Applications, General, Metering Technology

Cable and Splicing Guidelines For Meter Signal Wires

At times, it’s necessary to splice a meter’s integral signal cable with an extension cable to increase the overall cable length.

For splice hardware, I recommend the UY2 Scotchlok connectors by 3M:  Datasheet Link

For 3-conductor extension cable, I recommend 5521FE cable by Belden (Part No. 5521FE 008 1000): Datasheet Link.  Note that this Belden cable has three (3) solid, 22-gauge, copper conductors with color-coded insulators (RED, BLACK, WHITE), an outer foil shield and a drain wire.  This cable is riser-rated (CMR).  The drain wire should be tied to ground on only one end (preferably the control cabinet end).

For 4-conductor extension cable (for certain Radio-Read Filter applications), I recommend 5522FL cable by Belden (Part No. 5522FL 002 1000): Datasheet Link.  Note that this Belden cable has four (4) solid, 22-gauge, copper conductors with color-coded insulators (RED, BLACK, BLUE, BROWN), an outer foil shield and a drain wire.  This cable is riser-rated (FPLR). The drain wire should be tied to ground on only one end (preferably the control cabinet end).

An alternate 4-conductor extension cable that features stranded conductors (for certain Radio-Read Filter applications) is the 5502FE cable by Belden (Part No. 5502FE 008 1000): Datasheet Link.  Note that this Belden cable has four (4) stranded, 22-gauge, copper conductors with color-coded insulators (RED, GREEN,BLACK,WHITE ), an outer foil shield and a drain wire.  This cable is riser-rated (CMR). The drain wire should be tied to ground on only one end (preferably the control cabinet end).  However, keep in mind that the other solid conductor-type cable will likely work better with Scotchlok splicers.

All of the above hardware may be purchased from Newark Electronics or other electronic supply vendors.

Applications, General, Metering Technology

Connecting an Elster-AMCO evoQ4 MagMeter to the EtherMeter

The evoQ4 MagMeter by Elster-AMCO offers three (3) SCADA signal connection methods:

  • Elster-AMCO encoder protocol (K-Frame)
  • Sensus encoder protocol
  • Pulse-output

The EtherMeter is capable of interfacing with each of these methods.  However, this article will focus for now on the Elster-AMCO protocol.

Connecting an Elster-AMCO evoQ4 MagMeter to an EtherMeter is straightforward.  First, the Elster-AMCO protocol encoder module should be installed onto the meter:

Module_Art_003

(Click to zoom.)

The following photos demonstrate the above procedures:

Step_01

Step_02_03

Step_04

Step_05

Assembled_View

After the module is successfully installed, follow these simple steps:

1. Strip away a couple inches of outer cable jacket, exposing the three inner conductors, and connect them to the EtherMeter.  When using meter channel #1, connect according to the following key: WHITE (Terminal 14), RED (Terminal 15), BLACK (Terminal 16).

Alternatively, when using meter channel #2, connect according to the following key: WHITE (Terminal 17), RED (Terminal 18), BLACK (Terminal 19).

Apply power to the EtherMeter, and watch the EtherMeter auto-detect the MagMeter:

EtherMeter_evoQ4_001

The evoQ4 test meter used in this article was provided courtesy of Elster-AMCO Water.

Applications, General, Metering Technology

Connecting an Elster-AMCO (ABB-Kent) ScanCoder Flow Meter Register to the EtherMeter

Connecting an Elster-AMCO (ABB-Kent) ScanCoder water meter register to an EtherMeter is straightforward.

ABB_ScanCoder_001

Just follow these simple steps:

1. Expose the communication wires by cutting the cable short of the ERT communication adapter:

ABB_ScanCoder_002 

2. Strip away a couple inches of outer cable jacket, exposing the three inner conductors, and connect them to the EtherMeter.  When using meter channel #1, connect according to the following key: BLACK (Terminal 14), RED (Terminal 15), BARE-SHIELD (Terminal 16).

Alternatively, when using meter channel #2, connect according to the following key: BLACK (Terminal 17), RED (Terminal 18), BARE-SHIELD (Terminal 19).

Apply power to the EtherMeter, and watch the EtherMeter auto-detect the meter register:

ABB_ScanCoder_003