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Model: ETLW

The eGauge Ambient Temperature Sensor (ETLW) is used in conjunction with the Sensor Hub and an EG4xxx model meter (Core or Pro) to record temperature data from systems such as HVAC systems, cold storage, data centers and other controlled environments. For fluid temperature monitoring, see the Temperature Probe Sensor (ETN100).

Prerequisites:

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

Important Installation Notes

• Temperature range: -30 .. +120° C
• 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. Every Sensor Hub compatible sensor sold by eGauge Systems comes with a straight-through RJ-11 cable.
• 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, both RJ11 and RJ45 cables should be straight-through cables, with the same color order on both ends.

Instructions: 

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

Step 1: in the location to be monitored, connect the ETLW 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: Configure the sensor in the eGauge configuration settings. Please see this article for more information regarding configuration of CTid sensors.

Step 3: Add a register to the meter configuration to store the ETLW temperature reading as shown:

Troubleshooting and Tips

• Issue: My sensor is not scanning
  • Solution: Be sure the Sensor Hub is powered by 5 Vdc and that the selection switch on the port being used is in the Left position.
  • Solution: Make sure the correct color plug from the Sensor Hub breakout cable is being used. Plugs match the same color port on the sensor hub.

Additional Resources

Typical Setup Diagram