlay
3A35340H01 Formed heat shrink tubing*
Style number Description
5D25648G91 A3 ALPHA meter electronic assembly
4074B15G05 RS-232 communications cable
7S1734H001 DC power cable (not required or used in EA_Gatekeeper with AC power supply only)
7S1755H001 Retention tape
7S1750H00X Model number label
7S1752H00X FCC ID label
7S1052H001 FCC ID label clear UV overlay
3A35340H01 Formed heat shrink tubing*

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EA_Gatekeeper with AC power and battery backup instructions
WARNING
!
Do not disassemble the EA_Gatekeeper enclosure, service the gatekeeper unit, or service the components inside the unit
with power present. Use authorized utility procedures to install and service equipment. Dangerous voltages are present.
Equipment damage, personal injury, and death can result if safety precautions are not followed.
The instructions for removing the electronic assembly are the same for all communication options. See Figure 1 for an
illustration of the Ethernet and telephone (POTS/PSTN) communication options; see Figure 2 for the cellular modem
communication option; see Figure 3 for the RS-232 communication option. The numbered items in all figures refer to the
following removal instructions:
How to remove the existing module
1. Switch the AC circuit breakers to the “off” position.
2. Remove the fuse from the fuse holder.
3. Disconnect the communications or crossover (for cellular modem styles) cable from the surge suppressor.
4. If present, remove the Kapton tape securing the electronic assembly to the meter base (approximately a 2-inch
strip located at the 12 o’clock position).
5. Disconnect the red DC power cable by loosening the terminal block that holds the cable.
6. Rotate the electronic assembly counterclockwise and gently lift it from the meter base.
7. Disconnect the AC voltage harness (Figure 4) and the antenna isolation board RF cable (Figure 5) from the
electronic assembly.
8. Remove the electronic assembly with the DC power cable and communication cable still attached to the electronic
assembly.
How to install the RMA/upgrade kit
1. Unpack the RMA/upgrade kit.
2. Remove the tape securing wires to the side of the electronics module housing. Be sure to keep the formed heat
shrink tubing on the bare ends of the DC power cable.
3. Route the DC power cable to the terminal strip hook up location. Remove the formed heat shrink tubing from the
DC power cable. Press the bare ends of both the white wire and red wire to the enclosure back panel and hold for
a few seconds.
■Connect the white wire to the green terminal
■Connect the red wire to the gray terminal
4. Connect the following cables in the order specified:
a. Connect the antenna cable from the isolation board to the electronics module.
b. Connect the communications cable to the surge suppressor or the crossover cable used for modem
applications.
c. Connect the AC voltage harness from the enclosure to the electronics module.
5. Place the Kapton tape at the 12 o’clock position to secure the electronic assembly to the meter base.
6. Connect the communications or crossover (for cellular modem styles) cable to the surge suppressor.

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7. Insert the fuse into the fuse holder.
8. Switch the AC breakers to the “on” position.
9. Verify that the gatekeeper is operating.
NOTICE
If the carryover error (Er1 000001) or the clock error (Er3 030000) are displayed when the electronic assembly is powered on,
the errors should be reset using Metercat™software.
After you install the electronic assembly for the gatekeeper firmware version 6, you must attach new labels to the
enclosure.
1. Attach the new model number label, covering the existing model number label. The model number label is
located inside the enclosure door. If an ESN is present, transfer this number to the new label.
2. Remove the clear overlay to FCC label and the existing FCC label. Attach the new FCC label and apply the new
clear overlay. The FCC label is located on the outside of the enclosure.

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Figure 1. Ethernet and telephone modem options
1
2
5
6
1Circuit breakers
3
4
2Fuse holder
3Communication cable
4Kapton tape (if present)
5DC power cable and terminal block
6Electronic assembly for collector

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Figure 2. Cellular modem option
1Circuit breakers
1
2Fuse holder
2
3
3Communication cable
4
4Kapton tape (if present)
5
5DC power cable and terminal block
6
6Electronic assembly for collector

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Figure 3. RS-232 communication option
Figure 4. Location of AC voltage harness
1
2
3
4
5
6
1Circuit breakers 4Kapton tape (if present)
2Fuse holder 5DC power cable and terminal block
3Communication cable 6Electronic assembly for collector
AC voltage harness

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Figure 5. Location of RF isolation cable
EA_Gatekeeper with only AC power
WARNING
!
Do not disassemble the EA_Gatekeeper enclosure, service the gatekeeper unit, or service the components inside the unit
with power present. Use authorized utility procedures to install and service equipment. Dangerous voltages are present.
Equipment damage, personal injury, and death can result if safety precautions are not followed.
Note. The upgrade kit ships the electronic assembly with a DC power cord attached (see Figure 6). The DC power cord is not
used in or required by the EA_Gatekeeper with only AC power. Remove the DC power cord and discard it before continuing
with the upgrade.
RF isolation cable

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Figure 6. DC power cable
DC power cable

