7
Mobile application
• Install the mobile application (PowerMon) on your device. This is available for free on Google
Play Store and Apple App Store. Once the application starts it should discover the PowerMon
devices that are in range.
• Tap on a device to connect to it. If multiple devices show up and you are not sure which device
is the one you wish to connect to, you can use the RSSI indicator and position the mobile device
very close to the PowerMon you would like to identify. The RSSI will indicate a much stronger
signal for that device. RSSI values are negative. -30dBm is a stronger signal than -60dBm.
• Once connected, tap on the top right corner on the 3 dots (application menu) and then tap on
”About”. Tap on the rename icon to rename the device. The default name is “DCPM”. Note that
the name cannot be longer than 8 characters.
• This would also be a good time to update the firmware if any update is available. During the
firmware update process, the power to the device should not be interrupted.
• Tap on the application menu again and then “Configuration”. Configure the device
appropriately (external shunt resistance value, voltage drop range). From the factory, the
device is already configured to use the integrated shunt.
Offset zero-ing
• Because of the extremely low voltage drop across the shunt resistor that the PowerMon must
sense, offset is inevitable. If the current measurement displayed by the app is not zero even
though the actual current is, this is called an offset. It can be zeroed.
• Make sure the current that passes through the device (terminals 9 and 10) or through the
external shunt is zero (no current). The best way to make sure this happens is to disconnect the
wire from the load side of the shunt.
• Tap and hold on the current measurement and select “Zero Current”. This will bring the
measurement value to zero (zero the offset).
Calibration (optional)
• The only measurement that can be calibrated by the user is the current. If a better accuracy
than an uncalibrated device offers (about 1%) is required, proceed with the device calibration.
The offset should be zeroed before calibrating.
• Apply a known current (accurately measured using an external amp-meter)
• Tap and hold on the current measurement and select “Calibrate Current”
• Type the actual value of the current as indicated by the amp-meter and press OK.
To Next Page
Loading...
Need help?
General