Installation Step By Step for the Emlite EMA1 GSM Meter

These instructions can be downloaded in a PDF document here.


Before Installation

Establish a suitable location for the meter where it will have sufficient GSM signal quality

You should use a GSM signal analyser as near as possible to where the meter will be installed to check for signal quality on at least 1 network.

The Emlite meter comes with an activated network roaming SIM card that can enables the meter to communicate using any available UK network operator.  The meter will scan for available networks and use the strongest available to communicate with the data collection server.

Mounting the meter

The meter must be securely mounted to a wall or meter board.

a.   Unscrew and remove the lower front meter panel to expose the terminal connections.

b.   Mount the meter using a suitable round headed screwdriver that is fitted to the wall or meter board. The width of the slot in the hanging bracket is 5mm.

c.     The screw depth should be adjusted so that the head fits snugly under the hanging point and the meter is held firm against the wall or board.

d.    Finally, the meter should be firmly screwed to the wall or board using the two mounting holes located under the terminal cover

The meter should be installed indoors or in an IP rated cabinet.

The meter should not be in an enclosed metal container unless an external antenna is being fitted.

Confirming GSM Communications

Confirm signal strength is 13 or higher

After installing the meter, it can take up to 5 minutes for the meter to find a GSM network. Press the ‘Display Cycle’ button to show the GSM signal quality. If the display shows signal less than 13 you will need to install an external antenna to improve the signal. The external antenna connects to the SMA socket on the side of the unit. Recheck the GSM signal after installing the signal booster.

If the signal is still below 14 the location may not be suitable for the installation of this meter.

Once you have established that there is sufficient GSM signal quality, complete the system installation.

After installation the LED lights on the top half of the meter on the communications module with flash in the following manner.

The internal roaming SIM requires a CSQ signal strength of 14 or more. This is important because even though the meter may communicate at lower readings the service will be intermittent and unreliable. The signal strength should be checked in close proximity to the intended position of the antenna. If possible, take the antenna you intend to use and measure with that antenna to your GSM signal analyser. The position is important because the signal can vary dramatically over less than a few cms.
No matter how strong the signal may be the unit will still not connect if there is interference from other nearby RF equipment. Check that the intended site for installation is not close to sources of RF interference such as radio transmitters, high current conductors, electric motors, inverters or transformers.