User's Manual
Part Number 220-008001 Gas IMU Quick Install
Components and Tools
The components and tools you need to install the IMU are:
Figure 1. IMU Components
Figure 2. Service Magnet
Gas IMU Quick Install
Always follow applicable standards for safety. If you smell
gas, report it to the utility. Do not use power tools. Refer to
the meter documentation for further information.
The antennaof thistransmitter must not be co-located or operating in
conjunction with any other antenna or transmitter.
The device should be installed so that people will not come within 20 cm (8
in.) of the antenna.
This equipment has been tested and found to comply with Part 15 of the FCC
Rules. This equipment generates, uses and can radiate radio frequency
energy, and if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is
no guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on,
the user is encouraged to try to correct the interference by one or more of
the following measures:
z Reorient or relocate the receiving antenna.
z Increase the separation between the equipment and receiver.
z Connect the equipment into an outlet on a circuit different from that
to which the receiver disconnected.
z Consult the dealer or an experienced Radio/TV technician for help.
Modifications to the IMU not expressly approved by Silver
Spring Networks may void your authority to operate the
IMU.
To remove the existing index and prepare the meter:
1. Remove the existing index cover and index from the
meter.
2. Clean the meter index area and make sure to remove
any remaining parts of the old gasket.
Attach the tamper magnet assembly:
1. Attach the tamper magnet assembly to the meter as
shown.
On an American meter, attach the magnet
assembly so that the protrusion holding the magnet
points down and to the left and the gap in the
IMU Components
Component Qty. Size Part Numbers
SSN IMU 1 n/a 221-010001 (Am)
222-010001 (RW)
Index cover 1 n/a 976-000195 (Am)
976-000196 (RW)
Index cover
screws
4
1/4
-20” x 2
1/4
”
10-24 x 2
1/4”
901-000052 (Am)
901-000053 (RW)
Index screws 2 8-32 x
3/16”
6-32 x
3/4”
901-000054 (Am)
901-000057 (RW)
Red tamper
seals
2 n/a 976-000204
Tamper mag-
net assembly
1 n/a 976-000212 (Am)
976-000213 (RW)
Tools Required
Tool Qty
Flathead screw driver 1
Phillips screw driver 1
Nut driver 1
Awl 1
Scraper 1
Wire brush 1
Service magnet 1
For American meters
For Rockwell meters
For American meters
For Rockwell meters