The new OptiSmart monitor from Current Cost represents 100% accuracy* for monitoring and opens capabilities to monitor whatever sensor type you wish.
OptiSmart works with meters that have an LED impulse. A magnet fits the OptiSmart sensor and transmitter to the meter, so no tools or knowledge is required to install. Check here for meter compatibility.
The sensor works by simply counting the LED flashes and the mini transmitter sends the meter reading to the EnviR monitor. Each LED impulse meter will have an IPU setting. The IPU indicates the value of an LED flash. Many meters work on a 1000 IPU value, meaning one LED flash is one watt hour. So 1/1000 of a kWh.
Tuning the OptiSmart transmitter is the same as all Current Cost transmitters, but with an added extra. The OptiSmart transmitter uses two appliances on the EnviR so you get a meter reading on one appliance and the "Energy Now" value of that meter reading displayed as watts on a different appliance. However, please note that the monitor does not display the meter reading on the LCD, only inside the XML output from the EnviR.
You could also choose to ignore the Energy Now function and so only use one appliance for the meter reading.
Installing OptiSmart
We recommend that you check with your energy supplier before fitting OptiSmart.
Some meters have an inbuilt magnet, so you can simply cover the LED with the OptiSmart transmitter. If your meter is not magnetised, you can use the self adhesive magnet included to mount the OptiSmart sensor on the face of the meter.
Once installed, the LED flash from the meter is shown on the OptiSmart sensor.
Tuning OptiSmart
Stage 1 - Tuning the meter reader
- On the EnviR monitor, select the appliance number you wish to use for the meter reading data by using the up and down arrows.
- On the OptiSmart mini transmitter, press and hold the tuning button.
- After 1 LED flash, release the tuning button. The LED on the mini transmitter will flash, indicating tuning mode.
- Press and hold the down button on the EnviR until the LED flashes on the front of the monitor and release the button.
- The EnviR will tune into the transmitter and will display "data" on the EnviR LCD display.
Stage 2 - Tuning for Energy Now
- On the EnviR, select a different appliance to use for displaying the "Energy Now" value by using the up and down buttons.
- On the OptiSmart mini transmitter, press and hold the tuning button.
- After 3 LED flashes, release the tuning button. The LED on the mini transmitter will flash, indicating tuning mode.
- The Energy Now value for the meter reading will now be displayed on the EnviR.
Underneath the Bonnet
The meter reading value is only available in the XML and is not displayed on the EnviR display. The XML structure for the OptiSmart meter reading is as follows:
<msg>
<src>CC128-v1.29</src>
<dsb>00001</dsb>
<time>10:58:35</time>
<tmpr>20.5</tmpr>
<sensor>1</sensor>
<id>03885</id>
<type>2</type>
<imp>0000015175</imp>
<ipu>1000</ipu>
</msg>
The XML follows the standard CC128 XML spec available here: http://www.currentcost.com/cc128/xml.htm
The XML also contains two new tags:
IMP - The IMP is the number of LED flashes. One LED flash increments this value by one.
IPU - The IPU indicates the value of an LED flash. A 1000 IPU value means one LED flash is one watt hour. So 1000 flashes is 1kWh
Sensor <ipu> starts at 0. No user action resets it. Maxes out at 4294967295, next increment overflows to 0.
What's next?
OptiSmart transmitters are already in the wild monitoring water meters using a reed relay switch along with the LED Impulse version. Simply replacing the sensor cable with a new sensor means that you will see a whole new range of monitoring scenarios available soon. Or you could mod your own sensor cable for your own needs.
We look forward to hearing about your usage scenarios or ideas for this device.
* 100% accuracy (relative to existing meter)
* Installation is to an approved meter
* Installation is carried out in accordance with our instructions