User's Manual

The following information contains installation instructions for the
Invensys RadioRead
T
Meter Transceiver Unit (MXU). The wiring con-
nections are the same for both inside and pit set installations. Tech-
niques may be different for the actual MXU placement in each type of
installation.
Note:
This installation sheet is only for installation of the RadioRead
MXU. For instructions on installing other AMR devices, please request
and refer to the individual installation instructions for those devices.
SR II
®
security screw socket with 1/4" nut driver or ratchet wrench
3M Scotchlok
®
UY-2 butt connector “gel-caps”
3M Scotchlok
®
E-9Y stepped jaw crimping tool with wire cutter
Wire stripper tool
Screwdrivers (Phillips and standard blade heads)
Power drill and bit (1/4")
8 x 1" sheet metal screws
1/2" Electrical Metallic Tubing (EMT)
Conduit cutting tool
Hammer
Conduit driver (available from Invensys)
Three-conductor solid wire (Invensys specification)
I
MPORTANT
R
ECOMMENDED
T
OOLS
AND
M
ATERIALS
1 of 2
MXU Model 510 - Installation Wiring Diagram
The MXU also requires proper programming of each port to match the
device that is connected to the respective port. Refer to Invensys Pro-
gramming Manual AMR-988.
The MXU wiring instructions assume the utility meter with an encoder
register or MultiRead module has been installed and the proper wire
has been run to the MXU installation location. Three-conductor, 22
gauge, solid conductor cable is recommended. (For meter installation,
refer to the installation information included in Invensys meter shipping
cartons.)
1. Using the SR II security socket with ratchet wrench or nut driver,
open the MXU enclosure by removing SR II type security screw.
Bottom part of enclosure will contain the MXU battery and top part
the electronics and connection wires. Connect the three wires from
the encoder register or MultiRead module to the matching color
wires on the MXU and the desired port. If not already done, strip
approximately 2"
off outer jacket
of the encoder wire cable. The
wire colors for each unit should be
green
,
red
, and
black
. Insert two
matching color wire ends –
red
to
red
,
green
to
green
, and
black
to
black
into a UY-2 gel-cap with the color button of gel-cap facing
away. (This provides a better view of wire positions inside the clear
plastic gel-cap enabling the installer to see the wires are com-
pletely and properly inserted.)
Note: For the Schlumberger Proread encoder, the color coded
wire connections are not standard – For Proread, connect the
MXU red to Proread black, MXU green to Proread red, and MXU
black to Proread green.
Using gel-cap pliers, squeeze the gel-cap. This will splice the two
wires and release the waterproof gel to seal the connection. The
splice can be checked by pulling gently on the gel-cap while hold-
ing the wires to be sure they are tight and secure. Repeat Step 2
instructions for the remaining two wire connections. Repeat con-
nections to a second port, if required.
* If any of the wire connections are not being used they should
be capped at the end with a gel-cap. This is to prevent water
intrusion via wicking through the exposed wire ends. The
red
,
green
, and
black
wires must be gel-capped individually. The
green
with
white striped
TouchRead sensor wires can be gel-
capped together.
Note: A Schlumberger Proread (ARB VI) register must be con-
nected directly to an MXU port. The Proread register will not work
through a MultiRead module connected to an MXU.
2. Connect the battery to the MXU electronics. Using the gel-cap con-
necting technique described in Step 2 above, connect the
red
and
white stripe
wire from the battery to the
red
and
white stripe
wire
from the MXU electronics. Repeat the procedure for the
black
and
white stripe
wire from the battery to the
black
and
white stripe
wire
from the MXU.
Caution: DO NOT cross connect the black and white and red and
white stripe wires of the MXU and battery pack as this may cause
damage to the MXU electronics.
If using the optional TouchRead
®
connection, go to Step 3. If not,
skip to Step 4.
3. (Optional) TouchRead
®
Connection (available for Invensys register
encoders only) – The MXU includes a built-in TouchRead splitter
connection to allow the encoder register to be interrogated by both
RadioRead equipment and a remote TouchRead System sensor.
I
NSTALLATION
- W
IRING
I
NSTRUCTIONS
The Model 510 MXU incorporates a two-port interface design. Hard-
wire connections to either port from a compatible utility meter or Multi-
Read module is the same for each port.
Note: the wiring is different when connecting a Schlumberger
Proread (ARB-VI) encoder to a port.
G
ENERAL
I
NFORMATION
INSTALLATION INSTRUCTIONS
Invensys RadioRead
T
Meter Transceiver Unit (MXU)
Model 510

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