Install a SIM card into a WW4G Modem

While it is always recommended that a SIM card be sent to NexSens for installation into an X-Series data logger prior to shipment, in some cases, it may be necessary for an end user to install a SIM card at their facility. The WW4G modem requires a 3FF SIM card size (12 x 15 mm; Micro-SIM).

Figure 1: X-Series Environmental
Data Logger


Caution!!!- Be sure to statically ground yourself prior to touching any of the electronics inside the X2 logger!


Installation Instructions

  1. Remove the bottom green wire from its track at the base of the data logger’s aluminum housing.
    1. Ensure to keep pressure on the top bulkhead while removing the wire to remove it completely from the track. Tweezers or needle-nose pliers can be used if needed.

Figure 2: Pull the green wire out of the housing.


  1. Gently pull up the top bulkhead to separate it from the data logger’s base.
    1. The data logger circuitry should now be exposed.

Figure 3: Separate the enclosure and the bulkhead.


  1. Locate the SIM card slot on the embedded modem at the front of the data logger above the engraved body tag.
    1. Orient the SIM card with the electronic chip facing down and the beveled edge in the top left.
    2. Insert the SIM card until it is flesh with the edge of the embedded modem.

Figure 4: 3FF SIM card installation.


  1. Re-install the top bulkhead.
    1. Ensure the inserts for the green wires are facing the same direction as the engraved body tag.

Figure 5: Orient and re-install the top bulkhead.


  1. Re-install the bottom green wire. Ensure to keep pressure on the top bulkhead to route the wire completely through the bottom track.
    1. When fully installed, a small piece of the green wire should overlap for easy access in the future.

Figure 6: Re-install the bottom green wire.


  1. Once the SIM card has been installed and the data logger is re-assembled, follow the link below to set up the cellular transmission:
    1. Enable Cellular Communication on an X-Series Data Logger Using CONNECT