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Ethernet, telephone (POTS/PSTN), and RS-232 communication options
The instructions for removing the electronic assembly vary depending on the communication option. Use the following
procedure while referring to the figures beginning with Figure 7 for Ethernet and telephone communication options and
Figure 8 for RS-232 communication (Note: the numbered items in the figures correlate to the removal procedure):
How to remove the existing module
1. Disconnect the communication cable from the surge suppressor.
2. If present, remove the Kapton tape securing the electronic assembly to the meter base (approximately a 2-inch
strip located at the 12 o’clock position).
3. Rotate the electronic assembly counterclockwise and gently lift it from the meter base.
4. Disconnect the antenna cable from the electronic assembly (see Figure 9).
5. Disconnect the AC voltage harness (see Figure 10).
6. Remove the internal antenna from the electronic assembly.
a. Unlatch latches A, B, C, and D (see Figure 11) and gently pry open both sides of the antenna about ½ inch.
b. Press on the left and right sides of the antenna slightly to disengage the lower left and right antenna latches.
c. With a small flat blade screwdriver, gently pry up and disengage the latch E (see Figure 11).
d. Move the internal antenna assembly toward the top using a hinge-like motion about the top antenna
mounting hole. The antenna should then pull easily from its mounting hole and can be removed from the
electronic assembly.
7. Remove the existing electronic assembly with the communication cable still attached to the electronic assembly.
How to install the RMA/upgrade kit
1. Unpack the RMA/upgrade kit.
2. Remove the tape securing wires to the side of the electronics module housing. Remove and discard DC cable from
the kit.
3. Connect the following cables in the order specified:
a. Connect the antenna cable from the isolation board to the electronics module.
b. Connect the communications cable to the surge suppressor or the crossover cable used for modem
applications.
c. Connect the AC voltage harness from the enclosure to the electronics module.
4. Re-attach the internal antenna to the electronic assembly.
a. Move the internal antenna assembly and engage latch E using a hinge-like motion about the top of the
antenna mounting hole.
b. Engage latches A, B, C, and D by gently snapping both sides of the antenna.
5. Place the Kapton tape at the 12 o’clock position to secure the electronic assembly to the meter base.
6. Connect the communications or crossover (for cellular modem styles) cable to the surge suppressor.
7. Insert the fuse into the fuse holder.
8. Switch the AC breakers to the “on” position.
9. Verify that the gatekeeper is operating.
NOTICE
If the carryover error (Er1 000001) or the clock error (Er3 030000) are displayed when the electronic assembly is powered on,
the errors should be reset using Metercat™software.

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After you install the electronic assembly for the gatekeeper firmware version 6, you must attach new labels to the
enclosure.
1. Attach the new model number label, covering the existing model number label. The model number label is
located inside the enclosure door.
2. Remove the clear overlay to FCC label and the existing FCC label. Attach the new FCC label and apply the new
clear overlay. The FCC label is located on the outside of the enclosure.
Figure 7. Ethernet and telephone modem options
1
2
3
1Communication cable
2Kapton tape (if present)
3Electronic assembly for collector

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Figure 8. RS-232 communication option
Figure 9. Internal antenna cable
1
2
3
1
2
3
Communication cable
Kapton tape (if present)
Electronic assembly for collector
Antenna cable

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Figure 10. AC voltage harness
Figure 11. Internal antenna latches
AC voltage harness
Internal antenna
TOP
to Latches
A
B C
D
E
A E

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Cellular modem communication option
For the cellular modem communication option, use the following procedure while referring to (Note: the numbered items in
the figures correlate to the removal procedure):
How to remove the existing module
1. Switch the AC circuit breakers to the “off” position.
2. Disconnect the communication cable from the surge suppressor.
3. If present, remove the Kapton tape securing the electronic assembly to the meter base (approximately a 2-inch
strip located at the 12 o’clock position).
4. Rotate the electronic assembly counterclockwise and gently lift it from the meter base.
5. Disconnect the AC voltage harness.
6. Remove the electronic assembly with the communication cable still attached to the electronic assembly.
How to install the RMA/upgrade kit
1. Unpack the RMA/upgrade kit.
2. Remove the tape securing wires to the side of the electronics module housing. Remove and discard DC cable from
the kit.
3. Connect the following cables in the order specified:
a. Connect the antenna cable from the isolation board to the electronics module.
b. Connect the communications cable to the surge suppressor or the crossover cable used for modem
applications.
c. Connect the AC voltage harness from the enclosure to the electronics module.
4. Place the Kapton tape at the 12 o’clock position to secure the electronic assembly to the meter base.
5. Connect the communications or crossover (for cellular modem styles) cable to the surge suppressor.
6. Insert the fuse into the fuse holder.
7. Switch the AC breakers to the “on” position.
8. Verify that the gatekeeper is operating.
NOTICE
If the carryover error (Er1 000001) or the clock error (Er3 030000) are displayed when the electronic assembly is powered on,
the errors should be reset using Metercat™software.
After you install the assembly for gatekeeper firmware version 6, you must attach new labels to the enclosure.
1. Attach the new model number label, covering the existing model number label. The model number label is
located inside the enclosure door. If an ESN is present, transfer this number to the new label.
2. Remove the clear overlay to FCC label and the existing FCC label. Attach the new FCC label and apply the new
clear overlay. The FCC label is located on the outside of the enclosure.

