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Option: Remote Electronics for High Line or Gas Temperatures
Some applications involve operating temperatures outside the standard Alicat device specifi cations. A
solution using remote electronics is available. (This option is not applicable to liquid devices.)
The fl ow body’s components are minimized to only the required sensors. The fl ow data is sent to
the microprocessor electronics up to 6 feet away from the sensor package. Relocating the sensitive
electronics, including the LCD, allows for installation of the fl ow body in ambient temperatures as high
as 85° Celsius with gas temperatures under 100°Celsius.
In these applications we recommend our custom gauge calibration at a gas temperature of up to
70°Celsius. This will reduce zero shift errors that occur when actual gas fl ow temperatures deviate
substantially from the gas calibration temperature. This confi guration is also used in integrations that
require a compact fl ow package at the installation point.
Maximum distance
between electronics
and sensor package is
6 feet.
Accessory: BB-9 Multi-Drop Box
The BB-9 Multi-Drop Box makes it convenient to wire multiple fl ow and/or pressure
devices to a single RS-232 port. (Note: BB-9 is not compatible with RS-485.)
The Multi-Drop Box has nine 8 pin mini-DIN ports available. The ports are to be used
with a standard double ended 8 pin mini-DIN (DC-62) style cable going from the box
to each fl ow or pressure device. A single DB9 D-SUB type connector (COM PORT)
connects, using the included cable, to the serial connector on a PC or laptop.
All of the fl ow and/or pressure devices are powered via a terminal block on the front
of the box.
If more than nine devices will be required, additional Multi-Drop Boxes can be daisy chained together
with a double ended 8 pin mini-DIN cable plugged into any receptacle on both boxes.
BB-9 Power Supply for Large Valve Controllers: The PS24VHC (Power Supply 24Vdc High Current)
is a 6.5Amp 24Vdc power supply designed for running multiple large controllers on a BB-9.
The 6.5Amp power supply can run as many as 8 large valve controllers, which makes it ideal for the
BB9 and multiple large valve (or small valve / large valve combination) controllers on a BB-9.
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