| The
HE66X Block Diagram
The illustration on the right shows the internal block structure of the
HE66X units. The signal from the sensor is conditioned using an amplifier
and a second order band pass filter. The output driver is a push pull type
utilizing passive boost. Data is coupled via RS485 conditioner to the
network. |
|
| Important:
The HE66X is extremely sensitive, while connected to a computer ungrounded
switcher power supplies from laptops and desktop can disturb the HE66X. In
case of trouble make sure any device connected to the HE66X is well
grounded. Laptops, palmtops or devices running on batteries do not disturb the unit while
connected. |
|
The communication parameters for
the HE66XP485 version are
19200 baud, 8 bit, 1 stop bit, no
parity. No Xon/Xoff handshaking
|
|
HE660 Enclosures PVC, IP68 compliant. Shape cylindrical
Size 0.8" dia, 6" long |