How To: Install the Analog Input Sensor (ELV2)

Installation steps and resources for the ELV2 Analog Input Sensor

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Model: ELV2

The eGauge 2V Analog Input is used in conjunction with the Sensor Hub and an EG4xxx model meter (Core or Pro) which allows EG4xxx meters to read 0 -- 2V low-impedance analog values or states from standard 2-wire dry contacts such as relays.

CTid

The Sensor Hub and all related CTid enabled sensors are compatible with EG4xxx and newer and will not work correctly with EG3xxx or earlier model eGauge meters.

Prerequisites:

Necessary hardware (not included):
- EG4xxx or newer eGauge meter
- eGauge Sensor Hub (ESH044)

Important Installation Notes

Signal input: 0-2 Vdc dry contact sensors with ≤ 50Ω output.
Only use straight-through RJ11 cables to connect powered sensors to the Sensor Hub. See this article for more information on verifying the correct RJ-11 wiring.
It is not advisable to extend the RJ11 leads from the Sensor to Sensor Hub. It is acceptable to use a longer RJ45 cable from the Sensor Hub to the eGauge.
If RJ11 cable between Sensor and Sensor Hub must be extended, it is advisable to use twisted pair wires, such as a CAT5 cable with RJ11 plugs (most commonly used for DSL modems).
If terminating own cables, RJ11 cables should be straight-through cables, with the same color order on both ends. RJ-45 cable should be wired to T-568B as shown on the Sensor Hub.

Instructions:

Before beginning, check that you have all of the included parts:

Qty	Item
1	ELV2 Sensor
1	7' RJ-11 cable
1	3-pin input plug

ELV2 Sensor with installed 3-pin input plug and included RJ-11 cable

Step 1: Connect the ELV2 Sensor to an available RJ11 port on your Sensor Hub using the included RJ11 cable. Be sure to adjust the selector switch on the Sensor hub port to the left and plug the breakout cable2-pin connector with the same color into an available sensor port on your eGauge. See: Sensor Hub Installation for more details.

Step 2: Connect the ELV2 to the 0-2V sensor output using the signal and ground ports on the ELV2. The 5V pin is unused.

ELV2 Port	Connect
SIG	positive 0-2 Vdc dry contact or analog sensor output
⏚	negative 0-2 Vdc dry contact or analog sensor output
+5V	unused

Step 3: Configure the sensor in the eGauge configuration. Please see this article for more information regarding configuration of CTid sensors.

Step 4: Add a register to the meter configuration to store the ELV2 reading as shown below:

The register to hold the ELV2 reading should be set to DC-only (mean) value

Troubleshooting and Tips

Issue: What do I connect to the +5V port on the ELV2?
- Solution: This port is unused on this sensor. eGauge produced sensors use the same form-factor case so there are some cases where all ports are not used.

Additional Resources

Documents & Downloads

Typical Setup Diagram