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Figure 12. Cellular modem model
Figure 13. AC voltage harness
1
2
3
4
1Circuit breakers
2Communication cable
3Kapton tape (if present)
4Electronic assembly for collector
AC voltage harness

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EA_Gatekeeper with solar power
WARNING
!
Exercise caution when servicing an EA_Gatekeeper with the solar powered option. The EA_Gatekeeper with the solar
powered option may be installed on or near high voltage equipment. Always use authorized utility procedures to install
and service equipment. Failure to follow all safety precautions can result in equipment damage, personal injury, or death.
The instructions for removing the electronic assembly are the same for all communications options. See Figure 14 for an
illustration of the Ethernet and telephone (POTS/PSTN) communication options; see Figure 16 for the cellular modem option.
The numbered items in the figures refer to the following removal instructions:
How to remove the existing module
1. Remove all fuses from all 4 fuse holders.
2. Disconnect the communications or crossover (for cellular modem styles) cable from the surge suppressor.
3. If present, remove the Kapton tape securing the electronic assembly to the meter base (approximately a 2-inch
strip located at the 12 o’clock position).
4. Disconnect the red DC power cable by loosening the terminal block that holds the cable.
5. Rotate the electronic assembly counterclockwise and gently lift it from the meter base.
6. Disconnect the AC voltage harness (Figure 4) and the antenna isolation board RF cable (Figure 5) from the
electronic assembly.
7. Remove the electronic assembly with the DC power cable and communication cable still attached to the electronic
assembly.
How to install the RMA/upgrade kit
1. Unpack the RMA/upgrade kit.
2. Remove the tape securing wires to the side of the electronics module housing. Be sure to keep the formed heat
shrink tubing on the bare ends of the DC power cable.
3. Route the DC power cable to the terminal strip hook up location. Remove the formed heat shrink tubing from the
DC power cable. Press the bare ends of both the white wire and red wire to the enclosure back panel and hold for
a few seconds.
■Connect the white wire to the green terminal
■Connect the red wire to the gray terminal
4. Connect the following cables in the order specified:
a. Connect the antenna cable from the isolation board to the electronics module.
b. Connect the communications cable to the surge suppressor or the crossover cable used for modem
applications.
5. Place the Kapton tape at the 12 o’clock position to secure the electronic assembly to the meter base.

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6. Insert all 4 fuses into the 4 fuse holders.
7. Verify that the gatekeeper is operating.
NOTICE
If the carryover error (Er1 000001) or the clock error (Er3 030000) are displayed when the electronic assembly is powered on,
the errors should be reset using Metercat™software.
Figure 14. Ethernet and telephone (POTS/PSTN) options
1Fuse holders
2Communication cable
3Kapton tape (if present)
4Electronic assembly for collector
1
2
3
4

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Figure 15. RS-232 communication option
1
2
3
4
1Fuse holders
2Communication cable
3Kapton tape (if present)
4Electronic assembly for collector

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Figure 16. Cellular modem option
Figure 17. RF isolation cable
1Fuse holders
Communication cable
Kapton tape (if present)
Electronic assembly for collector
2
3
4
1
23
4
RF isolation cable

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DISCLAIMER OF WARRANTIES AND LIMITATIONS OF LIABILITY
There are no understandings, agreements, representations, or warranties either express or implied, including warranties of merchantability or
fitness for a particular purpose, other than those specifically set out by any existing contract between the parties. Any such contract states the entire
obligation of the seller. The contents of this document shall not become part of or modify any prior existing agreement, commitment, or relationship.
The information, recommendations, descriptions, and safety notices in this document are based on Elster experience and judgment with respect to
operation and maintenance of the described product. This information should not be considered as all-inclusive or covering all contingencies. If
further information is required, Elster should be consulted.
No warranties, either expressed or implied, including warranties of fitness for a particular purpose or merchantability, or warranties arising from the
course of dealing or usage of trade, are made regarding the information, recommendations, descriptions, warnings, and cautions contained
herein.
In no event will Elster be responsible to the user in contract, in tort (including negligence), strict liability or otherwise for any special, indirect, incidental,
or consequential damage or loss whatsoever, including but not limited to: damage or loss of use of equipment, cost of capital, loss of profits or
revenues, or claims against the user by its customers resulting from the use of the information, recommendations, descriptions, and safety notices
contained herein.
Elster
Raleigh, North Carolina USA 
*IL42-5014B*
© 2010 by Elster
All rights reserved.
Printed in the United States.
Notes: