Powelectrics Metron2 Quick Installation Manual

FOR TANK LEVEL MONITORING
How it works.....
A pressure sensor is dropped to the bottom
of the tank and it measures the pressure ex-
erted by the column of liquid above it. It
compensates for the changes in atmospheric
pressure. The Metron2 periodically powers
the sensors, scales the reading into the right units and transmits to a server via
the mobile phone network. There can be 4 sensors connected to each Metron2.
How to install.....
1. Lower the sensor to the bottom of the tank—hopefully there's a spare
opening, if not you'll need to drill one. Make sure you seal the opening so
water doesn't get into the tank. If there is a lot of silt in the bottom of the
tank consider fixing the sensor so it sits above this.
2. If you need to extend the cable then the best cable to 2 use is 2 core twist-
ed and screened. The voltage is only going to be 21.6 volts and the current a
maximum of 20mA. Fit a waterproof junction box to join the 2 cables.
3. Mount the Metron2—you need to consider:
how you are going to power it? If solar you need a clear view of the

southern sky
Will people need to read the display?

Is there sufficient mobile phone signal?

Once mounted cover the fixing holes with blanking plugs.—see drawing on
page 2 (labelled 'B').
4. Connect the sensor(s) - see page 2 for some examples.
5. Fit blanking plugs to unused gland entries to ensure weather proof.
6. Connect power (check version) - see page 2 for connection details.
7. Enter the PIN (1234), select 'force transmit' and watch the unit communi-
cate the readings to the server.
QUICK INSTALLATION GUIDE
MAKE SURE THE SENSOR IS AT THE BOTTOM OF THE
TANK—YOU MAY NEED TO WEIGH IT DOWN
REV 1.0