Doc No. IM4772-7
Page 4 of 14
iSense
1
Introduction
Hanwell instruments offer a range of battery powered devices which can send their data to Synergy via GPRS
rather than low power radio. Data sent via GPRS is collected and stored on the IMC Remote Data Service,
from where your Synergy installation will retrieve it. Synergy then handles all data presentation and alarm
functionality in the normal way.
The devices log data on board and periodically send this logged data to the IMC Remote Data Service. This
send rate should normally be set low to save battery power, but in the event of an alarm the device will go into
a much faster transmission sequence. In the event of poor network coverage the device will retain data
packets and retry the send in due course
Synergy collects data associated with your iSense sensor(s), by making an outgoing TCP/IP connection to the
IMC Remote Data Service. As this connection is made to a standard HTTP port on the IMC Remote Data
Service, the system operates with the vast majority of network and Firewall configurations.
The device comes preconfigured with a SIM card fitted, so all that it is normally necessary to do is to connect
the sensor wiring (if required) and fit the battery.
A battery life of up to 3 years is achievable if the normal send rate is limited to once every 12 hours.
The actual desired send rate, logging rate and alarm levels will be sent from Synergy when first signal has
been received.
On first power up the device will send data every 5mins for 30minutes to verify correct operation.
It is also possible to have a remote radio system sending data to a CR2 which then transfers all of this
information via GPRS; in this configuration only one SIM card will be required.
