Measure electricity, gas and water with RFXPulse

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The RFXPulse can be used to measure electricity, gas, water usage or the pulse output of a device with a count output.

The RFXPulse is a module that can be inserted in the RFXMeter. http://www.rfxcom.com/sensors.htm#70095
This RFXPulse module allows you to measure:
• Pulses from a blinking LED’s (e.g. electricity meter),
• Reflection from a mirror or white field that is present on a digit in a gas meter (Dutch gas meter has a mirror),
• Pulses from a relay contact.

The LED pulse can be measured by using the photo sensor of the reflective-optical sensor. http://www.rfxcom.com/sensors.htm#70091 The LED in the reflective-optical sensor must be disabled by cutting the white/transparent wire in the jack plug.

The reflection of the mirror on the 6-digit in the Dutch gas meter can be measured using the reflective-optical sensor. It seems there are also UK gas meters with a white field in a digit that can be used by the reflective-optical sensor.

The pulse from a relay contact can be measured using the open-end cable. http://www.rfxcom.com/sensors.htm#70092 The relay contact must be a dry contact, in other words it must be a free contact without voltage present. There are water meters available with a pulse contact that can be connected to the RFXPulse using the open-end cable.

The RFXMeter can have 3 RFXPwr and/or RFXPulse modules inserted in any combination.

Bert