7
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Cables for sensors (transducers or meters).
•
An antenna for communication of data over the mobile cellular network
(For server integration).
•
External battery (optional / if required).
•
A USB Communications cable (an accessory required for on-site installation,
programming, and data retrieval).
The system will contain interfaces for measurement of water pressure. These may be
built-in transducers (for connection to the system via water pipes) or (where external
transducers are employed) attached via cables.
The system operates from internal batteries or (optional) using an
additional external HWM battery unit (see opposite).
Where supplied, the external battery power is used to extend the
battery life of the system or more frequent communications with the
host server.
The battery connection has to be removed whenever the
communications cable is fitted; they share the same connector.
Be sure to re-connect the battery prior to leaving the unit.
Sentinel 2 compatibility with Sentinel Plus
The Sentinel 2 system replaces previous generations of HWM pressure control systems,
known as Sentinel Plus.
Existing sensors and pipework may be compatible and may be re-used with a Sentinel 2
installation if in good condition; Discuss with your HWM sales representative if required.
The USB Communications cable is compatible between Sentinel Plus and Sentinel 2
systems.
